/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 08:12:11,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 08:12:11,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 08:12:11,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 08:12:11,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 08:12:11,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 08:12:11,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 08:12:11,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 08:12:11,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 08:12:11,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 08:12:11,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 08:12:11,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 08:12:11,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 08:12:11,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 08:12:11,167 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 08:12:11,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 08:12:11,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 08:12:11,176 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 08:12:11,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 08:12:11,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 08:12:11,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 08:12:11,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 08:12:11,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 08:12:11,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 08:12:11,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 08:12:11,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 08:12:11,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 08:12:11,218 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 08:12:11,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 08:12:11,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 08:12:11,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 08:12:11,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 08:12:11,223 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 08:12:11,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 08:12:11,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 08:12:11,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 08:12:11,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 08:12:11,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 08:12:11,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 08:12:11,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 08:12:11,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 08:12:11,229 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 08:12:11,277 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 08:12:11,278 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 08:12:11,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 08:12:11,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 08:12:11,283 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 08:12:11,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 08:12:11,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 08:12:11,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 08:12:11,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 08:12:11,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 08:12:11,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 08:12:11,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 08:12:11,286 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 08:12:11,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 08:12:11,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 08:12:11,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 08:12:11,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 08:12:11,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:12:11,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 08:12:11,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 08:12:11,288 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 08:12:11,288 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 08:12:11,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 08:12:11,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 08:12:11,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 08:12:11,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 08:12:11,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 08:12:11,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 08:12:11,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 08:12:11,769 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 08:12:11,769 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 08:12:11,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:12:11,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c410b59e/60eacdef5ffb44db8f4ceafd3819ffe2/FLAG8815c2b9a [2020-12-22 08:12:12,733 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 08:12:12,738 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:12:12,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c410b59e/60eacdef5ffb44db8f4ceafd3819ffe2/FLAG8815c2b9a [2020-12-22 08:12:12,802 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c410b59e/60eacdef5ffb44db8f4ceafd3819ffe2 [2020-12-22 08:12:12,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 08:12:12,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 08:12:12,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 08:12:12,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 08:12:12,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 08:12:12,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:12:12" (1/1) ... [2020-12-22 08:12:12,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e37a48b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:12, skipping insertion in model container [2020-12-22 08:12:12,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 08:12:12" (1/1) ... [2020-12-22 08:12:12,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 08:12:12,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 08:12:13,879 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31330,31343] [2020-12-22 08:12:13,922 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32220,32233] [2020-12-22 08:12:13,974 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33922,33935] [2020-12-22 08:12:14,004 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_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34812,34825] [2020-12-22 08:12:14,082 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37329,37342] [2020-12-22 08:12:14,110 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38222,38235] [2020-12-22 08:12:14,159 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39927,39940] [2020-12-22 08:12:14,194 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41204,41217] [2020-12-22 08:12:14,371 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55253,55266] [2020-12-22 08:12:14,389 