/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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:56:49,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:56:49,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:56:49,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:56:49,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:56:49,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:56:49,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:56:49,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:56:49,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:56:49,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:56:49,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:56:49,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:56:49,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:56:49,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:56:49,333 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:56:49,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:56:49,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:56:49,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:56:49,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:56:49,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:56:49,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:56:49,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:56:49,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:56:49,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:56:49,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:56:49,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:56:49,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:56:49,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:56:49,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:56:49,385 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:56:49,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:56:49,387 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:56:49,388 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:56:49,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:56:49,390 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:56:49,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:56:49,391 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:56:49,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:56:49,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:56:49,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:56:49,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:56:49,398 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:56:49,446 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:56:49,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:56:49,451 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:56:49,451 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:56:49,452 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:56:49,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:56:49,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:56:49,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:56:49,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:56:49,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:56:49,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:56:49,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:56:49,454 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:56:49,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:56:49,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:56:49,455 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:56:49,455 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:56:49,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:56:49,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:56:49,456 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:56:49,456 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:56:49,456 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:56:49,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:56:49,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:56:49,456 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:56:49,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:56:49,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:56:49,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:56:49,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:56:49,858 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:56:49,859 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:56:49,859 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:56:49,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8afe4a1c/49f0033566be4d1b973e78ef91f1a387/FLAGa82c74426 [2020-12-22 08:56:50,990 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:56:50,990 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:56:51,039 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8afe4a1c/49f0033566be4d1b973e78ef91f1a387/FLAGa82c74426 [2020-12-22 08:56:51,458 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8afe4a1c/49f0033566be4d1b973e78ef91f1a387 [2020-12-22 08:56:51,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:56:51,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:56:51,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:56:51,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:56:51,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:56:51,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:56:51" (1/1) ... [2020-12-22 08:56:51,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e37a48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:51, skipping insertion in model container [2020-12-22 08:56:51,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:56:51" (1/1) ... [2020-12-22 08:56:51,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:56:51,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:56:52,277 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16445,16458] [2020-12-22 08:56:52,316 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21538,21551] [2020-12-22 08:56:52,330 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22895,22908] [2020-12-22 08:56:52,346 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23703,23716] [2020-12-22 08:56:52,380 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25388,25401] [2020-12-22 08:56:52,388 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26196,26209] [2020-12-22 08:56:52,398 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27332,27345] [2020-12-22 08:56:52,418 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29986,29999] [2020-12-22 08:56:52,432 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30797,30810] [2020-12-22 08:56:52,455 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31936,31949] [2020-12-22 08:56:52,490 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34041,34054] [2020-12-22 08:56:52,530 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38129,38142] [2020-12-22 08:56:52,537 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38940,38953] [2020-12-22 08:56:52,546 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40079,40092] [2020-12-22 08:56:52,560 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42184,42197] [2020-12-22 08:56:52,581 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[45723,45736] [2020-12-22 08:56:52,616 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52169,52182] [2020-12-22 08:56:52,623 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52980,52993] [2020-12-22 08:56:52,631 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54123,54136] [2020-12-22 08:56:52,644 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56232,56245] [2020-12-22 08:56:52,670 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60020,60033] [2020-12-22 08:56:52,707 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[66668,66681] [2020-12-22 08:56:52,774 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[78802,78815] [2020-12-22 08:56:52,781 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79613,79626] [2020-12-22 08:56:52,789 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80752,80765] [2020-12-22 08:56:52,803 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[82857,82870] [2020-12-22 08:56:52,824 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86396,86409] [2020-12-22 08:56:52,857 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92293,92306] [2020-12-22 08:56:52,911 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102368,102381] [2020-12-22 08:56:53,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:56:53,758 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:56:53,855 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[16445,16458] [2020-12-22 08:56:53,872 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[21538,21551] [2020-12-22 08:56:53,880 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[22895,22908] [2020-12-22 08:56:53,885 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[23703,23716] [2020-12-22 08:56:53,893 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[25388,25401] [2020-12-22 08:56:53,898 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[26196,26209] [2020-12-22 08:56:53,904 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[27332,27345] [2020-12-22 08:56:53,917 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[29986,29999] [2020-12-22 08:56:53,923 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[30797,30810] [2020-12-22 08:56:53,930 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31936,31949] [2020-12-22 08:56:53,941 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34041,34054] [2020-12-22 08:56:53,962 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38129,38142] [2020-12-22 08:56:53,968 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38940,38953] [2020-12-22 08:56:53,975 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40079,40092] [2020-12-22 08:56:53,986 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[42184,42197] [2020-12-22 08:56:54,003 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[45723,45736] [2020-12-22 08:56:54,029 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52169,52182] [2020-12-22 08:56:54,035 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[52980,52993] [2020-12-22 08:56:54,041 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[54123,54136] [2020-12-22 08:56:54,052 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56232,56245] [2020-12-22 08:56:54,071 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60020,60033] [2020-12-22 08:56:54,103 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[66668,66681] [2020-12-22 08:56:54,156 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[78802,78815] [2020-12-22 08:56:54,162 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[79613,79626] [2020-12-22 08:56:54,168 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[80752,80765] [2020-12-22 08:56:54,178 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[82857,82870] [2020-12-22 08:56:54,194 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[86396,86409] [2020-12-22 08:56:54,217 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[92293,92306] [2020-12-22 08:56:54,254 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.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[102368,102381] [2020-12-22 08:56:54,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:56:54,910 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:56:54,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54 WrapperNode [2020-12-22 08:56:54,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:56:54,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:56:54,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:56:54,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:56:54,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (1/1) ... [2020-12-22 08:56:54,979 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (1/1) ... [2020-12-22 08:56:55,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:56:55,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:56:55,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:56:55,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:56:55,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (1/1) ... [2020-12-22 08:56:55,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (1/1) ... [2020-12-22 08:56:55,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (1/1) ... [2020-12-22 08:56:55,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (1/1) ... [2020-12-22 08:56:55,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (1/1) ... [2020-12-22 08:56:55,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (1/1) ... [2020-12-22 08:56:55,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (1/1) ... [2020-12-22 08:56:55,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:56:55,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:56:55,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:56:55,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:56:55,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (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 08:56:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:56:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:56:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:56:55,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:57:02,196 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:57:02,197 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:57:02,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:57:02 BoogieIcfgContainer [2020-12-22 