/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:31:10,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:31:10,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:31:10,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:31:10,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:31:10,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:31:10,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:31:10,688 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:31:10,690 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:31:10,692 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:31:10,695 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:31:10,697 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:31:10,697 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:31:10,702 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:31:10,704 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:31:10,706 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:31:10,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:31:10,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:31:10,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:31:10,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:31:10,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:31:10,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:31:10,730 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:31:10,732 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:31:10,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 08:31:10,745 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:31:10,746 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:31:10,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:31:10,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:31:10,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:31:10,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:31:10,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:31:10,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:31:10,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:31:10,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:31:10,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:31:10,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:31:10,807 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:31:10,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:31:10,812 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:31:10,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:31:10,812 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:31:10,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:31:10,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:31:10,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:31:10,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:31:10,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:31:10,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:31:10,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:31:10,815 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:31:10,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:31:10,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:31:10,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:31:10,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:31:10,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:31:10,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:31:10,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:31:10,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:31:10,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:31:10,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:31:10,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:31:10,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:31:10,818 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:31:11,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:31:11,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:31:11,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:31:11,267 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:31:11,268 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:31:11,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:31:11,349 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b731d1d/6051b47d579745718765ce28a82aa107/FLAG57b63210c [2020-12-22 08:31:12,693 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:31:12,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:31:12,782 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b731d1d/6051b47d579745718765ce28a82aa107/FLAG57b63210c [2020-12-22 08:31:12,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5b731d1d/6051b47d579745718765ce28a82aa107 [2020-12-22 08:31:12,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:31:12,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:31:12,946 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:31:12,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:31:12,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:31:12,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:31:12" (1/1) ... [2020-12-22 08:31:12,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10f03033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:12, skipping insertion in model container [2020-12-22 08:31:12,965 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:31:12" (1/1) ... [2020-12-22 08:31:12,986 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:31:13,455 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:31:14,603 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82289,82302] [2020-12-22 08:31:14,791 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[113073,113086] [2020-12-22 08:31:14,958 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[165390,165403] [2020-12-22 08:31:15,047 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[196961,196974] [2020-12-22 08:31:15,073 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[205482,205495] [2020-12-22 08:31:15,081 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[207432,207445] [2020-12-22 08:31:15,132 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223767,223780] [2020-12-22 08:31:15,155 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[230841,230854] [2020-12-22 08:31:15,245 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[259167,259180] [2020-12-22 08:31:15,333 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[286933,286946] [2020-12-22 08:31:15,586 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[370535,370548] [2020-12-22 08:31:15,656 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[389202,389215] [2020-12-22 08:31:15,715 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[408245,408258] [2020-12-22 08:31:15,740 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[415261,415274] [2020-12-22 08:31:15,753 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[418758,418771] [2020-12-22 08:31:15,800 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[433403,433416] [2020-12-22 08:31:15,846 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[447883,447896] [2020-12-22 08:31:15,934 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[479961,479974] [2020-12-22 08:31:16,183 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[569403,569416] [2020-12-22 08:31:16,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:31:16,527 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:31:16,781 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[82289,82302] [2020-12-22 08:31:16,863 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[113073,113086] [2020-12-22 08:31:16,990 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.