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_spec1_product57.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:14:37,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:14:37,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:14:37,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:14:37,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:14:37,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:14:37,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:14:37,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:14:37,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:14:37,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:14:37,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:14:37,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:14:37,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:14:37,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:14:37,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:14:37,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:14:37,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:14:37,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:14:37,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:14:37,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:14:37,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:14:37,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:14:37,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:14:37,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:14:37,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:14:37,918 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:14:37,918 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:14:37,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:14:37,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:14:37,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:14:37,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:14:37,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:14:37,922 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:14:37,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:14:37,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:14:37,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:14:37,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:14:37,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:14:37,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:14:37,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:14:37,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:14:37,927 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 23:14:37,956 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:14:37,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:14:37,958 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:14:37,958 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:14:37,959 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:14:37,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:14:37,960 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:14:37,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:14:37,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:14:37,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:14:37,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:14:37,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:14:37,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:14:37,961 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:14:37,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:14:37,962 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:14:37,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:14:37,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:14:37,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:14:37,963 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:14:37,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:14:37,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:14:37,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:14:37,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:14:37,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:14:37,964 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:14:37,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:14:37,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:14:37,965 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 23:14:38,228 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:14:38,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:14:38,243 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:14:38,245 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:14:38,245 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:14:38,246 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2019-10-13 23:14:38,308 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06337e20/c1e7b196928d48f49266b4df3eb0a243/FLAGec40ae20a [2019-10-13 23:14:38,829 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:14:38,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product57.cil.c [2019-10-13 23:14:38,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06337e20/c1e7b196928d48f49266b4df3eb0a243/FLAGec40ae20a [2019-10-13 23:14:39,153 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b06337e20/c1e7b196928d48f49266b4df3eb0a243 [2019-10-13 23:14:39,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:14:39,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:14:39,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:14:39,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:14:39,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:14:39,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,174 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10a48b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39, skipping insertion in model container [2019-10-13 23:14:39,174 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,183 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:14:39,243 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:14:39,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:14:39,736 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:14:39,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:14:39,862 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:14:39,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39 WrapperNode [2019-10-13 23:14:39,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:14:39,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:14:39,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:14:39,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:14:39,878 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39" (1/1) ... [2019-10-13 23:14:39,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:14:39,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:14:39,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:14:39,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:14:39,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39" (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 23:14:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:14:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:14:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:14:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:14:40,008 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:14:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:14:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:14:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:14:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:14:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:14:40,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:14:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:14:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:14:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:14:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:14:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:14:40,010 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:14:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:14:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:14:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:14:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:14:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:14:40,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:14:40,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:14:40,012 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:14:40,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:14:40,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:14:40,012 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:14:40,012 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:14:40,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:14:40,013 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:14:40,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:14:40,013 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:14:40,013 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:14:40,013 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:14:40,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:14:40,014 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:14:40,014 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:14:40,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:14:40,014 