08:57:02,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:57:02,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:57:02,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:57:02,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:57:02,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:56:51" (1/3) ... [2020-12-22 08:57:02,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380b5868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:57:02, skipping insertion in model container [2020-12-22 08:57:02,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:56:54" (2/3) ... [2020-12-22 08:57:02,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@380b5868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:57:02, skipping insertion in model container [2020-12-22 08:57:02,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:57:02" (3/3) ... [2020-12-22 08:57:02,214 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:57:02,221 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:57:02,227 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 29 error locations. [2020-12-22 08:57:02,246 INFO L253 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2020-12-22 08:57:02,299 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:57:02,299 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:57:02,300 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:57:02,300 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:57:02,300 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:57:02,300 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:57:02,300 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:57:02,300 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:57:02,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states. [2020-12-22 08:57:02,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-12-22 08:57:02,392 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:02,393 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:02,394 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:02,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:02,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1776091410, now seen corresponding path program 1 times [2020-12-22 08:57:02,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:02,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950755451] [2020-12-22 08:57:02,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:03,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:03,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950755451] [2020-12-22 08:57:03,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:03,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:57:03,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902288121] [2020-12-22 08:57:03,090 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:57:03,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:03,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:57:03,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:57:03,107 INFO L87 Difference]: Start difference. First operand 2064 states. Second operand 5 states. [2020-12-22 08:57:04,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:04,981 INFO L93 Difference]: Finished difference Result 3060 states and 5456 transitions. [2020-12-22 08:57:04,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:04,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-12-22 08:57:04,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:05,022 INFO L225 Difference]: With dead ends: 3060 [2020-12-22 08:57:05,022 INFO L226 Difference]: Without dead ends: 1645 [2020-12-22 08:57:05,034 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 08:57:05,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2020-12-22 08:57:05,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1645. [2020-12-22 08:57:05,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2020-12-22 08:57:05,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 2120 transitions. [2020-12-22 08:57:05,206 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 2120 transitions. Word has length 100 [2020-12-22 08:57:05,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:05,207 INFO L481 AbstractCegarLoop]: Abstraction has 1645 states and 2120 transitions. [2020-12-22 08:57:05,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:57:05,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 2120 transitions. [2020-12-22 08:57:05,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 08:57:05,216 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:05,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:57:05,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:57:05,217 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:05,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:05,219 INFO L82 PathProgramCache]: Analyzing trace with hash -211625454, now seen corresponding path program 1 times [2020-12-22 08:57:05,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:05,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445121083] [2020-12-22 08:57:05,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:05,648 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 08:57:05,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445121083] [2020-12-22 08:57:05,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:05,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:57:05,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894715621] [2020-12-22 08:57:05,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:57:05,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:05,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:57:05,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:57:05,663 INFO L87 Difference]: Start difference. First operand 1645 states and 2120 transitions. Second operand 6 states. [2020-12-22 08:57:07,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:07,369 INFO L93 Difference]: Finished difference Result 3209 states and 4320 transitions. [2020-12-22 08:57:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:07,369 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 101 [2020-12-22 08:57:07,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:07,380 INFO L225 Difference]: With dead ends: 3209 [2020-12-22 08:57:07,380 INFO L226 Difference]: Without dead ends: 1921 [2020-12-22 08:57:07,384 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 08:57:07,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-12-22 08:57:07,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1819. [2020-12-22 08:57:07,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1819 states. [2020-12-22 08:57:07,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2504 transitions. [2020-12-22 08:57:07,457 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2504 transitions. Word has length 101 [2020-12-22 08:57:07,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:07,458 INFO L481 AbstractCegarLoop]: Abstraction has 1819 states and 2504 transitions. [2020-12-22 08:57:07,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:57:07,458 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2504 transitions. [2020-12-22 08:57:07,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 08:57:07,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:07,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:07,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:57:07,464 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:07,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:07,464 INFO L82 PathProgramCache]: Analyzing trace with hash -929839904, now seen corresponding path program 1 times [2020-12-22 08:57:07,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:07,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178811774] [2020-12-22 08:57:07,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:07,682 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 08:57:07,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178811774] [2020-12-22 08:57:07,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:07,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:57:07,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845247707] [2020-12-22 08:57:07,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:57:07,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:07,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:57:07,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:57:07,685 INFO L87 Difference]: Start difference. First operand 1819 states and 2504 transitions. Second operand 6 states. [2020-12-22 08:57:09,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:09,152 INFO L93 Difference]: Finished difference Result 4045 states and 5683 transitions. [2020-12-22 08:57:09,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:09,153 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2020-12-22 08:57:09,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:09,166 INFO L225 Difference]: With dead ends: 4045 [2020-12-22 08:57:09,167 INFO L226 Difference]: Without dead ends: 2455 [2020-12-22 08:57:09,170 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 08:57:09,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2020-12-22 08:57:09,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2353. [2020-12-22 08:57:09,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2353 states. [2020-12-22 08:57:09,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2353 states to 2353 states and 3338 transitions. [2020-12-22 08:57:09,278 INFO L78 Accepts]: Start accepts. Automaton has 2353 states and 3338 transitions. Word has length 102 [2020-12-22 08:57:09,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:09,279 INFO L481 AbstractCegarLoop]: Abstraction has 2353 states and 3338 transitions. [2020-12-22 08:57:09,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:57:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand 2353 states and 3338 transitions. [2020-12-22 08:57:09,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-12-22 08:57:09,284 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:09,285 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:09,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:57:09,285 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:09,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:09,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1124974736, now seen corresponding path program 1 times [2020-12-22 08:57:09,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:09,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476532988] [2020-12-22 08:57:09,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:09,433 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 08:57:09,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476532988] [2020-12-22 08:57:09,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:09,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:57:09,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585458372] [2020-12-22 08:57:09,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:57:09,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:09,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:57:09,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:57:09,435 INFO L87 Difference]: Start difference. First operand 2353 states and 3338 transitions. Second operand 6 states. [2020-12-22 08:57:10,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:10,988 INFO L93 Difference]: Finished difference Result 5693 states and 8182 transitions. [2020-12-22 08:57:10,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:10,989 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2020-12-22 08:57:10,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:11,007 INFO L225 Difference]: With dead ends: 5693 [2020-12-22 08:57:11,007 INFO L226 Difference]: Without dead ends: 3493 [2020-12-22 08:57:11,012 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 08:57:11,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3493 states. [2020-12-22 08:57:11,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3493 to 3391. [2020-12-22 08:57:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3391 states. [2020-12-22 08:57:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3391 states to 3391 states and 4917 transitions. [2020-12-22 08:57:11,175 INFO L78 Accepts]: Start accepts. Automaton has 3391 states and 4917 transitions. Word has length 103 [2020-12-22 08:57:11,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:11,176 INFO L481 AbstractCegarLoop]: Abstraction has 3391 states and 4917 transitions. [2020-12-22 08:57:11,176 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:57:11,176 INFO L276 IsEmpty]: Start isEmpty. Operand 3391 states and 4917 transitions. [2020-12-22 08:57:11,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-12-22 08:57:11,182 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:11,182 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:11,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:57:11,183 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:11,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:11,184 INFO L82 PathProgramCache]: Analyzing trace with hash -935643307, now seen corresponding path program 1 times [2020-12-22 08:57:11,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:11,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097941064] [2020-12-22 08:57:11,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:11,339 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 08:57:11,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097941064] [2020-12-22 