/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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:09:31,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:09:31,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:09:31,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:09:31,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:09:31,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:09:31,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:09:31,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:09:31,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:09:31,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:09:31,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:09:31,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:09:31,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:09:31,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:09:31,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:09:31,499 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:09:31,500 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:09:31,502 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:09:31,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:09:31,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:09:31,508 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:09:31,510 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:09:31,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:09:31,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:09:31,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:09:31,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:09:31,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:09:31,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:09:31,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:09:31,533 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:09:31,533 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:09:31,534 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:09:31,535 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:09:31,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:09:31,537 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:09:31,537 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:09:31,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:09:31,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:09:31,538 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:09:31,539 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:09:31,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:09:31,541 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:09:31,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:09:31,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:09:31,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:09:31,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:09:31,594 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:09:31,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:09:31,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:09:31,594 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:09:31,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:09:31,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:09:31,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:09:31,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:09:31,596 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:09:31,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:09:31,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:09:31,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:09:31,597 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:09:31,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:09:31,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:09:31,598 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:09:31,598 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:09:31,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:09:31,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:09:31,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:09:31,599 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:09:31,599 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:09:32,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:09:32,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:09:32,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:09:32,050 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:09:32,051 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:09:32,052 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:09:32,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99204f4b3/80fc84be344a405f8eb9edc04ee97a2f/FLAG07f122c73 [2020-12-22 08:09:33,049 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:09:33,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:09:33,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99204f4b3/80fc84be344a405f8eb9edc04ee97a2f/FLAG07f122c73 [2020-12-22 08:09:33,102 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99204f4b3/80fc84be344a405f8eb9edc04ee97a2f [2020-12-22 08:09:33,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:09:33,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:09:33,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:09:33,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:09:33,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:09:33,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:09:33" (1/1) ... [2020-12-22 08:09:33,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a44a9e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:33, skipping insertion in model container [2020-12-22 08:09:33,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:09:33" (1/1) ... [2020-12-22 08:09:33,124 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:09:33,273 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:09:33,911 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31332,31345] [2020-12-22 08:09:33,948 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32222,32235] [2020-12-22 08:09:33,987 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33924,33937] [2020-12-22 08:09:34,030 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35198,35211] [2020-12-22 08:09:34,235 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48435,48448] [2020-12-22 08:09:34,411 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57209,57222] [2020-12-22 08:09:34,433 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[58102,58115] [2020-12-22 08:09:34,480 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[59807,59820] [2020-12-22 08:09:34,500 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60700,60713] [2020-12-22 08:09:34,542 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63217,63230] [2020-12-22 08:09:34,563 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[64110,64123] [2020-12-22 08:09:34,589 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[65815,65828] [2020-12-22 08:09:34,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:09:34,696 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:09:35,025 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31332,31345] [2020-12-22 08:09:35,042 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32222,32235] [2020-12-22 08:09:35,068 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33924,33937] [2020-12-22 08:09:35,093 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35198,35211] [2020-12-22 08:09:35,224 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[48435,48448] [2020-12-22 08:09:35,455 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57209,57222] [2020-12-22 08:09:35,473 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[58102,58115] [2020-12-22 08:09:35,498 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[59807,59820] [2020-12-22 08:09:35,516 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60700,60713] [2020-12-22 08:09:35,556 