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56146,56159] [2020-12-22 08:12:14,417 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57851,57864] [2020-12-22 08:12:14,481 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[62052,62065] [2020-12-22 08:12:14,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:12:14,663 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 08:12:14,973 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[31330,31343] [2020-12-22 08:12:14,989 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[32220,32233] [2020-12-22 08:12:15,015 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[33922,33935] [2020-12-22 08:12:15,033 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[34812,34825] [2020-12-22 08:12:15,068 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[37329,37342] [2020-12-22 08:12:15,084 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[38222,38235] [2020-12-22 08:12:15,117 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[39927,39940] [2020-12-22 08:12:15,147 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[41204,41217] [2020-12-22 08:12:15,284 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[55253,55266] [2020-12-22 08:12:15,301 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[56146,56159] [2020-12-22 08:12:15,327 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[57851,57864] [2020-12-22 08:12:15,385 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[62052,62065] [2020-12-22 08:12:15,500 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 08:12:15,531 INFO L208 MainTranslator]: Completed translation [2020-12-22 08:12:15,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15 WrapperNode [2020-12-22 08:12:15,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 08:12:15,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 08:12:15,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 08:12:15,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 08:12:15,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (1/1) ... [2020-12-22 08:12:15,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (1/1) ... [2020-12-22 08:12:15,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 08:12:15,722 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 08:12:15,722 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 08:12:15,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 08:12:15,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (1/1) ... [2020-12-22 08:12:15,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (1/1) ... [2020-12-22 08:12:15,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (1/1) ... [2020-12-22 08:12:15,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (1/1) ... [2020-12-22 08:12:15,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (1/1) ... [2020-12-22 08:12:15,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (1/1) ... [2020-12-22 08:12:15,889 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (1/1) ... [2020-12-22 08:12:15,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 08:12:15,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 08:12:15,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 08:12:15,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 08:12:15,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 08:12:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 08:12:16,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 08:12:16,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 08:12:16,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 08:12:20,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 08:12:20,680 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-22 08:12:20,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:12:20 BoogieIcfgContainer [2020-12-22 08:12:20,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 08:12:20,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 08:12:20,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 08:12:20,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 08:12:20,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 08:12:12" (1/3) ... [2020-12-22 08:12:20,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0f84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:12:20, skipping insertion in model container [2020-12-22 08:12:20,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 08:12:15" (2/3) ... [2020-12-22 08:12:20,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0f84d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 08:12:20, skipping insertion in model container [2020-12-22 08:12:20,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 08:12:20" (3/3) ... [2020-12-22 08:12:20,694 INFO L111 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2020-12-22 08:12:20,702 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 08:12:20,712 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 12 error locations. [2020-12-22 08:12:20,733 INFO L253 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2020-12-22 08:12:20,769 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 08:12:20,769 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 08:12:20,769 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 08:12:20,769 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 08:12:20,769 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 08:12:20,770 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 08:12:20,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 08:12:20,770 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 08:12:20,814 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states. [2020-12-22 08:12:20,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:12:20,845 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:20,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:20,848 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:20,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:20,855 INFO L82 PathProgramCache]: Analyzing trace with hash -104575840, now seen corresponding path program 1 times [2020-12-22 08:12:20,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:20,866 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452035227] [2020-12-22 08:12:20,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:22,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:22,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452035227] [2020-12-22 08:12:22,086 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:22,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:12:22,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202686318] [2020-12-22 08:12:22,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:12:22,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:22,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:12:22,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:22,131 INFO L87 Difference]: Start difference. First operand 