08:57:11,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:11,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:57:11,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548490935] [2020-12-22 08:57:11,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 08:57:11,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:11,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 08:57:11,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-22 08:57:11,341 INFO L87 Difference]: Start difference. First operand 3391 states and 4917 transitions. Second operand 6 states. [2020-12-22 08:57:12,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:12,716 INFO L93 Difference]: Finished difference Result 7804 states and 11217 transitions. [2020-12-22 08:57:12,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:12,717 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2020-12-22 08:57:12,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:12,739 INFO L225 Difference]: With dead ends: 7804 [2020-12-22 08:57:12,740 INFO L226 Difference]: Without dead ends: 4546 [2020-12-22 08:57:12,746 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 08:57:12,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4546 states. [2020-12-22 08:57:12,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4546 to 4446. [2020-12-22 08:57:12,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4446 states. [2020-12-22 08:57:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4446 states to 4446 states and 6350 transitions. [2020-12-22 08:57:12,981 INFO L78 Accepts]: Start accepts. Automaton has 4446 states and 6350 transitions. Word has length 104 [2020-12-22 08:57:12,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:12,982 INFO L481 AbstractCegarLoop]: Abstraction has 4446 states and 6350 transitions. [2020-12-22 08:57:12,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 08:57:12,982 INFO L276 IsEmpty]: Start isEmpty. Operand 4446 states and 6350 transitions. [2020-12-22 08:57:12,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-22 08:57:12,989 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:12,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:12,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:57:12,989 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:12,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:12,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1565610801, now seen corresponding path program 1 times [2020-12-22 08:57:12,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:12,990 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295479430] [2020-12-22 08:57:12,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:57:13,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295479430] [2020-12-22 08:57:13,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:13,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:57:13,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283338634] [2020-12-22 08:57:13,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:57:13,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:13,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:57:13,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:57:13,115 INFO L87 Difference]: Start difference. First operand 4446 states and 6350 transitions. Second operand 5 states. [2020-12-22 08:57:14,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:14,543 INFO L93 Difference]: Finished difference Result 8759 states and 12564 transitions. [2020-12-22 08:57:14,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:14,544 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-12-22 08:57:14,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:14,564 INFO L225 Difference]: With dead ends: 8759 [2020-12-22 08:57:14,565 INFO L226 Difference]: Without dead ends: 4412 [2020-12-22 08:57:14,572 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 08:57:14,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4412 states. [2020-12-22 08:57:14,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4412 to 4412. [2020-12-22 08:57:14,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4412 states. [2020-12-22 08:57:14,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4412 states to 4412 states and 6298 transitions. [2020-12-22 08:57:14,899 INFO L78 Accepts]: Start accepts. Automaton has 4412 states and 6298 transitions. Word has length 105 [2020-12-22 08:57:14,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:14,900 INFO L481 AbstractCegarLoop]: Abstraction has 4412 states and 6298 transitions. [2020-12-22 08:57:14,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:57:14,900 INFO L276 IsEmpty]: Start isEmpty. Operand 4412 states and 6298 transitions. [2020-12-22 08:57:14,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-12-22 08:57:14,910 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:14,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:14,910 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:57:14,911 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:14,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:14,911 INFO L82 PathProgramCache]: Analyzing trace with hash 2090179424, now seen corresponding path program 1 times [2020-12-22 08:57:14,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:14,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039778226] [2020-12-22 08:57:14,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:15,093 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 08:57:15,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039778226] [2020-12-22 08:57:15,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:15,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:57:15,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517662630] [2020-12-22 08:57:15,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:57:15,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:15,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:57:15,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:57:15,095 INFO L87 Difference]: Start difference. First operand 4412 states and 6298 transitions. Second operand 5 states. [2020-12-22 08:57:16,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:16,380 INFO L93 Difference]: Finished difference Result 8725 states and 12496 transitions. [2020-12-22 08:57:16,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 08:57:16,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-12-22 08:57:16,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:16,395 INFO L225 Difference]: With dead ends: 8725 [2020-12-22 08:57:16,396 INFO L226 Difference]: Without dead ends: 4392 [2020-12-22 08:57:16,401 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 08:57:16,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4392 states. [2020-12-22 08:57:16,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4392 to 4392. [2020-12-22 08:57:16,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4392 states. [2020-12-22 08:57:16,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 6261 transitions. [2020-12-22 08:57:16,658 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 6261 transitions. Word has length 106 [2020-12-22 08:57:16,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:16,659 INFO L481 AbstractCegarLoop]: Abstraction has 4392 states and 6261 transitions. [2020-12-22 08:57:16,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:57:16,659 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 6261 transitions. [2020-12-22 08:57:16,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-22 08:57:16,666 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:16,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:16,666 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:57:16,666 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:16,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:16,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1619061170, now seen corresponding path program 1 times [2020-12-22 08:57:16,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:16,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213173604] [2020-12-22 08:57:16,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:16,932 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 08:57:16,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213173604] [2020-12-22 08:57:16,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:16,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:16,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283048373] [2020-12-22 08:57:16,933 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:16,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:16,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:16,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:16,935 INFO L87 Difference]: Start difference. First operand 4392 states and 6261 transitions. Second operand 9 states. [2020-12-22 08:57:20,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:20,141 INFO L93 Difference]: Finished difference Result 8929 states and 13003 transitions. [2020-12-22 08:57:20,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:20,142 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2020-12-22 08:57:20,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:20,171 INFO L225 Difference]: With dead ends: 8929 [2020-12-22 08:57:20,171 INFO L226 Difference]: Without dead ends: 7098 [2020-12-22 08:57:20,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:57:20,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7098 states. [2020-12-22 08:57:20,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7098 to 4392. [2020-12-22 08:57:20,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4392 states. [2020-12-22 08:57:20,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 6260 transitions. [2020-12-22 08:57:20,636 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 6260 transitions. Word has length 107 [2020-12-22 08:57:20,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:20,637 INFO L481 AbstractCegarLoop]: Abstraction has 4392 states and 6260 transitions. [2020-12-22 08:57:20,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:20,637 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 6260 transitions. [2020-12-22 08:57:20,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-22 08:57:20,643 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:20,643 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:20,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:57:20,644 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:20,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:20,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1690715753, now seen corresponding path program 1 times [2020-12-22 08:57:20,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:20,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351112648] [2020-12-22 08:57:20,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:20,864 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 08:57:20,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351112648] [2020-12-22 08:57:20,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:20,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:20,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836259019] [2020-12-22 08:57:20,866 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:20,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:20,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:20,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:20,867 INFO L87 Difference]: Start difference. First operand 4392 states and 6260 transitions. Second operand 9 states. [2020-12-22 08:57:25,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:25,148 INFO L93 Difference]: Finished difference Result 11539 states and 16833 transitions. [2020-12-22 08:57:25,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:25,149 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 107 [2020-12-22 08:57:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:25,166 INFO L225 Difference]: With dead ends: 11539 [2020-12-22 08:57:25,166 INFO L226 Difference]: Without dead ends: 10028 [2020-12-22 08:57:25,171 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:57:25,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10028 states. [2020-12-22 08:57:25,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10028 to 4392. [2020-12-22 08:57:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4392 states. [2020-12-22 08:57:25,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4392 states to 4392 states and 6259 transitions. [2020-12-22 08:57:25,609 INFO L78 Accepts]: Start accepts. Automaton has 4392 states and 6259 transitions. Word has length 107 [2020-12-22 08:57:25,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:25,609 INFO L481 AbstractCegarLoop]: Abstraction has 4392 states and 6259 transitions. [2020-12-22 08:57:25,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:25,610 INFO L276 IsEmpty]: Start isEmpty. Operand 4392 states and 6259 transitions. [2020-12-22 08:57:25,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-22 08:57:25,616 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:25,617 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:25,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:57:25,617 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:25,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:25,618 INFO L82 PathProgramCache]: Analyzing trace with hash 64636340, now seen corresponding path program 1 times [2020-12-22 