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63217,63230] [2020-12-22 08:09:35,574 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[64110,64123] [2020-12-22 08:09:35,605 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_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[65815,65828] [2020-12-22 08:09:35,665 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:09:35,705 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:09:35,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35 WrapperNode [2020-12-22 08:09:35,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:09:35,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:09:35,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:09:35,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:09:35,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (1/1) ... [2020-12-22 08:09:35,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (1/1) ... [2020-12-22 08:09:35,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:09:35,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:09:35,866 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:09:35,866 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:09:35,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (1/1) ... [2020-12-22 08:09:35,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (1/1) ... [2020-12-22 08:09:35,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (1/1) ... [2020-12-22 08:09:35,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (1/1) ... [2020-12-22 08:09:35,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (1/1) ... [2020-12-22 08:09:35,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (1/1) ... [2020-12-22 08:09:36,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (1/1) ... [2020-12-22 08:09:36,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:09:36,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:09:36,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:09:36,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:09:36,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (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 08:09:36,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:09:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:09:36,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:09:36,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:09:39,471 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:09:39,472 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:09:39,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:09:39 BoogieIcfgContainer [2020-12-22 08:09:39,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:09:39,477 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:09:39,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:09:39,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:09:39,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:09:33" (1/3) ... [2020-12-22 08:09:39,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cb8acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:09:39, skipping insertion in model container [2020-12-22 08:09:39,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:09:35" (2/3) ... [2020-12-22 08:09:39,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72cb8acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:09:39, skipping insertion in model container [2020-12-22 08:09:39,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:09:39" (3/3) ... [2020-12-22 08:09:39,484 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:09:39,491 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:09:39,497 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-22 08:09:39,516 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-22 08:09:39,552 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:09:39,552 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:09:39,552 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:09:39,552 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:09:39,552 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:09:39,552 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:09:39,553 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:09:39,553 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:09:39,615 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states. [2020-12-22 08:09:39,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:09:39,650 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:39,654 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:39,655 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:39,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:39,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1509149124, now seen corresponding path program 1 times [2020-12-22 08:09:39,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:39,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572546989] [2020-12-22 08:09:39,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:40,803 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 08:09:40,803 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572546989] [2020-12-22 08:09:40,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:40,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:40,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178691595] [2020-12-22 08:09:40,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:40,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:40,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:40,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:40,835 INFO L87 Difference]: Start difference. First operand 929 states. Second operand 3 states. [2020-12-22 08:09:41,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:41,232 INFO L93 Difference]: Finished difference Result 1586 states and 2830 transitions. [2020-12-22 08:09:41,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:41,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-12-22 08:09:41,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:41,295 INFO L225 Difference]: With dead ends: 1586 [2020-12-22 08:09:41,295 INFO L226 Difference]: Without dead ends: 1331 [2020-12-22 08:09:41,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:41,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2020-12-22 08:09:41,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1329. [2020-12-22 08:09:41,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1329 states. [2020-12-22 08:09:41,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 2025 transitions. [2020-12-22 08:09:41,461 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 2025 transitions. Word has length 304 [2020-12-22 08:09:41,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:41,465 INFO L481 AbstractCegarLoop]: Abstraction has 1329 states and 2025 transitions. [2020-12-22 08:09:41,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 2025 transitions. [2020-12-22 08:09:41,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:09:41,476 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:41,477 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:41,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:09:41,478 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:41,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:41,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1628624792, now seen corresponding path program 1 times [2020-12-22 08:09:41,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:41,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371693664] [2020-12-22 08:09:41,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:41,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:42,072 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 08:09:42,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371693664] [2020-12-22 08:09:42,075 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:42,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:42,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455757213] [2020-12-22 