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:14:40,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:14:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:14:40,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:14:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:14:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:14:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:14:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:14:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-13 23:14:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:14:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:14:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:14:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:14:40,015 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:14:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:14:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:14:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:14:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:14:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:14:40,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:14:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:14:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:14:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:14:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:14:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:14:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:14:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:14:40,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:14:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:14:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:14:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:14:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:14:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:14:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:14:40,018 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:14:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:14:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:14:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:14:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:14:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:14:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:14:40,019 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:14:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:14:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:14:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:14:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:14:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:14:40,020 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:14:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:14:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:14:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:14:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:14:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:14:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:14:40,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:14:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:14:40,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:14:41,621 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:14:41,622 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:14:41,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:14:41 BoogieIcfgContainer [2019-10-13 23:14:41,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:14:41,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:14:41,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:14:41,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:14:41,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:14:39" (1/3) ... [2019-10-13 23:14:41,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee10b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:14:41, skipping insertion in model container [2019-10-13 23:14:41,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:14:39" (2/3) ... [2019-10-13 23:14:41,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee10b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:14:41, skipping insertion in model container [2019-10-13 23:14:41,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:14:41" (3/3) ... [2019-10-13 23:14:41,637 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product57.cil.c [2019-10-13 23:14:41,648 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:14:41,659 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:14:41,673 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:14:41,713 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:14:41,713 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:14:41,713 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:14:41,713 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:14:41,714 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:14:41,714 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:14:41,714 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:14:41,714 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:14:41,748 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states. [2019-10-13 23:14:41,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-13 23:14:41,763 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:41,765 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] [2019-10-13 23:14:41,768 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:41,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:41,775 INFO L82 PathProgramCache]: Analyzing trace with hash 499766542, now seen corresponding path program 1 times [2019-10-13 23:14:41,785 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:41,785 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058721839] [2019-10-13 23:14:41,786 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:41,786 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:41,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:42,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:42,185 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058721839] [2019-10-13 23:14:42,186 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:42,187 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:14:42,187 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469610062] [2019-10-13 23:14:42,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:14:42,193 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:42,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:14:42,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:14:42,208 INFO L87 Difference]: Start difference. First operand 150 states. Second operand 2 states. [2019-10-13 23:14:42,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:42,246 INFO L93 Difference]: Finished difference Result 233 states and 278 transitions. [2019-10-13 23:14:42,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:14:42,249 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-13 23:14:42,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:42,267 INFO L225 Difference]: With dead ends: 233 [2019-10-13 23:14:42,267 INFO L226 Difference]: Without dead ends: 117 [2019-10-13 23:14:42,277 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 23:14:42,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2019-10-13 23:14:42,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2019-10-13 23:14:42,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2019-10-13 23:14:42,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 133 transitions. [2019-10-13 23:14:42,338 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 133 transitions. Word has length 42 [2019-10-13 23:14:42,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:42,339 INFO L462 AbstractCegarLoop]: Abstraction has 117 states and 133 transitions. [2019-10-13 23:14:42,339 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:14:42,339 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 133 transitions. [2019-10-13 23:14:42,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-13 23:14:42,346 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:42,347 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] [2019-10-13 23:14:42,347 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:42,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:42,348 INFO L82 PathProgramCache]: Analyzing trace with hash -2009821160, now seen corresponding path program 1 times [2019-10-13 23:14:42,349 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:42,349 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053999352] [2019-10-13 23:14:42,349 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:42,351 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:42,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:42,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:42,510 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053999352] [2019-10-13 23:14:42,510 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:42,510 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:14:42,510 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474161947] [2019-10-13 23:14:42,512 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:14:42,512 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:42,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:14:42,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:14:42,513 INFO L87 Difference]: Start difference. First operand 117 states and 133 transitions. Second operand 3 states. [2019-10-13 23:14:42,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:42,541 INFO L93 Difference]: Finished difference Result 191 states and 217 transitions. [2019-10-13 