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_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:23:36,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:23:36,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:23:36,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:23:36,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:23:36,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:23:36,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:23:36,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:23:36,857 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:23:36,858 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:23:36,860 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:23:36,861 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:23:36,861 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:23:36,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:23:36,868 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:23:36,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:23:36,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:23:36,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:23:36,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:23:36,882 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:23:36,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:23:36,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:23:36,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:23:36,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:23:36,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:23:36,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:23:36,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:23:36,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:23:36,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:23:36,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:23:36,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:23:36,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:23:36,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:23:36,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:23:36,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:23:36,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:23:36,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:23:36,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:23:36,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:23:36,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:23:36,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:23:36,910 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 [2019-10-15 03:23:36,930 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:23:36,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:23:36,933 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:23:36,933 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:23:36,933 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:23:36,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:23:36,934 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:23:36,934 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:23:36,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:23:36,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:23:36,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:23:36,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:23:36,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:23:36,936 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:23:36,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:23:36,937 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:23:36,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:23:36,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:23:36,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:23:36,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:23:36,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:23:36,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:23:36,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:23:36,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:23:36,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:23:36,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:23:36,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:23:36,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:23:36,940 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 [2019-10-15 03:23:37,245 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:23:37,262 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:23:37,265 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:23:37,267 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:23:37,267 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:23:37,268 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2019-10-15 03:23:37,339 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c8e20da/e3fba96cd793490a84117e96ad29c87d/FLAGbcea1eacb [2019-10-15 03:23:37,877 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:23:37,878 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product58.cil.c [2019-10-15 03:23:37,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c8e20da/e3fba96cd793490a84117e96ad29c87d/FLAGbcea1eacb [2019-10-15 03:23:38,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58c8e20da/e3fba96cd793490a84117e96ad29c87d [2019-10-15 03:23:38,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:23:38,216 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:23:38,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:23:38,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:23:38,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:23:38,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:38" (1/1) ... [2019-10-15 03:23:38,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@170a06bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38, skipping insertion in model container [2019-10-15 03:23:38,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:38" (1/1) ... [2019-10-15 03:23:38,229 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:23:38,292 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:23:38,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:23:38,771 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:23:38,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:23:38,944 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:23:38,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38 WrapperNode [2019-10-15 03:23:38,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:23:38,946 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:23:38,946 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:23:38,946 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:23:38,960 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38" (1/1) ... [2019-10-15 03:23:38,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38" (1/1) ... [2019-10-15 03:23:38,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38" (1/1) ... [2019-10-15 03:23:38,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38" (1/1) ... [2019-10-15 03:23:39,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38" (1/1) ... [2019-10-15 03:23:39,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38" (1/1) ... [2019-10-15 03:23:39,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38" (1/1) ... [2019-10-15 03:23:39,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:23:39,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:23:39,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:23:39,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:23:39,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38" (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 [2019-10-15 03:23:39,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:23:39,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:23:39,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:23:39,110 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:23:39,110 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:23:39,110 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:23:39,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:23:39,110 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:23:39,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:23:39,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:23:39,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:23:39,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:23:39,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:23:39,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:23:39,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:23:39,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:23:39,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:23:39,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:23:39,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:23:39,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:23:39,113 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:23:39,114 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:23:39,114 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:23:39,114 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:23:39,114 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:23:39,114 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:23:39,114 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:23:39,115 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:23:39,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:23:39,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:23:39,115 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:23:39,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:23:39,115 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:23:39,116 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:23:39,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:23:39,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:23:39,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:23:39,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:23:39,116 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:23:39,117 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:23:39,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:23:39,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:23:39,117 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:23:39,117 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:23:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:23:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:23:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:23:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:23:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:23:39,118 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:23:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:23:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:23:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:23:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:23:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:23:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:23:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:23:39,120 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:23:39,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:23:39,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:23:39,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:23:39,120 