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[165390,165403] [2020-12-22 08:31:17,066 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[196961,196974] [2020-12-22 08:31:17,089 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[205482,205495] [2020-12-22 08:31:17,096 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[207432,207445] [2020-12-22 08:31:17,140 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[223767,223780] [2020-12-22 08:31:17,160 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[230841,230854] [2020-12-22 08:31:17,293 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[259167,259180] [2020-12-22 08:31:17,371 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[286933,286946] [2020-12-22 08:31:17,581 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[370535,370548] [2020-12-22 08:31:17,628 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[389202,389215] [2020-12-22 08:31:17,674 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[408245,408258] [2020-12-22 08:31:17,694 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[415261,415274] [2020-12-22 08:31:17,705 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[418758,418771] [2020-12-22 08:31:17,740 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[433403,433416] [2020-12-22 08:31:17,778 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[447883,447896] [2020-12-22 08:31:17,857 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[479961,479974] [2020-12-22 08:31:18,064 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c[569403,569416] [2020-12-22 08:31:18,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:31:18,389 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:31:18,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18 WrapperNode [2020-12-22 08:31:18,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:31:18,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:31:18,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:31:18,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:31:18,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (1/1) ... [2020-12-22 08:31:18,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (1/1) ... [2020-12-22 08:31:18,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:31:18,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:31:18,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:31:18,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:31:18,941 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (1/1) ... [2020-12-22 08:31:18,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (1/1) ... [2020-12-22 08:31:19,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (1/1) ... [2020-12-22 08:31:19,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (1/1) ... [2020-12-22 08:31:19,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (1/1) ... [2020-12-22 08:31:19,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (1/1) ... [2020-12-22 08:31:19,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (1/1) ... [2020-12-22 08:31:19,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:31:19,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:31:19,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:31:19,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:31:19,552 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (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 08:31:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:31:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:31:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:31:19,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:31:34,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:31:34,954 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:31:34,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:31:34 BoogieIcfgContainer [2020-12-22 08:31:34,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:31:34,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:31:34,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:31:34,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:31:34,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:31:12" (1/3) ... [2020-12-22 08:31:34,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270e2ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:31:34, skipping insertion in model container [2020-12-22 08:31:34,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:31:18" (2/3) ... [2020-12-22 08:31:34,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270e2ac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:31:34, skipping insertion in model container [2020-12-22 08:31:34,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:31:34" (3/3) ... [2020-12-22 08:31:34,972 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2020-12-22 08:31:34,979 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:31:34,987 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2020-12-22 08:31:35,007 INFO L253 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2020-12-22 08:31:35,058 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:31:35,058 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:31:35,058 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:31:35,058 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:31:35,059 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:31:35,059 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:31:35,059 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:31:35,059 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:31:35,160 INFO L276 IsEmpty]: Start isEmpty. Operand 6183 states. [2020-12-22 08:31:35,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-12-22 08:31:35,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:31:35,224 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:31:35,224 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:31:35,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:31:35,231 INFO L82 PathProgramCache]: Analyzing trace with hash 642976960, now seen corresponding path program 1 times [2020-12-22 08:31:35,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:31:35,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398656866] [2020-12-22 08:31:35,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:31:35,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:31:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:31:35,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398656866] [2020-12-22 08:31:35,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:31:35,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:31:35,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912100300] [2020-12-22 08:31:35,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:31:35,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:31:35,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:31:35,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:31:35,911 