23:14:42,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:14:42,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-13 23:14:42,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:42,546 INFO L225 Difference]: With dead ends: 191 [2019-10-13 23:14:42,547 INFO L226 Difference]: Without dead ends: 109 [2019-10-13 23:14:42,549 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 23:14:42,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-13 23:14:42,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-10-13 23:14:42,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-10-13 23:14:42,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 122 transitions. [2019-10-13 23:14:42,570 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 122 transitions. Word has length 43 [2019-10-13 23:14:42,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:42,570 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 122 transitions. [2019-10-13 23:14:42,570 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:14:42,571 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 122 transitions. [2019-10-13 23:14:42,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-13 23:14:42,573 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:42,573 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] [2019-10-13 23:14:42,573 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:42,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:42,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1905984228, now seen corresponding path program 1 times [2019-10-13 23:14:42,574 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:42,575 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719297703] [2019-10-13 23:14:42,575 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:42,575 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:42,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:42,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:42,747 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719297703] [2019-10-13 23:14:42,748 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:42,748 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:14:42,748 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729843635] [2019-10-13 23:14:42,750 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:14:42,751 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:42,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:14:42,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:14:42,751 INFO L87 Difference]: Start difference. First operand 109 states and 122 transitions. Second operand 7 states. [2019-10-13 23:14:43,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:43,105 INFO L93 Difference]: Finished difference Result 196 states and 223 transitions. [2019-10-13 23:14:43,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:14:43,107 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2019-10-13 23:14:43,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:43,110 INFO L225 Difference]: With dead ends: 196 [2019-10-13 23:14:43,110 INFO L226 Difference]: Without dead ends: 109 [2019-10-13 23:14:43,111 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 23:14:43,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-13 23:14:43,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-10-13 23:14:43,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-10-13 23:14:43,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 121 transitions. [2019-10-13 23:14:43,141 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 121 transitions. Word has length 45 [2019-10-13 23:14:43,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:43,142 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 121 transitions. [2019-10-13 23:14:43,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:14:43,142 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 121 transitions. [2019-10-13 23:14:43,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-13 23:14:43,148 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:43,148 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] [2019-10-13 23:14:43,148 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:43,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:43,149 INFO L82 PathProgramCache]: Analyzing trace with hash -1680231948, now seen corresponding path program 1 times [2019-10-13 23:14:43,149 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:43,149 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053872670] [2019-10-13 23:14:43,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,150 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:43,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:43,328 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053872670] [2019-10-13 23:14:43,328 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:43,328 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:14:43,329 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878580900] [2019-10-13 23:14:43,329 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:14:43,329 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:43,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:14:43,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:14:43,330 INFO L87 Difference]: Start difference. First operand 109 states and 121 transitions. Second operand 5 states. [2019-10-13 23:14:43,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:43,811 INFO L93 Difference]: Finished difference Result 280 states and 325 transitions. [2019-10-13 23:14:43,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:14:43,815 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-10-13 23:14:43,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:43,820 INFO L225 Difference]: With dead ends: 280 [2019-10-13 23:14:43,820 INFO L226 Difference]: Without dead ends: 193 [2019-10-13 23:14:43,821 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 23:14:43,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2019-10-13 23:14:43,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 178. [2019-10-13 23:14:43,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-10-13 23:14:43,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 195 transitions. [2019-10-13 23:14:43,854 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 195 transitions. Word has length 58 [2019-10-13 23:14:43,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:43,854 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 195 transitions. [2019-10-13 23:14:43,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:14:43,855 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 195 transitions. [2019-10-13 23:14:43,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-10-13 23:14:43,858 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:43,859 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] [2019-10-13 23:14:43,859 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:43,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:43,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1031765746, now seen corresponding path program 1 times [2019-10-13 23:14:43,862 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:43,862 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371267213] [2019-10-13 23:14:43,864 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,864 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:43,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:43,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:44,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:44,011 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371267213] [2019-10-13 23:14:44,011 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:44,011 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:14:44,011 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211371072] [2019-10-13 23:14:44,013 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:14:44,013 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:44,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:14:44,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:14:44,015 INFO L87 Difference]: Start difference. First operand 178 states and 195 transitions. Second operand 6 states. [2019-10-13 23:14:44,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:44,270 INFO L93 Difference]: Finished difference Result 476 states and 538 transitions. [2019-10-13 23:14:44,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:14:44,272 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2019-10-13 23:14:44,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:44,285 INFO L225 Difference]: With dead ends: 476 [2019-10-13 23:14:44,286 INFO L226 Difference]: Without dead ends: 320 [2019-10-13 23:14:44,290 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:14:44,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-10-13 23:14:44,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 310. [2019-10-13 23:14:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2019-10-13 23:14:44,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 339 transitions. [2019-10-13 23:14:44,333 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 339 transitions. Word has length 67 [2019-10-13 23:14:44,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:44,334 INFO L462 AbstractCegarLoop]: Abstraction has 310 states and 339 transitions. [2019-10-13 23:14:44,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:14:44,334 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 339 transitions. [2019-10-13 23:14:44,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-13 23:14:44,336 