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:23:39,120 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:23:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:23:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:23:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:23:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:23:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:23:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:23:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:23:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:23:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:23:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:23:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:23:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:23:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:23:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:23:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:23:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:23:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:23:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:23:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:23:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:23:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:23:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:23:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:23:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:23:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:23:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:23:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:23:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:23:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:23:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:23:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:23:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:23:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:23:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-15 03:23:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:23:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:23:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:23:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:23:39,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:23:40,779 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:23:40,779 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:23:40,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:40 BoogieIcfgContainer [2019-10-15 03:23:40,781 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:23:40,782 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:23:40,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:23:40,786 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:23:40,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:23:38" (1/3) ... [2019-10-15 03:23:40,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6baccb39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:40, skipping insertion in model container [2019-10-15 03:23:40,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:38" (2/3) ... [2019-10-15 03:23:40,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6baccb39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:40, skipping insertion in model container [2019-10-15 03:23:40,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:40" (3/3) ... [2019-10-15 03:23:40,790 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product58.cil.c [2019-10-15 03:23:40,800 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:23:40,809 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:23:40,820 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:23:40,855 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:23:40,856 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:23:40,856 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:23:40,856 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:23:40,856 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:23:40,857 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:23:40,858 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:23:40,859 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:23:40,888 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2019-10-15 03:23:40,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:23:40,904 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:40,905 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] [2019-10-15 03:23:40,909 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:40,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:40,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1293516070, now seen corresponding path program 1 times [2019-10-15 03:23:40,926 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:40,929 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744847788] [2019-10-15 03:23:40,929 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:40,930 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:40,930 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:41,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:41,302 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744847788] [2019-10-15 03:23:41,303 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:41,303 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:23:41,303 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588936027] [2019-10-15 03:23:41,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:23:41,309 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:41,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:23:41,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:23:41,326 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 2 states. [2019-10-15 03:23:41,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:41,366 INFO L93 Difference]: Finished difference Result 258 states and 307 transitions. [2019-10-15 03:23:41,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:23:41,368 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-15 03:23:41,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:41,381 INFO L225 Difference]: With dead ends: 258 [2019-10-15 03:23:41,382 INFO L226 Difference]: Without dead ends: 131 [2019-10-15 03:23:41,387 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 [2019-10-15 03:23:41,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-15 03:23:41,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-15 03:23:41,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-15 03:23:41,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 149 transitions. [2019-10-15 03:23:41,442 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 149 transitions. Word has length 52 [2019-10-15 03:23:41,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:41,443 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 149 transitions. [2019-10-15 03:23:41,443 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:23:41,443 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 149 transitions. [2019-10-15 03:23:41,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:23:41,447 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:41,447 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] [2019-10-15 03:23:41,448 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:41,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1293511669, now seen corresponding path program 1 times [2019-10-15 03:23:41,448 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:41,449 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439978656] [2019-10-15 03:23:41,449 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:41,449 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:41,449 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:41,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:41,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:41,577 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439978656] [2019-10-15 03:23:41,578 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:41,578 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:23:41,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630861093] [2019-10-15 03:23:41,581 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:23:41,583 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:41,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:23:41,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:23:41,584 INFO L87 Difference]: Start difference. First operand 131 states and 149 transitions. Second operand 3 states. [2019-10-15 03:23:41,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:41,629 INFO L93 Difference]: Finished difference Result 212 states and 241 transitions. [2019-10-15 03:23:41,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:23:41,630 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-15 03:23:41,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:41,636 INFO L225 Difference]: With dead ends: 212 [2019-10-15 03:23:41,636 INFO L226 Difference]: Without dead ends: 123 [2019-10-15 03:23:41,641 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 [2019-10-15 03:23:41,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-15 03:23:41,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-15 03:23:41,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-15 03:23:41,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 138 transitions. [2019-10-15 03:23:41,660 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 138 transitions. Word has length 53 [2019-10-15 03:23:41,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:41,661 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 138 transitions. [2019-10-15 03:23:41,661 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:23:41,661 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 138 transitions. [2019-10-15 03:23:41,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-15 03:23:41,669 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:41,669 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] [2019-10-15 03:23:41,671 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:41,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:41,672 INFO L82 PathProgramCache]: Analyzing trace with hash -613195749, now seen corresponding path program 1 times [2019-10-15 03:23:41,672 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:41,672 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515896152] [2019-10-15 03:23:41,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:41,673 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:41,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:41,870 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515896152] [2019-10-15 03:23:41,870 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:41,870 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:23:41,870 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743028226] [2019-10-15 03:23:41,872 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:23:41,872 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:41,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:23:41,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:23:41,873 INFO L87 Difference]: Start difference. First operand 123 states and 138 transitions. Second operand 7 