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_product54.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:23:31,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:23:31,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:23:31,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:23:31,096 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:23:31,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:23:31,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:23:31,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:23:31,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:23:31,103 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:23:31,104 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:23:31,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:23:31,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:23:31,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:23:31,111 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:23:31,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:23:31,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:23:31,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:23:31,115 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:23:31,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:23:31,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:23:31,119 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:23:31,120 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:23:31,121 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:23:31,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:23:31,123 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:23:31,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:23:31,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:23:31,125 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:23:31,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:23:31,126 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:23:31,127 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:23:31,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:23:31,128 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:23:31,129 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:23:31,129 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:23:31,130 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:23:31,130 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:23:31,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:23:31,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:23:31,132 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:23:31,133 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 03:23:31,146 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:23:31,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:23:31,148 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:23:31,148 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:23:31,148 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:23:31,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:23:31,149 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:23:31,149 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:23:31,149 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:23:31,149 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:23:31,149 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:23:31,150 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:23:31,150 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:23:31,150 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:23:31,150 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:23:31,150 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:23:31,151 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:23:31,151 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:23:31,151 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:23:31,151 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:23:31,151 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:23:31,152 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:23:31,152 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:23:31,152 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:23:31,152 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:23:31,153 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:23:31,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:23:31,153 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:23:31,153 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 03:23:31,437 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:23:31,449 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:23:31,452 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:23:31,454 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:23:31,454 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:23:31,455 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2019-10-15 03:23:31,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7f6da67/a68c5b2947b6482cba1389b4a681ed92/FLAG7fa0b781c [2019-10-15 03:23:32,050 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:23:32,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product54.cil.c [2019-10-15 03:23:32,067 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7f6da67/a68c5b2947b6482cba1389b4a681ed92/FLAG7fa0b781c [2019-10-15 03:23:32,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e7f6da67/a68c5b2947b6482cba1389b4a681ed92 [2019-10-15 03:23:32,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:23:32,362 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:23:32,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:23:32,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:23:32,367 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:23:32,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:32" (1/1) ... [2019-10-15 03:23:32,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@152e91c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32, skipping insertion in model container [2019-10-15 03:23:32,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:32" (1/1) ... [2019-10-15 03:23:32,381 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:23:32,452 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:23:32,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:23:32,924 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:23:33,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:23:33,062 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:23:33,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:33 WrapperNode [2019-10-15 03:23:33,063 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:23:33,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:23:33,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:23:33,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:23:33,078 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:33" (1/1) ... [2019-10-15 03:23:33,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:33" (1/1) ... [2019-10-15 03:23:33,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:33" (1/1) ... [2019-10-15 03:23:33,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:33" (1/1) ... [2019-10-15 03:23:33,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:33" (1/1) ... [2019-10-15 03:23:33,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:33" (1/1) ... [2019-10-15 03:23:33,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:33" (1/1) ... [2019-10-15 03:23:33,176 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:23:33,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:23:33,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:23:33,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:23:33,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:33" (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 03:23:33,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:23:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:23:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:23:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:23:33,266 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:23:33,267 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:23:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:23:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:23:33,268 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:23:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:23:33,269 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:23:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:23:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:23:33,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:23:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:23:33,271 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:23:33,273 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:23:33,274 