java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:36:20,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:36:20,875 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:36:20,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:36:20,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:36:20,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:36:20,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:36:20,892 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:36:20,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:36:20,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:36:20,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:36:20,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:36:20,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:36:20,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:36:20,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:36:20,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:36:20,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:36:20,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:36:20,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:36:20,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:36:20,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:36:20,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:36:20,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:36:20,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:36:20,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-14 23:36:20,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-14 23:36:20,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-14 23:36:20,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-14 23:36:20,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-14 23:36:20,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-14 23:36:20,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:36:20,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:36:20,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:36:20,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:36:20,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:36:20,920 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:36:20,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:36:20,921 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:36:20,921 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:36:20,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:36:20,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:36:20,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:36:20,938 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:36:20,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:36:20,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:36:20,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:36:20,940 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:36:20,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:36:20,941 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:36:20,941 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:36:20,941 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:36:20,941 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:36:20,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:36:20,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:36:20,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:36:20,942 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:36:20,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:36:20,942 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:36:20,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:36:20,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:36:20,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:36:20,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:36:20,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:36:20,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:36:20,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:36:20,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:36:20,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:36:20,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:36:20,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:36:20,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:36:20,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:36:21,251 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:36:21,265 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:36:21,269 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:36:21,271 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:36:21,271 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:36:21,272 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2019-10-14 23:36:21,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ea659ff/f78791b5921143f2a58d4d09262bbe1e/FLAGdc0951961 [2019-10-14 23:36:21,933 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:36:21,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2019-10-14 23:36:21,950 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ea659ff/f78791b5921143f2a58d4d09262bbe1e/FLAGdc0951961 [2019-10-14 23:36:22,271 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73ea659ff/f78791b5921143f2a58d4d09262bbe1e [2019-10-14 23:36:22,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:36:22,281 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:36:22,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:22,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:36:22,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:36:22,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:22" (1/1) ... [2019-10-14 23:36:22,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1118f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22, skipping insertion in model container [2019-10-14 23:36:22,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:36:22" (1/1) ... [2019-10-14 23:36:22,297 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:36:22,360 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:36:22,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:22,822 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:36:22,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:36:22,968 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:36:22,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22 WrapperNode [2019-10-14 23:36:22,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:36:22,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:36:22,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:36:22,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:36:22,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22" (1/1) ... [2019-10-14 23:36:22,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22" (1/1) ... [2019-10-14 23:36:23,005 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22" (1/1) ... [2019-10-14 23:36:23,005 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22" (1/1) ... [2019-10-14 23:36:23,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22" (1/1) ... [2019-10-14 23:36:23,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22" (1/1) ... [2019-10-14 23:36:23,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22" (1/1) ... [2019-10-14 23:36:23,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:36:23,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:36:23,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:36:23,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:36:23,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22" (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 [2019-10-14 23:36:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:36:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:36:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-14 23:36:23,159 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-14 23:36:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-14 23:36:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-14 23:36:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-14 23:36:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-14 23:36:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-14 23:36:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-14 23:36:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-14 23:36:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-14 23:36:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-14 23:36:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:36:23,163 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:23,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:23,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:23,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-14 23:36:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-14 23:36:23,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-14 23:36:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-14 23:36:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-14 23:36:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-14 23:36:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-14 