/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:23:20,783 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:23:20,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:23:20,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:23:20,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:23:20,822 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:23:20,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:23:20,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:23:20,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:23:20,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:23:20,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:23:20,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:23:20,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:23:20,834 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:23:20,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:23:20,836 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:23:20,837 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:23:20,838 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:23:20,840 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:23:20,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:23:20,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:23:20,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:23:20,853 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:23:20,854 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:23:20,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:23:20,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:23:20,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:23:20,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:23:20,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:23:20,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:23:20,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:23:20,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:23:20,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:23:20,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:23:20,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:23:20,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:23:20,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:23:20,905 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:23:20,906 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:23:20,907 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:23:20,907 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:23:20,908 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:23:20,908 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:23:20,908 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:23:20,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:23:20,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:23:20,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:23:20,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:23:20,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:23:20,910 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:23:20,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:23:20,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:23:20,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:23:20,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:23:20,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:23:20,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:23:20,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:23:20,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:23:20,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:23:20,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:23:20,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:23:20,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:23:20,912 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:23:21,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:23:21,364 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:23:21,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:23:21,369 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:23:21,370 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:23:21,371 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:23:21,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62388c984/e015d75775cc428a9781b18a5a3c1c17/FLAG76a0b0b0f [2020-12-22 08:23:22,473 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:23:22,474 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:23:22,534 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62388c984/e015d75775cc428a9781b18a5a3c1c17/FLAG76a0b0b0f [2020-12-22 08:23:22,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62388c984/e015d75775cc428a9781b18a5a3c1c17 [2020-12-22 08:23:22,915 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:23:22,917 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:23:22,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:23:22,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:23:22,927 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:23:22,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:23:22" (1/1) ... [2020-12-22 08:23:22,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17af3cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:22, skipping insertion in model container [2020-12-22 08:23:22,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:23:22" (1/1) ... [2020-12-22 08:23:22,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:23:23,366 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:23:23,932 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26457,26470] [2020-12-22 08:23:24,001 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[32808,32821] [2020-12-22 08:23:24,099 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57440,57453] [2020-12-22 08:23:24,138 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[65495,65508] [2020-12-22 08:23:24,169 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71322,71335] [2020-12-22 08:23:24,218 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82065,82078] [2020-12-22 08:23:24,252 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90010,90023] [2020-12-22 08:23:24,280 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[97238,97251] [2020-12-22 08:23:24,435 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[131945,131958] [2020-12-22 08:23:24,456 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[135073,135086] [2020-12-22 08:23:24,487 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[143086,143099] [2020-12-22 08:23:24,507 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[148890,148903] [2020-12-22 08:23:24,569 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[171636,171649] [2020-12-22 08:23:24,668 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[199472,199485] [2020-12-22 08:23:24,728 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226025,226038] [2020-12-22 08:23:24,797 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[253326,253339] [2020-12-22 08:23:24,913 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[284433,284446] [2020-12-22 08:23:25,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:23:25,194 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:23:25,311 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[26457,26470] [2020-12-22 08:23:25,330 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[32808,32821] [2020-12-22 08:23:25,392 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[57440,57453] [2020-12-22 08:23:25,413 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[65495,65508] [2020-12-22 08:23:25,431 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[71322,71335] [2020-12-22 08:23:25,461 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82065,82078] [2020-12-22 08:23:25,481 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[90010,90023] [2020-12-22 08:23:25,500 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[97238,97251] [2020-12-22 08:23:25,589 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[131945,131958] [2020-12-22 08:23:25,598 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[135073,135086] [2020-12-22 08:23:25,622 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[143086,143099] [2020-12-22 08:23:25,639 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[148890,148903] [2020-12-22 08:23:25,697 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[171636,171649] [2020-12-22 08:23:25,758 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_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[199472,199485] [2020-12-22 08:23:25,822 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[226025,226038] [2020-12-22 08:23:25,934 