/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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:29:39,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:29:39,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:29:39,786 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:29:39,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:29:39,790 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:29:39,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:29:39,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:29:39,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:29:39,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:29:39,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:29:39,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:29:39,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:29:39,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:29:39,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:29:39,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:29:39,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:29:39,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:29:39,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:29:39,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:29:39,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:29:39,856 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:29:39,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:29:39,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:29:39,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:29:39,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:29:39,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:29:39,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:29:39,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:29:39,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:29:39,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:29:39,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:29:39,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:29:39,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:29:39,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:29:39,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:29:39,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:29:39,927 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:29:39,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:29:39,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:29:39,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:29:39,932 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:29:39,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:29:39,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:29:39,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:29:39,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:29:39,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:29:39,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:29:39,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:29:39,935 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:29:39,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:29:39,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:29:39,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:29:39,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:29:39,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:29:39,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:29:39,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:29:39,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:29:39,937 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:29:39,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:29:39,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:29:39,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:29:39,937 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:29:40,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:29:40,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:29:40,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:29:40,382 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:29:40,383 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:29:40,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-12-22 08:29:40,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4e3bd8c3/b89fd30e2b1b4d649beb3a3ce3d4362f/FLAGcb31ba055 [2020-12-22 08:29:41,897 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:29:41,899 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-12-22 08:29:41,969 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4e3bd8c3/b89fd30e2b1b4d649beb3a3ce3d4362f/FLAGcb31ba055 [2020-12-22 08:29:42,008 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4e3bd8c3/b89fd30e2b1b4d649beb3a3ce3d4362f [2020-12-22 08:29:42,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:29:42,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:29:42,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:29:42,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:29:42,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:29:42,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:29:42" (1/1) ... [2020-12-22 08:29:42,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5118d60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:42, skipping insertion in model container [2020-12-22 08:29:42,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:29:42" (1/1) ... [2020-12-22 08:29:42,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:29:42,474 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:29:43,551 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[93476,93489] [2020-12-22 08:29:43,686 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127573,127586] [2020-12-22 08:29:43,877 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[184269,184282] [2020-12-22 08:29:43,998 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[219628,219641] [2020-12-22 08:29:44,038 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[229397,229410] [2020-12-22 08:29:44,046 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[231647,231660] [2020-12-22 08:29:44,099 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[249298,249311] [2020-12-22 08:29:44,122 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[257319,257332] [2020-12-22 08:29:44,213 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[288049,288062] [2020-12-22 08:29:44,315 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[317789,317802] [2020-12-22 08:29:44,568 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[405848,405861] [2020-12-22 08:29:44,628 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[424927,424940] [2020-12-22 08:29:44,733 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[445507,445520] [2020-12-22 08:29:44,757 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[453082,453095] [2020-12-22 08:29:44,770 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[456880,456893] [2020-12-22 08:29:44,827 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[472479,472492] [2020-12-22 08:29:44,872 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[488367,488380] [2020-12-22 08:29:44,972 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[522919,522932] [2020-12-22 08:29:45,224 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[617568,617581] [2020-12-22 