23:36:23,167 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-14 23:36:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-14 23:36:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-14 23:36:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-14 23:36:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-14 23:36:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-14 23:36:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-14 23:36:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-14 23:36:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-14 23:36:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-14 23:36:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-14 23:36:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-14 23:36:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:36:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:36:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-14 23:36:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-14 23:36:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-14 23:36:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-14 23:36:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-14 23:36:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-14 23:36:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-14 23:36:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-14 23:36:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:36:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-14 23:36:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-14 23:36:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-14 23:36:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-14 23:36:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-14 23:36:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-14 23:36:23,172 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-14 23:36:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-14 23:36:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-14 23:36:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-14 23:36:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:36:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:36:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-14 23:36:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-14 23:36:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-14 23:36:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-14 23:36:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:36:23,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:36:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:36:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-14 23:36:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:36:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-14 23:36:23,175 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-14 23:36:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:36:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-14 23:36:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-14 23:36:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-14 23:36:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-14 23:36:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-14 23:36:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-14 23:36:23,177 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-14 23:36:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-14 23:36:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-14 23:36:23,178 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-14 23:36:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-14 23:36:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-14 23:36:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-14 23:36:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:36:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:36:23,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:36:24,215 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:36:24,216 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-14 23:36:24,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:36:24 BoogieIcfgContainer [2019-10-14 23:36:24,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:36:24,218 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:36:24,218 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:36:24,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:36:24,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:36:22" (1/3) ... [2019-10-14 23:36:24,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225a7689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:36:24, skipping insertion in model container [2019-10-14 23:36:24,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:36:22" (2/3) ... [2019-10-14 23:36:24,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225a7689 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:36:24, skipping insertion in model container [2019-10-14 23:36:24,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:36:24" (3/3) ... [2019-10-14 23:36:24,227 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2019-10-14 23:36:24,237 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:36:24,246 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:36:24,257 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:36:24,285 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:36:24,285 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:36:24,286 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:36:24,286 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:36:24,286 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:36:24,286 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:36:24,286 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:36:24,286 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:36:24,308 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2019-10-14 23:36:24,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-14 23:36:24,318 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:24,319 INFO L380 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] [2019-10-14 23:36:24,321 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:24,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:24,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1697845513, now seen corresponding path program 1 times [2019-10-14 23:36:24,336 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:24,336 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485084938] [2019-10-14 23:36:24,337 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:24,337 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:24,337 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:25,040 WARN L191 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:25,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:25,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:25,168 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485084938] [2019-10-14 23:36:25,169 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:25,169 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:36:25,170 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940294418] [2019-10-14 23:36:25,176 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:36:25,179 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:25,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:36:25,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:36:25,199 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 3 states. [2019-10-14 23:36:26,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:26,272 INFO L93 Difference]: Finished difference Result 261 states and 345 transitions. [2019-10-14 23:36:26,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:36:26,274 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-10-14 23:36:26,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:26,289 INFO L225 Difference]: With dead ends: 261 [2019-10-14 23:36:26,290 INFO L226 Difference]: Without dead ends: 141 [2019-10-14 23:36:26,294 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:36:26,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-10-14 23:36:26,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 111. [2019-10-14 23:36:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-10-14 23:36:26,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 130 transitions. [2019-10-14 23:36:26,377 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 130 transitions. Word has length 52 [2019-10-14 23:36:26,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:26,378 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 130 transitions. [2019-10-14 23:36:26,378 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:36:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 130 transitions. [2019-10-14 23:36:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-14 23:36:26,381 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:26,381 INFO L380 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] [2019-10-14 23:36:26,382 