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[253326,253339] [2020-12-22 08:23:26,012 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[284433,284446] [2020-12-22 08:23:26,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:23:26,284 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:23:26,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26 WrapperNode [2020-12-22 08:23:26,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:23:26,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:23:26,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:23:26,288 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:23:26,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (1/1) ... [2020-12-22 08:23:26,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (1/1) ... [2020-12-22 08:23:26,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:23:26,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:23:26,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:23:26,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:23:26,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (1/1) ... [2020-12-22 08:23:26,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (1/1) ... [2020-12-22 08:23:26,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (1/1) ... [2020-12-22 08:23:26,737 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (1/1) ... [2020-12-22 08:23:26,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (1/1) ... [2020-12-22 08:23:27,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (1/1) ... [2020-12-22 08:23:27,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (1/1) ... [2020-12-22 08:23:27,083 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:23:27,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:23:27,084 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:23:27,084 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:23:27,085 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (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 08:23:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:23:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:23:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:23:27,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:23:36,185 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:23:36,185 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:23:36,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:23:36 BoogieIcfgContainer [2020-12-22 08:23:36,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:23:36,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:23:36,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:23:36,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:23:36,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:23:22" (1/3) ... [2020-12-22 08:23:36,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe1a072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:23:36, skipping insertion in model container [2020-12-22 08:23:36,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:23:26" (2/3) ... [2020-12-22 08:23:36,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe1a072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:23:36, skipping insertion in model container [2020-12-22 08:23:36,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:23:36" (3/3) ... [2020-12-22 08:23:36,200 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:23:36,207 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:23:36,227 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-12-22 08:23:36,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-12-22 08:23:36,289 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:23:36,289 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:23:36,290 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:23:36,290 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:23:36,290 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:23:36,290 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:23:36,290 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:23:36,290 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:23:36,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states. [2020-12-22 08:23:36,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 08:23:36,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:36,390 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] [2020-12-22 08:23:36,390 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:36,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:36,397 INFO L82 PathProgramCache]: Analyzing trace with hash -912153875, now seen corresponding path program 1 times [2020-12-22 08:23:36,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:36,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650263047] [2020-12-22 08:23:36,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:36,989 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 08:23:36,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650263047] [2020-12-22 08:23:36,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:36,991 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:23:36,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758530234] [2020-12-22 08:23:36,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:23:36,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:37,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:23:37,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:23:37,014 INFO L87 Difference]: Start difference. First operand 3532 states. Second operand 5 states. [2020-12-22 08:23:42,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:42,672 INFO L93 Difference]: Finished difference Result 6649 states and 11844 transitions. [2020-12-22 08:23:42,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:23:42,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-12-22 08:23:42,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:42,733 INFO L225 Difference]: With dead ends: 6649 [2020-12-22 08:23:42,733 INFO L226 Difference]: Without dead ends: 4229 [2020-12-22 08:23:42,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 08:23:42,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4229 states. [2020-12-22 08:23:42,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4229 to 4205. [2020-12-22 08:23:42,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4205 states. [2020-12-22 08:23:42,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4205 states to 4205 states and 5606 transitions. [2020-12-22 08:23:42,972 INFO L78 Accepts]: Start accepts. Automaton has 4205 states and 5606 transitions. Word has length 64 [2020-12-22 08:23:42,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:42,972 INFO L481 AbstractCegarLoop]: Abstraction has 4205 states and 5606 transitions. [2020-12-22 08:23:42,972 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:23:42,973 INFO L276 IsEmpty]: Start isEmpty. Operand 4205 states and 5606 transitions. [2020-12-22 08:23:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 08:23:42,983 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:42,983 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] [2020-12-22 08:23:42,984 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:23:42,984 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:42,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:42,985 INFO L82 PathProgramCache]: Analyzing trace with hash -919069742, now seen corresponding path program 1 times [2020-12-22 08:23:42,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:42,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655739767] [2020-12-22 08:23:42,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:43,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:43,188 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 08:23:43,189 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655739767] [2020-12-22 08:23:43,189 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:43,189 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:23:43,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006085882] [2020-12-22 08:23:43,191 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:23:43,191 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:43,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:23:43,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:23:43,193 INFO L87 Difference]: Start difference. First operand 4205 states and 5606 transitions. Second operand 6 states. [2020-12-22 08:23:46,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:46,906 INFO L93 Difference]: Finished difference Result 8537 states and 11429 transitions. [2020-12-22 08:23:46,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:23:46,907 