08:29:45,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:29:45,523 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:29:45,768 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[93476,93489] [2020-12-22 08:29:45,849 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[127573,127586] [2020-12-22 08:29:46,067 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[184269,184282] [2020-12-22 08:29:46,146 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[219628,219641] [2020-12-22 08:29:46,170 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[229397,229410] [2020-12-22 08:29:46,176 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[231647,231660] [2020-12-22 08:29:46,219 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[249298,249311] [2020-12-22 08:29:46,238 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[257319,257332] [2020-12-22 08:29:46,311 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[288049,288062] [2020-12-22 08:29:46,385 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[317789,317802] [2020-12-22 08:29:46,592 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[405848,405861] [2020-12-22 08:29:46,641 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[424927,424940] [2020-12-22 08:29:46,693 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[445507,445520] [2020-12-22 08:29:46,713 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[453082,453095] [2020-12-22 08:29:46,724 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[456880,456893] [2020-12-22 08:29:46,760 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[472479,472492] [2020-12-22 08:29:46,799 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[488367,488380] [2020-12-22 08:29:46,879 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[522919,522932] [2020-12-22 08:29:47,141 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.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c[617568,617581] [2020-12-22 08:29:47,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:29:47,424 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:29:47,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47 WrapperNode [2020-12-22 08:29:47,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:29:47,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:29:47,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:29:47,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:29:47,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (1/1) ... [2020-12-22 08:29:47,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (1/1) ... [2020-12-22 08:29:48,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:29:48,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:29:48,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:29:48,181 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:29:48,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (1/1) ... [2020-12-22 08:29:48,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (1/1) ... [2020-12-22 08:29:48,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (1/1) ... [2020-12-22 08:29:48,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (1/1) ... [2020-12-22 08:29:48,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (1/1) ... [2020-12-22 08:29:48,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (1/1) ... [2020-12-22 08:29:48,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (1/1) ... [2020-12-22 08:29:48,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:29:48,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:29:48,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:29:48,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:29:48,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (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 08:29:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:29:48,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:29:48,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:29:48,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:30:04,666 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:30:04,666 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:30:04,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:30:04 BoogieIcfgContainer [2020-12-22 08:30:04,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:30:04,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:30:04,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:30:04,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:30:04,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:29:42" (1/3) ... [2020-12-22 08:30:04,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73075ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:30:04, skipping insertion in model container [2020-12-22 08:30:04,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:29:47" (2/3) ... [2020-12-22 08:30:04,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73075ab0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:30:04, skipping insertion in model container [2020-12-22 08:30:04,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:30:04" (3/3) ... [2020-12-22 08:30:04,684 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.BOUNDED-10.pals.c.v+sep-reducer.c [2020-12-22 08:30:04,691 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:30:04,708 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2020-12-22 08:30:04,729 INFO L253 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2020-12-22 08:30:04,793 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:30:04,793 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:30:04,793 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:30:04,793 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:30:04,793 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:30:04,794 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:30:04,794 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:30:04,794 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:30:05,036 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states. [2020-12-22 08:30:05,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:30:05,097 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:30:05,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:30:05,099 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:30:05,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:30:05,109 INFO L82 PathProgramCache]: Analyzing trace with hash -280850909, now seen corresponding path program 1 times [2020-12-22 08:30:05,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:30:05,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26118498] [2020-12-22 08:30:05,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:30:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:30:05,910 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 08:30:05,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26118498] [2020-12-22 08:30:05,912 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:30:05,912 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:30:05,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912867132] [2020-12-22 08:30:05,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:30:05,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:30:05,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:30:05,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:30:05,935 