INFO L87 Difference]: Start difference. First operand 6183 states. Second operand 5 states. [2020-12-22 08:31:43,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:31:43,861 INFO L93 Difference]: Finished difference Result 9223 states and 16402 transitions. [2020-12-22 08:31:43,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:31:43,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-12-22 08:31:43,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:31:43,922 INFO L225 Difference]: With dead ends: 9223 [2020-12-22 08:31:43,922 INFO L226 Difference]: Without dead ends: 5815 [2020-12-22 08:31:43,936 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 08:31:43,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5815 states. [2020-12-22 08:31:44,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5815 to 5785. [2020-12-22 08:31:44,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5785 states. [2020-12-22 08:31:44,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 7687 transitions. [2020-12-22 08:31:44,310 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 7687 transitions. Word has length 77 [2020-12-22 08:31:44,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:31:44,312 INFO L481 AbstractCegarLoop]: Abstraction has 5785 states and 7687 transitions. [2020-12-22 08:31:44,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:31:44,313 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 7687 transitions. [2020-12-22 08:31:44,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:31:44,334 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:31:44,334 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:31:44,335 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:31:44,335 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:31:44,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:31:44,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1955930775, now seen corresponding path program 1 times [2020-12-22 08:31:44,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:31:44,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407646328] [2020-12-22 08:31:44,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:31:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:31:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:31:44,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407646328] [2020-12-22 08:31:44,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:31:44,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:31:44,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459534457] [2020-12-22 08:31:44,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:31:44,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:31:44,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:31:44,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:31:44,797 INFO L87 Difference]: Start difference. First operand 5785 states and 7687 transitions. Second operand 9 states. [2020-12-22 08:31:58,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:31:58,667 INFO L93 Difference]: Finished difference Result 6282 states and 8361 transitions. [2020-12-22 08:31:58,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-12-22 08:31:58,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 78 [2020-12-22 08:31:58,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:31:58,701 INFO L225 Difference]: With dead ends: 6282 [2020-12-22 08:31:58,702 INFO L226 Difference]: Without dead ends: 6277 [2020-12-22 08:31:58,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:31:58,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6277 states. [2020-12-22 08:31:58,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6277 to 5785. [2020-12-22 08:31:58,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5785 states. [2020-12-22 08:31:58,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5785 states to 5785 states and 7686 transitions. [2020-12-22 08:31:58,934 INFO L78 Accepts]: Start accepts. Automaton has 5785 states and 7686 transitions. Word has length 78 [2020-12-22 08:31:58,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:31:58,936 INFO L481 AbstractCegarLoop]: Abstraction has 5785 states and 7686 transitions. [2020-12-22 08:31:58,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:31:58,942 INFO L276 IsEmpty]: Start isEmpty. Operand 5785 states and 7686 transitions. [2020-12-22 08:31:58,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 08:31:58,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:31:58,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:31:58,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:31:58,959 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:31:58,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:31:58,962 INFO L82 PathProgramCache]: Analyzing trace with hash 2136533534, now seen corresponding path program 1 times [2020-12-22 08:31:58,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:31:58,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313473971] [2020-12-22 08:31:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:31:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:31:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:31:59,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313473971] [2020-12-22 08:31:59,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:31:59,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:31:59,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939424985] [2020-12-22 08:31:59,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:31:59,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:31:59,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:31:59,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:31:59,200 INFO L87 Difference]: Start difference. First operand 5785 states and 7686 transitions. Second operand 6 states. [2020-12-22 08:32:08,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:32:08,935 INFO L93 Difference]: Finished difference Result 12655 states and 17038 transitions. [2020-12-22 08:32:08,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:32:08,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-12-22 08:32:08,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:32:08,983 INFO L225 Difference]: With dead ends: 12655 [2020-12-22 08:32:08,984 INFO L226 Difference]: Without dead ends: 8935 [2020-12-22 08:32:08,995 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 08:32:09,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8935 states. [2020-12-22 08:32:09,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8935 to 7739. [2020-12-22 08:32:09,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7739 states. [2020-12-22 08:32:09,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7739 states to 7739 states and 10317 transitions. [2020-12-22 08:32:09,326 INFO L78 Accepts]: Start accepts. Automaton has 7739 states and 10317 transitions. Word has length 78 [2020-12-22 08:32:09,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:32:09,326 INFO L481 AbstractCegarLoop]: Abstraction has 7739 states and 10317 transitions. [2020-12-22 08:32:09,327 