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:26,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:26,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1118186443, now seen corresponding path program 1 times [2019-10-14 23:36:26,382 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:26,383 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398731942] [2019-10-14 23:36:26,383 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:26,383 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:26,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:26,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:26,723 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:26,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:26,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:26,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398731942] [2019-10-14 23:36:26,792 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:26,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:36:26,792 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916522962] [2019-10-14 23:36:26,805 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:36:26,805 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:26,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:36:26,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:36:26,806 INFO L87 Difference]: Start difference. First operand 111 states and 130 transitions. Second operand 4 states. [2019-10-14 23:36:27,341 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:27,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:27,962 INFO L93 Difference]: Finished difference Result 194 states and 236 transitions. [2019-10-14 23:36:27,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:36:27,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2019-10-14 23:36:27,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:27,968 INFO L225 Difference]: With dead ends: 194 [2019-10-14 23:36:27,969 INFO L226 Difference]: Without dead ends: 125 [2019-10-14 23:36:27,972 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:36:27,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-14 23:36:28,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 102. [2019-10-14 23:36:28,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-10-14 23:36:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2019-10-14 23:36:28,024 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 53 [2019-10-14 23:36:28,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:28,024 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2019-10-14 23:36:28,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:36:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2019-10-14 23:36:28,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-14 23:36:28,047 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:28,048 INFO L380 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] [2019-10-14 23:36:28,048 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:28,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:28,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1001368997, now seen corresponding path program 1 times [2019-10-14 23:36:28,049 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:28,049 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194003468] [2019-10-14 23:36:28,049 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:28,049 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:28,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,362 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:28,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:28,415 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194003468] [2019-10-14 23:36:28,415 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:28,415 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-14 23:36:28,416 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174331390] [2019-10-14 23:36:28,416 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-14 23:36:28,416 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:28,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-14 23:36:28,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-14 23:36:28,418 INFO L87 Difference]: Start difference. First operand 102 states and 118 transitions. Second operand 4 states. [2019-10-14 23:36:28,803 WARN L191 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:29,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:29,416 INFO L93 Difference]: Finished difference Result 203 states and 250 transitions. [2019-10-14 23:36:29,416 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-14 23:36:29,416 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2019-10-14 23:36:29,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:29,418 INFO L225 Difference]: With dead ends: 203 [2019-10-14 23:36:29,418 INFO L226 Difference]: Without dead ends: 125 [2019-10-14 23:36:29,419 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:36:29,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2019-10-14 23:36:29,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 102. [2019-10-14 23:36:29,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-10-14 23:36:29,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2019-10-14 23:36:29,450 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 57 [2019-10-14 23:36:29,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:29,450 INFO L462 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2019-10-14 23:36:29,450 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-14 23:36:29,450 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2019-10-14 23:36:29,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-14 23:36:29,452 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:29,452 INFO L380 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] [2019-10-14 23:36:29,452 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:29,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:29,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1834066652, now seen corresponding path program 1 times [2019-10-14 23:36:29,453 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:29,453 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899100844] [2019-10-14 23:36:29,453 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:29,453 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:29,453 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:29,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,755 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:29,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:29,855 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899100844] [2019-10-14 23:36:29,855 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:29,855 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:36:29,855 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874230341] [2019-10-14 23:36:29,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:36:29,856 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:29,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:36:29,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:36:29,857 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand 6 states. [2019-10-14 23:36:30,311 WARN L191 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:31,499 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:31,973 INFO L93 Difference]: Finished difference Result 298 states and 368 transitions. [2019-10-14 23:36:31,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:36:31,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-10-14 23:36:31,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:31,978 INFO L225 Difference]: With dead ends: 298 [2019-10-14 23:36:31,978 INFO L226 Difference]: Without dead ends: 220 [2019-10-14 23:36:31,979 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:36:31,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2019-10-14 23:36:32,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 179. [2019-10-14 23:36:32,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-10-14 23:36:32,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 206 transitions. [2019-10-14 23:36:32,022 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 206 transitions. Word has length 65 [2019-10-14 23:36:32,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:32,022 INFO L462 AbstractCegarLoop]: Abstraction has 179 states and 206 transitions. [2019-10-14 23:36:32,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:36:32,022 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 206 transitions. [2019-10-14 23:36:32,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-14 23:36:32,024 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:32,024 INFO L380 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] [2019-10-14 23:36:32,024 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:32,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:32,025 INFO L82 PathProgramCache]: Analyzing trace with hash 476831218, now seen corresponding path program 1 times [2019-10-14 23:36:32,025 