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:44,336 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] [2019-10-13 23:14:44,337 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:44,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:44,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1152524610, now seen corresponding path program 1 times [2019-10-13 23:14:44,337 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:44,338 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439504661] [2019-10-13 23:14:44,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:44,338 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:44,338 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:44,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:44,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:44,432 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439504661] [2019-10-13 23:14:44,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:14:44,432 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:14:44,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023247323] [2019-10-13 23:14:44,433 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:14:44,433 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:44,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:14:44,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:14:44,434 INFO L87 Difference]: Start difference. First operand 310 states and 339 transitions. Second operand 7 states. [2019-10-13 23:14:45,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:45,015 INFO L93 Difference]: Finished difference Result 336 states and 376 transitions. [2019-10-13 23:14:45,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:14:45,016 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-10-13 23:14:45,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:45,021 INFO L225 Difference]: With dead ends: 336 [2019-10-13 23:14:45,021 INFO L226 Difference]: Without dead ends: 333 [2019-10-13 23:14:45,022 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:14:45,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-10-13 23:14:45,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 310. [2019-10-13 23:14:45,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2019-10-13 23:14:45,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 338 transitions. [2019-10-13 23:14:45,063 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 338 transitions. Word has length 70 [2019-10-13 23:14:45,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:45,063 INFO L462 AbstractCegarLoop]: Abstraction has 310 states and 338 transitions. [2019-10-13 23:14:45,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:14:45,064 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 338 transitions. [2019-10-13 23:14:45,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 23:14:45,066 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:45,067 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] [2019-10-13 23:14:45,067 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:45,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:45,067 INFO L82 PathProgramCache]: Analyzing trace with hash 1201888274, now seen corresponding path program 1 times [2019-10-13 23:14:45,068 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:45,068 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611371542] [2019-10-13 23:14:45,068 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:45,068 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:45,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:45,247 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:14:45,247 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611371542] [2019-10-13 23:14:45,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368929914] [2019-10-13 23:14:45,248 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 23:14:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:45,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 25 conjunts are in the unsatisfiable core [2019-10-13 23:14:45,461 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:14:45,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:14:45,560 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:14:46,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:14:46,151 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:14:46,151 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 11] total 23 [2019-10-13 23:14:46,151 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666477192] [2019-10-13 23:14:46,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-10-13 23:14:46,152 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:46,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-10-13 23:14:46,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=431, Unknown=0, NotChecked=0, Total=506 [2019-10-13 23:14:46,153 INFO L87 Difference]: Start difference. First operand 310 states and 338 transitions. Second operand 11 states. [2019-10-13 23:14:46,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:46,753 INFO L93 Difference]: Finished difference Result 709 states and 805 transitions. [2019-10-13 23:14:46,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-13 23:14:46,756 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 83 [2019-10-13 23:14:46,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:46,760 INFO L225 Difference]: With dead ends: 709 [2019-10-13 23:14:46,760 INFO L226 Difference]: Without dead ends: 421 [2019-10-13 23:14:46,762 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=129, Invalid=683, Unknown=0, NotChecked=0, Total=812 [2019-10-13 23:14:46,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-10-13 23:14:46,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 413. [2019-10-13 23:14:46,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2019-10-13 23:14:46,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 453 transitions. [2019-10-13 23:14:46,809 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 453 transitions. Word has length 83 [2019-10-13 23:14:46,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:46,812 INFO L462 AbstractCegarLoop]: Abstraction has 413 states and 453 transitions. [2019-10-13 23:14:46,818 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-10-13 23:14:46,819 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 453 transitions. [2019-10-13 23:14:46,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-10-13 23:14:46,825 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:46,825 INFO L380 BasicCegarLoop]: trace histogram [3, 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] [2019-10-13 23:14:47,026 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:14:47,027 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:47,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:47,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1415977376, now seen corresponding path program 1 times [2019-10-13 23:14:47,028 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:47,028 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113140689] [2019-10-13 23:14:47,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:47,029 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:47,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:47,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 23:14:47,304 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113140689] [2019-10-13 23:14:47,305 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612806700] [2019-10-13 23:14:47,305 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:14:47,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:47,500 INFO L256 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 27 conjunts are in the unsatisfiable core [2019-10-13 23:14:47,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:14:47,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:47,794 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:47,868 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:14:47,868 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:14:48,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:48,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:48,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,250 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:49,544 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-10-13 23:14:49,544 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-13 23:14:49,545 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [14, 12] total 34 [2019-10-13 23:14:49,546 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86113461] [2019-10-13 23:14:49,547 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:14:49,547 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:14:49,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:14:49,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=964, Unknown=0, NotChecked=0, Total=1122 [2019-10-13 23:14:49,549 INFO L87 Difference]: Start difference. First operand 413 states and 453 transitions. Second operand 12 states. [2019-10-13 23:14:51,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:14:51,398 INFO L93 Difference]: Finished difference Result 1051 states and 1219 transitions. [2019-10-13 23:14:51,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-10-13 23:14:51,399 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 128 [2019-10-13 23:14:51,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:14:51,406 INFO L225 Difference]: With dead ends: 1051 [2019-10-13 23:14:51,407 INFO L226 Difference]: Without dead ends: 660 [2019-10-13 23:14:51,410 