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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:18:54,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:18:54,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:18:54,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:18:54,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:18:54,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:18:54,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:18:54,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:18:54,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:18:54,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:18:54,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:18:54,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:18:54,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:18:54,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:18:54,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:18:54,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:18:54,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:18:54,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:18:54,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:18:54,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:18:54,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:18:54,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:18:54,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:18:54,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:18:54,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:18:54,901 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:18:54,901 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:18:54,902 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:18:54,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:18:54,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:18:54,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:18:54,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:18:54,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:18:54,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:18:54,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:18:54,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:18:54,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:18:54,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:18:54,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:18:54,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:18:54,912 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:18:54,913 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 [2019-10-13 23:18:54,946 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:18:54,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:18:54,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:18:54,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:18:54,948 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:18:54,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:18:54,949 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:18:54,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:18:54,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:18:54,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:18:54,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:18:54,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:18:54,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:18:54,951 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:18:54,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:18:54,952 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:18:54,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:18:54,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:18:54,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:18:54,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:18:54,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:18:54,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:18:54,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:18:54,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:18:54,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:18:54,955 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:18:54,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:18:54,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:18:54,955 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:18:55,211 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:18:55,224 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:18:55,227 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:18:55,229 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:18:55,229 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:18:55,230 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2019-10-13 23:18:55,301 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50242610a/644507aee50844d8adea8ba33586562e/FLAGf294d946b [2019-10-13 23:18:55,864 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:18:55,865 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product57.cil.c [2019-10-13 23:18:55,878 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50242610a/644507aee50844d8adea8ba33586562e/FLAGf294d946b [2019-10-13 23:18:56,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50242610a/644507aee50844d8adea8ba33586562e [2019-10-13 23:18:56,132 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:18:56,133 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:18:56,134 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:56,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:18:56,138 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:18:56,139 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:56" (1/1) ... [2019-10-13 23:18:56,142 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bbca3b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56, skipping insertion in model container [2019-10-13 23:18:56,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:56" (1/1) ... [2019-10-13 23:18:56,149 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:18:56,212 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:18:56,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:56,662 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:18:56,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:56,807 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:18:56,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56 WrapperNode [2019-10-13 23:18:56,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:56,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:18:56,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:18:56,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:18:56,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56" (1/1) ... [2019-10-13 23:18:56,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56" (1/1) ... [2019-10-13 23:18:56,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56" (1/1) ... [2019-10-13 23:18:56,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56" (1/1) ... [2019-10-13 23:18:56,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56" (1/1) ... [2019-10-13 23:18:56,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56" (1/1) ... [2019-10-13 23:18:56,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56" (1/1) ... [2019-10-13 23:18:56,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:18:56,895 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:18:56,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:18:56,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:18:56,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:18:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:18:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:18:56,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:18:56,949 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:18:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:18:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:18:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:18:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:18:56,950 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:18:56,951 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:18:56,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:18:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:18:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:56,953 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:18:56,954 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:18:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:18:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:18:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:18:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:18:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:18:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:18:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:18:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:18:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:18:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:18:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:18:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:18:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:18:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:18:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:18:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:18:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:18:56,958 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:18:56,959 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:18:56,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:56,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:18:56,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:18:56,963 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:18:56,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:18:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:18:56,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:18:58,539 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:18:58,539 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:18:58,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:58 BoogieIcfgContainer [2019-10-13 23:18:58,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:18:58,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:18:58,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:18:58,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:18:58,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:18:56" (1/3) ... [2019-10-13 23:18:58,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2f94cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:58, skipping insertion in model container [2019-10-13 