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-12-22 08:23:46,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:46,937 INFO L225 Difference]: With dead ends: 8537 [2020-12-22 08:23:46,937 INFO L226 Difference]: Without dead ends: 5502 [2020-12-22 08:23:46,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:23:46,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2020-12-22 08:23:47,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5470. [2020-12-22 08:23:47,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5470 states. [2020-12-22 08:23:47,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 7378 transitions. [2020-12-22 08:23:47,204 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 7378 transitions. Word has length 65 [2020-12-22 08:23:47,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:47,205 INFO L481 AbstractCegarLoop]: Abstraction has 5470 states and 7378 transitions. [2020-12-22 08:23:47,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:23:47,205 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 7378 transitions. [2020-12-22 08:23:47,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 08:23:47,215 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:47,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:47,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:23:47,217 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:47,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:47,217 INFO L82 PathProgramCache]: Analyzing trace with hash -1793005613, now seen corresponding path program 1 times [2020-12-22 08:23:47,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:47,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746961860] [2020-12-22 08:23:47,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:47,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:47,375 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 08:23:47,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746961860] [2020-12-22 08:23:47,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:47,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:23:47,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555423651] [2020-12-22 08:23:47,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:23:47,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:47,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:23:47,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:23:47,378 INFO L87 Difference]: Start difference. First operand 5470 states and 7378 transitions. Second operand 6 states. [2020-12-22 08:23:50,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:50,768 INFO L93 Difference]: Finished difference Result 12651 states and 17152 transitions. [2020-12-22 08:23:50,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:23:50,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2020-12-22 08:23:50,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:50,813 INFO L225 Difference]: With dead ends: 12651 [2020-12-22 08:23:50,814 INFO L226 Difference]: Without dead ends: 9024 [2020-12-22 08:23:50,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:23:50,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9024 states. [2020-12-22 08:23:51,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9024 to 8983. [2020-12-22 08:23:51,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8983 states. [2020-12-22 08:23:51,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8983 states to 8983 states and 12220 transitions. [2020-12-22 08:23:51,329 INFO L78 Accepts]: Start accepts. Automaton has 8983 states and 12220 transitions. Word has length 65 [2020-12-22 08:23:51,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:51,329 INFO L481 AbstractCegarLoop]: Abstraction has 8983 states and 12220 transitions. [2020-12-22 08:23:51,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:23:51,330 INFO L276 IsEmpty]: Start isEmpty. Operand 8983 states and 12220 transitions. [2020-12-22 08:23:51,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:23:51,341 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:51,341 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] [2020-12-22 08:23:51,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:23:51,342 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:51,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:51,342 INFO L82 PathProgramCache]: Analyzing trace with hash -958325289, now seen corresponding path program 1 times [2020-12-22 08:23:51,343 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:51,343 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059211634] [2020-12-22 08:23:51,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:51,467 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 08:23:51,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059211634] [2020-12-22 08:23:51,468 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:51,468 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:23:51,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471029534] [2020-12-22 08:23:51,469 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:23:51,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:51,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:23:51,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:23:51,470 INFO L87 Difference]: Start difference. First operand 8983 states and 12220 transitions. Second operand 6 states. [2020-12-22 08:23:54,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:54,340 INFO L93 Difference]: Finished difference Result 20804 states and 28798 transitions. [2020-12-22 08:23:54,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:23:54,341 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-12-22 08:23:54,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:54,416 INFO L225 Difference]: With dead ends: 20804 [2020-12-22 08:23:54,416 INFO L226 Difference]: Without dead ends: 14736 [2020-12-22 08:23:54,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:23:54,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14736 states. [2020-12-22 08:23:55,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14736 to 14691. [2020-12-22 08:23:55,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14691 states. [2020-12-22 08:23:55,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14691 states to 14691 states and 20374 transitions. [2020-12-22 08:23:55,086 INFO L78 Accepts]: Start accepts. Automaton has 14691 states and 20374 transitions. Word has length 66 [2020-12-22 08:23:55,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:55,086 INFO L481 AbstractCegarLoop]: Abstraction has 14691 states and 20374 transitions. [2020-12-22 08:23:55,086 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:23:55,086 INFO L276 IsEmpty]: Start isEmpty. Operand 14691 states and 20374 transitions. [2020-12-22 08:23:55,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:23:55,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:55,098 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] [2020-12-22 08:23:55,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:23:55,098 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:55,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:55,099 INFO L82 PathProgramCache]: Analyzing trace with hash 215811001, now seen corresponding path program 1 times [2020-12-22 08:23:55,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:55,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853785488] [2020-12-22 08:23:55,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:55,355 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 08:23:55,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853785488] [2020-12-22 08:23:55,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:55,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:23:55,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506434803] [2020-12-22 08:23:55,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:23:55,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:55,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:23:55,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:23:55,359 INFO L87 Difference]: Start difference. First operand 14691 states and 20374 transitions. Second operand 9 states. [2020-12-22 08:24:03,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:03,935 INFO L93 Difference]: Finished difference Result 44987 states and 65455 transitions. [2020-12-22 08:24:03,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:24:03,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 66 [2020-12-22 08:24:03,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:04,025 INFO L225 Difference]: With dead ends: 44987 [2020-12-22 08:24:04,026 INFO L226 Difference]: Without dead ends: 40903 [2020-12-22 08:24:04,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:24:04,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40903 states. [2020-12-22 08:24:05,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40903 to 14609. [2020-12-22 08:24:05,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14609 states. [2020-12-22 08:24:05,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14609 states to 14609 states and 20257 transitions. [2020-12-22 08:24:05,187 INFO L78 Accepts]: Start accepts. Automaton has 14609 states and 20257 transitions. Word has length 66 [2020-12-22 08:24:05,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:05,188 INFO L481 AbstractCegarLoop]: Abstraction has 14609 states and 20257 transitions. [2020-12-22 08:24:05,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:24:05,188 INFO L276 IsEmpty]: Start isEmpty. Operand 14609 states and 20257 transitions. [2020-12-22 08:24:05,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:24:05,199 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:05,199 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] [2020-12-22 08:24:05,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:24:05,200 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:05,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:05,200 INFO L82 PathProgramCache]: Analyzing trace with hash -531315301, now seen corresponding path program 1 times [2020-12-22 08:24:05,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:05,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711205791] [2020-12-22 08:24:05,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:05,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:05,454 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 08:24:05,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711205791] [2020-12-22 08:24:05,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:05,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:24:05,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927926535] [2020-12-22 08:24:05,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:24:05,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:05,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:24:05,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:24:05,468 INFO L87 Difference]: Start difference. First operand 14609 states and 20257 transitions. Second operand 8 states. [2020-12-22 08:24:12,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:12,202 INFO L93 Difference]: Finished difference Result 33128 states and 49027 transitions. [2020-12-22 08:24:12,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:24:12,203 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 66 [2020-12-22 08:24:12,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:12,266 INFO L225 Difference]: With dead ends: 33128 [2020-12-22 08:24:12,266 INFO L226 Difference]: Without dead ends: 28854 [2020-12-22 08:24:12,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:24:12,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28854 states. [2020-12-22 08:24:12,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28854 to 14355. [2020-12-22 08:24:12,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14355 states. [2020-12-22 08:24:12,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14355 states to 14355 states and 19913 transitions. [2020-12-22 08:24:12,998 INFO L78 Accepts]: Start accepts. Automaton has 14355 states and 19913 transitions. Word has length 66 [2020-12-22 08:24:12,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:12,998 INFO L481 AbstractCegarLoop]: Abstraction has 14355 states and 19913 transitions. [2020-12-22 08:24:12,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:24:12,998 INFO L276 IsEmpty]: Start isEmpty. Operand 14355 states and 19913 transitions. [2020-12-22 08:24:13,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:24:13,007 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:13,007 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] [2020-12-22 08:24:13,008 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:24:13,008 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:13,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:13,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1567621872, now seen corresponding path program 1 times [2020-12-22 08:24:13,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:13,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107683556] [2020-12-22 08:24:13,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:13,202 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 08:24:13,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107683556] [2020-12-22 08:24:13,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:13,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:24:13,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428966417] [2020-12-22 08:24:13,203 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:24:13,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:13,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:24:13,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:24:13,204 INFO L87 Difference]: Start difference. First operand 14355 states and 19913 transitions. Second operand 9 states. [2020-12-22 08:24:21,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:21,132 INFO L93 Difference]: Finished difference Result 22754 states and 32559 transitions. [2020-12-22 08:24:21,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:24:21,133 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-12-22 08:24:21,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:21,159 INFO L225 Difference]: With dead ends: 22754 [2020-12-22 08:24:21,159 INFO L226 Difference]: Without dead ends: 22746 [2020-12-22 08:24:21,165 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:24:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22746 states. [2020-12-22 08:24:21,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22746 to 14355. [2020-12-22 08:24:21,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14355 states. [2020-12-22 08:24:21,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14355 states to 14355 states and 19912 transitions. [2020-12-22 08:24:21,895 INFO L78 Accepts]: Start accepts. Automaton has 14355 states and 19912 transitions. Word has length 67 [2020-12-22 08:24:21,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:21,895 INFO L481 AbstractCegarLoop]: Abstraction has 14355 states and 19912 transitions. [2020-12-22 08:24:21,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:24:21,895 INFO L276 IsEmpty]: Start isEmpty. Operand 14355 states and 19912 transitions. [2020-12-22 08:24:21,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:24:21,906 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:21,906 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] [2020-12-22 08:24:21,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:24:21,907 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:21,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:21,907 INFO L82 PathProgramCache]: Analyzing trace with hash 435988824, now seen corresponding path program 1 times [2020-12-22 08:24:21,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:21,908 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901549485] [2020-12-22 08:24:21,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:21,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:22,124 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 08:24:22,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901549485] [2020-12-22 08:24:22,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:22,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:24:22,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963145731] [2020-12-22 08:24:22,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:24:22,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:22,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:24:22,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:24:22,126 INFO L87 Difference]: Start difference. First operand 14355 states and 19912 transitions. Second operand 9 states. [2020-12-22 08:24:28,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:28,779 INFO L93 Difference]: Finished difference Result 19738 states and 28202 transitions. [2020-12-22 08:24:28,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:24:28,780 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 67 [2020-12-22 08:24:28,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:28,797 INFO L225 Difference]: With dead ends: 19738 [2020-12-22 08:24:28,797 INFO L226 Difference]: Without dead ends: 19733 [2020-12-22 08:24:28,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:24:28,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19733 states. [2020-12-22 08:24:29,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19733 to 14355. [2020-12-22 08:24:29,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14355 states. [2020-12-22 08:24:29,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14355 states to 14355 states and 19911 transitions. [2020-12-22 08:24:29,652 INFO L78 Accepts]: Start accepts. Automaton has 14355 states and 19911 transitions. Word has length 67 [2020-12-22 08:24:29,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:29,652 INFO L481 AbstractCegarLoop]: Abstraction has 14355 states and 19911 transitions. [2020-12-22 08:24:29,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:24:29,652 INFO L276 IsEmpty]: Start isEmpty. Operand 14355 states and 19911 transitions. [2020-12-22 08:24:29,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:24:29,662 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:29,662 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] [2020-12-22 08:24:29,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:24:29,663 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:29,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:29,663 INFO L82 PathProgramCache]: Analyzing trace with hash -2090357239, now seen corresponding path program 1 times [2020-12-22 08:24:29,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:29,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436339789] [2020-12-22 08:24:29,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:29,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:30,713 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 08:24:30,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436339789] [2020-12-22 08:24:30,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:30,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-22 08:24:30,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122875848] [2020-12-22 08:24:30,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-22 08:24:30,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:30,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-22 08:24:30,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=234, Unknown=0, NotChecked=0, Total=272 [2020-12-22 08:24:30,715 INFO L87 Difference]: Start difference. First operand 14355 states and 19911 transitions. Second operand 17 states. [2020-12-22 08:24:31,038 WARN L197 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-12-22 08:24:31,196 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-12-22 08:24:31,460 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-12-22 08:24:31,704 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-12-22 08:24:31,989 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-22 08:24:32,293 WARN L197 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2020-12-22 08:24:32,706 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-22 08:24:33,274 WARN L197 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-12-22 08:24:34,059 WARN L197 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-12-22 08:24:35,047 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2020-12-22 08:24:35,346 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-22 08:24:35,785 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2020-12-22 08:24:36,297 WARN L197 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2020-12-22 08:24:36,773 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-12-22 08:24:37,109 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-12-22 08:24:38,798 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-12-22 08:24:39,799 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2020-12-22 08:24:40,639 WARN L197 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2020-12-22 08:24:41,191 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-12-22 08:24:45,903 WARN L197 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-12-22 08:24:46,887 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-12-22 08:24:48,493 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2020-12-22 08:24:49,291 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2020-12-22 08:24:49,992 WARN L197 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-22 08:24:50,919 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2020-12-22 08:24:51,812 WARN L197 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-22 08:24:52,611 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-12-22 08:24:53,198 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-22 08:24:53,603 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-12-22 08:24:54,013 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-22 08:24:54,655 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-22 08:24:55,263 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:24:55,626 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2020-12-22 08:24:55,912 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-22 08:24:56,940 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-12-22 08:24:57,360 WARN L197 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-12-22 08:24:57,837 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-22 08:24:58,257 WARN L197 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-22 08:24:58,570 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-12-22 08:24:58,991 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-22 08:24:59,249 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-12-22 08:24:59,479 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-22 08:24:59,903 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2020-12-22 08:25:00,169 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2020-12-22 08:25:00,612 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-22 08:25:01,031 WARN L197 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-22 08:25:01,559 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-12-22 08:25:01,814 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-12-22 08:25:02,324 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-12-22 08:25:02,932 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-12-22 08:25:04,600 WARN L197 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-12-22 08:25:06,091 WARN L197 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-22 08:25:06,812 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-12-22 08:25:07,611 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-22 08:25:08,131 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-12-22 08:25:08,606 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-22 08:25:09,066 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-22 08:25:09,417 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-22 08:25:09,774 WARN L197 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-12-22 08:25:10,472 WARN L197 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:25:10,903 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-22 08:25:11,116 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:25:11,417 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-22 08:25:11,810 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-12-22 08:25:12,155 WARN L197 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:25:12,854 WARN L197 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-22 08:25:13,336 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-22 08:25:16,149 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-22 08:25:16,558 WARN L197 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-22 08:25:17,055 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-22 08:25:17,459 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:25:18,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:25:18,662 INFO L93 Difference]: Finished difference Result 104403 states and 159811 transitions. [2020-12-22 08:25:18,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2020-12-22 08:25:18,663 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 67 [2020-12-22 08:25:18,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:25:18,874 INFO L225 Difference]: With dead ends: 104403 [2020-12-22 08:25:18,875 INFO L226 Difference]: Without dead ends: 104399 [2020-12-22 08:25:18,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3100 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=1736, Invalid=6820, Unknown=0, NotChecked=0, Total=8556 [2020-12-22 08:25:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104399 states. [2020-12-22 