929 states. Second operand 3 states. [2020-12-22 08:12:22,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:22,638 INFO L93 Difference]: Finished difference Result 1608 states and 2878 transitions. [2020-12-22 08:12:22,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:12:22,641 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-12-22 08:12:22,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:22,703 INFO L225 Difference]: With dead ends: 1608 [2020-12-22 08:12:22,706 INFO L226 Difference]: Without dead ends: 1331 [2020-12-22 08:12:22,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:22,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1331 states. [2020-12-22 08:12:22,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1331 to 1329. [2020-12-22 08:12:22,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1329 states. [2020-12-22 08:12:22,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 2025 transitions. [2020-12-22 08:12:22,896 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 2025 transitions. Word has length 304 [2020-12-22 08:12:22,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:22,901 INFO L481 AbstractCegarLoop]: Abstraction has 1329 states and 2025 transitions. [2020-12-22 08:12:22,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:12:22,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 2025 transitions. [2020-12-22 08:12:22,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:12:22,916 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:22,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:22,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 08:12:22,920 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:22,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:22,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1949292730, now seen corresponding path program 1 times [2020-12-22 08:12:22,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:22,923 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012426339] [2020-12-22 08:12:22,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:23,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:23,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:23,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012426339] [2020-12-22 08:12:23,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:23,410 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:12:23,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636511561] [2020-12-22 08:12:23,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:12:23,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:23,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:12:23,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:23,414 INFO L87 Difference]: Start difference. First operand 1329 states and 2025 transitions. Second operand 3 states. [2020-12-22 08:12:23,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:23,901 INFO L93 Difference]: Finished difference Result 2530 states and 3899 transitions. [2020-12-22 08:12:23,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:12:23,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-12-22 08:12:23,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:23,917 INFO L225 Difference]: With dead ends: 2530 [2020-12-22 08:12:23,917 INFO L226 Difference]: Without dead ends: 2139 [2020-12-22 08:12:23,922 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:23,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2139 states. [2020-12-22 08:12:24,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2139 to 2137. [2020-12-22 08:12:24,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2137 states. [2020-12-22 08:12:24,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2137 states to 2137 states and 3267 transitions. [2020-12-22 08:12:24,031 INFO L78 Accepts]: Start accepts. Automaton has 2137 states and 3267 transitions. Word has length 304 [2020-12-22 08:12:24,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:24,032 INFO L481 AbstractCegarLoop]: Abstraction has 2137 states and 3267 transitions. [2020-12-22 08:12:24,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:12:24,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2137 states and 3267 transitions. [2020-12-22 08:12:24,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:12:24,042 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:24,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:24,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 08:12:24,043 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:24,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:24,048 INFO L82 PathProgramCache]: Analyzing trace with hash 493949370, now seen corresponding path program 1 times [2020-12-22 08:12:24,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:24,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632847868] [2020-12-22 08:12:24,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:24,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:24,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:24,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632847868] [2020-12-22 08:12:24,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:24,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:12:24,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109146500] [2020-12-22 08:12:24,519 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:12:24,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:24,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:12:24,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:24,521 INFO L87 Difference]: Start difference. First operand 2137 states and 3267 transitions. Second operand 3 states. [2020-12-22 08:12:24,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:24,968 INFO L93 Difference]: Finished difference Result 4396 states and 6808 transitions. [2020-12-22 08:12:24,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:12:24,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-12-22 08:12:24,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:24,991 INFO L225 Difference]: With dead ends: 4396 [2020-12-22 08:12:24,991 INFO L226 Difference]: Without dead ends: 3759 [2020-12-22 08:12:24,995 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:25,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2020-12-22 08:12:25,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3757. [2020-12-22 08:12:25,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3757 states. [2020-12-22 08:12:25,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3757 states to 3757 states and 5755 transitions. [2020-12-22 08:12:25,133 INFO L78 Accepts]: Start accepts. Automaton has 3757 states and 5755 transitions. Word has length 304 [2020-12-22 08:12:25,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:25,134 INFO L481 AbstractCegarLoop]: Abstraction has 3757 states and 5755 transitions. [2020-12-22 