INFO L87 Difference]: Start difference. First operand 6346 states. Second operand 5 states. [2020-12-22 08:30:13,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:30:13,565 INFO L93 Difference]: Finished difference Result 9409 states and 16411 transitions. [2020-12-22 08:30:13,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:30:13,567 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 78 [2020-12-22 08:30:13,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:30:13,653 INFO L225 Difference]: With dead ends: 9409 [2020-12-22 08:30:13,653 INFO L226 Difference]: Without dead ends: 5984 [2020-12-22 08:30:13,670 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 08:30:13,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5984 states. [2020-12-22 08:30:14,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5984 to 5951. [2020-12-22 08:30:14,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5951 states. [2020-12-22 08:30:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5951 states to 5951 states and 7685 transitions. [2020-12-22 08:30:14,029 INFO L78 Accepts]: Start accepts. Automaton has 5951 states and 7685 transitions. Word has length 78 [2020-12-22 08:30:14,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:30:14,030 INFO L481 AbstractCegarLoop]: Abstraction has 5951 states and 7685 transitions. [2020-12-22 08:30:14,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:30:14,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5951 states and 7685 transitions. [2020-12-22 08:30:14,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:30:14,050 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:30:14,051 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:30:14,051 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:30:14,052 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:30:14,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:30:14,056 INFO L82 PathProgramCache]: Analyzing trace with hash -71857781, now seen corresponding path program 1 times [2020-12-22 08:30:14,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:30:14,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727869152] [2020-12-22 08:30:14,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:30:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:30:14,397 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 08:30:14,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727869152] [2020-12-22 08:30:14,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:30:14,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:30:14,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832987130] [2020-12-22 08:30:14,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:30:14,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:30:14,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:30:14,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:30:14,402 INFO L87 Difference]: Start difference. First operand 5951 states and 7685 transitions. Second operand 6 states. [2020-12-22 08:30:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:30:21,973 INFO L93 Difference]: Finished difference Result 13116 states and 17133 transitions. [2020-12-22 08:30:21,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:30:21,975 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-12-22 08:30:21,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:30:22,023 INFO L225 Difference]: With dead ends: 13116 [2020-12-22 08:30:22,024 INFO L226 Difference]: Without dead ends: 9237 [2020-12-22 08:30:22,033 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 08:30:22,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9237 states. [2020-12-22 08:30:22,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9237 to 7960. [2020-12-22 08:30:22,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7960 states. [2020-12-22 08:30:22,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7960 states to 7960 states and 10298 transitions. [2020-12-22 08:30:22,347 INFO L78 Accepts]: Start accepts. Automaton has 7960 states and 10298 transitions. Word has length 79 [2020-12-22 08:30:22,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:30:22,347 INFO L481 AbstractCegarLoop]: Abstraction has 7960 states and 10298 transitions. [2020-12-22 08:30:22,347 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:30:22,347 INFO L276 IsEmpty]: Start isEmpty. Operand 7960 states and 10298 transitions. [2020-12-22 08:30:22,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:30:22,365 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:30:22,365 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:30:22,366 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:30:22,366 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:30:22,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:30:22,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1179108102, now seen corresponding path program 1 times [2020-12-22 08:30:22,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:30:22,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516575157] [2020-12-22 08:30:22,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:30:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:30:22,552 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 08:30:22,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516575157] [2020-12-22 08:30:22,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:30:22,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:30:22,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649571388] [2020-12-22 08:30:22,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:30:22,554 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:30:22,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:30:22,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:30:22,555 INFO L87 Difference]: Start difference. First operand 7960 states and 10298 transitions. Second operand 6 states. [2020-12-22 08:30:28,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:30:28,672 INFO L93 Difference]: Finished difference Result 15092 states and 19540 transitions. [2020-12-22 08:30:28,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:30:28,672 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-12-22 08:30:28,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:30:28,715 INFO L225 Difference]: With dead ends: 15092 [2020-12-22 08:30:28,716 INFO L226 Difference]: Without dead ends: 10298 [2020-12-22 08:30:28,725 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 08:30:28,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10298 states. [2020-12-22 08:30:29,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10298 to 10251. [2020-12-22 08:30:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10251 states. [2020-12-22 08:30:29,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 13346 transitions. [2020-12-22 08:30:29,289 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 13346 transitions. Word has length 80 [2020-12-22 08:30:29,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:30:29,290 INFO L481 AbstractCegarLoop]: Abstraction has 10251 states and 13346 transitions. [2020-12-22 08:30:29,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:30:29,290 