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 232 SyntacticMatches, 9 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 538 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=396, Invalid=2054, Unknown=0, NotChecked=0, Total=2450 [2019-10-13 23:14:51,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2019-10-13 23:14:51,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 631. [2019-10-13 23:14:51,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-10-13 23:14:51,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 713 transitions. [2019-10-13 23:14:51,502 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 713 transitions. Word has length 128 [2019-10-13 23:14:51,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:14:51,503 INFO L462 AbstractCegarLoop]: Abstraction has 631 states and 713 transitions. [2019-10-13 23:14:51,503 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:14:51,503 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 713 transitions. [2019-10-13 23:14:51,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2019-10-13 23:14:51,506 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:14:51,507 INFO L380 BasicCegarLoop]: trace histogram [3, 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, 1] [2019-10-13 23:14:51,712 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:14:51,712 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:14:51,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:14:51,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1008843704, now seen corresponding path program 1 times [2019-10-13 23:14:51,713 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:14:51,714 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563720422] [2019-10-13 23:14:51,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:51,714 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:14:51,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:14:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:52,038 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-10-13 23:14:52,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563720422] [2019-10-13 23:14:52,039 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911259095] [2019-10-13 23:14:52,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:14:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:14:52,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 50 conjunts are in the unsatisfiable core [2019-10-13 23:14:52,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:14:52,458 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:52,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:52,667 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:14:52,667 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:14:53,036 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,076 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,348 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,348 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,488 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,488 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:14:53,687 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-13 23:14:53,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [753800295] [2019-10-13 23:14:53,712 INFO L162 IcfgInterpreter]: Started Sifa with 105 locations of interest [2019-10-13 23:14:53,712 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:14:53,717 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:14:53,725 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:14:53,726 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:15:02,443 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-13 23:15:04,050 WARN L191 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:15:04,182 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:15:04,337 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:15:04,499 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-13 23:15:04,794 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:05,020 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:05,218 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:05,473 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:05,869 WARN L191 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-13 23:15:06,033 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,232 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,377 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,492 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,610 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-13 23:15:06,617 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-13 23:15:06,857 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-13 23:15:06,858 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-13 23:15:06,970 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:07,074 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:07,194 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:07,317 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:07,460 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:07,575 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:07,704 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:07,917 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:08,171 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 544 [2019-10-13 23:15:08,392 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:08,730 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:08,940 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:09,127 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:09,247 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:09,474 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:09,589 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:09,802 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:10,112 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:10,228 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:10,437 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:10,748 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:10,953 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:11,093 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:11,404 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:11,530 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:11,634 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:11,749 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:11,996 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-13 23:15:12,101 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:12,239 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:12,343 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:12,447 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:12,558 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:12,677 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:15:12,796 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:15:12,927 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:13,184 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-13 23:15:13,292 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:13,417 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:13,611 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-13 23:15:13,716 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:15:13,856 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:13,968 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-13 23:15:14,077 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-13 23:15:14,220 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 561 [2019-10-13 23:15:14,330 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:14,439 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:14,566 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:14,701 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:14,838 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:14,961 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:15,078 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:15,187 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:15,372 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:15,481 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:15,590 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:15,707 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 563 [2019-10-13 23:15:15,920 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-13 23:15:16,024 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:16,143 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:16,343 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 552 [2019-10-13 23:15:16,447 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:16,561 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:16,665 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:16,770 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:16,889 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 552 [2019-10-13 23:15:17,019 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:17,126 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:17,244 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:17,576 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-13 23:15:17,682 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:15:17,808 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-13 23:15:17,990 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 554 [2019-10-13 23:15:18,097 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 554 [2019-10-13 23:15:18,215 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 556