08:57:25,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:25,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629819245] [2020-12-22 08:57:25,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:25,925 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 08:57:25,925 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629819245] [2020-12-22 08:57:25,925 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:25,925 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 08:57:25,926 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23021862] [2020-12-22 08:57:25,926 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 08:57:25,926 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:25,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 08:57:25,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-22 08:57:25,927 INFO L87 Difference]: Start difference. First operand 4392 states and 6259 transitions. Second operand 8 states. [2020-12-22 08:57:28,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:28,138 INFO L93 Difference]: Finished difference Result 6518 states and 9352 transitions. [2020-12-22 08:57:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 08:57:28,139 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 107 [2020-12-22 08:57:28,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:28,148 INFO L225 Difference]: With dead ends: 6518 [2020-12-22 08:57:28,148 INFO L226 Difference]: Without dead ends: 4170 [2020-12-22 08:57:28,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-12-22 08:57:28,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4170 states. [2020-12-22 08:57:28,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4170 to 3426. [2020-12-22 08:57:28,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3426 states. [2020-12-22 08:57:28,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4885 transitions. [2020-12-22 08:57:28,539 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4885 transitions. Word has length 107 [2020-12-22 08:57:28,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:28,539 INFO L481 AbstractCegarLoop]: Abstraction has 3426 states and 4885 transitions. [2020-12-22 08:57:28,539 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 08:57:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4885 transitions. [2020-12-22 08:57:28,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-22 08:57:28,546 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:28,546 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:28,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:57:28,547 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:28,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:28,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1267119622, now seen corresponding path program 1 times [2020-12-22 08:57:28,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:28,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256529151] [2020-12-22 08:57:28,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:28,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:28,965 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 08:57:28,965 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256529151] [2020-12-22 08:57:28,965 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:28,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:57:28,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888864732] [2020-12-22 08:57:28,966 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:57:28,966 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:28,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:57:28,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:57:28,967 INFO L87 Difference]: Start difference. First operand 3426 states and 4885 transitions. Second operand 11 states. [2020-12-22 08:57:37,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:37,516 INFO L93 Difference]: Finished difference Result 19727 states and 29296 transitions. [2020-12-22 08:57:37,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:57:37,517 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 109 [2020-12-22 08:57:37,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:37,544 INFO L225 Difference]: With dead ends: 19727 [2020-12-22 08:57:37,545 INFO L226 Difference]: Without dead ends: 18366 [2020-12-22 08:57:37,550 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:57:37,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18366 states. [2020-12-22 08:57:38,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18366 to 3430. [2020-12-22 08:57:38,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3430 states. [2020-12-22 08:57:38,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4889 transitions. [2020-12-22 08:57:38,029 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4889 transitions. Word has length 109 [2020-12-22 08:57:38,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:38,029 INFO L481 AbstractCegarLoop]: Abstraction has 3430 states and 4889 transitions. [2020-12-22 08:57:38,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:57:38,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4889 transitions. [2020-12-22 08:57:38,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-22 08:57:38,034 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:38,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:38,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:57:38,034 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:38,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:38,035 INFO L82 PathProgramCache]: Analyzing trace with hash -604463307, now seen corresponding path program 1 times [2020-12-22 08:57:38,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:38,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823118359] [2020-12-22 08:57:38,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:38,243 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 08:57:38,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823118359] [2020-12-22 08:57:38,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:38,244 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:38,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582391800] [2020-12-22 08:57:38,244 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:38,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:38,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:38,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:38,245 INFO L87 Difference]: Start difference. First operand 3430 states and 4889 transitions. Second operand 9 states. [2020-12-22 08:57:42,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:42,850 INFO L93 Difference]: Finished difference Result 9744 states and 14296 transitions. [2020-12-22 08:57:42,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:57:42,850 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-12-22 08:57:42,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:42,870 INFO L225 Difference]: With dead ends: 9744 [2020-12-22 08:57:42,871 INFO L226 Difference]: Without dead ends: 8391 [2020-12-22 08:57:42,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:57:42,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2020-12-22 08:57:43,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 3430. [2020-12-22 08:57:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3430 states. [2020-12-22 08:57:43,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4888 transitions. [2020-12-22 08:57:43,449 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4888 transitions. Word has length 109 [2020-12-22 08:57:43,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:43,449 INFO L481 AbstractCegarLoop]: Abstraction has 3430 states and 4888 transitions. [2020-12-22 08:57:43,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:57:43,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4888 transitions. [2020-12-22 08:57:43,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-22 08:57:43,453 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:43,454 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:43,454 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:57:43,454 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:43,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:43,455 INFO L82 PathProgramCache]: Analyzing trace with hash 70295, now seen corresponding path program 1 times [2020-12-22 08:57:43,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:43,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77857115] [2020-12-22 08:57:43,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:43,737 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 08:57:43,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77857115] [2020-12-22 08:57:43,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:43,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:57:43,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368537431] [2020-12-22 08:57:43,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:57:43,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:43,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:57:43,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:57:43,740 INFO L87 Difference]: Start difference. First operand 3430 states and 4888 transitions. Second operand 11 states. [2020-12-22 08:57:55,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:57:55,228 INFO L93 Difference]: Finished difference Result 27555 states and 40908 transitions. [2020-12-22 08:57:55,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 08:57:55,228 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 109 [2020-12-22 08:57:55,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:57:55,254 INFO L225 Difference]: With dead ends: 27555 [2020-12-22 08:57:55,254 INFO L226 Difference]: Without dead ends: 25986 [2020-12-22 08:57:55,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=374, Invalid=1186, Unknown=0, NotChecked=0, Total=1560 [2020-12-22 08:57:55,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25986 states. [2020-12-22 08:57:56,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25986 to 3434. [2020-12-22 08:57:56,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-12-22 08:57:56,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4892 transitions. [2020-12-22 08:57:56,289 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4892 transitions. Word has length 109 [2020-12-22 08:57:56,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:57:56,289 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 4892 transitions. [2020-12-22 08:57:56,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:57:56,289 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4892 transitions. [2020-12-22 08:57:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-22 08:57:56,293 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:57:56,294 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:57:56,294 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 08:57:56,294 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:57:56,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:57:56,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1406819915, now seen corresponding path program 1 times [2020-12-22 08:57:56,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:57:56,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567540159] [2020-12-22 08:57:56,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:57:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:57:56,495 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 08:57:56,495 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567540159] [2020-12-22 08:57:56,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:57:56,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:57:56,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711461792] [2020-12-22 08:57:56,496 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:57:56,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:57:56,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:57:56,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:57:56,497 INFO L87 Difference]: Start difference. First operand 3434 states and 4892 transitions. Second operand 9 states. [2020-12-22 08:58:01,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:01,791 INFO L93 Difference]: Finished difference Result 9768 states and 14322 transitions. [2020-12-22 08:58:01,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:01,791 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-12-22 08:58:01,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:01,798 INFO L225 Difference]: With dead ends: 9768 [2020-12-22 08:58:01,798 INFO L226 Difference]: Without dead ends: 8395 [2020-12-22 08:58:01,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:58:01,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8395 states. [2020-12-22 08:58:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8395 to 3434. [2020-12-22 08:58:02,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-12-22 08:58:02,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4891 transitions. [2020-12-22 08:58:02,373 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4891 transitions. Word has length 109 [2020-12-22 08:58:02,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:02,373 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 4891 transitions. [2020-12-22 08:58:02,373 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:02,373 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4891 transitions. [2020-12-22 08:58:02,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-22 08:58:02,377 