/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:21:42,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:21:42,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:21:42,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:21:42,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:21:42,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:21:42,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:21:42,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:21:42,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:21:42,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:21:42,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:21:42,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:21:42,726 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:21:42,727 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:21:42,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:21:42,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:21:42,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:21:42,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:21:42,753 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:21:42,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:21:42,761 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:21:42,763 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:21:42,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:21:42,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:21:42,782 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:21:42,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:21:42,783 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:21:42,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:21:42,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:21:42,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:21:42,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:21:42,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:21:42,795 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:21:42,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:21:42,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:21:42,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:21:42,802 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:21:42,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:21:42,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:21:42,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:21:42,806 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:21:42,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:21:42,868 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:21:42,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:21:42,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:21:42,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:21:42,872 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:21:42,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:21:42,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:21:42,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:21:42,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:21:42,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:21:42,879 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:21:42,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:21:42,879 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:21:42,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:21:42,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:21:42,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:21:42,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:21:42,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:21:42,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:21:42,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:21:42,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:21:42,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:21:42,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:21:42,881 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:21:42,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:21:42,882 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:21:43,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:21:43,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:21:43,291 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:21:43,293 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:21:43,294 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:21:43,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2020-12-22 08:21:43,393 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e77fe36/c03745eca47541e2b34475acb51a1c80/FLAG3856caedb [2020-12-22 08:21:44,673 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:21:44,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2020-12-22 08:21:44,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e77fe36/c03745eca47541e2b34475acb51a1c80/FLAG3856caedb [2020-12-22 08:21:44,974 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/34e77fe36/c03745eca47541e2b34475acb51a1c80 [2020-12-22 08:21:44,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:21:44,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:21:44,985 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:21:44,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:21:44,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:21:44,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:21:44" (1/1) ... [2020-12-22 08:21:44,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e327388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:44, skipping insertion in model container [2020-12-22 08:21:44,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:21:44" (1/1) ... [2020-12-22 08:21:45,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:21:45,355 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:21:45,949 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32266,32279] [2020-12-22 08:21:45,988 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39344,39357] [2020-12-22 08:21:46,157 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66545,66558] [2020-12-22 08:21:46,219 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75628,75641] [2020-12-22 08:21:46,255 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82339,82352] [2020-12-22 08:21:46,316 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94303,94316] [2020-12-22 08:21:46,344 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103276,103289] [2020-12-22 08:21:46,403 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111341,111354] [2020-12-22 08:21:46,564 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[150033,150046] [2020-12-22 08:21:46,578 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153583,153596] [2020-12-22 08:21:46,604 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162610,162623] [2020-12-22 08:21:46,631 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169283,169296] [2020-12-22 08:21:46,713 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[195097,195110] [2020-12-22 08:21:46,795 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[227093,227106] [2020-12-22 08:21:46,877 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.