/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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 09:05:52,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 09:05:52,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 09:05:52,107 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 09:05:52,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 09:05:52,110 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 09:05:52,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 09:05:52,114 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 09:05:52,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 09:05:52,119 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 09:05:52,120 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 09:05:52,122 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 09:05:52,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 09:05:52,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 09:05:52,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 09:05:52,127 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 09:05:52,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 09:05:52,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 09:05:52,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 09:05:52,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 09:05:52,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 09:05:52,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 09:05:52,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 09:05:52,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 09:05:52,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 09:05:52,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 09:05:52,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 09:05:52,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 09:05:52,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 09:05:52,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 09:05:52,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 09:05:52,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 09:05:52,182 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 09:05:52,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 09:05:52,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 09:05:52,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 09:05:52,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 09:05:52,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 09:05:52,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 09:05:52,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 09:05:52,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 09:05:52,196 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 09:05:52,262 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 09:05:52,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 09:05:52,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 09:05:52,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 09:05:52,269 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 09:05:52,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 09:05:52,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 09:05:52,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 09:05:52,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 09:05:52,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 09:05:52,272 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 09:05:52,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 09:05:52,272 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 09:05:52,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 09:05:52,273 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 09:05:52,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 09:05:52,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 09:05:52,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 09:05:52,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 09:05:52,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 09:05:52,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 09:05:52,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 09:05:52,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 09:05:52,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 09:05:52,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 09:05:52,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 09:05:52,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 09:05:52,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 09:05:52,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 09:05:52,791 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 09:05:52,791 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 09:05:52,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 09:05:52,887 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3805639f3/b5d3c7ba7bc54c10969e1305ab165727/FLAG578402c23 [2020-12-22 09:05:53,866 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 09:05:53,867 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 09:05:53,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3805639f3/b5d3c7ba7bc54c10969e1305ab165727/FLAG578402c23 [2020-12-22 09:05:53,950 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3805639f3/b5d3c7ba7bc54c10969e1305ab165727 [2020-12-22 09:05:53,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 09:05:53,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 09:05:53,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 09:05:53,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 09:05:53,962 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 09:05:53,963 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:05:53" (1/1) ... [2020-12-22 09:05:53,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11944751 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:53, skipping insertion in model container [2020-12-22 09:05:53,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:05:53" (1/1) ... [2020-12-22 09:05:53,973 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 09:05:54,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 09:05:54,904 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34264,34277] [2020-12-22 09:05:54,928 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35154,35167] [2020-12-22 09:05:54,962 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36984,36997] [2020-12-22 09:05:54,982 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37874,37887] [2020-12-22 09:05:55,026 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40647,40660] [2020-12-22 09:05:55,046 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41540,41553] [2020-12-22 09:05:55,079 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[43373,43386] [2020-12-22 09:05:55,105 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[44650,44663] [2020-12-22 09:05:55,297 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60303,60316] [2020-12-22 09:05:55,323 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61196,61209] [2020-12-22 09:05:55,363 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63029,63042] [2020-12-22 09:05:55,450 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67486,67499] [2020-12-22 09:05:55,653 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 09:05:55,678 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 09:05:55,982 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34264,34277] [2020-12-22 09:05:56,004 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[35154,35167] [2020-12-22 09:05:56,041 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[36984,36997] [2020-12-22 09:05:56,060 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37874,37887] [2020-12-22 09:05:56,107 