23:18:58,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:56" (2/3) ... [2019-10-13 23:18:58,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b2f94cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:58, skipping insertion in model container [2019-10-13 23:18:58,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:58" (3/3) ... [2019-10-13 23:18:58,552 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2019-10-13 23:18:58,562 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:18:58,572 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:18:58,583 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:18:58,609 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:18:58,609 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:18:58,609 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:18:58,610 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:18:58,610 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:18:58,610 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:18:58,610 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:18:58,610 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:18:58,632 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states. [2019-10-13 23:18:58,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 23:18:58,642 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:58,643 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:58,645 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:58,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:58,651 INFO L82 PathProgramCache]: Analyzing trace with hash 2066518771, now seen corresponding path program 1 times [2019-10-13 23:18:58,660 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:58,660 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078895831] [2019-10-13 23:18:58,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:58,661 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:58,661 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:58,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:58,958 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:58,959 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078895831] [2019-10-13 23:18:58,960 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:58,961 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:18:58,962 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704182842] [2019-10-13 23:18:58,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:18:58,967 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:58,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:18:58,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:58,984 INFO L87 Difference]: Start difference. First operand 160 states. Second operand 2 states. [2019-10-13 23:18:59,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:59,027 INFO L93 Difference]: Finished difference Result 250 states and 297 transitions. [2019-10-13 23:18:59,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:18:59,028 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-13 23:18:59,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:59,042 INFO L225 Difference]: With dead ends: 250 [2019-10-13 23:18:59,042 INFO L226 Difference]: Without dead ends: 127 [2019-10-13 23:18:59,047 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:59,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-10-13 23:18:59,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2019-10-13 23:18:59,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2019-10-13 23:18:59,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 144 transitions. [2019-10-13 23:18:59,107 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 144 transitions. Word has length 52 [2019-10-13 23:18:59,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:59,107 INFO L462 AbstractCegarLoop]: Abstraction has 127 states and 144 transitions. [2019-10-13 23:18:59,108 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:18:59,108 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 144 transitions. [2019-10-13 23:18:59,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 23:18:59,112 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:59,112 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:59,112 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:59,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:59,113 INFO L82 PathProgramCache]: Analyzing trace with hash 892628661, now seen corresponding path program 1 times [2019-10-13 23:18:59,113 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:59,113 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023332326] [2019-10-13 23:18:59,113 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:59,114 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:59,114 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:59,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:59,362 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023332326] [2019-10-13 23:18:59,363 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:59,363 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:18:59,363 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571143295] [2019-10-13 23:18:59,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:18:59,365 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:59,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:18:59,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:18:59,366 INFO L87 Difference]: Start difference. First operand 127 states and 144 transitions. Second operand 3 states. [2019-10-13 23:18:59,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:59,390 INFO L93 Difference]: Finished difference Result 208 states and 236 transitions. [2019-10-13 23:18:59,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:18:59,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-13 23:18:59,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:59,396 INFO L225 Difference]: With dead ends: 208 [2019-10-13 23:18:59,396 INFO L226 Difference]: Without dead ends: 119 [2019-10-13 23:18:59,400 INFO L600 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 [2019-10-13 23:18:59,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-10-13 23:18:59,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-10-13 23:18:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-13 23:18:59,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 133 transitions. [2019-10-13 23:18:59,418 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 133 transitions. Word has length 53 [2019-10-13 23:18:59,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:59,419 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 133 transitions. [2019-10-13 23:18:59,419 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:18:59,419 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 133 transitions. [2019-10-13 23:18:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-13 23:18:59,421 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:59,422 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:59,422 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:59,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:59,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1014031683, now seen corresponding path program 1 times [2019-10-13 23:18:59,422 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:59,423 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097661732] [2019-10-13 23:18:59,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:59,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:59,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:59,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:59,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:59,639 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097661732] [2019-10-13 23:18:59,639 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:59,639 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:59,640 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637250403] [2019-10-13 23:18:59,640 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:59,640 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:59,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:59,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:59,641 INFO L87 Difference]: Start difference. First operand 119 states and 133 transitions. Second operand 7 states. [2019-10-13 23:18:59,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:59,980 INFO L93 Difference]: Finished difference Result 213 states and 242 transitions. [2019-10-13 23:18:59,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:18:59,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-10-13 23:18:59,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:59,983 INFO L225 Difference]: With dead ends: 213 [2019-10-13 23:18:59,983 INFO L226 Difference]: Without dead ends: 119 [2019-10-13 23:18:59,986 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-13 23:18:59,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-10-13 23:19:00,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-10-13 23:19:00,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-10-13 23:19:00,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 132 transitions. [2019-10-13 23:19:00,010 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 132 transitions. Word has length 55 [2019-10-13 23:19:00,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:00,015 INFO L462 AbstractCegarLoop]: Abstraction has 119 states and 132 transitions. [2019-10-13 23:19:00,015 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:19:00,015 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 132 transitions. [2019-10-13 23:19:00,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-10-13 23:19:00,022 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:00,023 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:00,023 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:00,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:00,025 INFO L82 PathProgramCache]: Analyzing trace with hash -70838254, now seen corresponding path program 1 times [2019-10-13 23:19:00,026 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:00,026 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754302086] [2019-10-13 23:19:00,026 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:00,027 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:00,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:00,152 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754302086] [2019-10-13 23:19:00,152 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:00,152 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:19:00,152 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016865454] [2019-10-13 