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[257421,257434] [2020-12-22 08:21:46,949 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[287873,287886] [2020-12-22 08:21:47,029 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[321310,321323] [2020-12-22 08:21:47,307 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:21:47,347 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:21:47,487 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[32266,32279] [2020-12-22 08:21:47,503 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[39344,39357] [2020-12-22 08:21:47,564 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[66545,66558] [2020-12-22 08:21:47,585 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[75628,75641] [2020-12-22 08:21:47,603 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[82339,82352] [2020-12-22 08:21:47,631 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[94303,94316] [2020-12-22 08:21:47,655 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[103276,103289] [2020-12-22 08:21:47,675 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[111341,111354] [2020-12-22 08:21:47,765 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[150033,150046] [2020-12-22 08:21:47,776 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[153583,153596] [2020-12-22 08:21:47,852 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[162610,162623] [2020-12-22 08:21:47,868 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[169283,169296] [2020-12-22 08:21:47,922 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[195097,195110] [2020-12-22 08:21:47,990 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[227093,227106] [2020-12-22 08:21:48,063 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[257421,257434] [2020-12-22 08:21:48,137 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[287873,287886] [2020-12-22 08:21:48,218 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c[321310,321323] [2020-12-22 08:21:48,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:21:48,581 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:21:48,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48 WrapperNode [2020-12-22 08:21:48,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:21:48,586 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:21:48,586 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:21:48,586 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:21:48,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (1/1) ... [2020-12-22 08:21:48,693 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (1/1) ... [2020-12-22 08:21:49,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:21:49,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:21:49,035 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:21:49,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:21:49,045 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (1/1) ... [2020-12-22 08:21:49,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (1/1) ... [2020-12-22 08:21:49,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (1/1) ... [2020-12-22 08:21:49,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (1/1) ... [2020-12-22 08:21:49,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (1/1) ... [2020-12-22 08:21:49,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (1/1) ... [2020-12-22 08:21:49,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (1/1) ... [2020-12-22 08:21:49,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:21:49,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:21:49,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:21:49,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:21:49,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (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 08:21:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:21:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:21:49,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:21:49,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:21:59,642 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:21:59,643 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:21:59,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:21:59 BoogieIcfgContainer [2020-12-22 08:21:59,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:21:59,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:21:59,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:21:59,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:21:59,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:21:44" (1/3) ... [2020-12-22 08:21:59,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ec653f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:21:59, skipping insertion in model container [2020-12-22 08:21:59,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:21:48" (2/3) ... [2020-12-22 08:21:59,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ec653f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:21:59, skipping insertion in model container [2020-12-22 08:21:59,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:21:59" (3/3) ... [2020-12-22 08:21:59,661 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.1.ufo.BOUNDED-8.pals.c.v+sep-reducer.c [2020-12-22 08:21:59,668 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:21:59,676 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2020-12-22 08:21:59,697 INFO L253 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2020-12-22 08:21:59,743 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:21:59,744 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:21:59,744 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:21:59,744 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:21:59,744 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:21:59,744 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:21:59,745 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:21:59,745 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:21:59,813 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states. [2020-12-22 08:21:59,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-12-22 08:21:59,862 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:21:59,863 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:21:59,864 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:21:59,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:21:59,872 INFO L82 PathProgramCache]: Analyzing trace with hash -100733711, now seen corresponding path program 1 times [2020-12-22 08:21:59,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:21:59,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520184069] [2020-12-22 08:21:59,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:22:00,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:22:00,551 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 08:22:00,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520184069] [2020-12-22 08:22:00,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:22:00,553 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:22:00,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703770462] [2020-12-22 08:22:00,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:22:00,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:22:00,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:22:00,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:22:00,582 INFO L87 Difference]: Start difference. First operand 3732 states. Second operand 5 states. [2020-12-22 08:22:06,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:22:06,602 INFO L93 Difference]: Finished difference Result 7047 states and 12225 transitions. [2020-12-22 08:22:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:22:06,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-12-22 08:22:06,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:22:06,669 INFO L225 Difference]: With dead ends: 7047 [2020-12-22 08:22:06,670 INFO L226 Difference]: Without dead ends: 4526 [2020-12-22 08:22:06,687 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 08:22:06,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4526 states. [2020-12-22 08:22:07,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4526 to 4501. [2020-12-22 08:22:07,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4501 states. [2020-12-22 08:22:07,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4501 