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[40647,40660] [2020-12-22 09:05:56,128 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41540,41553] [2020-12-22 09:05:56,160 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[43373,43386] [2020-12-22 09:05:56,187 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[44650,44663] [2020-12-22 09:05:56,369 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[60303,60316] [2020-12-22 09:05:56,387 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[61196,61209] [2020-12-22 09:05:56,414 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[63029,63042] [2020-12-22 09:05:56,476 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_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[67486,67499] [2020-12-22 09:05:56,592 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 09:05:56,624 INFO L208 MainTranslator]: Completed translation [2020-12-22 09:05:56,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56 WrapperNode [2020-12-22 09:05:56,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 09:05:56,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 09:05:56,627 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 09:05:56,627 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 09:05:56,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (1/1) ... [2020-12-22 09:05:56,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (1/1) ... [2020-12-22 09:05:56,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 09:05:56,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 09:05:56,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 09:05:56,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 09:05:56,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (1/1) ... [2020-12-22 09:05:56,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (1/1) ... [2020-12-22 09:05:56,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (1/1) ... [2020-12-22 09:05:56,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (1/1) ... [2020-12-22 09:05:56,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (1/1) ... [2020-12-22 09:05:56,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (1/1) ... [2020-12-22 09:05:56,993 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (1/1) ... [2020-12-22 09:05:57,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 09:05:57,011 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 09:05:57,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 09:05:57,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 09:05:57,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (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 09:05:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 09:05:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 09:05:57,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 09:05:57,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 09:06:00,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 09:06:00,778 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 09:06:00,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:06:00 BoogieIcfgContainer [2020-12-22 09:06:00,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 09:06:00,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 09:06:00,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 09:06:00,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 09:06:00,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 09:05:53" (1/3) ... [2020-12-22 09:06:00,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344a8022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:06:00, skipping insertion in model container [2020-12-22 09:06:00,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:05:56" (2/3) ... [2020-12-22 09:06:00,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344a8022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:06:00, skipping insertion in model container [2020-12-22 09:06:00,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:06:00" (3/3) ... [2020-12-22 09:06:00,791 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.1.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 09:06:00,798 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 09:06:00,804 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-22 09:06:00,825 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-22 09:06:00,864 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 09:06:00,865 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 09:06:00,865 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 09:06:00,865 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 09:06:00,865 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 09:06:00,865 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 09:06:00,865 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 09:06:00,866 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 09:06:00,905 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states. [2020-12-22 09:06:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-22 09:06:00,945 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:00,946 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 09:06:00,947 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 09:06:00,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:00,954 INFO L82 PathProgramCache]: Analyzing trace with hash -85310569, now seen corresponding path program 1 times [2020-12-22 09:06:00,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:00,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119607277] [2020-12-22 09:06:00,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:02,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:02,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119607277] [2020-12-22 09:06:02,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:02,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 09:06:02,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652590025] [2020-12-22 09:06:02,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 09:06:02,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:02,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 09:06:02,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 09:06:02,203 INFO L87 Difference]: Start difference. First operand 999 states. Second operand 3 states. [2020-12-22 09:06:02,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:02,548 INFO L93 Difference]: Finished difference Result 1757 states and 3116 transitions. [2020-12-22 09:06:02,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 09:06:02,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-12-22 09:06:02,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:02,597 INFO L225 Difference]: With dead ends: 1757 [2020-12-22 09:06:02,598 INFO L226 Difference]: Without dead ends: 1465 [2020-12-22 09:06:02,604 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 09:06:02,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1465 states. [2020-12-22 09:06:02,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1465 to 1463. [2020-12-22 09:06:02,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1463 states. [2020-12-22 09:06:02,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 2250 transitions. [2020-12-22 09:06:02,804 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 2250 transitions. Word has length 308 [2020-12-22 09:06:02,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:06:02,808 INFO L481 AbstractCegarLoop]: Abstraction has 1463 states and 2250 transitions. [2020-12-22 09:06:02,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 09:06:02,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 2250 transitions. [2020-12-22 09:06:02,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-22 09:06:02,824 