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:23:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:23:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:23:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:23:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:23:33,275 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:23:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-15 03:23:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:23:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:23:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:23:33,276 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:23:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:23:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:23:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:23:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:23:33,277 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:23:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:23:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:23:33,278 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:23:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:23:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:23:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:23:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:23:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:23:33,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:23:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:23:33,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:23:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:23:33,280 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:23:33,281 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:23:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:23:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:23:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:23:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:23:33,283 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:23:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:23:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:23:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:23:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:23:33,284 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:23:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:23:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:23:33,285 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:23:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:23:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:23:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:23:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:23:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:23:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:23:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:23:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:23:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:23:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:23:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:23:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:23:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:23:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:23:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:23:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:23:33,289 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:23:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:23:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:23:33,290 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:23:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-15 03:23:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:23:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:23:33,291 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:23:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:23:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:23:33,292 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:23:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:23:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:23:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:23:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:23:33,293 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:23:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:23:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:23:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:23:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:23:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:23:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:23:33,294 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:23:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:23:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:23:33,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:23:34,951 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:23:34,951 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:23:34,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:34 BoogieIcfgContainer [2019-10-15 03:23:34,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:23:34,954 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:23:34,954 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:23:34,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:23:34,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:23:32" (1/3) ... [2019-10-15 03:23:34,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa3e197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:34, skipping insertion in model container [2019-10-15 03:23:34,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:33" (2/3) ... [2019-10-15 03:23:34,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa3e197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:34, skipping insertion in model container [2019-10-15 03:23:34,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:34" (3/3) ... [2019-10-15 03:23:34,962 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2019-10-15 03:23:34,972 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:23:34,984 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:23:35,000 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:23:35,052 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:23:35,052 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:23:35,053 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:23:35,053 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:23:35,053 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:23:35,054 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:23:35,055 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:23:35,056 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:23:35,092 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2019-10-15 03:23:35,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:23:35,107 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:35,108 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 03:23:35,112 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:35,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:35,119 INFO L82 PathProgramCache]: Analyzing trace with hash 2004867032, now seen corresponding path program 1 times [2019-10-15 03:23:35,130 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:35,133 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069882293] [2019-10-15 03:23:35,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:35,134 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:35,134 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:35,534 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 03:23:35,535 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069882293] [2019-10-15 03:23:35,537 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:35,537 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:23:35,538 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362329802] [2019-10-15 03:23:35,552 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:23:35,553 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:35,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:23:35,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:23:35,572 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2019-10-15 03:23:35,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:35,615 INFO L93 Difference]: Finished difference Result 264 states and 319 transitions. [2019-10-15 03:23:35,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:23:35,617 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-15 03:23:35,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:35,631 INFO L225 Difference]: With dead ends: 264 [2019-10-15 03:23:35,632 INFO L226 Difference]: Without dead ends: 134 [2019-10-15 03:23:35,642 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 