states to 4501 states and 5830 transitions. [2020-12-22 08:22:07,100 INFO L78 Accepts]: Start accepts. Automaton has 4501 states and 5830 transitions. Word has length 65 [2020-12-22 08:22:07,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:22:07,102 INFO L481 AbstractCegarLoop]: Abstraction has 4501 states and 5830 transitions. [2020-12-22 08:22:07,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:22:07,102 INFO L276 IsEmpty]: Start isEmpty. Operand 4501 states and 5830 transitions. [2020-12-22 08:22:07,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:22:07,118 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:22:07,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:22:07,119 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:22:07,120 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:22:07,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:22:07,122 INFO L82 PathProgramCache]: Analyzing trace with hash 100373679, now seen corresponding path program 1 times [2020-12-22 08:22:07,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:22:07,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484174587] [2020-12-22 08:22:07,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:22:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:22:07,460 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 08:22:07,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484174587] [2020-12-22 08:22:07,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:22:07,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:22:07,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743847029] [2020-12-22 08:22:07,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:22:07,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:22:07,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:22:07,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:22:07,465 INFO L87 Difference]: Start difference. First operand 4501 states and 5830 transitions. Second operand 6 states. [2020-12-22 08:22:11,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:22:11,640 INFO L93 Difference]: Finished difference Result 9195 states and 11954 transitions. [2020-12-22 08:22:11,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:22:11,641 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-12-22 08:22:11,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:22:11,673 INFO L225 Difference]: With dead ends: 9195 [2020-12-22 08:22:11,673 INFO L226 Difference]: Without dead ends: 6416 [2020-12-22 08:22:11,680 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 08:22:11,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6416 states. [2020-12-22 08:22:11,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6416 to 6371. [2020-12-22 08:22:11,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6371 states. [2020-12-22 08:22:11,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 8320 transitions. [2020-12-22 08:22:11,967 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 8320 transitions. Word has length 66 [2020-12-22 08:22:11,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:22:11,967 INFO L481 AbstractCegarLoop]: Abstraction has 6371 states and 8320 transitions. [2020-12-22 08:22:11,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:22:11,968 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 8320 transitions. [2020-12-22 08:22:11,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 08:22:11,978 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:22:11,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:22:11,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:22:11,979 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:22:11,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:22:11,980 INFO L82 PathProgramCache]: Analyzing trace with hash 2043501231, now seen corresponding path program 1 times [2020-12-22 08:22:11,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:22:11,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416522161] [2020-12-22 08:22:11,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:22:12,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:22:12,131 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 08:22:12,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416522161] [2020-12-22 08:22:12,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:22:12,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:22:12,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736406753] [2020-12-22 08:22:12,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:22:12,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:22:12,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:22:12,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:22:12,134 INFO L87 Difference]: Start difference. First operand 6371 states and 8320 transitions. Second operand 6 states. [2020-12-22 08:22:15,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:22:15,884 INFO L93 Difference]: Finished difference Result 14637 states and 19183 transitions. [2020-12-22 08:22:15,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:22:15,885 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-12-22 08:22:15,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:22:15,936 INFO L225 Difference]: With dead ends: 14637 [2020-12-22 08:22:15,936 INFO L226 Difference]: Without dead ends: 9755 [2020-12-22 08:22:15,947 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 08:22:15,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9755 states. [2020-12-22 08:22:16,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9755 to 9723. [2020-12-22 08:22:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9723 states. [2020-12-22 08:22:16,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9723 states to 9723 states and 12753 transitions. [2020-12-22 08:22:16,372 INFO L78 Accepts]: Start accepts. Automaton has 9723 states and 12753 transitions. Word has length 66 [2020-12-22 08:22:16,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:22:16,375 INFO L481 AbstractCegarLoop]: Abstraction has 9723 states and 12753 transitions. [2020-12-22 08:22:16,376 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:22:16,376 INFO L276 IsEmpty]: Start isEmpty. Operand 9723 states and 12753 transitions. [2020-12-22 08:22:16,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 08:22:16,388 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:22:16,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:22:16,389 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:22:16,389 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:22:16,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:22:16,390 INFO L82 PathProgramCache]: Analyzing trace with hash 280890183, now seen corresponding path program 1 times [2020-12-22 08:22:16,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:22:16,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934575168] [2020-12-22 08:22:16,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:22:16,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:22:16,622 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 08:22:16,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934575168] [2020-12-22 08:22:16,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:22:16,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:22:16,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104393154] [2020-12-22 08:22:16,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:22:16,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:22:16,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:22:16,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:22:16,628 INFO L87 Difference]: Start difference. First operand 9723 states and 12753 transitions. Second operand 6 states. [2020-12-22 