08:25:20,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104399 to 14351. [2020-12-22 08:25:20,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14351 states. [2020-12-22 08:25:20,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14351 states to 14351 states and 19907 transitions. [2020-12-22 08:25:20,761 INFO L78 Accepts]: Start accepts. Automaton has 14351 states and 19907 transitions. Word has length 67 [2020-12-22 08:25:20,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:25:20,762 INFO L481 AbstractCegarLoop]: Abstraction has 14351 states and 19907 transitions. [2020-12-22 08:25:20,762 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-22 08:25:20,762 INFO L276 IsEmpty]: Start isEmpty. Operand 14351 states and 19907 transitions. [2020-12-22 08:25:20,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:25:20,771 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:25:20,771 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] [2020-12-22 08:25:20,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:25:20,772 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:25:20,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:25:20,772 INFO L82 PathProgramCache]: Analyzing trace with hash 822338575, now seen corresponding path program 1 times [2020-12-22 08:25:20,772 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:25:20,772 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663550493] [2020-12-22 08:25:20,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:25:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:25:21,254 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 08:25:21,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663550493] [2020-12-22 08:25:21,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:25:21,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:25:21,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768283044] [2020-12-22 08:25:21,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:25:21,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:25:21,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:25:21,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:25:21,256 INFO L87 Difference]: Start difference. First operand 14351 states and 19907 transitions. Second operand 12 states. [2020-12-22 08:25:21,849 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-12-22 08:25:22,115 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-12-22 08:25:23,264 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2020-12-22 08:25:35,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:25:35,720 INFO L93 Difference]: Finished difference Result 54120 states and 81674 transitions. [2020-12-22 08:25:35,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-12-22 08:25:35,721 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2020-12-22 08:25:35,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:25:35,775 INFO L225 Difference]: With dead ends: 54120 [2020-12-22 08:25:35,775 INFO L226 Difference]: Without dead ends: 54116 [2020-12-22 08:25:35,785 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:25:35,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54116 states. [2020-12-22 08:25:37,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54116 to 14347. [2020-12-22 08:25:37,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14347 states. [2020-12-22 08:25:37,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14347 states to 14347 states and 19903 transitions. [2020-12-22 08:25:37,511 INFO L78 Accepts]: Start accepts. Automaton has 14347 states and 19903 transitions. Word has length 67 [2020-12-22 08:25:37,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:25:37,511 INFO L481 AbstractCegarLoop]: Abstraction has 14347 states and 19903 transitions. [2020-12-22 08:25:37,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:25:37,511 INFO L276 IsEmpty]: Start isEmpty. Operand 14347 states and 19903 transitions. [2020-12-22 08:25:37,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:25:37,521 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:25:37,521 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] [2020-12-22 08:25:37,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:25:37,521 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:25:37,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:25:37,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1877034391, now seen corresponding path program 1 times [2020-12-22 08:25:37,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:25:37,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251055752] [2020-12-22 08:25:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:25:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:25:37,979 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 08:25:37,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251055752] [2020-12-22 08:25:37,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:25:37,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:25:37,980 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808883770] [2020-12-22 08:25:37,981 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:25:37,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:25:37,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:25:37,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:25:37,991 INFO L87 Difference]: Start difference. First operand 14347 states and 19903 transitions. Second operand 12 states. [2020-12-22 08:25:50,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:25:50,495 INFO L93 Difference]: Finished difference Result 37267 states and 54309 transitions. [2020-12-22 08:25:50,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 08:25:50,496 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 68 [2020-12-22 08:25:50,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:25:50,530 INFO L225 Difference]: With dead ends: 37267 [2020-12-22 08:25:50,530 INFO L226 Difference]: Without dead ends: 37256 [2020-12-22 08:25:50,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:25:50,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37256 states. [2020-12-22 08:25:52,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37256 to 14341. [2020-12-22 08:25:52,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14341 states. [2020-12-22 08:25:52,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14341 states to 14341 states and 19896 transitions. [2020-12-22 08:25:52,340 INFO L78 Accepts]: Start accepts. Automaton has 14341 states and 19896 transitions. Word has length 68 [2020-12-22 08:25:52,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:25:52,340 INFO L481 AbstractCegarLoop]: Abstraction has 14341 states and 19896 transitions. [2020-12-22 08:25:52,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:25:52,340 INFO L276 IsEmpty]: Start isEmpty. Operand 14341 states and 19896 transitions. [2020-12-22 08:25:52,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:25:52,347 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:25:52,347 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] [2020-12-22 08:25:52,347 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:25:52,347 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:25:52,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:25:52,348 INFO L82 PathProgramCache]: Analyzing trace with hash 702049040, now seen corresponding path program 1 times [2020-12-22 08:25:52,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:25:52,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282706744] [2020-12-22 08:25:52,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:25:52,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:25:52,533 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 08:25:52,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282706744] [2020-12-22 08:25:52,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:25:52,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:25:52,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221278571] [2020-12-22 08:25:52,535 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:25:52,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:25:52,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:25:52,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:25:52,539 INFO L87 Difference]: Start difference. First operand 14341 states and 19896 transitions. Second operand 8 states. [2020-12-22 08:26:03,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:03,642 INFO L93 Difference]: Finished difference Result 33558 states and 49567 transitions. [2020-12-22 08:26:03,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:26:03,643 