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:02,825 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 09:06:02,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 09:06:02,828 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 09:06:02,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:02,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1477444319, now seen corresponding path program 1 times [2020-12-22 09:06:02,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:02,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825273082] [2020-12-22 09:06:02,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:03,382 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825273082] [2020-12-22 09:06:03,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:03,383 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 09:06:03,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630826613] [2020-12-22 09:06:03,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 09:06:03,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:03,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 09:06:03,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 09:06:03,389 INFO L87 Difference]: Start difference. First operand 1463 states and 2250 transitions. Second operand 3 states. [2020-12-22 09:06:03,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:03,741 INFO L93 Difference]: Finished difference Result 2860 states and 4447 transitions. [2020-12-22 09:06:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 09:06:03,742 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 308 [2020-12-22 09:06:03,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:03,758 INFO L225 Difference]: With dead ends: 2860 [2020-12-22 09:06:03,758 INFO L226 Difference]: Without dead ends: 2491 [2020-12-22 09:06:03,766 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 09:06:03,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2491 states. [2020-12-22 09:06:03,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2491 to 2489. [2020-12-22 09:06:03,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2020-12-22 09:06:03,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3849 transitions. [2020-12-22 09:06:03,869 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3849 transitions. Word has length 308 [2020-12-22 09:06:03,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:06:03,870 INFO L481 AbstractCegarLoop]: Abstraction has 2489 states and 3849 transitions. [2020-12-22 09:06:03,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 09:06:03,870 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3849 transitions. [2020-12-22 09:06:03,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-22 09:06:03,878 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:03,879 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 09:06:03,879 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 09:06:03,880 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 09:06:03,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:03,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1477875295, now seen corresponding path program 1 times [2020-12-22 09:06:03,882 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:03,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491105944] [2020-12-22 09:06:03,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:04,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:04,829 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491105944] [2020-12-22 09:06:04,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:04,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 09:06:04,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355082370] [2020-12-22 09:06:04,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 09:06:04,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:04,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 09:06:04,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 09:06:04,844 INFO L87 Difference]: Start difference. First operand 2489 states and 3849 transitions. Second operand 4 states. [2020-12-22 09:06:05,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:05,388 INFO L93 Difference]: Finished difference Result 7363 states and 11370 transitions. [2020-12-22 09:06:05,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 09:06:05,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 308 [2020-12-22 09:06:05,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:05,417 INFO L225 Difference]: With dead ends: 7363 [2020-12-22 09:06:05,417 INFO L226 Difference]: Without dead ends: 4885 [2020-12-22 09:06:05,422 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 09:06:05,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4885 states. [2020-12-22 09:06:05,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4885 to 4714. [2020-12-22 09:06:05,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4714 states. [2020-12-22 09:06:05,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4714 states to 4714 states and 7279 transitions. [2020-12-22 09:06:05,667 INFO L78 Accepts]: Start accepts. Automaton has 4714 states and 7279 transitions. Word has length 308 [2020-12-22 09:06:05,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:06:05,668 INFO L481 AbstractCegarLoop]: Abstraction has 4714 states and 7279 transitions. [2020-12-22 09:06:05,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 09:06:05,668 INFO L276 IsEmpty]: Start isEmpty. Operand 4714 states and 7279 transitions. [2020-12-22 09:06:05,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-12-22 09:06:05,679 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:05,679 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 09:06:05,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 09:06:05,680 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 09:06:05,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:05,681 INFO L82 PathProgramCache]: Analyzing trace with hash 157578207, now seen corresponding path program 1 times [2020-12-22 09:06:05,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:05,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734349465] [2020-12-22 09:06:05,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:06,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:06,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734349465] [2020-12-22 09:06:06,089 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:06,089 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 09:06:06,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34688875] [2020-12-22 09:06:06,091 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 09:06:06,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:06,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 09:06:06,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 09:06:06,093 INFO L87 Difference]: Start difference. First operand 4714 states and 7279 transitions. Second operand 3 states. [2020-12-22 09:06:06,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:06,756 INFO L93 Difference]: Finished difference Result 13840 states and 21315 transitions. [2020-12-22 09:06:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 09:06:06,757 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 310 [2020-12-22 09:06:06,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:06,810 INFO L225 Difference]: With dead ends: 13840 [2020-12-22 09:06:06,811 INFO L226 Difference]: Without dead ends: 9251 [2020-12-22 09:06:06,821 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 09:06:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9251 states. [2020-12-22 09:06:07,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9251 to 9080. [2020-12-22 