08:09:42,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:42,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:42,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:42,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:42,083 INFO L87 Difference]: Start difference. First operand 1329 states and 2025 transitions. Second operand 3 states. [2020-12-22 08:09:42,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:42,351 INFO L93 Difference]: Finished difference Result 2530 states and 3899 transitions. [2020-12-22 08:09:42,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:42,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-12-22 08:09:42,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:42,367 INFO L225 Difference]: With dead ends: 2530 [2020-12-22 08:09:42,367 INFO L226 Difference]: Without dead ends: 2139 [2020-12-22 08:09:42,373 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:42,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2020-12-22 08:09:42,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2137. [2020-12-22 08:09:42,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2137 states. [2020-12-22 08:09:42,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3267 transitions. [2020-12-22 08:09:42,463 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3267 transitions. Word has length 304 [2020-12-22 08:09:42,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:42,464 INFO L481 AbstractCegarLoop]: Abstraction has 2137 states and 3267 transitions. [2020-12-22 08:09:42,465 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:42,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3267 transitions. [2020-12-22 08:09:42,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:09:42,473 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:42,473 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:42,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:09:42,474 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:42,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:42,476 INFO L82 PathProgramCache]: Analyzing trace with hash 251943448, now seen corresponding path program 1 times [2020-12-22 08:09:42,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:42,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050792279] [2020-12-22 08:09:42,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:42,898 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 08:09:42,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050792279] [2020-12-22 08:09:42,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:42,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:42,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910441475] [2020-12-22 08:09:42,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:42,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:42,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:42,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:42,912 INFO L87 Difference]: Start difference. First operand 2137 states and 3267 transitions. Second operand 3 states. [2020-12-22 08:09:43,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:43,356 INFO L93 Difference]: Finished difference Result 4396 states and 6808 transitions. [2020-12-22 08:09:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:43,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-12-22 08:09:43,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:43,380 INFO L225 Difference]: With dead ends: 4396 [2020-12-22 08:09:43,380 INFO L226 Difference]: Without dead ends: 3759 [2020-12-22 08:09:43,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:43,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2020-12-22 08:09:43,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3757. [2020-12-22 08:09:43,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3757 states. [2020-12-22 08:09:43,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 5755 transitions. [2020-12-22 08:09:43,528 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 5755 transitions. Word has length 304 [2020-12-22 08:09:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:43,529 INFO L481 AbstractCegarLoop]: Abstraction has 3757 states and 5755 transitions. [2020-12-22 08:09:43,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 5755 transitions. [2020-12-22 08:09:43,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:09:43,539 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:43,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:43,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:09:43,540 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:43,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:43,541 INFO L82 PathProgramCache]: Analyzing trace with hash -511267108, now seen corresponding path program 1 times [2020-12-22 08:09:43,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:43,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962006056] [2020-12-22 08:09:43,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:43,981 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 08:09:43,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962006056] [2020-12-22 08:09:43,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:43,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:43,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933811202] [2020-12-22 08:09:43,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:43,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:43,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:43,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:43,985 INFO L87 Difference]: Start difference. First operand 3757 states and 5755 transitions. Second operand 3 states. [2020-12-22 08:09:44,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:44,444 INFO L93 Difference]: Finished difference Result 8136 states and 12632 transitions. [2020-12-22 08:09:44,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:44,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-12-22 08:09:44,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:44,484 INFO L225 Difference]: With dead ends: 8136 [2020-12-22 08:09:44,484 INFO L226 Difference]: Without dead ends: 7007 [2020-12-22 08:09:44,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:44,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7007 states. [2020-12-22 08:09:44,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7007 to 7005. [2020-12-22 08:09:44,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7005 states. [2020-12-22 08:09:44,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 10739 transitions. [2020-12-22 08:09:44,796 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 10739 transitions. Word has length 304 [2020-12-22 08:09:44,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:44,797 INFO L481 AbstractCegarLoop]: Abstraction has 7005 states and 10739 transitions. [2020-12-22 08:09:44,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:44,797 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 10739 transitions. [2020-12-22 08:09:44,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:09:44,811 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:44,811 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:44,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:09:44,812 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:44,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:44,812 INFO L82 PathProgramCache]: Analyzing trace with hash -511698084, now seen corresponding path program 1 times [2020-12-22 08:09:44,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:44,813 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037683291] [2020-12-22 08:09:44,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:45,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:45,633 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 