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:32:09,327 INFO L276 IsEmpty]: Start isEmpty. Operand 7739 states and 10317 transitions. [2020-12-22 08:32:09,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:32:09,346 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:32:09,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:32:09,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:32:09,347 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:32:09,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:32:09,347 INFO L82 PathProgramCache]: Analyzing trace with hash 816480341, now seen corresponding path program 1 times [2020-12-22 08:32:09,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:32:09,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720330891] [2020-12-22 08:32:09,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:32:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:32:09,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:32:09,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720330891] [2020-12-22 08:32:09,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:32:09,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:32:09,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644950888] [2020-12-22 08:32:09,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:32:09,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:32:09,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:32:09,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:32:09,484 INFO L87 Difference]: Start difference. First operand 7739 states and 10317 transitions. Second operand 5 states. [2020-12-22 08:32:17,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:32:17,682 INFO L93 Difference]: Finished difference Result 15128 states and 20279 transitions. [2020-12-22 08:32:17,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:32:17,683 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 79 [2020-12-22 08:32:17,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:32:17,722 INFO L225 Difference]: With dead ends: 15128 [2020-12-22 08:32:17,723 INFO L226 Difference]: Without dead ends: 9745 [2020-12-22 08:32:17,734 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 08:32:17,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9745 states. [2020-12-22 08:32:18,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9745 to 9719. [2020-12-22 08:32:18,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9719 states. [2020-12-22 08:32:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9719 states to 9719 states and 12863 transitions. [2020-12-22 08:32:18,147 INFO L78 Accepts]: Start accepts. Automaton has 9719 states and 12863 transitions. Word has length 79 [2020-12-22 08:32:18,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:32:18,148 INFO L481 AbstractCegarLoop]: Abstraction has 9719 states and 12863 transitions. [2020-12-22 08:32:18,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:32:18,148 INFO L276 IsEmpty]: Start isEmpty. Operand 9719 states and 12863 transitions. [2020-12-22 08:32:18,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:32:18,165 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:32:18,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:32:18,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:32:18,166 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:32:18,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:32:18,167 INFO L82 PathProgramCache]: Analyzing trace with hash 42417281, now seen corresponding path program 1 times [2020-12-22 08:32:18,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:32:18,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725959727] [2020-12-22 08:32:18,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:32:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:32:18,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:32:18,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725959727] [2020-12-22 08:32:18,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:32:18,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 08:32:18,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371396468] [2020-12-22 08:32:18,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:32:18,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:32:18,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:32:18,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:32:18,795 INFO L87 Difference]: Start difference. First operand 9719 states and 12863 transitions. Second operand 12 states. [2020-12-22 08:32:29,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:32:29,690 INFO L93 Difference]: Finished difference Result 25107 states and 35608 transitions. [2020-12-22 08:32:29,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:32:29,691 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2020-12-22 08:32:29,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:32:29,751 INFO L225 Difference]: With dead ends: 25107 [2020-12-22 08:32:29,751 INFO L226 Difference]: Without dead ends: 24251 [2020-12-22 08:32:29,763 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=156, Invalid=444, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:32:29,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24251 states. [2020-12-22 08:32:30,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24251 to 9663. [2020-12-22 08:32:30,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9663 states. [2020-12-22 08:32:30,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9663 states to 9663 states and 12786 transitions. [2020-12-22 08:32:30,465 INFO L78 Accepts]: Start accepts. Automaton has 9663 states and 12786 transitions. Word has length 79 [2020-12-22 08:32:30,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:32:30,466 INFO L481 AbstractCegarLoop]: Abstraction has 9663 states and 12786 transitions. [2020-12-22 08:32:30,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:32:30,466 INFO L276 IsEmpty]: Start isEmpty. Operand 9663 states and 12786 transitions. [2020-12-22 08:32:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 08:32:30,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:32:30,482 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:32:30,482 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:32:30,482 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:32:30,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:32:30,483 INFO L82 PathProgramCache]: Analyzing trace with hash 1994039540, now seen corresponding path program 1 times [2020-12-22 08:32:30,483 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:32:30,483 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254593538] [2020-12-22 08:32:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:32:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:32:30,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:32:30,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254593538] [2020-12-22 08:32:30,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:32:30,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:32:30,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365896058] [2020-12-22 