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:32,025 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448647746] [2019-10-14 23:36:32,025 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:32,026 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:32,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,351 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:32,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:32,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:32,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448647746] [2019-10-14 23:36:32,457 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:32,458 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:36:32,458 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701561883] [2019-10-14 23:36:32,460 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:36:32,460 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:32,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:36:32,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:36:32,461 INFO L87 Difference]: Start difference. First operand 179 states and 206 transitions. Second operand 8 states. [2019-10-14 23:36:32,991 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:34,178 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:34,513 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:34,788 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:35,068 WARN L191 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:35,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:35,701 INFO L93 Difference]: Finished difference Result 486 states and 614 transitions. [2019-10-14 23:36:35,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-14 23:36:35,704 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2019-10-14 23:36:35,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:35,707 INFO L225 Difference]: With dead ends: 486 [2019-10-14 23:36:35,708 INFO L226 Difference]: Without dead ends: 331 [2019-10-14 23:36:35,710 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:36:35,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2019-10-14 23:36:35,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 291. [2019-10-14 23:36:35,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2019-10-14 23:36:35,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 341 transitions. [2019-10-14 23:36:35,805 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 341 transitions. Word has length 79 [2019-10-14 23:36:35,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:35,806 INFO L462 AbstractCegarLoop]: Abstraction has 291 states and 341 transitions. [2019-10-14 23:36:35,806 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:36:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 341 transitions. [2019-10-14 23:36:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-14 23:36:35,808 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:35,808 INFO L380 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] [2019-10-14 23:36:35,809 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:35,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:35,809 INFO L82 PathProgramCache]: Analyzing trace with hash 786989304, now seen corresponding path program 1 times [2019-10-14 23:36:35,809 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:35,810 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121019526] [2019-10-14 23:36:35,810 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:35,810 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:35,810 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,148 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:36,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:36,285 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121019526] [2019-10-14 23:36:36,286 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:36,286 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-14 23:36:36,286 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447529740] [2019-10-14 23:36:36,287 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-14 23:36:36,287 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:36,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-14 23:36:36,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-10-14 23:36:36,288 INFO L87 Difference]: Start difference. First operand 291 states and 341 transitions. Second operand 10 states. [2019-10-14 23:36:36,906 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:38,198 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:38,520 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:38,784 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:39,033 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:39,453 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:40,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:40,291 INFO L93 Difference]: Finished difference Result 651 states and 830 transitions. [2019-10-14 23:36:40,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:36:40,292 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 83 [2019-10-14 23:36:40,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:40,299 INFO L225 Difference]: With dead ends: 651 [2019-10-14 23:36:40,299 INFO L226 Difference]: Without dead ends: 485 [2019-10-14 23:36:40,301 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2019-10-14 23:36:40,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2019-10-14 23:36:40,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 417. [2019-10-14 23:36:40,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2019-10-14 23:36:40,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 496 transitions. [2019-10-14 23:36:40,387 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 496 transitions. Word has length 83 [2019-10-14 23:36:40,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:40,388 INFO L462 AbstractCegarLoop]: Abstraction has 417 states and 496 transitions. [2019-10-14 23:36:40,388 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-14 23:36:40,388 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 496 transitions. [2019-10-14 23:36:40,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-14 23:36:40,390 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:40,391 INFO L380 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] [2019-10-14 23:36:40,391 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:40,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:40,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1116755065, now seen corresponding path program 1 times [2019-10-14 23:36:40,391 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:40,392 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767762536] [2019-10-14 23:36:40,392 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:40,392 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:40,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,663 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:40,751 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767762536] [2019-10-14 23:36:40,751 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:40,751 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-14 23:36:40,751 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234053054] [2019-10-14 23:36:40,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:36:40,752 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:40,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:36:40,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:36:40,753 INFO L87 Difference]: Start difference. First operand 417 states and 496 transitions. Second operand 8 states. [2019-10-14 23:36:41,779 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:42,020 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:42,284 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:43,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:43,165 INFO L93 Difference]: Finished difference Result 769 states and 955 transitions. [2019-10-14 23:36:43,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:36:43,166 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2019-10-14 23:36:43,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:43,169 INFO L225 Difference]: With dead ends: 769 [2019-10-14 23:36:43,170 INFO L226 Difference]: Without dead ends: 473 [2019-10-14 23:36:43,171 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:36:43,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-10-14 23:36:43,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 417. [2019-10-14 23:36:43,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2019-10-14 23:36:43,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 495 transitions. [2019-10-14 23:36:43,248 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 495 transitions. Word has length 83 [2019-10-14 23:36:43,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:43,248 INFO L462 AbstractCegarLoop]: Abstraction has 417 states and 495 transitions. [2019-10-14 23:36:43,248 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:36:43,248 