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:02,377 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:02,377 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 08:58:02,378 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:02,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:02,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1683727184, now seen corresponding path program 1 times [2020-12-22 08:58:02,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:02,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957481373] [2020-12-22 08:58:02,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:02,586 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 08:58:02,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957481373] [2020-12-22 08:58:02,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:02,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:02,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87239736] [2020-12-22 08:58:02,588 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:02,588 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:02,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:02,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:02,589 INFO L87 Difference]: Start difference. First operand 3434 states and 4891 transitions. Second operand 9 states. [2020-12-22 08:58:07,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:07,483 INFO L93 Difference]: Finished difference Result 10000 states and 14641 transitions. [2020-12-22 08:58:07,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:07,483 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-12-22 08:58:07,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:07,491 INFO L225 Difference]: With dead ends: 10000 [2020-12-22 08:58:07,492 INFO L226 Difference]: Without dead ends: 8507 [2020-12-22 08:58:07,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:58:07,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8507 states. [2020-12-22 08:58:07,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8507 to 3434. [2020-12-22 08:58:07,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-12-22 08:58:08,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4890 transitions. [2020-12-22 08:58:08,003 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4890 transitions. Word has length 109 [2020-12-22 08:58:08,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:08,003 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 4890 transitions. [2020-12-22 08:58:08,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:08,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4890 transitions. [2020-12-22 08:58:08,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-22 08:58:08,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:08,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:08,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 08:58:08,006 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:08,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:08,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1204490492, now seen corresponding path program 1 times [2020-12-22 08:58:08,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:08,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393400595] [2020-12-22 08:58:08,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:08,203 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 08:58:08,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393400595] [2020-12-22 08:58:08,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:08,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:08,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533404899] [2020-12-22 08:58:08,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:08,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:08,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:08,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:08,206 INFO L87 Difference]: Start difference. First operand 3434 states and 4890 transitions. Second operand 9 states. [2020-12-22 08:58:13,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:13,120 INFO L93 Difference]: Finished difference Result 9756 states and 14304 transitions. [2020-12-22 08:58:13,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:13,120 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-12-22 08:58:13,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:13,128 INFO L225 Difference]: With dead ends: 9756 [2020-12-22 08:58:13,128 INFO L226 Difference]: Without dead ends: 8395 [2020-12-22 08:58:13,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:58:13,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8395 states. [2020-12-22 08:58:13,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8395 to 3434. [2020-12-22 08:58:13,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-12-22 08:58:13,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4889 transitions. [2020-12-22 08:58:13,629 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4889 transitions. Word has length 109 [2020-12-22 08:58:13,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:13,629 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 4889 transitions. [2020-12-22 08:58:13,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:13,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4889 transitions. [2020-12-22 08:58:13,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-22 08:58:13,632 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:13,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:13,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 08:58:13,632 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:13,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:13,633 INFO L82 PathProgramCache]: Analyzing trace with hash -59557012, now seen corresponding path program 1 times [2020-12-22 08:58:13,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:13,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016726682] [2020-12-22 08:58:13,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:13,851 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 08:58:13,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016726682] [2020-12-22 08:58:13,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:13,852 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:13,852 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408616891] [2020-12-22 08:58:13,852 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:13,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:13,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:13,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:13,853 INFO L87 Difference]: Start difference. First operand 3434 states and 4889 transitions. Second operand 9 states. [2020-12-22 08:58:17,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:17,591 INFO L93 Difference]: Finished difference Result 7284 states and 10628 transitions. [2020-12-22 08:58:17,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 08:58:17,591 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2020-12-22 08:58:17,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:17,595 INFO L225 Difference]: With dead ends: 7284 [2020-12-22 08:58:17,595 INFO L226 Difference]: Without dead ends: 5386 [2020-12-22 08:58:17,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=266, Unknown=0, NotChecked=0, Total=380 [2020-12-22 08:58:17,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5386 states. [2020-12-22 08:58:18,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5386 to 3434. [2020-12-22 08:58:18,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-12-22 08:58:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4888 transitions. [2020-12-22 08:58:18,083 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4888 transitions. Word has length 109 [2020-12-22 08:58:18,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:18,083 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 4888 transitions. [2020-12-22 08:58:18,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4888 transitions. [2020-12-22 08:58:18,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 08:58:18,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:18,086 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:18,086 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 08:58:18,086 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:18,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:18,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1817965001, now seen corresponding path program 1 times [2020-12-22 08:58:18,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:18,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016924953] [2020-12-22 08:58:18,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:18,293 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 08:58:18,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016924953] [2020-12-22 08:58:18,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:18,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:18,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054085028] [2020-12-22 08:58:18,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:18,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:18,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:18,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:18,303 INFO L87 Difference]: Start difference. First operand 3434 states and 4888 transitions. Second operand 9 states. [2020-12-22 08:58:23,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:23,938 INFO L93 Difference]: Finished difference Result 10076 states and 14743 transitions. [2020-12-22 08:58:23,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:23,939 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-12-22 08:58:23,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:23,945 INFO L225 Difference]: With dead ends: 10076 [2020-12-22 08:58:23,946 INFO L226 Difference]: Without dead ends: 8507 [2020-12-22 08:58:23,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:58:23,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8507 states. [2020-12-22 08:58:24,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8507 to 3430. [2020-12-22 08:58:24,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3430 states. [2020-12-22 08:58:24,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4883 transitions. [2020-12-22 08:58:24,490 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4883 transitions. Word has length 110 [2020-12-22 08:58:24,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:24,491 INFO L481 AbstractCegarLoop]: Abstraction has 3430 states and 4883 transitions. [2020-12-22 08:58:24,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:24,491 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4883 transitions. [2020-12-22 08:58:24,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-12-22 08:58:24,494 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:24,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:24,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 08:58:24,495 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:24,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:24,495 INFO L82 PathProgramCache]: Analyzing trace with hash -599007501, now seen corresponding path program 1 times [2020-12-22 08:58:24,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:24,495 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004113169] [2020-12-22 08:58:24,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:24,687 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 08:58:24,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004113169] [2020-12-22 08:58:24,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:24,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:24,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139002804] [2020-12-22 08:58:24,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:24,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:24,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:24,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:24,690 INFO L87 Difference]: Start difference. First operand 3430 states and 4883 transitions. Second operand 9 states. [2020-12-22 08:58:30,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:30,031 INFO L93 Difference]: Finished difference Result 9752 states and 14297 transitions. [2020-12-22 08:58:30,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:58:30,032 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 110 [2020-12-22 08:58:30,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:30,039 INFO L225 Difference]: With dead ends: 9752 [2020-12-22 08:58:30,039 INFO L226 Difference]: Without dead ends: 8391 [2020-12-22 08:58:30,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 08:58:30,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2020-12-22 08:58:30,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 3426. [2020-12-22 08:58:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3426 states. [2020-12-22 08:58:30,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4878 transitions. [2020-12-22 08:58:30,636 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4878 transitions. Word has length 110 [2020-12-22 08:58:30,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:30,637 INFO L481 AbstractCegarLoop]: Abstraction has 3426 states and 4878 transitions. [2020-12-22 08:58:30,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4878 transitions. [2020-12-22 08:58:30,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 08:58:30,639 