08:12:25,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:12:25,134 INFO L276 IsEmpty]: Start isEmpty. Operand 3757 states and 5755 transitions. [2020-12-22 08:12:25,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:12:25,144 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:25,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:25,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 08:12:25,145 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:25,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:25,146 INFO L82 PathProgramCache]: Analyzing trace with hash 440362699, now seen corresponding path program 1 times [2020-12-22 08:12:25,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:25,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598869844] [2020-12-22 08:12:25,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:25,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:25,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:25,505 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598869844] [2020-12-22 08:12:25,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:25,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:12:25,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910300637] [2020-12-22 08:12:25,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:12:25,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:25,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:12:25,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:25,508 INFO L87 Difference]: Start difference. First operand 3757 states and 5755 transitions. Second operand 3 states. [2020-12-22 08:12:26,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:26,188 INFO L93 Difference]: Finished difference Result 8136 states and 12632 transitions. [2020-12-22 08:12:26,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:12:26,189 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 304 [2020-12-22 08:12:26,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:26,228 INFO L225 Difference]: With dead ends: 8136 [2020-12-22 08:12:26,228 INFO L226 Difference]: Without dead ends: 7007 [2020-12-22 08:12:26,235 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:26,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7007 states. [2020-12-22 08:12:26,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7007 to 7005. [2020-12-22 08:12:26,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7005 states. [2020-12-22 08:12:26,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 10739 transitions. [2020-12-22 08:12:26,570 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 10739 transitions. Word has length 304 [2020-12-22 08:12:26,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:26,571 INFO L481 AbstractCegarLoop]: Abstraction has 7005 states and 10739 transitions. [2020-12-22 08:12:26,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:12:26,571 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 10739 transitions. [2020-12-22 08:12:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2020-12-22 08:12:26,589 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:26,589 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:26,590 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 08:12:26,590 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:26,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:26,591 INFO L82 PathProgramCache]: Analyzing trace with hash 439931723, now seen corresponding path program 1 times [2020-12-22 08:12:26,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:26,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899182393] [2020-12-22 08:12:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:27,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:27,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899182393] [2020-12-22 08:12:27,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:27,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:12:27,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873055152] [2020-12-22 08:12:27,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 08:12:27,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:27,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 08:12:27,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 08:12:27,513 INFO L87 Difference]: Start difference. First operand 7005 states and 10739 transitions. Second operand 4 states. [2020-12-22 08:12:28,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:28,333 INFO L93 Difference]: Finished difference Result 20745 states and 31780 transitions. [2020-12-22 08:12:28,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:12:28,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 304 [2020-12-22 08:12:28,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:28,421 INFO L225 Difference]: With dead ends: 20745 [2020-12-22 08:12:28,422 INFO L226 Difference]: Without dead ends: 13751 [2020-12-22 08:12:28,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:12:28,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13751 states. [2020-12-22 08:12:29,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13751 to 13563. [2020-12-22 08:12:29,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13563 states. [2020-12-22 08:12:29,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13563 states to 13563 states and 20701 transitions. [2020-12-22 08:12:29,133 INFO L78 Accepts]: Start accepts. Automaton has 13563 states and 20701 transitions. Word has length 304 [2020-12-22 08:12:29,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:29,134 INFO L481 AbstractCegarLoop]: Abstraction has 13563 states and 20701 transitions. [2020-12-22 08:12:29,134 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 08:12:29,134 INFO L276 IsEmpty]: Start isEmpty. Operand 13563 states and 20701 transitions. [2020-12-22 08:12:29,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-12-22 08:12:29,162 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:29,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:29,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 08:12:29,163 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:29,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:29,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1626283281, now seen corresponding path program 1 times [2020-12-22 08:12:29,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:29,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451391846] [2020-12-22 08:12:29,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:29,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:29,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451391846] [2020-12-22 08:12:29,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:29,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:12:29,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951166875] [2020-12-22 