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 13346 transitions. [2020-12-22 08:30:29,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:30:29,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:30:29,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:30:29,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:30:29,309 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:30:29,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:30:29,310 INFO L82 PathProgramCache]: Analyzing trace with hash -420988062, now seen corresponding path program 1 times [2020-12-22 08:30:29,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:30:29,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612218878] [2020-12-22 08:30:29,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:30:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:30:29,678 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 08:30:29,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612218878] [2020-12-22 08:30:29,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:30:29,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:30:29,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829541677] [2020-12-22 08:30:29,679 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:30:29,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:30:29,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:30:29,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:30:29,681 INFO L87 Difference]: Start difference. First operand 10251 states and 13346 transitions. Second operand 9 states. [2020-12-22 08:30:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:30:40,578 INFO L93 Difference]: Finished difference Result 11804 states and 15420 transitions. [2020-12-22 08:30:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 08:30:40,579 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2020-12-22 08:30:40,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:30:40,606 INFO L225 Difference]: With dead ends: 11804 [2020-12-22 08:30:40,606 INFO L226 Difference]: Without dead ends: 11798 [2020-12-22 08:30:40,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:30:40,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11798 states. [2020-12-22 08:30:41,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11798 to 10251. [2020-12-22 08:30:41,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10251 states. [2020-12-22 08:30:41,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10251 states to 10251 states and 13345 transitions. [2020-12-22 08:30:41,082 INFO L78 Accepts]: Start accepts. Automaton has 10251 states and 13345 transitions. Word has length 80 [2020-12-22 08:30:41,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:30:41,083 INFO L481 AbstractCegarLoop]: Abstraction has 10251 states and 13345 transitions. [2020-12-22 08:30:41,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:30:41,083 INFO L276 IsEmpty]: Start isEmpty. Operand 10251 states and 13345 transitions. [2020-12-22 08:30:41,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:30:41,101 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:30:41,101 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:30:41,101 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:30:41,101 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:30:41,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:30:41,102 INFO L82 PathProgramCache]: Analyzing trace with hash 581417844, now seen corresponding path program 1 times [2020-12-22 08:30:41,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:30:41,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580134865] [2020-12-22 08:30:41,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:30:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:30:41,300 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 08:30:41,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580134865] [2020-12-22 08:30:41,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:30:41,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:30:41,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680284043] [2020-12-22 08:30:41,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:30:41,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:30:41,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:30:41,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:30:41,302 INFO L87 Difference]: Start difference. First operand 10251 states and 13345 transitions. Second operand 6 states. [2020-12-22 08:30:47,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:30:47,066 INFO L93 Difference]: Finished difference Result 22452 states and 29559 transitions. [2020-12-22 08:30:47,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:30:47,067 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-12-22 08:30:47,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:30:47,104 INFO L225 Difference]: With dead ends: 22452 [2020-12-22 08:30:47,104 INFO L226 Difference]: Without dead ends: 16943 [2020-12-22 08:30:47,116 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 08:30:47,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16943 states. [2020-12-22 08:30:47,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16943 to 16911. [2020-12-22 08:30:47,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16911 states. [2020-12-22 08:30:47,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16911 states to 16911 states and 22253 transitions. [2020-12-22 08:30:47,906 INFO L78 Accepts]: Start accepts. Automaton has 16911 states and 22253 transitions. Word has length 80 [2020-12-22 08:30:47,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:30:47,907 INFO L481 AbstractCegarLoop]: Abstraction has 16911 states and 22253 transitions. [2020-12-22 08:30:47,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:30:47,907 INFO L276 IsEmpty]: Start isEmpty. Operand 16911 states and 22253 transitions. [2020-12-22 08:30:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:30:47,925 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:30:47,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:30:47,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:30:47,926 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:30:47,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:30:47,927 INFO L82 PathProgramCache]: Analyzing trace with hash 886841489, now seen corresponding path program 1 times [2020-12-22 08:30:47,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:30:47,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785372961] [2020-12-22 08:30:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:30:47,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:30:48,081 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 08:30:48,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785372961] [2020-12-22 08:30:48,082 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:30:48,082 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:30:48,082 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205081618] [2020-12-22 08:30:48,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:30:48,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:30:48,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:30:48,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:30:48,084 INFO L87 