09:06:07,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9080 states. [2020-12-22 09:06:07,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9080 states to 9080 states and 13968 transitions. [2020-12-22 09:06:07,410 INFO L78 Accepts]: Start accepts. Automaton has 9080 states and 13968 transitions. Word has length 310 [2020-12-22 09:06:07,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:06:07,411 INFO L481 AbstractCegarLoop]: Abstraction has 9080 states and 13968 transitions. [2020-12-22 09:06:07,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 09:06:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 9080 states and 13968 transitions. [2020-12-22 09:06:07,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-12-22 09:06:07,435 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:07,435 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 09:06:07,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 09:06:07,435 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 09:06:07,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:07,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1863589604, now seen corresponding path program 1 times [2020-12-22 09:06:07,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:07,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515983350] [2020-12-22 09:06:07,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:07,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:07,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515983350] [2020-12-22 09:06:07,689 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:07,689 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 09:06:07,689 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420925275] [2020-12-22 09:06:07,690 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 09:06:07,690 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:07,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 09:06:07,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 09:06:07,691 INFO L87 Difference]: Start difference. First operand 9080 states and 13968 transitions. Second operand 3 states. [2020-12-22 09:06:08,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:08,711 INFO L93 Difference]: Finished difference Result 27173 states and 41788 transitions. [2020-12-22 09:06:08,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 09:06:08,712 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 310 [2020-12-22 09:06:08,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:08,814 INFO L225 Difference]: With dead ends: 27173 [2020-12-22 09:06:08,815 INFO L226 Difference]: Without dead ends: 18131 [2020-12-22 09:06:08,839 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 09:06:08,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18131 states. [2020-12-22 09:06:09,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18131 to 9099. [2020-12-22 09:06:09,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9099 states. [2020-12-22 09:06:09,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9099 states to 9099 states and 13996 transitions. [2020-12-22 09:06:09,600 INFO L78 Accepts]: Start accepts. Automaton has 9099 states and 13996 transitions. Word has length 310 [2020-12-22 09:06:09,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:06:09,601 INFO L481 AbstractCegarLoop]: Abstraction has 9099 states and 13996 transitions. [2020-12-22 09:06:09,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 09:06:09,601 INFO L276 IsEmpty]: Start isEmpty. Operand 9099 states and 13996 transitions. [2020-12-22 09:06:09,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-12-22 09:06:09,621 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:09,621 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] [2020-12-22 09:06:09,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 09:06:09,622 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 09:06:09,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:09,623 INFO L82 PathProgramCache]: Analyzing trace with hash -2037830479, now seen corresponding path program 1 times [2020-12-22 09:06:09,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:09,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405549240] [2020-12-22 09:06:09,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:09,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405549240] [2020-12-22 09:06:09,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:09,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 09:06:09,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337389217] [2020-12-22 09:06:09,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 09:06:09,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:09,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 09:06:09,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 09:06:09,778 INFO L87 Difference]: Start difference. First operand 9099 states and 13996 transitions. Second operand 3 states. [2020-12-22 09:06:10,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:10,712 INFO L93 Difference]: Finished difference Result 27192 states and 41809 transitions. [2020-12-22 09:06:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 09:06:10,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 311 [2020-12-22 09:06:10,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:10,760 INFO L225 Difference]: With dead ends: 27192 [2020-12-22 09:06:10,761 INFO L226 Difference]: Without dead ends: 18149 [2020-12-22 09:06:10,778 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 09:06:10,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18149 states. [2020-12-22 09:06:11,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18149 to 9117. [2020-12-22 09:06:11,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9117 states. [2020-12-22 09:06:11,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9117 states to 9117 states and 14017 transitions. [2020-12-22 09:06:11,514 INFO L78 Accepts]: Start accepts. Automaton has 9117 states and 14017 transitions. Word has length 311 [2020-12-22 09:06:11,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:06:11,514 INFO L481 AbstractCegarLoop]: Abstraction has 9117 states and 14017 transitions. [2020-12-22 09:06:11,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 09:06:11,515 INFO L276 IsEmpty]: Start isEmpty. Operand 9117 states and 14017 transitions. [2020-12-22 09:06:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-12-22 09:06:11,536 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:11,536 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 09:06:11,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 09:06:11,537 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 09:06:11,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:11,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1963640314, now seen corresponding path program 1 times [2020-12-22 09:06:11,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:11,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182683] [2020-12-22 09:06:11,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:11,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:11,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182683] [2020-12-22 09:06:11,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:11,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 09:06:11,834 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529864867] [2020-12-22 09:06:11,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 09:06:11,834 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:11,835 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 09:06:11,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 09:06:11,841 INFO L87 Difference]: Start difference. First operand 9117 