08:12:29,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:12:29,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:29,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:12:29,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:29,449 INFO L87 Difference]: Start difference. First operand 13563 states and 20701 transitions. Second operand 3 states. [2020-12-22 08:12:30,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:30,823 INFO L93 Difference]: Finished difference Result 40056 states and 61063 transitions. [2020-12-22 08:12:30,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:12:30,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 306 [2020-12-22 08:12:30,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:30,903 INFO L225 Difference]: With dead ends: 40056 [2020-12-22 08:12:30,909 INFO L226 Difference]: Without dead ends: 26618 [2020-12-22 08:12:30,937 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:30,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26618 states. [2020-12-22 08:12:32,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26618 to 26430. [2020-12-22 08:12:32,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26430 states. [2020-12-22 08:12:32,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26430 states to 26430 states and 40126 transitions. [2020-12-22 08:12:32,255 INFO L78 Accepts]: Start accepts. Automaton has 26430 states and 40126 transitions. Word has length 306 [2020-12-22 08:12:32,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:32,256 INFO L481 AbstractCegarLoop]: Abstraction has 26430 states and 40126 transitions. [2020-12-22 08:12:32,256 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:12:32,256 INFO L276 IsEmpty]: Start isEmpty. Operand 26430 states and 40126 transitions. [2020-12-22 08:12:32,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-12-22 08:12:32,309 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:32,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:32,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 08:12:32,310 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:32,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:32,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1215354996, now seen corresponding path program 1 times [2020-12-22 08:12:32,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:32,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152123255] [2020-12-22 08:12:32,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:32,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:32,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152123255] [2020-12-22 08:12:32,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:32,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:12:32,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024099597] [2020-12-22 08:12:32,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:12:32,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:32,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:12:32,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:32,561 INFO L87 Difference]: Start difference. First operand 26430 states and 40126 transitions. Second operand 3 states. [2020-12-22 08:12:34,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:34,338 INFO L93 Difference]: Finished difference Result 79223 states and 120262 transitions. [2020-12-22 08:12:34,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:12:34,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 306 [2020-12-22 08:12:34,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:34,475 INFO L225 Difference]: With dead ends: 79223 [2020-12-22 08:12:34,475 INFO L226 Difference]: Without dead ends: 52831 [2020-12-22 08:12:34,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:34,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52831 states. [2020-12-22 08:12:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52831 to 26449. [2020-12-22 08:12:36,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26449 states. [2020-12-22 08:12:36,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26449 states to 26449 states and 40154 transitions. [2020-12-22 08:12:36,330 INFO L78 Accepts]: Start accepts. Automaton has 26449 states and 40154 transitions. Word has length 306 [2020-12-22 08:12:36,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:36,330 INFO L481 AbstractCegarLoop]: Abstraction has 26449 states and 40154 transitions. [2020-12-22 08:12:36,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:12:36,330 INFO L276 IsEmpty]: Start isEmpty. Operand 26449 states and 40154 transitions. [2020-12-22 08:12:36,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-12-22 08:12:36,368 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:36,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:36,369 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 08:12:36,369 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:36,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:36,370 INFO L82 PathProgramCache]: Analyzing trace with hash 466565083, now seen corresponding path program 1 times [2020-12-22 08:12:36,370 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:36,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361408153] [2020-12-22 08:12:36,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:36,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:36,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361408153] [2020-12-22 08:12:36,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:36,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:12:36,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214971314] [2020-12-22 08:12:36,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:12:36,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:36,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:12:36,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:36,516 INFO L87 Difference]: Start difference. First operand 26449 states and 40154 transitions. Second operand 3 states. [2020-12-22 08:12:38,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:38,478 INFO L93 Difference]: Finished difference Result 79242 states and 120283 transitions. [2020-12-22 08:12:38,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:12:38,479 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 307 [2020-12-22 08:12:38,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:38,600 INFO L225 Difference]: With dead ends: 79242 [2020-12-22 08:12:38,600 INFO L226 Difference]: Without dead ends: 52849 [2020-12-22 08:12:38,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:38,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52849 states. [2020-12-22 08:12:39,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52849 to 26467. [2020-12-22 08:12:39,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26467 states. [2020-12-22 08:12:40,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26467 