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:30,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:30,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 08:58:30,640 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:30,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:30,641 INFO L82 PathProgramCache]: Analyzing trace with hash 141096883, now seen corresponding path program 1 times [2020-12-22 08:58:30,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:30,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680389938] [2020-12-22 08:58:30,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:30,977 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 08:58:30,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680389938] [2020-12-22 08:58:30,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:30,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:58:30,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793884805] [2020-12-22 08:58:30,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:58:30,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:30,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:58:30,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:58:30,979 INFO L87 Difference]: Start difference. First operand 3426 states and 4878 transitions. Second operand 12 states. [2020-12-22 08:58:40,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:40,988 INFO L93 Difference]: Finished difference Result 12118 states and 17848 transitions. [2020-12-22 08:58:40,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:58:40,988 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-12-22 08:58:40,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:40,998 INFO L225 Difference]: With dead ends: 12118 [2020-12-22 08:58:40,998 INFO L226 Difference]: Without dead ends: 10808 [2020-12-22 08:58:41,001 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:58:41,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10808 states. [2020-12-22 08:58:41,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10808 to 3426. [2020-12-22 08:58:41,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3426 states. [2020-12-22 08:58:41,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4877 transitions. [2020-12-22 08:58:41,607 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4877 transitions. Word has length 111 [2020-12-22 08:58:41,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:41,607 INFO L481 AbstractCegarLoop]: Abstraction has 3426 states and 4877 transitions. [2020-12-22 08:58:41,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:58:41,607 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4877 transitions. [2020-12-22 08:58:41,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 08:58:41,610 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:41,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:41,610 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 08:58:41,610 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:41,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:41,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1756608252, now seen corresponding path program 1 times [2020-12-22 08:58:41,611 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:41,611 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930178625] [2020-12-22 08:58:41,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:41,872 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 08:58:41,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930178625] [2020-12-22 08:58:41,872 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:41,872 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:41,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951678368] [2020-12-22 08:58:41,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:41,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:41,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:41,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:41,874 INFO L87 Difference]: Start difference. First operand 3426 states and 4877 transitions. Second operand 9 states. [2020-12-22 08:58:48,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:48,078 INFO L93 Difference]: Finished difference Result 9985 states and 14781 transitions. [2020-12-22 08:58:48,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:58:48,079 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-22 08:58:48,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:48,086 INFO L225 Difference]: With dead ends: 9985 [2020-12-22 08:58:48,086 INFO L226 Difference]: Without dead ends: 8680 [2020-12-22 08:58:48,088 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:58:48,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8680 states. [2020-12-22 08:58:48,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8680 to 3426. [2020-12-22 08:58:48,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3426 states. [2020-12-22 08:58:48,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4876 transitions. [2020-12-22 08:58:48,699 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4876 transitions. Word has length 111 [2020-12-22 08:58:48,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:48,699 INFO L481 AbstractCegarLoop]: Abstraction has 3426 states and 4876 transitions. [2020-12-22 08:58:48,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4876 transitions. [2020-12-22 08:58:48,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 08:58:48,701 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:48,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:48,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 08:58:48,702 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:48,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:48,702 INFO L82 PathProgramCache]: Analyzing trace with hash 818178437, now seen corresponding path program 1 times [2020-12-22 08:58:48,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:48,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150172483] [2020-12-22 08:58:48,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:48,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:48,916 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 08:58:48,916 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150172483] [2020-12-22 08:58:48,916 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:48,916 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:48,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890194065] [2020-12-22 08:58:48,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:48,917 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:48,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:48,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:48,918 INFO L87 Difference]: Start difference. First operand 3426 states and 4876 transitions. Second operand 9 states. [2020-12-22 08:58:55,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:58:55,025 INFO L93 Difference]: Finished difference Result 9981 states and 14776 transitions. [2020-12-22 08:58:55,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:58:55,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-22 08:58:55,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:58:55,034 INFO L225 Difference]: With dead ends: 9981 [2020-12-22 08:58:55,034 INFO L226 Difference]: Without dead ends: 8680 [2020-12-22 08:58:55,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:58:55,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8680 states. [2020-12-22 08:58:55,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8680 to 3426. [2020-12-22 08:58:55,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3426 states. [2020-12-22 08:58:55,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4875 transitions. [2020-12-22 08:58:55,658 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4875 transitions. Word has length 111 [2020-12-22 08:58:55,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:58:55,658 INFO L481 AbstractCegarLoop]: Abstraction has 3426 states and 4875 transitions. [2020-12-22 08:58:55,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:58:55,658 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4875 transitions. [2020-12-22 08:58:55,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 08:58:55,661 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:58:55,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:58:55,662 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 08:58:55,662 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:58:55,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:58:55,662 INFO L82 PathProgramCache]: Analyzing trace with hash 265888723, now seen corresponding path program 1 times [2020-12-22 08:58:55,662 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:58:55,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311812128] [2020-12-22 08:58:55,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:58:55,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:58:55,874 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 08:58:55,875 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311812128] [2020-12-22 08:58:55,875 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:58:55,875 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:58:55,875 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154729297] [2020-12-22 08:58:55,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:58:55,876 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:58:55,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:58:55,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:58:55,877 INFO L87 Difference]: Start difference. First operand 3426 states and 4875 transitions. Second operand 9 states. [2020-12-22 08:59:01,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:01,377 INFO L93 Difference]: Finished difference Result 7460 states and 10921 transitions. [2020-12-22 08:59:01,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 08:59:01,378 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-22 08:59:01,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:01,383 INFO L225 Difference]: With dead ends: 7460 [2020-12-22 08:59:01,383 INFO L226 Difference]: Without dead ends: 6132 [2020-12-22 08:59:01,385 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 08:59:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6132 states. [2020-12-22 08:59:02,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6132 to 3426. [2020-12-22 08:59:02,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3426 states. [2020-12-22 08:59:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4873 transitions. [2020-12-22 08:59:02,092 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4873 transitions. Word has length 111 [2020-12-22 08:59:02,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:02,092 INFO L481 AbstractCegarLoop]: Abstraction has 3426 states and 4873 transitions. [2020-12-22 08:59:02,092 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:02,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4873 transitions. [2020-12-22 08:59:02,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 08:59:02,096 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:02,096 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:59:02,097 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 08:59:02,097 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:02,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:02,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1781913043, now seen corresponding path program 1 times [2020-12-22 08:59:02,098 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:02,098 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667983437] [2020-12-22 08:59:02,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:02,298 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 08:59:02,299 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667983437] [2020-12-22 08:59:02,299 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:02,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:59:02,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637019005] [2020-12-22 08:59:02,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:59:02,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:02,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:59:02,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:59:02,300 INFO L87 Difference]: Start difference. First operand 3426 states and 4873 transitions. Second operand 9 states. [2020-12-22 08:59:08,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:08,827 INFO L93 Difference]: Finished difference Result 9994 states and 14787 transitions. [2020-12-22 08:59:08,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:59:08,828 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-22 08:59:08,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:08,835 INFO L225 Difference]: With dead ends: 9994 [2020-12-22 08:59:08,835 INFO L226 Difference]: Without dead ends: 8680 [2020-12-22 08:59:08,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:59:08,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8680 states. [2020-12-22 08:59:09,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8680 to 3426. [2020-12-22 08:59:09,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3426 states. [2020-12-22 08:59:09,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4872 transitions. [2020-12-22 08:59:09,530 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4872 transitions. Word has length 111 [2020-12-22 08:59:09,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:09,530 