Difference]: Start difference. First operand 16911 states and 22253 transitions. Second operand 5 states. [2020-12-22 08:30:53,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:30:53,588 INFO L93 Difference]: Finished difference Result 38056 states and 50327 transitions. [2020-12-22 08:30:53,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:30:53,589 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-12-22 08:30:53,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:30:53,638 INFO L225 Difference]: With dead ends: 38056 [2020-12-22 08:30:53,639 INFO L226 Difference]: Without dead ends: 24793 [2020-12-22 08:30:53,660 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 08:30:53,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24793 states. [2020-12-22 08:30:54,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24793 to 24765. [2020-12-22 08:30:54,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24765 states. [2020-12-22 08:30:54,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24765 states to 24765 states and 32311 transitions. [2020-12-22 08:30:54,689 INFO L78 Accepts]: Start accepts. Automaton has 24765 states and 32311 transitions. Word has length 80 [2020-12-22 08:30:54,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:30:54,690 INFO L481 AbstractCegarLoop]: Abstraction has 24765 states and 32311 transitions. [2020-12-22 08:30:54,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:30:54,690 INFO L276 IsEmpty]: Start isEmpty. Operand 24765 states and 32311 transitions. [2020-12-22 08:30:54,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:30:54,709 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:30:54,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:30:54,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:30:54,709 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:30:54,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:30:54,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1834750067, now seen corresponding path program 1 times [2020-12-22 08:30:54,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:30:54,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426292502] [2020-12-22 08:30:54,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:30:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:30:55,564 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 08:30:55,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426292502] [2020-12-22 08:30:55,565 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:30:55,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:30:55,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420878703] [2020-12-22 08:30:55,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:30:55,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:30:55,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:30:55,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:30:55,567 INFO L87 Difference]: Start difference. First operand 24765 states and 32311 transitions. Second operand 12 states. [2020-12-22 08:31:03,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:31:03,563 INFO L93 Difference]: Finished difference Result 59594 states and 84528 transitions. [2020-12-22 08:31:03,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:31:03,564 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 81 [2020-12-22 08:31:03,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:31:03,648 INFO L225 Difference]: With dead ends: 59594 [2020-12-22 08:31:03,648 INFO L226 Difference]: Without dead ends: 59585 [2020-12-22 08:31:03,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:31:03,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59585 states. [2020-12-22 08:31:05,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59585 to 24756. [2020-12-22 08:31:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24756 states. [2020-12-22 08:31:05,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24756 states to 24756 states and 32302 transitions. [2020-12-22 08:31:05,470 INFO L78 Accepts]: Start accepts. Automaton has 24756 states and 32302 transitions. Word has length 81 [2020-12-22 08:31:05,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:31:05,471 INFO L481 AbstractCegarLoop]: Abstraction has 24756 states and 32302 transitions. [2020-12-22 08:31:05,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:31:05,471 INFO L276 IsEmpty]: Start isEmpty. Operand 24756 states and 32302 transitions. [2020-12-22 08:31:05,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:31:05,490 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:31:05,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:31:05,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:31:05,491 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:31:05,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:31:05,491 INFO L82 PathProgramCache]: Analyzing trace with hash -262268880, now seen corresponding path program 1 times [2020-12-22 08:31:05,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:31:05,492 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461723073] [2020-12-22 08:31:05,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:31:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:31:05,845 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 08:31:05,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461723073] [2020-12-22 08:31:05,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:31:05,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 08:31:05,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697360853] [2020-12-22 08:31:05,847 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:31:05,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:31:05,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:31:05,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:31:05,848 INFO L87 Difference]: Start difference. First operand 24756 states and 32302 transitions. Second operand 10 states. [2020-12-22 08:31:26,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:31:26,472 INFO L93 Difference]: Finished difference Result 81459 states and 115408 transitions. [2020-12-22 08:31:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-22 08:31:26,473 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 81 [2020-12-22 08:31:26,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:31:26,568 INFO L225 Difference]: With dead ends: 81459 [2020-12-22 08:31:26,569 INFO L226 Difference]: Without dead ends: 74408 [2020-12-22 08:31:26,591 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=266, Invalid=790, Unknown=0, NotChecked=0, Total=1056 [2020-12-22 08:31:26,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74408 states. [2020-12-22 08:31:28,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74408 to 24763. [2020-12-22 08:31:28,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24763 states. [2020-12-22 08:31:28,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24763 states to 24763 states and 32309 transitions. [2020-12-22 08:31:28,788 INFO L78 Accepts]: Start accepts. Automaton has 24763 states and 32309 transitions. Word has length 81 [2020-12-22 08:31:28,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:31:28,788 INFO L481 AbstractCegarLoop]: Abstraction has 24763 states and 32309 transitions. [2020-12-22 