states to 26467 states and 40175 transitions. [2020-12-22 08:12:40,027 INFO L78 Accepts]: Start accepts. Automaton has 26467 states and 40175 transitions. Word has length 307 [2020-12-22 08:12:40,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:40,027 INFO L481 AbstractCegarLoop]: Abstraction has 26467 states and 40175 transitions. [2020-12-22 08:12:40,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:12:40,027 INFO L276 IsEmpty]: Start isEmpty. Operand 26467 states and 40175 transitions. [2020-12-22 08:12:40,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2020-12-22 08:12:40,058 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:40,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:40,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 08:12:40,059 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:40,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:40,060 INFO L82 PathProgramCache]: Analyzing trace with hash -806361433, now seen corresponding path program 1 times [2020-12-22 08:12:40,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:40,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948006863] [2020-12-22 08:12:40,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:40,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:40,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:40,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948006863] [2020-12-22 08:12:40,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:40,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 08:12:40,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93562937] [2020-12-22 08:12:40,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 08:12:40,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:40,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 08:12:40,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:12:40,765 INFO L87 Difference]: Start difference. First operand 26467 states and 40175 transitions. Second operand 5 states. [2020-12-22 08:12:43,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:43,419 INFO L93 Difference]: Finished difference Result 78146 states and 118490 transitions. [2020-12-22 08:12:43,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:12:43,421 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 308 [2020-12-22 08:12:43,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:43,507 INFO L225 Difference]: With dead ends: 78146 [2020-12-22 08:12:43,507 INFO L226 Difference]: Without dead ends: 51722 [2020-12-22 08:12:43,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:12:43,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51722 states. [2020-12-22 08:12:45,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51722 to 51558. [2020-12-22 08:12:45,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51558 states. [2020-12-22 08:12:46,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51558 states to 51558 states and 77747 transitions. [2020-12-22 08:12:46,068 INFO L78 Accepts]: Start accepts. Automaton has 51558 states and 77747 transitions. Word has length 308 [2020-12-22 08:12:46,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:46,069 INFO L481 AbstractCegarLoop]: Abstraction has 51558 states and 77747 transitions. [2020-12-22 08:12:46,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 08:12:46,069 INFO L276 IsEmpty]: Start isEmpty. Operand 51558 states and 77747 transitions. [2020-12-22 08:12:46,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-12-22 08:12:46,122 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:46,123 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:46,123 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 08:12:46,123 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:46,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:46,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1105996861, now seen corresponding path program 1 times [2020-12-22 08:12:46,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:46,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477111384] [2020-12-22 08:12:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:46,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:46,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477111384] [2020-12-22 08:12:46,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:46,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 08:12:46,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620600524] [2020-12-22 08:12:46,823 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 08:12:46,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:46,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 08:12:46,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 08:12:46,824 INFO L87 Difference]: Start difference. First operand 51558 states and 77747 transitions. Second operand 4 states. [2020-12-22 08:12:51,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:12:51,296 INFO L93 Difference]: Finished difference Result 152450 states and 229673 transitions. [2020-12-22 08:12:51,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 08:12:51,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 310 [2020-12-22 08:12:51,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:12:51,434 INFO L225 Difference]: With dead ends: 152450 [2020-12-22 08:12:51,435 INFO L226 Difference]: Without dead ends: 101018 [2020-12-22 08:12:51,483 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 08:12:51,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101018 states. [2020-12-22 08:12:56,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101018 to 100810. [2020-12-22 08:12:56,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100810 states. [2020-12-22 08:12:56,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100810 states to 100810 states and 151029 transitions. [2020-12-22 08:12:56,650 INFO L78 Accepts]: Start accepts. Automaton has 100810 states and 151029 transitions. Word has length 310 [2020-12-22 08:12:56,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:12:56,650 INFO L481 AbstractCegarLoop]: Abstraction has 100810 states and 151029 transitions. [2020-12-22 08:12:56,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 08:12:56,650 INFO L276 IsEmpty]: Start isEmpty. Operand 100810 states and 151029 transitions. [2020-12-22 08:12:56,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-12-22 08:12:56,795 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:12:56,796 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:12:56,796 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 08:12:56,797 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:12:56,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:12:56,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1572021272, now seen corresponding path program 1 times [2020-12-22 