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-12-22 08:26:03,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:03,669 INFO L225 Difference]: With dead ends: 33558 [2020-12-22 08:26:03,670 INFO L226 Difference]: Without dead ends: 28835 [2020-12-22 08:26:03,680 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:26:03,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28835 states. [2020-12-22 08:26:05,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28835 to 14341. [2020-12-22 08:26:05,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14341 states. [2020-12-22 08:26:05,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14341 states to 14341 states and 19895 transitions. [2020-12-22 08:26:05,537 INFO L78 Accepts]: Start accepts. Automaton has 14341 states and 19895 transitions. Word has length 68 [2020-12-22 08:26:05,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:05,537 INFO L481 AbstractCegarLoop]: Abstraction has 14341 states and 19895 transitions. [2020-12-22 08:26:05,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:26:05,537 INFO L276 IsEmpty]: Start isEmpty. Operand 14341 states and 19895 transitions. [2020-12-22 08:26:05,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:26:05,544 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:05,544 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] [2020-12-22 08:26:05,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:26:05,546 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:05,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1625518918, now seen corresponding path program 1 times [2020-12-22 08:26:05,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:05,547 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769819010] [2020-12-22 08:26:05,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:05,729 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 08:26:05,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1769819010] [2020-12-22 08:26:05,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:05,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:26:05,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157523791] [2020-12-22 08:26:05,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:26:05,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:05,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:26:05,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:26:05,731 INFO L87 Difference]: Start difference. First operand 14341 states and 19895 transitions. Second operand 9 states. [2020-12-22 08:26:20,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:20,499 INFO L93 Difference]: Finished difference Result 36086 states and 53243 transitions. [2020-12-22 08:26:20,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:26:20,500 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-12-22 08:26:20,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:20,540 INFO L225 Difference]: With dead ends: 36086 [2020-12-22 08:26:20,540 INFO L226 Difference]: Without dead ends: 32065 [2020-12-22 08:26:20,551 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:26:20,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32065 states. [2020-12-22 08:26:22,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32065 to 14341. [2020-12-22 08:26:22,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14341 states. [2020-12-22 08:26:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14341 states to 14341 states and 19894 transitions. [2020-12-22 08:26:22,375 INFO L78 Accepts]: Start accepts. Automaton has 14341 states and 19894 transitions. Word has length 68 [2020-12-22 08:26:22,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:22,376 INFO L481 AbstractCegarLoop]: Abstraction has 14341 states and 19894 transitions. [2020-12-22 08:26:22,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:26:22,376 INFO L276 IsEmpty]: Start isEmpty. Operand 14341 states and 19894 transitions. [2020-12-22 08:26:22,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:26:22,382 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:22,383 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] [2020-12-22 08:26:22,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:26:22,383 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:22,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:22,383 INFO L82 PathProgramCache]: Analyzing trace with hash -1023482213, now seen corresponding path program 1 times [2020-12-22 08:26:22,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:22,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588109215] [2020-12-22 08:26:22,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:22,550 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 08:26:22,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588109215] [2020-12-22 08:26:22,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:22,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:26:22,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530114603] [2020-12-22 08:26:22,551 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:26:22,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:22,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:26:22,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:26:22,552 INFO L87 Difference]: Start difference. First operand 14341 states and 19894 transitions. Second operand 9 states. [2020-12-22 08:26:39,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:26:39,111 INFO L93 Difference]: Finished difference Result 43871 states and 64003 transitions. [2020-12-22 08:26:39,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:26:39,112 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-12-22 08:26:39,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:26:39,147 INFO L225 Difference]: With dead ends: 43871 [2020-12-22 08:26:39,148 INFO L226 Difference]: Without dead ends: 39775 [2020-12-22 08:26:39,157 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:26:39,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39775 states. [2020-12-22 08:26:40,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39775 to 14341. [2020-12-22 08:26:40,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14341 states. [2020-12-22 08:26:41,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14341 states to 14341 states and 19893 transitions. [2020-12-22 08:26:41,016 INFO L78 Accepts]: Start accepts. Automaton has 14341 states and 19893 transitions. Word has length 68 [2020-12-22 08:26:41,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:26:41,016 INFO L481 AbstractCegarLoop]: Abstraction has 14341 states and 19893 transitions. [2020-12-22 08:26:41,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:26:41,016 INFO L276 IsEmpty]: Start isEmpty. Operand 14341 states and 19893 transitions. [2020-12-22 08:26:41,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:26:41,024 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:26:41,024 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] [2020-12-22 08:26:41,024 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:26:41,024 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:26:41,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:26:41,025 INFO L82 PathProgramCache]: Analyzing trace with hash -53728106, now seen corresponding path program 1 times [2020-12-22 08:26:41,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:26:41,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986465460] [2020-12-22 08:26:41,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:26:41,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:26:41,388 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 08:26:41,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986465460] [2020-12-22 08:26:41,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:26:41,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:26:41,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296602452] [2020-12-22 08:26:41,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:26:41,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:26:41,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:26:41,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:26:41,391 INFO L87 Difference]: Start difference. First operand 14341 states and 19893 transitions. Second operand 12 states. [2020-12-22 08:26:44,956 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2020-12-22 08:26:51,730 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2020-12-22 08:27:00,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:27:00,297 INFO L93 Difference]: Finished difference Result 50673 states and 74843 transitions. [2020-12-22 