08:09:45,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037683291] [2020-12-22 08:09:45,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:45,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:09:45,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191234280] [2020-12-22 08:09:45,635 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 08:09:45,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:45,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 08:09:45,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 08:09:45,636 INFO L87 Difference]: Start difference. First operand 7005 states and 10739 transitions. Second operand 4 states. [2020-12-22 08:09:46,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:46,402 INFO L93 Difference]: Finished difference Result 20745 states and 31780 transitions. [2020-12-22 08:09:46,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:09:46,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 304 [2020-12-22 08:09:46,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:46,495 INFO L225 Difference]: With dead ends: 20745 [2020-12-22 08:09:46,495 INFO L226 Difference]: Without dead ends: 13751 [2020-12-22 08:09:46,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:09:46,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13751 states. [2020-12-22 08:09:47,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13751 to 13563. [2020-12-22 08:09:47,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13563 states. [2020-12-22 08:09:47,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13563 states to 13563 states and 20701 transitions. [2020-12-22 08:09:47,302 INFO L78 Accepts]: Start accepts. Automaton has 13563 states and 20701 transitions. Word has length 304 [2020-12-22 08:09:47,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:47,302 INFO L481 AbstractCegarLoop]: Abstraction has 13563 states and 20701 transitions. [2020-12-22 08:09:47,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 08:09:47,302 INFO L276 IsEmpty]: Start isEmpty. Operand 13563 states and 20701 transitions. [2020-12-22 08:09:47,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-12-22 08:09:47,330 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:47,330 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:47,331 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:09:47,331 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:47,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:47,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1717054208, now seen corresponding path program 1 times [2020-12-22 08:09:47,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:47,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176230473] [2020-12-22 08:09:47,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:47,768 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 08:09:47,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176230473] [2020-12-22 08:09:47,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:47,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:47,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013195413] [2020-12-22 08:09:47,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:47,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:47,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:47,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:47,772 INFO L87 Difference]: Start difference. First operand 13563 states and 20701 transitions. Second operand 3 states. [2020-12-22 08:09:48,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:48,994 INFO L93 Difference]: Finished difference Result 40056 states and 61063 transitions. [2020-12-22 08:09:48,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:48,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 306 [2020-12-22 08:09:48,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:49,091 INFO L225 Difference]: With dead ends: 40056 [2020-12-22 08:09:49,091 INFO L226 Difference]: Without dead ends: 26618 [2020-12-22 08:09:49,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:49,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26618 states. [2020-12-22 08:09:50,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26618 to 26430. [2020-12-22 08:09:50,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26430 states. [2020-12-22 08:09:50,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26430 states to 26430 states and 40126 transitions. [2020-12-22 08:09:50,290 INFO L78 Accepts]: Start accepts. Automaton has 26430 states and 40126 transitions. Word has length 306 [2020-12-22 08:09:50,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:50,291 INFO L481 AbstractCegarLoop]: Abstraction has 26430 states and 40126 transitions. [2020-12-22 08:09:50,291 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:50,291 INFO L276 IsEmpty]: Start isEmpty. Operand 26430 states and 40126 transitions. [2020-12-22 08:09:50,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-12-22 08:09:50,337 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:50,337 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:50,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:09:50,338 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:50,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:50,339 INFO L82 PathProgramCache]: Analyzing trace with hash 263725189, now seen corresponding path program 1 times [2020-12-22 08:09:50,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:50,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031384407] [2020-12-22 08:09:50,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:50,557 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 08:09:50,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031384407] [2020-12-22 08:09:50,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:50,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:50,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508178560] [2020-12-22 08:09:50,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:50,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:50,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:50,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:50,566 INFO L87 Difference]: Start difference. First operand 26430 states and 40126 transitions. Second operand 3 states. [2020-12-22 08:09:52,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:52,721 INFO L93 Difference]: Finished difference Result 79223 states and 120262 transitions. [2020-12-22 08:09:52,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:52,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 306 [2020-12-22 08:09:52,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:52,853 INFO L225 Difference]: With dead ends: 79223 [2020-12-22 08:09:52,854 INFO L226 Difference]: Without dead ends: 52831 [2020-12-22 08:09:52,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:52,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52831 states. [2020-12-22 08:09:54,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52831 to 26449. [2020-12-22 08:09:54,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26449 states. [2020-12-22 08:09:54,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26449 states to 26449 states and 40154 transitions. [2020-12-22 08:09:54,624 INFO L78 Accepts]: Start accepts. Automaton has 26449 states and 40154 transitions. Word has length 306 [2020-12-22 08:09:54,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:54,624 INFO L481 AbstractCegarLoop]: Abstraction has 26449 states and 40154 transitions. [2020-12-22 08:09:54,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:54,624 INFO L276 IsEmpty]: Start isEmpty. Operand 26449 states and 40154 transitions. [2020-12-22 08:09:54,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-12-22 08:09:54,895 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:54,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:54,896 