08:22:20,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:22:20,028 INFO L93 Difference]: Finished difference Result 22506 states and 30037 transitions. [2020-12-22 08:22:20,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:22:20,029 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-12-22 08:22:20,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:22:20,094 INFO L225 Difference]: With dead ends: 22506 [2020-12-22 08:22:20,094 INFO L226 Difference]: Without dead ends: 16118 [2020-12-22 08:22:20,111 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 08:22:20,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16118 states. [2020-12-22 08:22:20,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16118 to 16068. [2020-12-22 08:22:20,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16068 states. [2020-12-22 08:22:20,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16068 states to 16068 states and 21473 transitions. [2020-12-22 08:22:20,797 INFO L78 Accepts]: Start accepts. Automaton has 16068 states and 21473 transitions. Word has length 67 [2020-12-22 08:22:20,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:22:20,797 INFO L481 AbstractCegarLoop]: Abstraction has 16068 states and 21473 transitions. [2020-12-22 08:22:20,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:22:20,798 INFO L276 IsEmpty]: Start isEmpty. Operand 16068 states and 21473 transitions. [2020-12-22 08:22:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:22:20,808 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:22:20,809 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:22:20,809 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:22:20,809 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:22:20,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:22:20,810 INFO L82 PathProgramCache]: Analyzing trace with hash 533009189, now seen corresponding path program 1 times [2020-12-22 08:22:20,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:22:20,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803133830] [2020-12-22 08:22:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:22:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:22:21,112 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 08:22:21,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803133830] [2020-12-22 08:22:21,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:22:21,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:22:21,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171191090] [2020-12-22 08:22:21,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:22:21,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:22:21,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:22:21,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:22:21,116 INFO L87 Difference]: Start difference. First operand 16068 states and 21473 transitions. Second operand 8 states. [2020-12-22 08:22:27,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:22:27,722 INFO L93 Difference]: Finished difference Result 40852 states and 59164 transitions. [2020-12-22 08:22:27,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:22:27,728 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 68 [2020-12-22 08:22:27,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:22:27,834 INFO L225 Difference]: With dead ends: 40852 [2020-12-22 08:22:27,834 INFO L226 Difference]: Without dead ends: 36376 [2020-12-22 08:22:27,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2020-12-22 08:22:27,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36376 states. [2020-12-22 08:22:29,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36376 to 15795. [2020-12-22 08:22:29,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15795 states. [2020-12-22 08:22:29,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15795 states to 15795 states and 21116 transitions. [2020-12-22 08:22:29,056 INFO L78 Accepts]: Start accepts. Automaton has 15795 states and 21116 transitions. Word has length 68 [2020-12-22 08:22:29,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:22:29,057 INFO L481 AbstractCegarLoop]: Abstraction has 15795 states and 21116 transitions. [2020-12-22 08:22:29,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:22:29,057 INFO L276 IsEmpty]: Start isEmpty. Operand 15795 states and 21116 transitions. [2020-12-22 08:22:29,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-22 08:22:29,066 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:22:29,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:22:29,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:22:29,067 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:22:29,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:22:29,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1802238869, now seen corresponding path program 1 times [2020-12-22 08:22:29,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:22:29,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683687153] [2020-12-22 08:22:29,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:22:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:22:29,269 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 08:22:29,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683687153] [2020-12-22 08:22:29,270 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:22:29,270 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:22:29,270 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956837161] [2020-12-22 08:22:29,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:22:29,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:22:29,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:22:29,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:22:29,272 INFO L87 Difference]: Start difference. First operand 15795 states and 21116 transitions. Second operand 9 states. [2020-12-22 08:22:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:22:40,304 INFO L93 Difference]: Finished difference Result 47828 states and 67562 transitions. [2020-12-22 08:22:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:22:40,305 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 68 [2020-12-22 08:22:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:22:40,393 INFO L225 Difference]: With dead ends: 47828 [2020-12-22 08:22:40,393 INFO L226 Difference]: Without dead ends: 43575 [2020-12-22 08:22:40,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:22:40,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43575 states. [2020-12-22 08:22:41,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43575 to 15706. [2020-12-22 08:22:41,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15706 states. [2020-12-22 08:22:41,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15706 states to 15706 states and 20995 transitions. [2020-12-22 08:22:41,587 INFO L78 Accepts]: Start accepts. Automaton has 15706 states and 20995 transitions. Word has length 68 [2020-12-22 08:22:41,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:22:41,588 INFO L481 AbstractCegarLoop]: Abstraction has 15706 states and 20995 transitions. [2020-12-22 08:22:41,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:22:41,588 INFO L276 IsEmpty]: Start isEmpty. Operand 15706 states and 20995 transitions. [2020-12-22 08:22:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:22:41,596 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:22:41,596 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:22:41,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:22:41,597 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:22:41,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:22:41,598 INFO L82 PathProgramCache]: Analyzing trace with hash 2141707383, now seen corresponding path program 1 times [2020-12-22 