states. [2019-10-15 03:23:42,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:42,170 INFO L93 Difference]: Finished difference Result 221 states and 252 transitions. [2019-10-15 03:23:42,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:23:42,170 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-15 03:23:42,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:42,172 INFO L225 Difference]: With dead ends: 221 [2019-10-15 03:23:42,172 INFO L226 Difference]: Without dead ends: 123 [2019-10-15 03:23:42,173 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:23:42,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-15 03:23:42,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-15 03:23:42,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-15 03:23:42,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 137 transitions. [2019-10-15 03:23:42,187 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 137 transitions. Word has length 56 [2019-10-15 03:23:42,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:42,189 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 137 transitions. [2019-10-15 03:23:42,189 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:23:42,189 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 137 transitions. [2019-10-15 03:23:42,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-15 03:23:42,192 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:42,192 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] [2019-10-15 03:23:42,193 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:42,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:42,193 INFO L82 PathProgramCache]: Analyzing trace with hash 368878537, now seen corresponding path program 1 times [2019-10-15 03:23:42,193 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:42,194 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413121227] [2019-10-15 03:23:42,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:42,194 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:42,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:42,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:42,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413121227] [2019-10-15 03:23:42,313 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:42,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:23:42,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365704792] [2019-10-15 03:23:42,314 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:23:42,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:42,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:23:42,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:23:42,315 INFO L87 Difference]: Start difference. First operand 123 states and 137 transitions. Second operand 5 states. [2019-10-15 03:23:42,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:42,860 INFO L93 Difference]: Finished difference Result 317 states and 372 transitions. [2019-10-15 03:23:42,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:23:42,863 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-10-15 03:23:42,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:42,866 INFO L225 Difference]: With dead ends: 317 [2019-10-15 03:23:42,866 INFO L226 Difference]: Without dead ends: 219 [2019-10-15 03:23:42,867 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 [2019-10-15 03:23:42,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2019-10-15 03:23:42,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 202. [2019-10-15 03:23:42,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2019-10-15 03:23:42,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 225 transitions. [2019-10-15 03:23:42,908 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 225 transitions. Word has length 69 [2019-10-15 03:23:42,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:42,908 INFO L462 AbstractCegarLoop]: Abstraction has 202 states and 225 transitions. [2019-10-15 03:23:42,909 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:23:42,909 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 225 transitions. [2019-10-15 03:23:42,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-15 03:23:42,917 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:42,918 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] [2019-10-15 03:23:42,918 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:42,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:42,918 INFO L82 PathProgramCache]: Analyzing trace with hash 578941751, now seen corresponding path program 1 times [2019-10-15 03:23:42,918 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:42,919 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855429333] [2019-10-15 03:23:42,919 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:42,919 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:42,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:42,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:43,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:23:43,069 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855429333] [2019-10-15 03:23:43,069 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:43,069 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:23:43,070 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222153610] [2019-10-15 03:23:43,071 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:23:43,072 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:43,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:23:43,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:23:43,073 INFO L87 Difference]: Start difference. First operand 202 states and 225 transitions. Second operand 7 states. [2019-10-15 03:23:43,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:43,649 INFO L93 Difference]: Finished difference Result 395 states and 455 transitions. [2019-10-15 03:23:43,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:23:43,650 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-15 03:23:43,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:43,652 INFO L225 Difference]: With dead ends: 395 [2019-10-15 03:23:43,653 INFO L226 Difference]: Without dead ends: 218 [2019-10-15 03:23:43,654 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 [2019-10-15 03:23:43,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-10-15 03:23:43,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 201. [2019-10-15 03:23:43,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2019-10-15 03:23:43,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 222 transitions. [2019-10-15 03:23:43,699 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 222 transitions. Word has length 78 [2019-10-15 03:23:43,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:43,699 INFO L462 AbstractCegarLoop]: Abstraction has 201 states and 222 transitions. [2019-10-15 03:23:43,699 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:23:43,699 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 222 transitions. [2019-10-15 03:23:43,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-10-15 03:23:43,701 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:43,701 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] [2019-10-15 03:23:43,702 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:43,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:43,702 INFO L82 PathProgramCache]: Analyzing trace with hash -151437386, now seen corresponding path program 1 times [2019-10-15 03:23:43,702 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:43,702 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397000536] [2019-10-15 03:23:43,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:43,703 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:43,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:43,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:43,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:43,934 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397000536] [2019-10-15 03:23:43,934 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:43,935 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:23:43,935 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929268524] [2019-10-15 03:23:43,935 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:23:43,936 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:43,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:23:43,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:23:43,936 INFO L87 Difference]: Start difference. First operand 201 states and 222 transitions. Second operand 12 states. [2019-10-15 03:23:44,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:44,967 INFO L93 Difference]: Finished difference Result 526 states and 603 transitions. [2019-10-15 03:23:44,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:23:44,967 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 91 [2019-10-15 03:23:44,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:44,971 INFO L225 Difference]: With dead ends: 526 [2019-10-15 03:23:44,972 INFO L226 Difference]: Without dead ends: 350 [2019-10-15 03:23:44,973 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 [2019-10-15 03:23:44,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2019-10-15 03:23:45,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 341. [2019-10-15 03:23:45,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2019-10-15 03:23:45,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 388 transitions. [2019-10-15 03:23:45,004 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 388 transitions. Word has length 91 [2019-10-15 03:23:45,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:45,004 INFO L462 AbstractCegarLoop]: Abstraction has 341 states and 388 transitions. [2019-10-15 03:23:45,005 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:23:45,005 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 388 transitions. [2019-10-15 03:23:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-15 03:23:45,007 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:45,007 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, 1] [2019-10-15 03:23:45,007 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:45,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:45,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1054025491, now seen corresponding path program 1 times [2019-10-15 03:23:45,008 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:45,008 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357537503] [2019-10-15 03:23:45,008 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:45,009 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:45,009 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:45,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:45,282 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357537503] [2019-10-15 03:23:45,283 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:45,283 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:23:45,283 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104175234] [2019-10-15 03:23:45,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:23:45,284 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:45,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:23:45,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:23:45,284 INFO L87 Difference]: Start difference. First