23:19:00,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:19:00,154 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:00,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:19:00,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:19:00,158 INFO L87 Difference]: Start difference. First operand 119 states and 132 transitions. Second operand 5 states. [2019-10-13 23:19:00,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:00,665 INFO L93 Difference]: Finished difference Result 303 states and 353 transitions. [2019-10-13 23:19:00,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:19:00,665 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-10-13 23:19:00,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:00,668 INFO L225 Difference]: With dead ends: 303 [2019-10-13 23:19:00,668 INFO L226 Difference]: Without dead ends: 209 [2019-10-13 23:19:00,669 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:19:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2019-10-13 23:19:00,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 194. [2019-10-13 23:19:00,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-10-13 23:19:00,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 215 transitions. [2019-10-13 23:19:00,699 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 215 transitions. Word has length 68 [2019-10-13 23:19:00,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:00,700 INFO L462 AbstractCegarLoop]: Abstraction has 194 states and 215 transitions. [2019-10-13 23:19:00,700 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:19:00,700 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 215 transitions. [2019-10-13 23:19:00,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-13 23:19:00,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:00,702 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:00,702 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:00,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:00,702 INFO L82 PathProgramCache]: Analyzing trace with hash 2098768733, now seen corresponding path program 1 times [2019-10-13 23:19:00,702 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:00,703 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217613405] [2019-10-13 23:19:00,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:00,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:00,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:00,826 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:19:00,826 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217613405] [2019-10-13 23:19:00,827 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:00,827 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:19:00,827 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828311263] [2019-10-13 23:19:00,828 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:19:00,828 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:00,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:19:00,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:19:00,830 INFO L87 Difference]: Start difference. First operand 194 states and 215 transitions. Second operand 7 states. [2019-10-13 23:19:01,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:01,387 INFO L93 Difference]: Finished difference Result 377 states and 431 transitions. [2019-10-13 23:19:01,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:19:01,388 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-10-13 23:19:01,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:01,391 INFO L225 Difference]: With dead ends: 377 [2019-10-13 23:19:01,391 INFO L226 Difference]: Without dead ends: 208 [2019-10-13 23:19:01,392 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:19:01,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2019-10-13 23:19:01,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 193. [2019-10-13 23:19:01,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2019-10-13 23:19:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 212 transitions. [2019-10-13 23:19:01,413 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 212 transitions. Word has length 77 [2019-10-13 23:19:01,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:01,413 INFO L462 AbstractCegarLoop]: Abstraction has 193 states and 212 transitions. [2019-10-13 23:19:01,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:19:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 212 transitions. [2019-10-13 23:19:01,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-10-13 23:19:01,415 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:01,415 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:01,416 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:01,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:01,416 INFO L82 PathProgramCache]: Analyzing trace with hash -719855939, now seen corresponding path program 1 times [2019-10-13 23:19:01,416 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:01,416 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302846790] [2019-10-13 23:19:01,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:01,417 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:01,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:01,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:01,649 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302846790] [2019-10-13 23:19:01,649 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:01,650 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:19:01,650 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125294402] [2019-10-13 23:19:01,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:19:01,651 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:01,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:19:01,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:19:01,651 INFO L87 Difference]: Start difference. First operand 193 states and 212 transitions. Second operand 12 states. [2019-10-13 23:19:02,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:02,580 INFO L93 Difference]: Finished difference Result 498 states and 568 transitions. [2019-10-13 23:19:02,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:19:02,581 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2019-10-13 23:19:02,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:02,584 INFO L225 Difference]: With dead ends: 498 [2019-10-13 23:19:02,585 INFO L226 Difference]: Without dead ends: 330 [2019-10-13 23:19:02,586 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:19:02,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-10-13 23:19:02,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 321. [2019-10-13 23:19:02,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2019-10-13 23:19:02,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 363 transitions. [2019-10-13 23:19:02,618 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 363 transitions. Word has length 90 [2019-10-13 23:19:02,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:02,619 INFO L462 AbstractCegarLoop]: Abstraction has 321 states and 363 transitions. [2019-10-13 23:19:02,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:19:02,619 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 363 transitions. [2019-10-13 23:19:02,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-10-13 23:19:02,621 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:02,621 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:02,622 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:02,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:02,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1861289177, now seen corresponding path program 1 times [2019-10-13 23:19:02,622 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:02,623 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597879526] [2019-10-13 23:19:02,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:02,623 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:02,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:02,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:02,765 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597879526] [2019-10-13 23:19:02,765 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:02,766 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:19:02,766 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075663777] [2019-10-13 23:19:02,767 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:19:02,767 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:02,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:19:02,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:19:02,767 INFO L87 Difference]: Start difference. First operand 321 states and 363 transitions. Second operand 9 states. [2019-10-13 23:19:03,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:03,693 INFO L93 Difference]: Finished difference Result 991 states and 1155 transitions. [2019-10-13 23:19:03,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:19:03,694 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 93 [2019-10-13 23:19:03,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:03,699 INFO L225 Difference]: With dead ends: 991 [2019-10-13 23:19:03,700 INFO L226 Difference]: Without dead ends: 752 [2019-10-13 23:19:03,701 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:19:03,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2019-10-13 23:19:03,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 655. [2019-10-13 23:19:03,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2019-10-13 23:19:03,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 747 transitions. [2019-10-13 23:19:03,750 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 747 transitions. Word has length 93 [2019-10-13 23:19:03,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:03,751 INFO L462 AbstractCegarLoop]: Abstraction has 655 states and 747 transitions. [2019-10-13 23:19:03,751 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:19:03,751 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 747 transitions. [2019-10-13 23:19:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-10-13 23:19:03,754 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:03,754 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:03,754 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:03,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:03,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1653320696, now seen corresponding path program 1 times [2019-10-13 23:19:03,755 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:03,755 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859936801] [2019-10-13 23:19:03,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:03,756 