08:22:41,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:22:41,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309587114] [2020-12-22 08:22:41,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:22:41,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:22:42,222 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 08:22:42,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309587114] [2020-12-22 08:22:42,223 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:22:42,223 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:22:42,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546324747] [2020-12-22 08:22:42,224 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:22:42,224 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:22:42,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:22:42,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:22:42,225 INFO L87 Difference]: Start difference. First operand 15706 states and 20995 transitions. Second operand 12 states. [2020-12-22 08:22:42,818 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-12-22 08:22:43,112 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 36 [2020-12-22 08:22:48,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:22:48,785 INFO L93 Difference]: Finished difference Result 36753 states and 52831 transitions. [2020-12-22 08:22:48,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:22:48,785 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 69 [2020-12-22 08:22:48,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:22:48,832 INFO L225 Difference]: With dead ends: 36753 [2020-12-22 08:22:48,833 INFO L226 Difference]: Without dead ends: 36749 [2020-12-22 08:22:48,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=153, Invalid=447, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:22:48,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36749 states. [2020-12-22 08:22:49,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36749 to 15702. [2020-12-22 08:22:49,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15702 states. [2020-12-22 08:22:49,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15702 states to 15702 states and 20991 transitions. [2020-12-22 08:22:49,884 INFO L78 Accepts]: Start accepts. Automaton has 15702 states and 20991 transitions. Word has length 69 [2020-12-22 08:22:49,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:22:49,885 INFO L481 AbstractCegarLoop]: Abstraction has 15702 states and 20991 transitions. [2020-12-22 08:22:49,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:22:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand 15702 states and 20991 transitions. [2020-12-22 08:22:49,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:22:49,894 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:22:49,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:22:49,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:22:49,895 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:22:49,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:22:49,896 INFO L82 PathProgramCache]: Analyzing trace with hash -50233035, now seen corresponding path program 1 times [2020-12-22 08:22:49,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:22:49,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944277101] [2020-12-22 08:22:49,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:22:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:22:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:22:50,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944277101] [2020-12-22 08:22:50,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:22:50,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:22:50,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364898378] [2020-12-22 08:22:50,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:22:50,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:22:50,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:22:50,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:22:50,116 INFO L87 Difference]: Start difference. First operand 15702 states and 20991 transitions. Second operand 9 states. [2020-12-22 08:22:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:22:57,932 INFO L93 Difference]: Finished difference Result 21310 states and 29434 transitions. [2020-12-22 08:22:57,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:22:57,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-12-22 08:22:57,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:22:57,962 INFO L225 Difference]: With dead ends: 21310 [2020-12-22 08:22:57,963 INFO L226 Difference]: Without dead ends: 21304 [2020-12-22 08:22:57,968 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:22:57,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21304 states. [2020-12-22 08:22:58,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21304 to 15702. [2020-12-22 08:22:58,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15702 states. [2020-12-22 08:22:58,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15702 states to 15702 states and 20990 transitions. [2020-12-22 08:22:58,963 INFO L78 Accepts]: Start accepts. Automaton has 15702 states and 20990 transitions. Word has length 69 [2020-12-22 08:22:58,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:22:58,964 INFO L481 AbstractCegarLoop]: Abstraction has 15702 states and 20990 transitions. [2020-12-22 08:22:58,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:22:58,964 INFO L276 IsEmpty]: Start isEmpty. Operand 15702 states and 20990 transitions. [2020-12-22 08:22:58,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:22:58,974 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:22:58,974 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:22:58,974 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:22:58,974 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:22:58,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:22:58,975 INFO L82 PathProgramCache]: Analyzing trace with hash 487125926, now seen corresponding path program 1 times [2020-12-22 08:22:58,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:22:58,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407904423] [2020-12-22 08:22:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:22:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:22:59,315 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 08:22:59,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407904423] [2020-12-22 08:22:59,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:22:59,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:22:59,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560031674] [2020-12-22 08:22:59,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:22:59,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:22:59,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:22:59,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:22:59,318 INFO L87 Difference]: Start difference. First operand 15702 states and 20990 transitions. Second operand 9 states. [2020-12-22 08:23:07,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:23:07,602 INFO L93 Difference]: Finished difference Result 21604 states and 29764 transitions. [2020-12-22 08:23:07,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:23:07,603 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2020-12-22 08:23:07,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:23:07,628 INFO L225 Difference]: With dead ends: 21604 [2020-12-22 08:23:07,629 INFO L226 Difference]: Without dead ends: 21595 [2020-12-22 08:23:07,636 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:23:07,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21595 states. [2020-12-22 08:23:08,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21595 