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:09:54,896 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:54,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:54,897 INFO L82 PathProgramCache]: Analyzing trace with hash -485064724, now seen corresponding path program 1 times [2020-12-22 08:09:54,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:54,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781002364] [2020-12-22 08:09:54,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:55,021 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 08:09:55,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781002364] [2020-12-22 08:09:55,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:55,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:09:55,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567385518] [2020-12-22 08:09:55,023 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:09:55,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:55,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:09:55,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:55,025 INFO L87 Difference]: Start difference. First operand 26449 states and 40154 transitions. Second operand 3 states. [2020-12-22 08:09:56,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:09:56,843 INFO L93 Difference]: Finished difference Result 79242 states and 120283 transitions. [2020-12-22 08:09:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:09:56,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 307 [2020-12-22 08:09:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:09:56,978 INFO L225 Difference]: With dead ends: 79242 [2020-12-22 08:09:56,978 INFO L226 Difference]: Without dead ends: 52849 [2020-12-22 08:09:57,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:09:57,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52849 states. [2020-12-22 08:09:58,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52849 to 26467. [2020-12-22 08:09:58,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26467 states. [2020-12-22 08:09:58,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26467 states to 26467 states and 40175 transitions. [2020-12-22 08:09:58,864 INFO L78 Accepts]: Start accepts. Automaton has 26467 states and 40175 transitions. Word has length 307 [2020-12-22 08:09:58,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:09:58,864 INFO L481 AbstractCegarLoop]: Abstraction has 26467 states and 40175 transitions. [2020-12-22 08:09:58,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:09:58,864 INFO L276 IsEmpty]: Start isEmpty. Operand 26467 states and 40175 transitions. [2020-12-22 08:09:58,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-22 08:09:58,890 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:09:58,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:58,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:09:58,891 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:09:58,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:09:58,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1757991240, now seen corresponding path program 1 times [2020-12-22 08:09:58,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:09:58,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930603444] [2020-12-22 08:09:58,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:09:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:09:59,495 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 08:09:59,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930603444] [2020-12-22 08:09:59,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:09:59,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:09:59,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282905002] [2020-12-22 08:09:59,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:09:59,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:09:59,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:09:59,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:09:59,498 INFO L87 Difference]: Start difference. First operand 26467 states and 40175 transitions. Second operand 5 states. [2020-12-22 08:10:02,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:10:02,521 INFO L93 Difference]: Finished difference Result 78146 states and 118490 transitions. [2020-12-22 08:10:02,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:10:02,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2020-12-22 08:10:02,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:10:02,615 INFO L225 Difference]: With dead ends: 78146 [2020-12-22 08:10:02,616 INFO L226 Difference]: Without dead ends: 51722 [2020-12-22 08:10:02,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:10:02,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51722 states. [2020-12-22 08:10:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51722 to 51558. [2020-12-22 08:10:05,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51558 states. [2020-12-22 08:10:05,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51558 states to 51558 states and 77747 transitions. [2020-12-22 08:10:05,405 INFO L78 Accepts]: Start accepts. Automaton has 51558 states and 77747 transitions. Word has length 308 [2020-12-22 08:10:05,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:10:05,405 INFO L481 AbstractCegarLoop]: Abstraction has 51558 states and 77747 transitions. [2020-12-22 08:10:05,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:10:05,405 INFO L276 IsEmpty]: Start isEmpty. Operand 51558 states and 77747 transitions. [2020-12-22 08:10:05,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-12-22 08:10:05,645 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:10:05,646 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:05,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:10:05,646 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:10:05,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:10:05,647 INFO L82 PathProgramCache]: Analyzing trace with hash 154367054, now seen corresponding path program 1 times [2020-12-22 08:10:05,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:10:05,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989940543] [2020-12-22 08:10:05,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:10:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:10:06,132 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 08:10:06,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989940543] [2020-12-22 08:10:06,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:10:06,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:10:06,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457078965] [2020-12-22 08:10:06,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 08:10:06,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:10:06,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 08:10:06,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 08:10:06,135 INFO L87 Difference]: Start difference. First operand 51558 states and 77747 transitions. Second operand 4 states. [2020-12-22 08:10:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:10:10,364 INFO L93 Difference]: Finished difference Result 152450 states and 229673 transitions. [2020-12-22 08:10:10,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:10:10,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 310 [2020-12-22 08:10:10,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:10:10,600 INFO L225 Difference]: With dead ends: 152450 [2020-12-22 08:10:10,601 INFO L226 Difference]: Without dead ends: 101018 [2020-12-22 08:10:10,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:10:11,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101018 states. [2020-12-22 08:10:15,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101018 to 100810. [2020-12-22 08:10:15,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100810 states. [2020-12-22 08:10:16,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100810 