08:32:30,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:32:30,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:32:30,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:32:30,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:32:30,617 INFO L87 Difference]: Start difference. First operand 9663 states and 12786 transitions. Second operand 6 states. [2020-12-22 08:32:37,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:32:37,872 INFO L93 Difference]: Finished difference Result 20087 states and 27016 transitions. [2020-12-22 08:32:37,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:32:37,873 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2020-12-22 08:32:37,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:32:37,908 INFO L225 Difference]: With dead ends: 20087 [2020-12-22 08:32:37,908 INFO L226 Difference]: Without dead ends: 13967 [2020-12-22 08:32:37,922 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 08:32:37,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13967 states. [2020-12-22 08:32:38,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13967 to 13922. [2020-12-22 08:32:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13922 states. [2020-12-22 08:32:38,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13922 states to 13922 states and 18907 transitions. [2020-12-22 08:32:38,863 INFO L78 Accepts]: Start accepts. Automaton has 13922 states and 18907 transitions. Word has length 79 [2020-12-22 08:32:38,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:32:38,863 INFO L481 AbstractCegarLoop]: Abstraction has 13922 states and 18907 transitions. [2020-12-22 08:32:38,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:32:38,864 INFO L276 IsEmpty]: Start isEmpty. Operand 13922 states and 18907 transitions. [2020-12-22 08:32:38,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:32:38,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:32:38,878 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:32:38,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:32:38,879 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:32:38,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:32:38,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1428801169, now seen corresponding path program 1 times [2020-12-22 08:32:38,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:32:38,880 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912108986] [2020-12-22 08:32:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:32:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:32:39,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:32:39,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912108986] [2020-12-22 08:32:39,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:32:39,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 08:32:39,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478709367] [2020-12-22 08:32:39,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:32:39,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:32:39,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:32:39,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:32:39,169 INFO L87 Difference]: Start difference. First operand 13922 states and 18907 transitions. Second operand 10 states. [2020-12-22 08:33:00,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:33:00,155 INFO L93 Difference]: Finished difference Result 33611 states and 48644 transitions. [2020-12-22 08:33:00,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-22 08:33:00,156 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 80 [2020-12-22 08:33:00,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:33:00,206 INFO L225 Difference]: With dead ends: 33611 [2020-12-22 08:33:00,207 INFO L226 Difference]: Without dead ends: 31196 [2020-12-22 08:33:00,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=266, Invalid=790, Unknown=0, NotChecked=0, Total=1056 [2020-12-22 08:33:00,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31196 states. [2020-12-22 08:33:01,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31196 to 13929. [2020-12-22 08:33:01,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13929 states. [2020-12-22 08:33:01,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13929 states to 13929 states and 18914 transitions. [2020-12-22 08:33:01,403 INFO L78 Accepts]: Start accepts. Automaton has 13929 states and 18914 transitions. Word has length 80 [2020-12-22 08:33:01,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:33:01,404 INFO L481 AbstractCegarLoop]: Abstraction has 13929 states and 18914 transitions. [2020-12-22 08:33:01,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 08:33:01,404 INFO L276 IsEmpty]: Start isEmpty. Operand 13929 states and 18914 transitions. [2020-12-22 08:33:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 08:33:01,414 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:33:01,414 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:33:01,414 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:33:01,414 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:33:01,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:33:01,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1294381398, now seen corresponding path program 1 times [2020-12-22 08:33:01,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:33:01,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532235547] [2020-12-22 08:33:01,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:33:01,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:33:01,553 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 08:33:01,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532235547] [2020-12-22 08:33:01,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:33:01,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:33:01,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855554511] [2020-12-22 08:33:01,554 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:33:01,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:33:01,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:33:01,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:33:01,557 INFO L87 Difference]: Start difference. First operand 13929 states and 18914 transitions. Second operand 6 states. [2020-12-22 08:33:10,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:33:10,225 INFO L93 Difference]: Finished difference Result 32440 states and 44562 transitions. [2020-12-22 08:33:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:33:10,226 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2020-12-22 08:33:10,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:33:10,265 INFO L225 Difference]: With dead ends: 32440 [2020-12-22 08:33:10,265 INFO L226 Difference]: Without dead ends: 24312 [2020-12-22 08:33:10,281 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 08:33:10,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24312 states. [2020-12-22 08:33:12,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24312 to 24280. [2020-12-22 08:33:12,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24280 states. [2020-12-22 08:33:12,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24280 states to 24280 states and 33266 transitions. [2020-12-22 08:33:12,079 INFO L78 Accepts]: Start accepts. Automaton has 24280 states and 33266 