states and 14017 transitions. Second operand 3 states. [2020-12-22 09:06:12,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:12,992 INFO L93 Difference]: Finished difference Result 25718 states and 39429 transitions. [2020-12-22 09:06:12,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 09:06:12,993 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2020-12-22 09:06:12,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:13,036 INFO L225 Difference]: With dead ends: 25718 [2020-12-22 09:06:13,037 INFO L226 Difference]: Without dead ends: 16842 [2020-12-22 09:06:13,058 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 09:06:13,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16842 states. [2020-12-22 09:06:14,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16842 to 16671. [2020-12-22 09:06:14,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16671 states. [2020-12-22 09:06:14,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16671 states to 16671 states and 25468 transitions. [2020-12-22 09:06:14,330 INFO L78 Accepts]: Start accepts. Automaton has 16671 states and 25468 transitions. Word has length 312 [2020-12-22 09:06:14,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:06:14,330 INFO L481 AbstractCegarLoop]: Abstraction has 16671 states and 25468 transitions. [2020-12-22 09:06:14,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 09:06:14,330 INFO L276 IsEmpty]: Start isEmpty. Operand 16671 states and 25468 transitions. [2020-12-22 09:06:14,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-12-22 09:06:14,362 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:14,362 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 09:06:14,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 09:06:14,363 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 09:06:14,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:14,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1031936087, now seen corresponding path program 1 times [2020-12-22 09:06:14,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:14,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609098713] [2020-12-22 09:06:14,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:14,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:14,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609098713] [2020-12-22 09:06:14,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:14,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 09:06:14,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748498008] [2020-12-22 09:06:14,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 09:06:14,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:14,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 09:06:14,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 09:06:14,922 INFO L87 Difference]: Start difference. First operand 16671 states and 25468 transitions. Second operand 5 states. [2020-12-22 09:06:16,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:16,893 INFO L93 Difference]: Finished difference Result 49080 states and 74843 transitions. [2020-12-22 09:06:16,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 09:06:16,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 312 [2020-12-22 09:06:16,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:16,979 INFO L225 Difference]: With dead ends: 49080 [2020-12-22 09:06:16,979 INFO L226 Difference]: Without dead ends: 32464 [2020-12-22 09:06:17,010 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 09:06:17,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32464 states. [2020-12-22 09:06:19,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32464 to 32307. [2020-12-22 09:06:19,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32307 states. [2020-12-22 09:06:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32307 states to 32307 states and 48998 transitions. [2020-12-22 09:06:19,532 INFO L78 Accepts]: Start accepts. Automaton has 32307 states and 48998 transitions. Word has length 312 [2020-12-22 09:06:19,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:06:19,533 INFO L481 AbstractCegarLoop]: Abstraction has 32307 states and 48998 transitions. [2020-12-22 09:06:19,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 09:06:19,533 INFO L276 IsEmpty]: Start isEmpty. Operand 32307 states and 48998 transitions. [2020-12-22 09:06:19,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-12-22 09:06:19,603 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:19,604 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, 1] [2020-12-22 09:06:19,604 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 09:06:19,604 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 09:06:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:19,605 INFO L82 PathProgramCache]: Analyzing trace with hash -506893435, now seen corresponding path program 1 times [2020-12-22 09:06:19,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:19,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424852592] [2020-12-22 09:06:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:19,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:19,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:19,959 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424852592] [2020-12-22 09:06:19,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:19,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 09:06:19,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811374451] [2020-12-22 09:06:19,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 09:06:19,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:19,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 09:06:19,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 09:06:19,962 INFO L87 Difference]: Start difference. First operand 32307 states and 48998 transitions. Second operand 3 states. [2020-12-22 09:06:22,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:22,626 INFO L93 Difference]: Finished difference Result 95033 states and 143817 transitions. [2020-12-22 09:06:22,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 09:06:22,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 314 [2020-12-22 09:06:22,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:22,770 INFO L225 Difference]: With dead ends: 95033 [2020-12-22 09:06:22,770 INFO L226 Difference]: Without dead ends: 63243 [2020-12-22 09:06:22,815 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 09:06:22,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63243 states. [2020-12-22 09:06:26,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63243 to 63094. [2020-12-22 09:06:26,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63094 states. [2020-12-22 09:06:26,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63094 states to 63094 states and 95042 transitions. [2020-12-22 09:06:26,392 INFO L78 Accepts]: Start accepts. Automaton has 63094 states and 95042 transitions. Word has length 314 [2020-12-22 09:06:26,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:06:26,393 INFO L481 AbstractCegarLoop]: Abstraction has 63094 states and 95042 transitions. [2020-12-22 09:06:26,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 09:06:26,393 INFO L276 IsEmpty]: Start isEmpty. Operand 63094 states and 95042 transitions. [2020-12-22 09:06:26,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-12-22 09:06:26,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:26,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:06:26,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 09:06:26,463 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 09:06:26,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:26,464 INFO L82 PathProgramCache]: Analyzing