states to 100810 states and 151029 transitions. [2020-12-22 08:10:16,220 INFO L78 Accepts]: Start accepts. Automaton has 100810 states and 151029 transitions. Word has length 310 [2020-12-22 08:10:16,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:10:16,221 INFO L481 AbstractCegarLoop]: Abstraction has 100810 states and 151029 transitions. [2020-12-22 08:10:16,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 08:10:16,221 INFO L276 IsEmpty]: Start isEmpty. Operand 100810 states and 151029 transitions. [2020-12-22 08:10:16,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-12-22 08:10:16,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:10:16,360 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:16,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:10:16,360 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:10:16,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:10:16,361 INFO L82 PathProgramCache]: Analyzing trace with hash 620391465, now seen corresponding path program 1 times [2020-12-22 08:10:16,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:10:16,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375141628] [2020-12-22 08:10:16,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:10:16,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:10:16,888 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 08:10:16,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375141628] [2020-12-22 08:10:16,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:10:16,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:10:16,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952995729] [2020-12-22 08:10:16,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:10:16,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:10:16,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:10:16,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:16,891 INFO L87 Difference]: Start difference. First operand 100810 states and 151029 transitions. Second operand 3 states. [2020-12-22 08:10:25,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:10:25,355 INFO L93 Difference]: Finished difference Result 297852 states and 445699 transitions. [2020-12-22 08:10:25,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:10:25,356 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2020-12-22 08:10:25,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:10:25,835 INFO L225 Difference]: With dead ends: 297852 [2020-12-22 08:10:25,836 INFO L226 Difference]: Without dead ends: 197556 [2020-12-22 08:10:25,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:26,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197556 states. [2020-12-22 08:10:35,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197556 to 197348. [2020-12-22 08:10:35,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197348 states. [2020-12-22 08:10:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197348 states to 197348 states and 293657 transitions. [2020-12-22 08:10:36,572 INFO L78 Accepts]: Start accepts. Automaton has 197348 states and 293657 transitions. Word has length 312 [2020-12-22 08:10:36,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:10:36,573 INFO L481 AbstractCegarLoop]: Abstraction has 197348 states and 293657 transitions. [2020-12-22 08:10:36,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:10:36,573 INFO L276 IsEmpty]: Start isEmpty. Operand 197348 states and 293657 transitions. [2020-12-22 08:10:36,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-12-22 08:10:36,724 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:10:36,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:10:36,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:10:36,724 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:10:36,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:10:36,725 INFO L82 PathProgramCache]: Analyzing trace with hash -53597842, now seen corresponding path program 1 times [2020-12-22 08:10:36,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:10:36,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588263352] [2020-12-22 08:10:36,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:10:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:10:36,867 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 08:10:36,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588263352] [2020-12-22 08:10:36,868 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:10:36,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:10:36,868 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343210005] [2020-12-22 08:10:36,869 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:10:36,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:10:36,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:10:36,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:36,870 INFO L87 Difference]: Start difference. First operand 197348 states and 293657 transitions. Second operand 3 states. [2020-12-22 08:10:54,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:10:54,402 INFO L93 Difference]: Finished difference Result 591554 states and 880173 transitions. [2020-12-22 08:10:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:10:54,403 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2020-12-22 08:10:54,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:10:55,356 INFO L225 Difference]: With dead ends: 591554 [2020-12-22 08:10:55,356 INFO L226 Difference]: Without dead ends: 394478 [2020-12-22 08:10:55,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:10:55,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394478 states. [2020-12-22 08:11:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394478 to 197462. [2020-12-22 08:11:08,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197462 states. [2020-12-22 08:11:09,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197462 states to 197462 states and 293825 transitions. [2020-12-22 08:11:09,199 INFO L78 Accepts]: Start accepts. Automaton has 197462 states and 293825 transitions. Word has length 312 [2020-12-22 08:11:09,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:11:09,199 INFO L481 AbstractCegarLoop]: Abstraction has 197462 states and 293825 transitions. [2020-12-22 08:11:09,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:11:09,200 INFO L276 IsEmpty]: Start isEmpty. Operand 197462 states and 293825 transitions. [2020-12-22 08:11:09,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-12-22 08:11:09,376 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:11:09,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:11:09,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:11:09,377 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:11:09,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:11:09,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1312450781, now seen corresponding path program 1 times [2020-12-22 08:11:09,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:11:09,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544409172] [2020-12-22 08:11:09,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:11:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:11:09,495 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 08:11:09,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544409172] [2020-12-22 08:11:09,496 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:11:09,496 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:11:09,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873105978] [2020-12-22 08:11:09,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:11:09,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:11:09,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:11:09,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:11:09,498 INFO L87 Difference]: Start difference. First operand 197462 states and 293825 transitions. Second operand 3 states.