08:31:28,789 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:31:28,789 INFO L276 IsEmpty]: Start isEmpty. Operand 24763 states and 32309 transitions. [2020-12-22 08:31:28,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:31:28,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:31:28,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:31:28,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:31:28,801 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:31:28,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:31:28,801 INFO L82 PathProgramCache]: Analyzing trace with hash -237576773, now seen corresponding path program 1 times [2020-12-22 08:31:28,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:31:28,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17739789] [2020-12-22 08:31:28,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:31:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:31:28,906 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 08:31:28,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17739789] [2020-12-22 08:31:28,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:31:28,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:31:28,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198293655] [2020-12-22 08:31:28,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:31:28,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:31:28,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:31:28,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:31:28,909 INFO L87 Difference]: Start difference. First operand 24763 states and 32309 transitions. Second operand 3 states. [2020-12-22 08:31:32,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:31:32,175 INFO L93 Difference]: Finished difference Result 50675 states and 66803 transitions. [2020-12-22 08:31:32,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:31:32,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-12-22 08:31:32,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:31:32,215 INFO L225 Difference]: With dead ends: 50675 [2020-12-22 08:31:32,215 INFO L226 Difference]: Without dead ends: 31086 [2020-12-22 08:31:32,249 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 08:31:32,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31086 states. [2020-12-22 08:31:34,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31086 to 31057. [2020-12-22 08:31:34,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31057 states. [2020-12-22 08:31:34,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31057 states to 31057 states and 40490 transitions. [2020-12-22 08:31:34,723 INFO L78 Accepts]: Start accepts. Automaton has 31057 states and 40490 transitions. Word has length 82 [2020-12-22 08:31:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:31:34,723 INFO L481 AbstractCegarLoop]: Abstraction has 31057 states and 40490 transitions. [2020-12-22 08:31:34,724 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:31:34,724 INFO L276 IsEmpty]: Start isEmpty. Operand 31057 states and 40490 transitions. [2020-12-22 08:31:34,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:31:34,736 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:31:34,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:31:34,737 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:31:34,737 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:31:34,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:31:34,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1592112302, now seen corresponding path program 1 times [2020-12-22 08:31:34,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:31:34,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192962265] [2020-12-22 08:31:34,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:31:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:31:35,212 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 08:31:35,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192962265] [2020-12-22 08:31:35,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:31:35,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:31:35,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099973105] [2020-12-22 08:31:35,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:31:35,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:31:35,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:31:35,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:31:35,215 INFO L87 Difference]: Start difference. First operand 31057 states and 40490 transitions. Second operand 12 states. [2020-12-22 08:31:50,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:31:50,057 INFO L93 Difference]: Finished difference Result 92739 states and 132828 transitions. [2020-12-22 08:31:50,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:31:50,058 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-12-22 08:31:50,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:31:50,142 INFO L225 Difference]: With dead ends: 92739 [2020-12-22 08:31:50,143 INFO L226 Difference]: Without dead ends: 82451 [2020-12-22 08:31:50,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:31:50,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82451 states. [2020-12-22 08:31:53,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82451 to 30977. [2020-12-22 08:31:53,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30977 states. [2020-12-22 08:31:53,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30977 states to 30977 states and 40382 transitions. [2020-12-22 08:31:53,316 INFO L78 Accepts]: Start accepts. Automaton has 30977 states and 40382 transitions. Word has length 82 [2020-12-22 08:31:53,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:31:53,316 INFO L481 AbstractCegarLoop]: Abstraction has 30977 states and 40382 transitions. [2020-12-22 08:31:53,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:31:53,316 INFO L276 IsEmpty]: Start isEmpty. Operand 30977 states and 40382 transitions. [2020-12-22 08:31:53,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:31:53,327 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:31:53,327 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:31:53,327 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:31:53,327 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:31:53,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:31:53,328 INFO L82 PathProgramCache]: Analyzing trace with hash 369377035, now seen corresponding path program 1 times [2020-12-22 08:31:53,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:31:53,328 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620048166] [2020-12-22 08:31:53,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:31:53,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:31:53,573 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 08:31:53,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620048166] [2020-12-22 08:31:53,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:31:53,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:31:53,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211498709] [2020-12-22 08:31:53,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:31:53,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:31:53,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:31:53,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:31:53,576 