08:27:00,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 08:27:00,298 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 68 [2020-12-22 08:27:00,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:27:00,338 INFO L225 Difference]: With dead ends: 50673 [2020-12-22 08:27:00,338 INFO L226 Difference]: Without dead ends: 46353 [2020-12-22 08:27:00,349 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=191, Invalid=459, Unknown=0, NotChecked=0, Total=650 [2020-12-22 08:27:00,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46353 states. [2020-12-22 08:27:02,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46353 to 14019. [2020-12-22 08:27:02,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14019 states. [2020-12-22 08:27:02,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14019 states to 14019 states and 19424 transitions. [2020-12-22 08:27:02,491 INFO L78 Accepts]: Start accepts. Automaton has 14019 states and 19424 transitions. Word has length 68 [2020-12-22 08:27:02,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:27:02,491 INFO L481 AbstractCegarLoop]: Abstraction has 14019 states and 19424 transitions. [2020-12-22 08:27:02,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:27:02,491 INFO L276 IsEmpty]: Start isEmpty. Operand 14019 states and 19424 transitions. [2020-12-22 08:27:02,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:27:02,497 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:27:02,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:27:02,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:27:02,498 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:27:02,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:27:02,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1836776824, now seen corresponding path program 1 times [2020-12-22 08:27:02,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:27:02,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185163647] [2020-12-22 08:27:02,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:27:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:27:02,556 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 08:27:02,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185163647] [2020-12-22 08:27:02,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:27:02,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:27:02,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369175014] [2020-12-22 08:27:02,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:27:02,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:27:02,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:27:02,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:27:02,558 INFO L87 Difference]: Start difference. First operand 14019 states and 19424 transitions. Second operand 3 states. [2020-12-22 08:27:05,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:27:05,363 INFO L93 Difference]: Finished difference Result 22080 states and 31627 transitions. [2020-12-22 08:27:05,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:27:05,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2020-12-22 08:27:05,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:27:05,375 INFO L225 Difference]: With dead ends: 22080 [2020-12-22 08:27:05,375 INFO L226 Difference]: Without dead ends: 13433 [2020-12-22 08:27:05,383 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 08:27:05,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13433 states. [2020-12-22 08:27:07,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13433 to 13415. [2020-12-22 08:27:07,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13415 states. [2020-12-22 08:27:07,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13415 states to 13415 states and 19147 transitions. [2020-12-22 08:27:07,895 INFO L78 Accepts]: Start accepts. Automaton has 13415 states and 19147 transitions. Word has length 68 [2020-12-22 08:27:07,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:27:07,895 INFO L481 AbstractCegarLoop]: Abstraction has 13415 states and 19147 transitions. [2020-12-22 08:27:07,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:27:07,895 INFO L276 IsEmpty]: Start isEmpty. Operand 13415 states and 19147 transitions. [2020-12-22 08:27:07,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:27:07,899 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:27:07,899 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] [2020-12-22 08:27:07,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:27:07,900 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:27:07,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:27:07,900 INFO L82 PathProgramCache]: Analyzing trace with hash 837543786, now seen corresponding path program 1 times [2020-12-22 08:27:07,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:27:07,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245421478] [2020-12-22 08:27:07,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:27:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:27:07,964 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 08:27:07,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245421478] [2020-12-22 08:27:07,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:27:07,965 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:27:07,965 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85573677] [2020-12-22 08:27:07,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:27:07,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:27:07,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:27:07,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:27:07,967 INFO L87 Difference]: Start difference. First operand 13415 states and 19147 transitions. Second operand 3 states. [2020-12-22 08:27:11,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:27:11,897 INFO L93 Difference]: Finished difference Result 25460 states and 37514 transitions. [2020-12-22 08:27:11,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:27:11,898 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-12-22 08:27:11,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:27:11,912 INFO L225 Difference]: With dead ends: 25460 [2020-12-22 08:27:11,912 INFO L226 Difference]: Without dead ends: 15805 [2020-12-22 08:27:11,920 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 08:27:11,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15805 states. [2020-12-22 08:27:15,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15805 to 15797. [2020-12-22 08:27:15,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15797 states. [2020-12-22 08:27:15,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15797 states to 15797 states and 23229 transitions. [2020-12-22 08:27:15,377 INFO L78 Accepts]: Start accepts. Automaton has 15797 states and 23229 transitions. Word has length 69 [2020-12-22 08:27:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:27:15,377 INFO L481 AbstractCegarLoop]: Abstraction has 15797 states and 23229 transitions. [2020-12-22 08:27:15,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:27:15,378 INFO L276 IsEmpty]: Start isEmpty. Operand 15797 states and 23229 transitions. [2020-12-22 08:27:15,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:27:15,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:27:15,381 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] [2020-12-22 08:27:15,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:27:15,382 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:27:15,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:27:15,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1076361939, now seen corresponding path program 1 times [2020-12-22 08:27:15,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:27:15,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134600984] [2020-12-22 08:27:15,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:27:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:27:15,465 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 08:27:15,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134600984] [2020-12-22 08:27:15,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:27:15,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:27:15,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882656666] [2020-12-22 08:27:15,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:27:15,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:27:15,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:27:15,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:27:15,469 INFO L87 Difference]: Start difference. First operand 15797 states and 23229 transitions. Second operand 3 states.