03:23:35,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2019-10-15 03:23:35,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2019-10-15 03:23:35,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-15 03:23:35,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 155 transitions. [2019-10-15 03:23:35,705 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 155 transitions. Word has length 52 [2019-10-15 03:23:35,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:35,706 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 155 transitions. [2019-10-15 03:23:35,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:23:35,706 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 155 transitions. [2019-10-15 03:23:35,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:23:35,714 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:35,714 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 03:23:35,715 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:35,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:35,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1132766157, now seen corresponding path program 1 times [2019-10-15 03:23:35,716 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:35,717 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706626502] [2019-10-15 03:23:35,717 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:35,718 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:35,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:35,895 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 03:23:35,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706626502] [2019-10-15 03:23:35,896 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:35,896 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:23:35,897 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860716224] [2019-10-15 03:23:35,901 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:23:35,901 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:35,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:23:35,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:23:35,903 INFO L87 Difference]: Start difference. First operand 134 states and 155 transitions. Second operand 3 states. [2019-10-15 03:23:35,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:35,933 INFO L93 Difference]: Finished difference Result 218 states and 253 transitions. [2019-10-15 03:23:35,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:23:35,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-15 03:23:35,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:35,937 INFO L225 Difference]: With dead ends: 218 [2019-10-15 03:23:35,938 INFO L226 Difference]: Without dead ends: 126 [2019-10-15 03:23:35,940 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 03:23:35,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-15 03:23:35,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-10-15 03:23:35,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-15 03:23:35,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 144 transitions. [2019-10-15 03:23:35,957 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 144 transitions. Word has length 53 [2019-10-15 03:23:35,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:35,958 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 144 transitions. [2019-10-15 03:23:35,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:23:35,958 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 144 transitions. [2019-10-15 03:23:35,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-15 03:23:35,961 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:35,961 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 03:23:35,962 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:35,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:35,962 INFO L82 PathProgramCache]: Analyzing trace with hash 2144150323, now seen corresponding path program 1 times [2019-10-15 03:23:35,963 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:35,963 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743695233] [2019-10-15 03:23:35,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:35,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:35,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:36,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:36,199 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 03:23:36,200 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743695233] [2019-10-15 03:23:36,200 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:36,200 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:23:36,201 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405793429] [2019-10-15 03:23:36,201 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:23:36,202 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:36,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:23:36,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:23:36,202 INFO L87 Difference]: Start difference. First operand 126 states and 144 transitions. Second operand 7 states. [2019-10-15 03:23:36,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:36,564 INFO L93 Difference]: Finished difference Result 227 states and 264 transitions. [2019-10-15 03:23:36,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:23:36,565 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-15 03:23:36,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:36,568 INFO L225 Difference]: With dead ends: 227 [2019-10-15 03:23:36,568 INFO L226 Difference]: Without dead ends: 126 [2019-10-15 03:23:36,571 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 03:23:36,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-10-15 03:23:36,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2019-10-15 03:23:36,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-10-15 03:23:36,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 143 transitions. [2019-10-15 03:23:36,601 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 143 transitions. Word has length 56 [2019-10-15 03:23:36,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:36,606 INFO L462 AbstractCegarLoop]: Abstraction has 126 states and 143 transitions. [2019-10-15 03:23:36,606 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:23:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 143 transitions. [2019-10-15 03:23:36,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-15 03:23:36,612 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:36,618 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] [2019-10-15 03:23:36,618 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:36,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:36,619 INFO L82 PathProgramCache]: Analyzing trace with hash -654841893, now seen corresponding path program 1 times [2019-10-15 03:23:36,619 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:36,619 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731996117] [2019-10-15 03:23:36,619 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:36,619 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:36,620 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:36,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:36,795 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 03:23:36,796 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731996117] [2019-10-15 03:23:36,796 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:36,796 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:23:36,798 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771469035] [2019-10-15 03:23:36,801 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:23:36,802 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:36,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:23:36,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:23:36,804 INFO L87 Difference]: Start difference. First operand 126 states and 143 transitions. Second operand 5 states. [2019-10-15 03:23:37,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:37,387 INFO L93 Difference]: Finished difference Result 329 states and 392 transitions. [2019-10-15 03:23:37,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:23:37,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2019-10-15 03:23:37,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:37,390 INFO L225 Difference]: With dead ends: 329 [2019-10-15 03:23:37,396 INFO L226 Difference]: Without dead ends: 228 [2019-10-15 03:23:37,397 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 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 03:23:37,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2019-10-15 03:23:37,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 211. [2019-10-15 03:23:37,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-10-15 03:23:37,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 235 transitions. [2019-10-15 03:23:37,439 