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 495 transitions. [2019-10-14 23:36:43,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-14 23:36:43,250 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:43,250 INFO L380 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] [2019-10-14 23:36:43,251 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:43,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:43,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1044368507, now seen corresponding path program 1 times [2019-10-14 23:36:43,251 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:43,252 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735224589] [2019-10-14 23:36:43,252 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:43,252 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:43,252 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,539 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:43,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:43,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:43,739 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735224589] [2019-10-14 23:36:43,739 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:43,740 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:36:43,740 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893449358] [2019-10-14 23:36:43,741 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:36:43,741 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:43,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:36:43,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:36:43,749 INFO L87 Difference]: Start difference. First operand 417 states and 495 transitions. Second operand 12 states. [2019-10-14 23:36:44,704 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:44,977 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:45,242 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:45,933 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:46,200 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2019-10-14 23:36:46,481 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:46,730 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:47,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:47,546 INFO L93 Difference]: Finished difference Result 834 states and 1039 transitions. [2019-10-14 23:36:47,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-10-14 23:36:47,547 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2019-10-14 23:36:47,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:47,553 INFO L225 Difference]: With dead ends: 834 [2019-10-14 23:36:47,553 INFO L226 Difference]: Without dead ends: 441 [2019-10-14 23:36:47,555 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2019-10-14 23:36:47,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2019-10-14 23:36:47,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 390. [2019-10-14 23:36:47,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 390 states. [2019-10-14 23:36:47,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 461 transitions. [2019-10-14 23:36:47,649 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 461 transitions. Word has length 83 [2019-10-14 23:36:47,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:47,650 INFO L462 AbstractCegarLoop]: Abstraction has 390 states and 461 transitions. [2019-10-14 23:36:47,650 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:36:47,650 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 461 transitions. [2019-10-14 23:36:47,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-14 23:36:47,652 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:36:47,652 INFO L380 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] [2019-10-14 23:36:47,652 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:36:47,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:36:47,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1113116411, now seen corresponding path program 1 times [2019-10-14 23:36:47,653 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:36:47,653 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068558373] [2019-10-14 23:36:47,653 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:47,653 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:36:47,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:36:47,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,957 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:47,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:48,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:36:48,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:36:48,078 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068558373] [2019-10-14 23:36:48,078 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:36:48,079 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-10-14 23:36:48,079 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046298392] [2019-10-14 23:36:48,079 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-14 23:36:48,079 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:36:48,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-14 23:36:48,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:36:48,080 INFO L87 Difference]: Start difference. First operand 390 states and 461 transitions. Second operand 13 states. [2019-10-14 23:36:48,934 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:49,201 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:49,447 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2019-10-14 23:36:50,425 WARN L191 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2019-10-14 23:36:51,161 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2019-10-14 23:36:51,506 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:51,798 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-14 23:36:52,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:36:52,326 INFO L93 Difference]: Finished difference Result 771 states and 924 transitions. [2019-10-14 23:36:52,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-14 23:36:52,327 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 84 [2019-10-14 23:36:52,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:36:52,328 INFO L225 Difference]: With dead ends: 771 [2019-10-14 23:36:52,328 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:36:52,332 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=121, Invalid=431, Unknown=0, NotChecked=0, Total=552 [2019-10-14 23:36:52,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:36:52,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:36:52,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:36:52,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:36:52,336 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2019-10-14 23:36:52,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:36:52,336 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:36:52,336 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-14 23:36:52,337 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:36:52,337 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:36:52,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:36:53,103 WARN L191 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 221 [2019-10-14 23:36:53,982 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 216 [2019-10-14 23:36:54,490 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 216 [2019-10-14 23:36:54,923 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 212 [2019-10-14 23:36:55,518 WARN L191 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 16 [2019-10-14 23:36:55,673 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2019-10-14 23:36:55,828 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2019-10-14 23:36:55,996 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 20 [2019-10-14 23:36:56,154 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 1 [2019-10-14 23:36:56,506 WARN L191 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 21 [2019-10-14 23:36:56,887 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 19 [2019-10-14 23:36:57,112 WARN L191 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-10-14 23:36:57,285 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2019-10-14 23:36:57,663 WARN L191 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 24 [2019-10-14 23:36:58,168 WARN L191 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 21 [2019-10-14 23:36:58,329 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 1 [2019-10-14 23:36:58,782 WARN L191 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 16 [2019-10-14 23:36:58,948 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2019-10-14 23:36:59,170 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 19 [2019-10-14 23:36:59,471 WARN L191 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 11 [2019-10-14 23:36:59,644 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2019-10-14 23:36:59,806 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 22 [2019-10-14 23:36:59,989 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1