trace with hash -574901982, now seen corresponding path program 1 times [2020-12-22 09:06:26,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:26,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874691664] [2020-12-22 09:06:26,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:26,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:26,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:26,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874691664] [2020-12-22 09:06:26,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:26,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 09:06:26,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494710669] [2020-12-22 09:06:26,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 09:06:26,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:26,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 09:06:26,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 09:06:26,968 INFO L87 Difference]: Start difference. First operand 63094 states and 95042 transitions. Second operand 5 states. [2020-12-22 09:06:32,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:32,356 INFO L93 Difference]: Finished difference Result 186099 states and 279740 transitions. [2020-12-22 09:06:32,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 09:06:32,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 314 [2020-12-22 09:06:32,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:32,591 INFO L225 Difference]: With dead ends: 186099 [2020-12-22 09:06:32,591 INFO L226 Difference]: Without dead ends: 123156 [2020-12-22 09:06:32,700 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 09:06:32,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123156 states. [2020-12-22 09:06:38,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123156 to 123045. [2020-12-22 09:06:38,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123045 states. [2020-12-22 09:06:38,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123045 states to 123045 states and 183758 transitions. [2020-12-22 09:06:38,867 INFO L78 Accepts]: Start accepts. Automaton has 123045 states and 183758 transitions. Word has length 314 [2020-12-22 09:06:38,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:06:38,867 INFO L481 AbstractCegarLoop]: Abstraction has 123045 states and 183758 transitions. [2020-12-22 09:06:38,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 09:06:38,867 INFO L276 IsEmpty]: Start isEmpty. Operand 123045 states and 183758 transitions. [2020-12-22 09:06:38,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-12-22 09:06:38,994 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:06:38,994 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, 1] [2020-12-22 09:06:38,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 09:06:38,995 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 09:06:38,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:06:38,995 INFO L82 PathProgramCache]: Analyzing trace with hash 581680993, now seen corresponding path program 1 times [2020-12-22 09:06:38,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:06:38,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537488519] [2020-12-22 09:06:38,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:06:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:06:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:06:39,659 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537488519] [2020-12-22 09:06:39,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:06:39,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 09:06:39,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887975616] [2020-12-22 09:06:39,660 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 09:06:39,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:06:39,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 09:06:39,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 09:06:39,661 INFO L87 Difference]: Start difference. First operand 123045 states and 183758 transitions. Second operand 4 states. [2020-12-22 09:06:49,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:06:49,712 INFO L93 Difference]: Finished difference Result 363762 states and 542335 transitions. [2020-12-22 09:06:49,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 09:06:49,712 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 314 [2020-12-22 09:06:49,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:06:50,345 INFO L225 Difference]: With dead ends: 363762 [2020-12-22 09:06:50,345 INFO L226 Difference]: Without dead ends: 240999 [2020-12-22 09:06:50,589 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 09:06:50,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240999 states. [2020-12-22 09:07:02,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240999 to 240688. [2020-12-22 09:07:02,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240688 states. [2020-12-22 09:07:03,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240688 states to 240688 states and 356818 transitions. [2020-12-22 09:07:03,266 INFO L78 Accepts]: Start accepts. Automaton has 240688 states and 356818 transitions. Word has length 314 [2020-12-22 09:07:03,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:07:03,266 INFO L481 AbstractCegarLoop]: Abstraction has 240688 states and 356818 transitions. [2020-12-22 09:07:03,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 09:07:03,266 INFO L276 IsEmpty]: Start isEmpty. Operand 240688 states and 356818 transitions. [2020-12-22 09:07:03,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-12-22 09:07:03,457 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:07:03,457 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, 1, 1, 1] [2020-12-22 09:07:03,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 09:07:03,458 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 09:07:03,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:07:03,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1332473573, now seen corresponding path program 1 times [2020-12-22 09:07:03,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:07:03,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277602875] [2020-12-22 09:07:03,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:07:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:07:04,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:07:04,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277602875] [2020-12-22 09:07:04,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:07:04,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 09:07:04,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641074757] [2020-12-22 09:07:04,135 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 09:07:04,135 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:07:04,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 09:07:04,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 09:07:04,136 INFO L87 Difference]: Start difference. First operand 240688 states and 356818 transitions. Second operand 3 states. [2020-12-22 09:07:23,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:07:23,855 INFO L93 Difference]: Finished difference Result 719372 states and 1065942 transitions. [2020-12-22 09:07:23,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 09:07:23,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 316 [2020-12-22 09:07:23,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:07:24,922 INFO L225 Difference]: With dead ends: 719372 [2020-12-22 09:07:24,923 INFO L226 Difference]: Without dead ends: 479267 [2020-12-22 09:07:25,323 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 09:07:25,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479267 states.