operand 341 states and 388 transitions. Second operand 9 states. [2019-10-15 03:23:46,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:46,287 INFO L93 Difference]: Finished difference Result 1059 states and 1240 transitions. [2019-10-15 03:23:46,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:23:46,288 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 94 [2019-10-15 03:23:46,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:46,294 INFO L225 Difference]: With dead ends: 1059 [2019-10-15 03:23:46,294 INFO L226 Difference]: Without dead ends: 804 [2019-10-15 03:23:46,296 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-15 03:23:46,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2019-10-15 03:23:46,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 699. [2019-10-15 03:23:46,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2019-10-15 03:23:46,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 802 transitions. [2019-10-15 03:23:46,350 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 802 transitions. Word has length 94 [2019-10-15 03:23:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:46,350 INFO L462 AbstractCegarLoop]: Abstraction has 699 states and 802 transitions. [2019-10-15 03:23:46,350 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:23:46,351 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 802 transitions. [2019-10-15 03:23:46,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-15 03:23:46,353 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:46,354 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, 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] [2019-10-15 03:23:46,354 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:46,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:46,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1307566572, now seen corresponding path program 1 times [2019-10-15 03:23:46,355 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:46,355 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092687352] [2019-10-15 03:23:46,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:46,355 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:46,355 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:46,522 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-15 03:23:46,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092687352] [2019-10-15 03:23:46,523 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039646] [2019-10-15 03:23:46,523 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 [2019-10-15 03:23:46,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:46,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 942 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:23:46,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:23:46,906 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:23:46,906 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:23:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 19 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-10-15 03:23:47,384 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1183026334] [2019-10-15 03:23:47,415 INFO L162 IcfgInterpreter]: Started Sifa with 113 locations of interest [2019-10-15 03:23:47,415 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:23:47,422 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:23:47,431 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:23:47,432 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:23:57,549 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:23:59,123 WARN L191 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:23:59,258 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:59,388 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:59,635 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:59,951 WARN L191 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:00,198 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:00,448 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:00,692 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:01,134 WARN L191 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:24:01,380 WARN L191 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:01,553 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:01,675 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:01,788 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:01,957 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:24:01,967 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:24:02,177 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:24:02,280 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:02,388 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:02,566 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:02,682 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:02,798 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:02,940 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:03,063 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:03,190 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:03,315 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:03,580 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-15 03:24:03,899 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:04,033 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:04,279 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:04,381 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:04,484 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:04,633 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:04,758 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:04,868 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:04,989 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,320 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,449 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:05,672 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,882 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:06,004 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,229 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:06,360 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,462 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:06,682 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,893 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:07,051 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:07,185 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:07,299 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:07,423 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:07,644 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:24:07,779 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:07,908 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:08,033 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:08,148 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:08,272 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:08,412 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:08,529 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:08,664 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:08,931 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:24:09,064 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:09,194 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:09,309 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:09,422 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:09,547 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:09,668 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:24:09,784 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:24:09,919 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-15 03:24:10,045 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:10,166 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:10,315 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:10,472 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:10,588 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:10,732 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:10,864 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:10,981 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:11,312 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:11,467 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:11,588 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:11,721 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-15 03:24:11,947 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:24:12,061 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,186 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,445 WARN L191 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:24:12,560 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,693 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,805 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,917 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:13,038 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:13,173 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:13,287 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:13,416 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:13,577 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:13,698 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:13,833 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:13,948 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:14,085 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:14,211 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:14,422 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 566 [2019-10-15 03:24:14,546 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:14,674 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:14,883 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 568 [2019-10-15 03:24:14,997 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:15,132 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:24:15,356 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:24:15,468 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:15,592 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:15,808 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:24:15,935 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:16,064 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:16,177 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:16,290 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:16,438 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:16,653 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:24:16,766 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:16,891 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:17,098 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:24:17,211 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:17,338 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:17,451 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:17,564 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:17,686 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:17,823 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:17,938 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:18,071 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:18,292 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:24:18,405 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566