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:03,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:03,936 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 23:19:03,937 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859936801] [2019-10-13 23:19:03,937 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133621388] [2019-10-13 23:19:03,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:19:04,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:04,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:19:04,159 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:19:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 22 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:04,357 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:19:04,756 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-13 23:19:04,757 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1286545384] [2019-10-13 23:19:04,783 INFO L162 IcfgInterpreter]: Started Sifa with 112 locations of interest [2019-10-13 23:19:04,783 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:19:04,790 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:19:04,796 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:19:04,797 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:19:13,214 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:19:14,797 WARN L191 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:19:14,936 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:15,064 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:15,194 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:15,599 WARN L191 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:15,926 WARN L191 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:16,147 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:16,416 WARN L191 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:16,774 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:19:16,965 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:17,127 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:17,248 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:17,365 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:17,531 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:17,540 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:19:17,746 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:19:17,857 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:17,967 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:18,132 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:18,248 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:18,351 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:18,488 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:18,646 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:18,874 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:19,124 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-13 23:19:19,250 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:19,401 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:19,517 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:19,736 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:19,866 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:19,969 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:20,161 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:20,281 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:20,497 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:20,611 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:20,830 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:21,148 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:21,278 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:21,496 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:21,811 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:22,022 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:22,140 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:22,345 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:22,463 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:22,632 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:22,749 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:22,917 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:23,120 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:23,231 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:23,357 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:23,467 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:23,577 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:23,706 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:23,846 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:23,957 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:24,088 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:24,307 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:19:24,418 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:24,565 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:24,676 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:24,786 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:24,907 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,020 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:25,131 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:25,260 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,372 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,487 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,611 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:25,748 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,859 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:25,982 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:26,203 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-13 23:19:26,319 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:26,503 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:26,614 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:26,727 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:26,849 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:27,102 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:27,212 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:27,340 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:27,552 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:27,662 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:27,783 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:27,893 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:28,015 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:28,133 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:28,360 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:19:28,472 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:28,597 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:28,805 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:19:28,916 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:29,046 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:29,261 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:19:29,374 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:29,494 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:29,695 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:19:29,805 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:29,987 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:30,187 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-13 23:19:30,301 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:30,441 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:19:30,654 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:30,763 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:30,885 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:31,083 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:31,191 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:31,313 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:31,424 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:31,533 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:31,652 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:31,863 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:31,973 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:32,100 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:32,315 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:32,434 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:32,558 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:32,667 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:32,775 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:32,893 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:33,018 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:33,130 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:33,253 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:33,456 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:19:33,566 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:33,689 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:33,889 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:19:33,999 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:34,119 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:34,378 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-13 23:19:34,497 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:34,625 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:34,833 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:34,941 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:35,062 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:35,259 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:35,368 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:35,492 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:35,601 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:35,711 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:35,829 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:36,047 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-13 23:19:36,157 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-13 23:19:36,280 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:36,437 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:36,548 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:36,677 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:36,886 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:36,996 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:37,118 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:37,316 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-13 23:19:37,426 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-13 23:19:37,546 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560