08:12:56,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:12:56,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713682679] [2020-12-22 08:12:56,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:12:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:12:57,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:12:57,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713682679] [2020-12-22 08:12:57,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:12:57,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:12:57,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913971011] [2020-12-22 08:12:57,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:12:57,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:12:57,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:12:57,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:12:57,050 INFO L87 Difference]: Start difference. First operand 100810 states and 151029 transitions. Second operand 3 states. [2020-12-22 08:13:06,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:13:06,316 INFO L93 Difference]: Finished difference Result 297852 states and 445699 transitions. [2020-12-22 08:13:06,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:13:06,317 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2020-12-22 08:13:06,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:13:06,666 INFO L225 Difference]: With dead ends: 297852 [2020-12-22 08:13:06,667 INFO L226 Difference]: Without dead ends: 197556 [2020-12-22 08:13:06,811 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:13:06,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197556 states. [2020-12-22 08:13:16,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197556 to 197348. [2020-12-22 08:13:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197348 states. [2020-12-22 08:13:17,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197348 states to 197348 states and 293657 transitions. [2020-12-22 08:13:17,107 INFO L78 Accepts]: Start accepts. Automaton has 197348 states and 293657 transitions. Word has length 312 [2020-12-22 08:13:17,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:13:17,108 INFO L481 AbstractCegarLoop]: Abstraction has 197348 states and 293657 transitions. [2020-12-22 08:13:17,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:13:17,108 INFO L276 IsEmpty]: Start isEmpty. Operand 197348 states and 293657 transitions. [2020-12-22 08:13:17,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2020-12-22 08:13:17,263 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:13:17,263 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:13:17,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 08:13:17,264 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:13:17,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:13:17,264 INFO L82 PathProgramCache]: Analyzing trace with hash 898031965, now seen corresponding path program 1 times [2020-12-22 08:13:17,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:13:17,265 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516637954] [2020-12-22 08:13:17,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:13:17,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:13:17,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:13:17,818 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516637954] [2020-12-22 08:13:17,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:13:17,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:13:17,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79300337] [2020-12-22 08:13:17,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:13:17,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:13:17,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:13:17,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:13:17,821 INFO L87 Difference]: Start difference. First operand 197348 states and 293657 transitions. Second operand 3 states. [2020-12-22 08:13:34,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 08:13:34,817 INFO L93 Difference]: Finished difference Result 591554 states and 880173 transitions. [2020-12-22 08:13:34,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 08:13:34,818 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 312 [2020-12-22 08:13:34,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 08:13:35,760 INFO L225 Difference]: With dead ends: 591554 [2020-12-22 08:13:35,760 INFO L226 Difference]: Without dead ends: 394478 [2020-12-22 08:13:36,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:13:36,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394478 states. [2020-12-22 08:13:48,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394478 to 197462. [2020-12-22 08:13:48,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197462 states. [2020-12-22 08:13:48,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197462 states to 197462 states and 293825 transitions. [2020-12-22 08:13:48,947 INFO L78 Accepts]: Start accepts. Automaton has 197462 states and 293825 transitions. Word has length 312 [2020-12-22 08:13:48,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 08:13:48,947 INFO L481 AbstractCegarLoop]: Abstraction has 197462 states and 293825 transitions. [2020-12-22 08:13:48,947 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 08:13:48,948 INFO L276 IsEmpty]: Start isEmpty. Operand 197462 states and 293825 transitions. [2020-12-22 08:13:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-12-22 08:13:49,102 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 08:13:49,102 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 08:13:49,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 08:13:49,103 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 08:13:49,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 08:13:49,103 INFO L82 PathProgramCache]: Analyzing trace with hash -2030886708, now seen corresponding path program 1 times [2020-12-22 08:13:49,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 08:13:49,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351000448] [2020-12-22 08:13:49,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 08:13:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 08:13:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 08:13:49,632 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351000448] [2020-12-22 08:13:49,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 08:13:49,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 08:13:49,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811847466] [2020-12-22 08:13:49,633 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 08:13:49,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 08:13:49,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 08:13:49,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 08:13:49,634 INFO L87 Difference]: Start difference. First operand 197462 states and 293825 transitions. Second operand 3 states.