transitions. Word has length 80 [2020-12-22 08:33:12,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:33:12,079 INFO L481 AbstractCegarLoop]: Abstraction has 24280 states and 33266 transitions. [2020-12-22 08:33:12,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:33:12,079 INFO L276 IsEmpty]: Start isEmpty. Operand 24280 states and 33266 transitions. [2020-12-22 08:33:12,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:33:12,091 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:33:12,091 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:33:12,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:33:12,096 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:33:12,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:33:12,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1633622625, now seen corresponding path program 1 times [2020-12-22 08:33:12,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:33:12,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823590395] [2020-12-22 08:33:12,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:33:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:33:12,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:33:12,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823590395] [2020-12-22 08:33:12,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:33:12,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:33:12,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170398812] [2020-12-22 08:33:12,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:33:12,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:33:12,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:33:12,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:33:12,205 INFO L87 Difference]: Start difference. First operand 24280 states and 33266 transitions. Second operand 3 states. [2020-12-22 08:33:15,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:33:15,334 INFO L93 Difference]: Finished difference Result 50201 states and 69574 transitions. [2020-12-22 08:33:15,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:33:15,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2020-12-22 08:33:15,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:33:15,376 INFO L225 Difference]: With dead ends: 50201 [2020-12-22 08:33:15,376 INFO L226 Difference]: Without dead ends: 30738 [2020-12-22 08:33:15,408 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 08:33:15,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30738 states. [2020-12-22 08:33:18,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30738 to 30711. [2020-12-22 08:33:18,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30711 states. [2020-12-22 08:33:18,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30711 states to 30711 states and 42141 transitions. [2020-12-22 08:33:18,202 INFO L78 Accepts]: Start accepts. Automaton has 30711 states and 42141 transitions. Word has length 81 [2020-12-22 08:33:18,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:33:18,202 INFO L481 AbstractCegarLoop]: Abstraction has 30711 states and 42141 transitions. [2020-12-22 08:33:18,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:33:18,203 INFO L276 IsEmpty]: Start isEmpty. Operand 30711 states and 42141 transitions. [2020-12-22 08:33:18,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:33:18,217 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:33:18,217 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:33:18,217 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:33:18,217 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:33:18,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:33:18,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1819290860, now seen corresponding path program 1 times [2020-12-22 08:33:18,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:33:18,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102749159] [2020-12-22 08:33:18,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:33:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:33:19,902 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 08:33:19,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102749159] [2020-12-22 08:33:19,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:33:19,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-12-22 08:33:19,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83467546] [2020-12-22 08:33:19,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-12-22 08:33:19,903 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:33:19,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-12-22 08:33:19,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2020-12-22 08:33:19,904 INFO L87 Difference]: Start difference. First operand 30711 states and 42141 transitions. Second operand 19 states. [2020-12-22 08:33:20,128 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-12-22 08:33:20,419 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2020-12-22 08:33:20,573 WARN L197 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2020-12-22 08:33:20,750 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-12-22 08:33:20,949 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-22 08:33:21,259 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-22 08:33:21,590 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:33:22,219 WARN L197 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2020-12-22 08:33:22,850 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-12-22 08:33:24,407 WARN L197 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-12-22 08:33:25,143 WARN L197 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-12-22 08:33:25,989 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-22 08:33:26,663 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-22 08:33:27,437 WARN L197 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2020-12-22 08:33:28,281 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-12-22 08:33:29,933 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-22 08:33:30,119 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:33:31,128 WARN L197 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-12-22 08:33:33,978 WARN L197 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-22 08:33:35,097 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-22 08:33:41,664 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2020-12-22 08:33:42,845 WARN L197 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-12-22 08:33:43,593 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-22 08:33:44,063 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-12-22 08:33:45,776 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 35 [2020-12-22 08:33:46,358 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2020-12-22 08:33:48,130 WARN L197 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-22 08:33:49,895 WARN L197 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-12-22 08:33:51,950 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2020-12-22 08:33:53,160 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2020-12-22 08:33:53,542 WARN L197 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2020-12-22 08:33:53,850 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-22 