to 15702. [2020-12-22 08:23:08,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15702 states. [2020-12-22 08:23:08,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15702 states to 15702 states and 20989 transitions. [2020-12-22 08:23:08,814 INFO L78 Accepts]: Start accepts. Automaton has 15702 states and 20989 transitions. Word has length 69 [2020-12-22 08:23:08,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:23:08,815 INFO L481 AbstractCegarLoop]: Abstraction has 15702 states and 20989 transitions. [2020-12-22 08:23:08,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:23:08,815 INFO L276 IsEmpty]: Start isEmpty. Operand 15702 states and 20989 transitions. [2020-12-22 08:23:08,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 08:23:08,822 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:23:08,822 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:23:08,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:23:08,823 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:23:08,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:23:08,823 INFO L82 PathProgramCache]: Analyzing trace with hash -465119641, now seen corresponding path program 1 times [2020-12-22 08:23:08,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:23:08,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923626655] [2020-12-22 08:23:08,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:23:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:23:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:23:09,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923626655] [2020-12-22 08:23:09,815 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:23:09,815 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-12-22 08:23:09,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020161680] [2020-12-22 08:23:09,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-12-22 08:23:09,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:23:09,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-12-22 08:23:09,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2020-12-22 08:23:09,817 INFO L87 Difference]: Start difference. First operand 15702 states and 20989 transitions. Second operand 17 states. [2020-12-22 08:23:10,042 WARN L197 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-12-22 08:23:10,466 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2020-12-22 08:23:10,671 WARN L197 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-22 08:23:10,887 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-22 08:23:11,218 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-12-22 08:23:11,646 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2020-12-22 08:23:12,321 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-12-22 08:23:13,362 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-22 08:23:13,705 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2020-12-22 08:23:14,192 WARN L197 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2020-12-22 08:23:14,596 WARN L197 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-12-22 08:23:15,410 WARN L197 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2020-12-22 08:23:15,818 WARN L197 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2020-12-22 08:23:17,611 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2020-12-22 08:23:18,546 WARN L197 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2020-12-22 08:23:19,272 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-12-22 08:23:19,827 WARN L197 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-12-22 08:23:24,216 WARN L197 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-12-22 08:23:25,442 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-12-22 08:23:26,845 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2020-12-22 08:23:27,134 WARN L197 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-12-22 08:23:28,356 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2020-12-22 08:23:29,072 WARN L197 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-12-22 08:23:30,664 WARN L197 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2020-12-22 08:23:32,313 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2020-12-22 08:23:32,654 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2020-12-22 08:23:33,582 WARN L197 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-22 08:23:33,838 WARN L197 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2020-12-22 08:23:34,122 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-12-22 08:23:34,663 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-22 08:23:35,180 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-22 08:23:35,723 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-22 08:23:36,004 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2020-12-22 08:23:37,166 WARN L197 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2020-12-22 08:23:37,588 WARN L197 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2020-12-22 08:23:38,385 WARN L197 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-22 08:23:38,871 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-12-22 08:23:39,255 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-22 08:23:39,726 WARN L197 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-22 08:23:40,140 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-12-22 08:23:40,344 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-12-22 08:23:40,634 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2020-12-22 08:23:41,159 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-22 08:23:41,488 WARN L197 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-22 08:23:41,965 WARN L197 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2020-12-22 08:23:42,451 WARN L197 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-22 08:23:42,974 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-12-22 08:23:43,268 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-12-22 08:23:43,807 WARN L197 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:23:45,419 WARN L197 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-12-22 08:23:47,088 WARN L197 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2020-12-22 08:23:48,649 WARN L197 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-12-22 08:23:49,344 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-22 08:23:49,924 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:23:50,668 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-22 08:23:51,357 WARN L197 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-12-22 08:23:51,731 WARN L197 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-22 08:23:52,330 WARN L197 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-22 08:23:53,143 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-12-22 08:23:53,626 WARN L197 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-22 08:23:54,135 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-22 08:23:54,660 WARN L197 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-22 08:23:55,215 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-12-22 08:23:55,531 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-22 08:23:56,062 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-22 08:23:56,436 WARN L197 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-22 08:23:57,021 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-22 08:23:57,624 WARN L197 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2020-12-22 08:23:58,448 WARN L197 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2020-12-22 08:24:00,153 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-12-22 08:24:02,701 WARN L197 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-12-22 08:24:03,741 WARN L197 