INFO L87 Difference]: Start difference. First operand 30977 states and 40382 transitions. Second operand 9 states. [2020-12-22 08:32:08,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:32:08,207 INFO L93 Difference]: Finished difference Result 44660 states and 60800 transitions. [2020-12-22 08:32:08,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:32:08,208 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2020-12-22 08:32:08,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:32:08,252 INFO L225 Difference]: With dead ends: 44660 [2020-12-22 08:32:08,253 INFO L226 Difference]: Without dead ends: 44651 [2020-12-22 08:32:08,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:32:08,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44651 states. [2020-12-22 08:32:11,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44651 to 30977. [2020-12-22 08:32:11,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30977 states. [2020-12-22 08:32:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30977 states to 30977 states and 40381 transitions. [2020-12-22 08:32:11,052 INFO L78 Accepts]: Start accepts. Automaton has 30977 states and 40381 transitions. Word has length 83 [2020-12-22 08:32:11,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:32:11,053 INFO L481 AbstractCegarLoop]: Abstraction has 30977 states and 40381 transitions. [2020-12-22 08:32:11,053 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:32:11,053 INFO L276 IsEmpty]: Start isEmpty. Operand 30977 states and 40381 transitions. [2020-12-22 08:32:11,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-12-22 08:32:11,064 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:32:11,064 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:32:11,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:32:11,065 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:32:11,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:32:11,065 INFO L82 PathProgramCache]: Analyzing trace with hash 505173845, now seen corresponding path program 1 times [2020-12-22 08:32:11,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:32:11,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211086114] [2020-12-22 08:32:11,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:32:11,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:32:11,378 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 08:32:11,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211086114] [2020-12-22 08:32:11,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:32:11,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 08:32:11,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545633801] [2020-12-22 08:32:11,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:32:11,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:32:11,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:32:11,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:32:11,381 INFO L87 Difference]: Start difference. First operand 30977 states and 40381 transitions. Second operand 10 states. [2020-12-22 08:32:45,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:32:45,043 INFO L93 Difference]: Finished difference Result 145012 states and 209360 transitions. [2020-12-22 08:32:45,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:32:45,044 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2020-12-22 08:32:45,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:32:45,201 INFO L225 Difference]: With dead ends: 145012 [2020-12-22 08:32:45,201 INFO L226 Difference]: Without dead ends: 134770 [2020-12-22 08:32:45,426 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=369, Invalid=1113, Unknown=0, NotChecked=0, Total=1482 [2020-12-22 08:32:45,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134770 states. [2020-12-22 08:32:49,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134770 to 30947. [2020-12-22 08:32:49,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30947 states. [2020-12-22 08:32:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30947 states to 30947 states and 40346 transitions. [2020-12-22 08:32:49,677 INFO L78 Accepts]: Start accepts. Automaton has 30947 states and 40346 transitions. Word has length 83 [2020-12-22 08:32:49,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:32:49,677 INFO L481 AbstractCegarLoop]: Abstraction has 30947 states and 40346 transitions. [2020-12-22 08:32:49,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:32:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 30947 states and 40346 transitions. [2020-12-22 08:32:49,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 08:32:49,688 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:32:49,689 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:32:49,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:32:49,689 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.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_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 08:32:49,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:32:49,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1309648752, now seen corresponding path program 1 times [2020-12-22 08:32:49,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:32:49,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804273753] [2020-12-22 08:32:49,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:32:49,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:32:50,333 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 08:32:50,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804273753] [2020-12-22 08:32:50,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:32:50,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:32:50,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922284339] [2020-12-22 08:32:50,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:32:50,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:32:50,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:32:50,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:32:50,336 INFO L87 Difference]: Start difference. First operand 30947 states and 40346 transitions. Second operand 12 states. [2020-12-22 08:32:51,025 WARN L197 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-12-22 08:32:51,375 WARN L197 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2020-12-22 08:32:52,104 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-12-22 08:32:52,642 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-12-22 08:32:53,560 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2020-12-22 08:33:22,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:33:22,105 INFO L93 Difference]: Finished difference Result 139585 states and 203105 transitions. [2020-12-22 08:33:22,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-12-22 08:33:22,106 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 84 [2020-12-22 08:33:22,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:33:22,447 INFO L225 Difference]: With dead ends: 139585 [2020-12-22 08:33:22,448 INFO L226 Difference]: Without dead ends: 139573 [2020-12-22 08:33:22,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:33:22,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139573 states.