08:33:54,346 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2020-12-22 08:33:55,504 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-22 08:33:57,019 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-12-22 08:33:58,791 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2020-12-22 08:34:02,178 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-22 08:34:05,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:34:05,322 INFO L93 Difference]: Finished difference Result 112441 states and 167490 transitions. [2020-12-22 08:34:05,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-12-22 08:34:05,323 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 81 [2020-12-22 08:34:05,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:34:05,471 INFO L225 Difference]: With dead ends: 112441 [2020-12-22 08:34:05,471 INFO L226 Difference]: Without dead ends: 112437 [2020-12-22 08:34:05,501 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 911 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=740, Invalid=2920, Unknown=0, NotChecked=0, Total=3660 [2020-12-22 08:34:05,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112437 states. [2020-12-22 08:34:09,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112437 to 30707. [2020-12-22 08:34:09,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30707 states. [2020-12-22 08:34:09,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30707 states to 30707 states and 42137 transitions. [2020-12-22 08:34:09,695 INFO L78 Accepts]: Start accepts. Automaton has 30707 states and 42137 transitions. Word has length 81 [2020-12-22 08:34:09,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:34:09,695 INFO L481 AbstractCegarLoop]: Abstraction has 30707 states and 42137 transitions. [2020-12-22 08:34:09,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-12-22 08:34:09,695 INFO L276 IsEmpty]: Start isEmpty. Operand 30707 states and 42137 transitions. [2020-12-22 08:34:09,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-12-22 08:34:09,705 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:34:09,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:34:09,706 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:34:09,706 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:34:09,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:34:09,706 INFO L82 PathProgramCache]: Analyzing trace with hash 153905521, now seen corresponding path program 1 times [2020-12-22 08:34:09,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:34:09,707 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919990269] [2020-12-22 08:34:09,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:34:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:34:09,935 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 08:34:09,936 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919990269] [2020-12-22 08:34:09,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:34:09,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:34:09,936 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542212702] [2020-12-22 08:34:09,937 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:34:09,937 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:34:09,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:34:09,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:34:09,938 INFO L87 Difference]: Start difference. First operand 30707 states and 42137 transitions. Second operand 9 states. [2020-12-22 08:34:28,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:34:28,985 INFO L93 Difference]: Finished difference Result 43535 states and 61844 transitions. [2020-12-22 08:34:28,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-22 08:34:28,986 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 81 [2020-12-22 08:34:28,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:34:29,037 INFO L225 Difference]: With dead ends: 43535 [2020-12-22 08:34:29,037 INFO L226 Difference]: Without dead ends: 43527 [2020-12-22 08:34:29,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=150, Invalid=356, Unknown=0, NotChecked=0, Total=506 [2020-12-22 08:34:29,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43527 states. [2020-12-22 08:34:32,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43527 to 30707. [2020-12-22 08:34:32,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30707 states. [2020-12-22 08:34:32,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30707 states to 30707 states and 42136 transitions. [2020-12-22 08:34:32,566 INFO L78 Accepts]: Start accepts. Automaton has 30707 states and 42136 transitions. Word has length 81 [2020-12-22 08:34:32,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:34:32,566 INFO L481 AbstractCegarLoop]: Abstraction has 30707 states and 42136 transitions. [2020-12-22 08:34:32,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:34:32,566 INFO L276 IsEmpty]: Start isEmpty. Operand 30707 states and 42136 transitions. [2020-12-22 08:34:32,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 08:34:32,577 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:34:32,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:34:32,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:34:32,577 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:34:32,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:34:32,578 INFO L82 PathProgramCache]: Analyzing trace with hash -1262373862, now seen corresponding path program 1 times [2020-12-22 08:34:32,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:34:32,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178976331] [2020-12-22 08:34:32,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:34:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:34:32,882 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 08:34:32,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178976331] [2020-12-22 08:34:32,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:34:32,883 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 08:34:32,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141509125] [2020-12-22 08:34:32,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 08:34:32,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:34:32,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 08:34:32,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-12-22 08:34:32,885 INFO L87 Difference]: Start difference. First operand 30707 states and 42136 transitions. Second operand 10 states. [2020-12-22 08:34:59,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:34:59,485 INFO L93 Difference]: Finished difference Result 69486 states and 101633 transitions. [2020-12-22 08:34:59,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-22 08:34:59,487 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-12-22 08:34:59,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:34:59,556 INFO L225 Difference]: With dead ends: 69486 [2020-12-22 08:34:59,557 INFO L226 Difference]: Without dead ends: 59582 [2020-12-22 08:34:59,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=189, Invalid=513, Unknown=0, NotChecked=0, Total=702 [2020-12-22 08:34:59,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59582 states.