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-12-22 08:24:04,146 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-12-22 08:24:04,730 WARN L197 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-12-22 08:24:05,387 WARN L197 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-22 08:24:05,783 WARN L197 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-12-22 08:24:06,410 WARN L197 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-12-22 08:24:09,193 WARN L197 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2020-12-22 08:24:09,871 WARN L197 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-12-22 08:24:10,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:10,348 INFO L93 Difference]: Finished difference Result 122789 states and 183578 transitions. [2020-12-22 08:24:10,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2020-12-22 08:24:10,349 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 69 [2020-12-22 08:24:10,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:10,664 INFO L225 Difference]: With dead ends: 122789 [2020-12-22 08:24:10,664 INFO L226 Difference]: Without dead ends: 122785 [2020-12-22 08:24:10,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3689 ImplicationChecksByTransitivity, 25.5s TimeCoverageRelationStatistics Valid=2026, Invalid=8276, Unknown=0, NotChecked=0, Total=10302 [2020-12-22 08:24:10,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122785 states. [2020-12-22 08:24:13,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122785 to 15698. [2020-12-22 08:24:13,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15698 states. [2020-12-22 08:24:13,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15698 states to 15698 states and 20985 transitions. [2020-12-22 08:24:13,088 INFO L78 Accepts]: Start accepts. Automaton has 15698 states and 20985 transitions. Word has length 69 [2020-12-22 08:24:13,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:13,088 INFO L481 AbstractCegarLoop]: Abstraction has 15698 states and 20985 transitions. [2020-12-22 08:24:13,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-12-22 08:24:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 15698 states and 20985 transitions. [2020-12-22 08:24:13,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 08:24:13,096 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:13,096 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] [2020-12-22 08:24:13,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:24:13,097 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:13,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:13,097 INFO L82 PathProgramCache]: Analyzing trace with hash 215127807, now seen corresponding path program 1 times [2020-12-22 08:24:13,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:13,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030750280] [2020-12-22 08:24:13,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:13,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:24:13,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030750280] [2020-12-22 08:24:13,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:13,432 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:24:13,432 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481890014] [2020-12-22 08:24:13,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:24:13,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:13,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:24:13,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:24:13,434 INFO L87 Difference]: Start difference. First operand 15698 states and 20985 transitions. Second operand 11 states. [2020-12-22 08:24:17,494 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-12-22 08:24:23,577 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-12-22 08:24:30,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:30,076 INFO L93 Difference]: Finished difference Result 55015 states and 78754 transitions. [2020-12-22 08:24:30,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:24:30,077 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 70 [2020-12-22 08:24:30,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:30,130 INFO L225 Difference]: With dead ends: 55015 [2020-12-22 08:24:30,130 INFO L226 Difference]: Without dead ends: 50514 [2020-12-22 08:24:30,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=149, Invalid=357, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:24:30,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50514 states. [2020-12-22 08:24:32,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50514 to 15357. [2020-12-22 08:24:32,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15357 states. [2020-12-22 08:24:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15357 states to 15357 states and 20509 transitions. [2020-12-22 08:24:32,440 INFO L78 Accepts]: Start accepts. Automaton has 15357 states and 20509 transitions. Word has length 70 [2020-12-22 08:24:32,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:32,440 INFO L481 AbstractCegarLoop]: Abstraction has 15357 states and 20509 transitions. [2020-12-22 08:24:32,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:24:32,440 INFO L276 IsEmpty]: Start isEmpty. Operand 15357 states and 20509 transitions. [2020-12-22 08:24:32,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 08:24:32,447 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:32,447 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] [2020-12-22 08:24:32,447 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:24:32,447 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:32,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:32,448 INFO L82 PathProgramCache]: Analyzing trace with hash 502084112, now seen corresponding path program 1 times [2020-12-22 08:24:32,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:32,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097267102] [2020-12-22 08:24:32,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:32,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:32,906 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 08:24:32,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097267102] [2020-12-22 08:24:32,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:32,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:24:32,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713788703] [2020-12-22 08:24:32,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:24:32,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:32,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:24:32,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:24:32,908 INFO L87 Difference]: Start difference. First operand 15357 states and 20509 transitions. Second operand 12 states. [2020-12-22 08:24:47,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:47,607 INFO L93 Difference]: Finished difference Result 39551 states and 55861 transitions. [2020-12-22 08:24:47,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 08:24:47,608 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 70 [2020-12-22 08:24:47,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:47,655 INFO L225 Difference]: With dead ends: 39551 [2020-12-22 08:24:47,655 INFO L226 Difference]: Without dead ends: 39539 [2020-12-22 08:24:47,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:24:47,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39539 states. [2020-12-22 08:24:49,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39539 to 15350. [2020-12-22 08:24:49,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15350 states. [2020-12-22 08:24:49,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15350 states to 15350 states and 20501 transitions. [2020-12-22 08:24:49,991 INFO L78 Accepts]: Start accepts. Automaton has 15350 states and 20501 transitions. Word has length 70 [2020-12-22 08:24:49,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:49,991 INFO L481 AbstractCegarLoop]: Abstraction has 15350 states and 20501 transitions. [2020-12-22 08:24:49,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:24:49,991 INFO L276 IsEmpty]: Start isEmpty. Operand 15350 states and 20501 transitions. [2020-12-22 08:24:49,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 08:24:49,999 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:50,000 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] [2020-12-22 08:24:50,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:24:50,000 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:50,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:50,000 INFO L82 PathProgramCache]: Analyzing trace with hash -683220265, now seen corresponding path program 1 times [2020-12-22 08:24:50,001 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:50,001 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679710412] [2020-12-22 08:24:50,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:50,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:24:50,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679710412] [2020-12-22 08:24:50,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:50,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:24:50,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217597459] [2020-12-22 08:24:50,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:24:50,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:50,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:24:50,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:24:50,086 INFO L87 Difference]: Start difference. First operand 15350 states and 20501 transitions. Second operand 3 states. [2020-12-22 08:24:53,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:24:53,173 INFO L93 Difference]: Finished difference Result 23709 states and 32846 transitions. [2020-12-22 08:24:53,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:24:53,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-22 08:24:53,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:24:53,192 INFO L225 Difference]: With dead ends: 23709 [2020-12-22 08:24:53,192 INFO L226 Difference]: Without dead ends: 14539 [2020-12-22 08:24:53,204 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 08:24:53,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14539 states. [2020-12-22 08:24:55,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14539 to 14520. [2020-12-22 08:24:55,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14520 states. [2020-12-22 08:24:56,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14520 states to 14520 states and 20064 transitions. [2020-12-22 08:24:56,004 INFO L78 Accepts]: Start accepts. Automaton has 14520 states and 20064 transitions. Word has length 70 [2020-12-22 08:24:56,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:24:56,004 INFO L481 AbstractCegarLoop]: Abstraction has 14520 states and 20064 transitions. [2020-12-22 08:24:56,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:24:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 14520 states and 20064 transitions. [2020-12-22 08:24:56,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 08:24:56,011 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:24:56,011 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] [2020-12-22 08:24:56,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:24:56,012 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:24:56,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:24:56,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1404122129, now seen corresponding path program 1 times [2020-12-22 08:24:56,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:24:56,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907284062] [2020-12-22 08:24:56,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:24:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:24:56,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:24:56,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907284062] [2020-12-22 08:24:56,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:24:56,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:24:56,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152106912] [2020-12-22 08:24:56,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:24:56,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:24:56,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:24:56,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:24:56,440 INFO L87 Difference]: Start difference. First operand 14520 states and 20064 transitions. Second operand 9 states. [2020-12-22 08:25:14,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:25:14,368 INFO L93 Difference]: Finished difference Result 46749 states and 68726 transitions. [2020-12-22 08:25:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:25:14,369 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 71 [2020-12-22 08:25:14,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:25:14,409 INFO L225 Difference]: With dead ends: 46749 [2020-12-22 08:25:14,409 INFO L226 Difference]: Without dead ends: 39868 [2020-12-22 08:25:14,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=232, Invalid=638, Unknown=0, NotChecked=0, Total=870 [2020-12-22 08:25:14,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39868 states. [2020-12-22 08:25:17,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39868 to 14520. [2020-12-22 08:25:17,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14520 states. [2020-12-22 08:25:17,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14520 states to 14520 states and 20063 transitions. [2020-12-22 08:25:17,327 INFO L78 Accepts]: Start accepts. Automaton has 14520 states and 20063 transitions. Word has length 71 [2020-12-22 08:25:17,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:25:17,327 INFO L481 AbstractCegarLoop]: Abstraction has 14520 states and 20063 transitions. [2020-12-22 08:25:17,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:25:17,327 INFO L276 IsEmpty]: Start isEmpty. Operand 14520 states and 20063 transitions. [2020-12-22 08:25:17,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 08:25:17,334 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:25:17,334 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] [2020-12-22 08:25:17,334 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:25:17,335 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:25:17,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:25:17,335 INFO L82 PathProgramCache]: Analyzing trace with hash 1017361466, now seen corresponding path program 1 times [2020-12-22 08:25:17,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:25:17,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772745485] [2020-12-22 08:25:17,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:25:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:25:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:25:17,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772745485] [2020-12-22 08:25:17,515 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:25:17,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:25:17,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026232325] [2020-12-22 08:25:17,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:25:17,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:25:17,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:25:17,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:25:17,517 INFO L87 Difference]: Start difference. First operand 14520 states and 20063 transitions. Second operand 9 states.