INFO L481 AbstractCegarLoop]: Abstraction has 3426 states and 4872 transitions. [2020-12-22 08:59:09,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:09,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4872 transitions. [2020-12-22 08:59:09,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 08:59:09,533 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:09,534 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:09,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 08:59:09,535 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:09,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:09,535 INFO L82 PathProgramCache]: Analyzing trace with hash 484023005, now seen corresponding path program 1 times [2020-12-22 08:59:09,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:09,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638350049] [2020-12-22 08:59:09,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:09,837 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 08:59:09,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638350049] [2020-12-22 08:59:09,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:09,838 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:59:09,838 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265346841] [2020-12-22 08:59:09,838 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:59:09,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:09,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:59:09,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:59:09,839 INFO L87 Difference]: Start difference. First operand 3426 states and 4872 transitions. Second operand 11 states. [2020-12-22 08:59:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:22,514 INFO L93 Difference]: Finished difference Result 19773 states and 29335 transitions. [2020-12-22 08:59:22,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:59:22,514 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 111 [2020-12-22 08:59:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:22,531 INFO L225 Difference]: With dead ends: 19773 [2020-12-22 08:59:22,531 INFO L226 Difference]: Without dead ends: 18389 [2020-12-22 08:59:22,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 08:59:22,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18389 states. [2020-12-22 08:59:23,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18389 to 3430. [2020-12-22 08:59:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3430 states. [2020-12-22 08:59:23,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4876 transitions. [2020-12-22 08:59:23,336 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4876 transitions. Word has length 111 [2020-12-22 08:59:23,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:23,336 INFO L481 AbstractCegarLoop]: Abstraction has 3430 states and 4876 transitions. [2020-12-22 08:59:23,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 08:59:23,336 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4876 transitions. [2020-12-22 08:59:23,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 08:59:23,339 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:23,339 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:23,339 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 08:59:23,339 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:23,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1272512024, now seen corresponding path program 1 times [2020-12-22 08:59:23,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:23,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433813930] [2020-12-22 08:59:23,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:23,535 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 08:59:23,535 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433813930] [2020-12-22 08:59:23,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:23,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:59:23,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586927092] [2020-12-22 08:59:23,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:59:23,536 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:23,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:59:23,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:59:23,537 INFO L87 Difference]: Start difference. First operand 3430 states and 4876 transitions. Second operand 9 states. [2020-12-22 08:59:30,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:30,936 INFO L93 Difference]: Finished difference Result 9989 states and 14780 transitions. [2020-12-22 08:59:30,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:59:30,936 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-22 08:59:30,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:30,943 INFO L225 Difference]: With dead ends: 9989 [2020-12-22 08:59:30,943 INFO L226 Difference]: Without dead ends: 8684 [2020-12-22 08:59:30,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:59:30,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8684 states. [2020-12-22 08:59:31,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8684 to 3430. [2020-12-22 08:59:31,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3430 states. [2020-12-22 08:59:31,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4875 transitions. [2020-12-22 08:59:31,646 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4875 transitions. Word has length 111 [2020-12-22 08:59:31,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:31,646 INFO L481 AbstractCegarLoop]: Abstraction has 3430 states and 4875 transitions. [2020-12-22 08:59:31,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:31,646 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4875 transitions. [2020-12-22 08:59:31,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 08:59:31,649 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:31,649 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:31,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 08:59:31,649 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:31,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:31,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1406535780, now seen corresponding path program 1 times [2020-12-22 08:59:31,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:31,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471715396] [2020-12-22 08:59:31,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:31,959 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 08:59:31,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471715396] [2020-12-22 08:59:31,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:31,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 08:59:31,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516617030] [2020-12-22 08:59:31,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 08:59:31,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:31,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 08:59:31,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-12-22 08:59:31,962 INFO L87 Difference]: Start difference. First operand 3430 states and 4875 transitions. Second operand 12 states. [2020-12-22 08:59:43,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:43,521 INFO L93 Difference]: Finished difference Result 12130 states and 17857 transitions. [2020-12-22 08:59:43,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 08:59:43,522 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 111 [2020-12-22 08:59:43,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:43,530 INFO L225 Difference]: With dead ends: 12130 [2020-12-22 08:59:43,531 INFO L226 Difference]: Without dead ends: 10816 [2020-12-22 08:59:43,533 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=300, Invalid=822, Unknown=0, NotChecked=0, Total=1122 [2020-12-22 08:59:43,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10816 states. [2020-12-22 08:59:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10816 to 3430. [2020-12-22 08:59:44,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3430 states. [2020-12-22 08:59:44,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4874 transitions. [2020-12-22 08:59:44,316 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4874 transitions. Word has length 111 [2020-12-22 08:59:44,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:44,316 INFO L481 AbstractCegarLoop]: Abstraction has 3430 states and 4874 transitions. [2020-12-22 08:59:44,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 08:59:44,316 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4874 transitions. [2020-12-22 08:59:44,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 08:59:44,319 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:44,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:44,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 08:59:44,319 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:44,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:44,319 INFO L82 PathProgramCache]: Analyzing trace with hash 573484172, now seen corresponding path program 1 times [2020-12-22 08:59:44,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:44,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352692705] [2020-12-22 08:59:44,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:44,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:44,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:59:44,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352692705] [2020-12-22 08:59:44,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:44,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 08:59:44,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635563987] [2020-12-22 08:59:44,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 08:59:44,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:44,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 08:59:44,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 08:59:44,553 INFO L87 Difference]: Start difference. First operand 3430 states and 4874 transitions. Second operand 9 states. [2020-12-22 08:59:52,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:59:52,016 INFO L93 Difference]: Finished difference Result 9994 states and 14782 transitions. [2020-12-22 08:59:52,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 08:59:52,017 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-22 08:59:52,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:59:52,024 INFO L225 Difference]: With dead ends: 9994 [2020-12-22 08:59:52,024 INFO L226 Difference]: Without dead ends: 8684 [2020-12-22 08:59:52,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 08:59:52,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8684 states. [2020-12-22 08:59:52,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8684 to 3430. [2020-12-22 08:59:52,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3430 states. [2020-12-22 08:59:52,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3430 states to 3430 states and 4873 transitions. [2020-12-22 08:59:52,772 INFO L78 Accepts]: Start accepts. Automaton has 3430 states and 4873 transitions. Word has length 111 [2020-12-22 08:59:52,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:59:52,773 INFO L481 AbstractCegarLoop]: Abstraction has 3430 states and 4873 transitions. [2020-12-22 08:59:52,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 08:59:52,773 INFO L276 IsEmpty]: Start isEmpty. Operand 3430 states and 4873 transitions. [2020-12-22 08:59:52,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 08:59:52,777 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:59:52,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:59:52,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 08:59:52,777 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:59:52,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:59:52,778 INFO L82 PathProgramCache]: Analyzing trace with hash -724405866, now seen corresponding path program 1 times [2020-12-22 08:59:52,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:59:52,778 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497141769] [2020-12-22 08:59:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:59:52,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:59:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:59:53,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497141769] [2020-12-22 08:59:53,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:59:53,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 08:59:53,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423446143] [2020-12-22 08:59:53,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 08:59:53,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:59:53,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 08:59:53,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 08:59:53,084 INFO L87 Difference]: Start difference. First operand 3430 states and 4873 transitions. Second operand 11 states. [2020-12-22 09:00:07,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:07,866 INFO L93 Difference]: Finished difference Result 19725 states and 29260 transitions. [2020-12-22 09:00:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-22 09:00:07,867 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 111 [2020-12-22 09:00:07,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:07,884 INFO L225 Difference]: With dead ends: 19725 [2020-12-22 09:00:07,885 INFO L226 Difference]: Without dead ends: 18365 [2020-12-22 09:00:07,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=249, Invalid=743, Unknown=0, NotChecked=0, Total=992 [2020-12-22 09:00:07,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18365 states. [2020-12-22 09:00:08,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18365 to 3434. [2020-12-22 09:00:08,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-12-22 09:00:08,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4877 transitions. [2020-12-22 09:00:08,730 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4877 transitions. Word has length 111 [2020-12-22 09:00:08,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:08,730 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 4877 transitions. [2020-12-22 09:00:08,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 09:00:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4877 transitions. [2020-12-22 09:00:08,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 09:00:08,733 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:08,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:08,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 09:00:08,734 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:08,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:08,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1814914143, now seen corresponding path program 1 times [2020-12-22 09:00:08,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:08,734 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797831717] [2020-12-22 09:00:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:08,993 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 09:00:08,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797831717] [2020-12-22 09:00:08,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:08,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 09:00:08,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091593861] [2020-12-22 09:00:08,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 09:00:08,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:08,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 09:00:08,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 09:00:08,996 INFO L87 Difference]: Start difference. First operand 3434 states and 4877 transitions. Second operand 9 states. [2020-12-22 09:00:15,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:15,125 INFO L93 Difference]: Finished difference Result 7445 states and 10891 transitions. [2020-12-22 09:00:15,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 09:00:15,126 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-22 09:00:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:15,130 INFO L225 Difference]: With dead ends: 7445 [2020-12-22 09:00:15,130 INFO L226 Difference]: Without dead ends: 6140 [2020-12-22 09:00:15,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 09:00:15,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2020-12-22 09:00:15,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 3434. [2020-12-22 09:00:15,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-12-22 09:00:15,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4876 transitions. [2020-12-22 09:00:15,931 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4876 transitions. Word has length 111 [2020-12-22 09:00:15,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:15,931 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 4876 transitions. [2020-12-22 09:00:15,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 09:00:15,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4876 transitions. [2020-12-22 09:00:15,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 09:00:15,934 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:15,934 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:15,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-22 09:00:15,934 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:15,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:15,935 INFO L82 PathProgramCache]: Analyzing trace with hash 198106909, now seen corresponding path program 1 times [2020-12-22 09:00:15,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:15,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271402132] [2020-12-22 09:00:15,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:16,136 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 09:00:16,137 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271402132] [2020-12-22 09:00:16,137 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:16,137 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 09:00:16,137 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866238834] [2020-12-22 09:00:16,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 09:00:16,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:16,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 09:00:16,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 09:00:16,138 INFO L87 Difference]: Start difference. First operand 3434 states and 4876 transitions. Second operand 9 states. [2020-12-22 09:00:22,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:22,444 INFO L93 Difference]: Finished difference Result 7472 states and 10925 transitions. [2020-12-22 09:00:22,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 09:00:22,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-22 09:00:22,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:22,450 INFO L225 Difference]: With dead ends: 7472 [2020-12-22 09:00:22,450 INFO L226 Difference]: Without dead ends: 6140 [2020-12-22 09:00:22,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=139, Invalid=323, Unknown=0, NotChecked=0, Total=462 [2020-12-22 09:00:22,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6140 states. [2020-12-22 09:00:23,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6140 to 3434. [2020-12-22 09:00:23,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-12-22 09:00:23,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4874 transitions. [2020-12-22 09:00:23,283 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4874 transitions. Word has length 111 [2020-12-22 09:00:23,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:23,283 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 4874 transitions. [2020-12-22 09:00:23,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 09:00:23,283 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4874 transitions. [2020-12-22 09:00:23,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 09:00:23,286 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:23,286 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:23,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-22 09:00:23,287 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:23,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:23,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1014273453, now seen corresponding path program 1 times [2020-12-22 09:00:23,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:23,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146657798] [2020-12-22 09:00:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:23,491 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 09:00:23,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146657798] [2020-12-22 09:00:23,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:23,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 09:00:23,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837490569] [2020-12-22 09:00:23,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 09:00:23,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:23,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 09:00:23,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 09:00:23,493 INFO L87 Difference]: Start difference. First operand 3434 states and 4874 transitions. Second operand 9 states. [2020-12-22 09:00:30,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:30,781 INFO L93 Difference]: Finished difference Result 10002 states and 14788 transitions. [2020-12-22 09:00:30,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-22 09:00:30,782 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-22 09:00:30,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:30,792 INFO L225 Difference]: With dead ends: 10002 [2020-12-22 09:00:30,792 INFO L226 Difference]: Without dead ends: 8688 [2020-12-22 09:00:30,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=437, Unknown=0, NotChecked=0, Total=600 [2020-12-22 09:00:30,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8688 states. [2020-12-22 09:00:31,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8688 to 3434. [2020-12-22 09:00:31,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-12-22 09:00:31,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4873 transitions. [2020-12-22 09:00:31,694 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4873 transitions. Word has length 111 [2020-12-22 09:00:31,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:31,695 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 4873 transitions. [2020-12-22 09:00:31,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 09:00:31,695 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4873 transitions. [2020-12-22 09:00:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 09:00:31,698 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:31,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:31,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-22 09:00:31,698 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:31,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:31,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1982803805, now seen corresponding path program 1 times [2020-12-22 09:00:31,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:31,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936238114] [2020-12-22 09:00:31,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:31,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:31,867 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 09:00:31,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936238114] [2020-12-22 09:00:31,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:31,867 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 09:00:31,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958047548] [2020-12-22 09:00:31,868 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 09:00:31,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:31,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 09:00:31,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-12-22 09:00:31,868 INFO L87 Difference]: Start difference. First operand 3434 states and 4873 transitions. Second operand 9 states. [2020-12-22 09:00:39,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:00:39,070 INFO L93 Difference]: Finished difference Result 9775 states and 14305 transitions. [2020-12-22 09:00:39,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 09:00:39,071 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2020-12-22 09:00:39,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:00:39,080 INFO L225 Difference]: With dead ends: 9775 [2020-12-22 09:00:39,081 INFO L226 Difference]: Without dead ends: 8391 [2020-12-22 09:00:39,084 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2020-12-22 09:00:39,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2020-12-22 09:00:39,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 3434. [2020-12-22 09:00:39,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-12-22 09:00:39,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 4872 transitions. [2020-12-22 09:00:39,942 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 4872 transitions. Word has length 111 [2020-12-22 09:00:39,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:00:39,943 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 4872 transitions. [2020-12-22 09:00:39,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 09:00:39,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 4872 transitions. [2020-12-22 09:00:39,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-12-22 09:00:39,945 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:00:39,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:00:39,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-22 09:00:39,945 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:00:39,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:00:39,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1649678164, now seen corresponding path program 1 times [2020-12-22 09:00:39,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:00:39,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442819513] [2020-12-22 09:00:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:00:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:00:40,213 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 09:00:40,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442819513] [2020-12-22 09:00:40,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:00:40,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 09:00:40,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079600640] [2020-12-22 09:00:40,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 09:00:40,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:00:40,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 09:00:40,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-12-22 09:00:40,214 INFO L87 Difference]: Start difference. First operand 3434 states and 4872 transitions. Second operand 11 states. [2020-12-22 09:00:40,801 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35