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 235 transitions. Word has length 73 [2019-10-15 03:23:37,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:37,440 INFO L462 AbstractCegarLoop]: Abstraction has 211 states and 235 transitions. [2019-10-15 03:23:37,440 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:23:37,440 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 235 transitions. [2019-10-15 03:23:37,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-15 03:23:37,442 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:37,442 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] [2019-10-15 03:23:37,442 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:37,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:37,443 INFO L82 PathProgramCache]: Analyzing trace with hash 133990115, now seen corresponding path program 1 times [2019-10-15 03:23:37,443 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:37,443 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628204258] [2019-10-15 03:23:37,443 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:37,444 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:37,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:37,668 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 03:23:37,668 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628204258] [2019-10-15 03:23:37,668 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:37,669 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:23:37,669 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506580200] [2019-10-15 03:23:37,669 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:23:37,670 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:37,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:23:37,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:23:37,671 INFO L87 Difference]: Start difference. First operand 211 states and 235 transitions. Second operand 12 states. [2019-10-15 03:23:38,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:38,599 INFO L93 Difference]: Finished difference Result 561 states and 642 transitions. [2019-10-15 03:23:38,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:23:38,600 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 83 [2019-10-15 03:23:38,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:38,604 INFO L225 Difference]: With dead ends: 561 [2019-10-15 03:23:38,605 INFO L226 Difference]: Without dead ends: 375 [2019-10-15 03:23:38,606 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 03:23:38,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2019-10-15 03:23:38,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 363. [2019-10-15 03:23:38,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2019-10-15 03:23:38,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 414 transitions. [2019-10-15 03:23:38,643 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 414 transitions. Word has length 83 [2019-10-15 03:23:38,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:38,644 INFO L462 AbstractCegarLoop]: Abstraction has 363 states and 414 transitions. [2019-10-15 03:23:38,644 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:23:38,644 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 414 transitions. [2019-10-15 03:23:38,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-15 03:23:38,646 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:38,646 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] [2019-10-15 03:23:38,646 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:38,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:38,647 INFO L82 PathProgramCache]: Analyzing trace with hash -712728111, now seen corresponding path program 1 times [2019-10-15 03:23:38,647 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:38,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136152572] [2019-10-15 03:23:38,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:38,648 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:38,648 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:38,743 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 03:23:38,743 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136152572] [2019-10-15 03:23:38,743 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:38,744 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:23:38,744 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232051188] [2019-10-15 03:23:38,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:23:38,745 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:38,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:23:38,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:23:38,745 INFO L87 Difference]: Start difference. First operand 363 states and 414 transitions. Second operand 7 states. [2019-10-15 03:23:39,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:39,363 INFO L93 Difference]: Finished difference Result 729 states and 857 transitions. [2019-10-15 03:23:39,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:23:39,365 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-10-15 03:23:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:39,371 INFO L225 Difference]: With dead ends: 729 [2019-10-15 03:23:39,372 INFO L226 Difference]: Without dead ends: 391 [2019-10-15 03:23:39,374 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 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 03:23:39,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2019-10-15 03:23:39,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 360. [2019-10-15 03:23:39,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2019-10-15 03:23:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 405 transitions. [2019-10-15 03:23:39,422 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 405 transitions. Word has length 83 [2019-10-15 03:23:39,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:39,423 INFO L462 AbstractCegarLoop]: Abstraction has 360 states and 405 transitions. [2019-10-15 03:23:39,423 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:23:39,424 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 405 transitions. [2019-10-15 03:23:39,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-15 03:23:39,429 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:39,430 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] [2019-10-15 03:23:39,430 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:39,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:39,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1315543544, now seen corresponding path program 1 times [2019-10-15 03:23:39,431 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:39,431 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038472445] [2019-10-15 03:23:39,431 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:39,431 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:39,431 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:39,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:39,706 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 03:23:39,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038472445] [2019-10-15 03:23:39,709 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:39,709 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:23:39,709 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979969703] [2019-10-15 03:23:39,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:23:39,711 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:39,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:23:39,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:23:39,713 INFO L87 Difference]: Start difference. First operand 360 states and 405 transitions. Second operand 9 states. [2019-10-15 03:23:40,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:40,627 INFO L93 Difference]: Finished difference Result 1103 states and 1272 transitions. [2019-10-15 03:23:40,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:23:40,628 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2019-10-15 03:23:40,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:40,634 INFO L225 Difference]: With dead ends: 1103 [2019-10-15 03:23:40,634 INFO L226 Difference]: Without dead ends: 834 [2019-10-15 03:23:40,636 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 03:23:40,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2019-10-15 03:23:40,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 724. [2019-10-15 03:23:40,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2019-10-15 03:23:40,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 822 transitions. [2019-10-15 03:23:40,686 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 822 transitions. Word has length 86 [2019-10-15 03:23:40,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:40,686 INFO L462 AbstractCegarLoop]: Abstraction has 724 states and 822 transitions. [2019-10-15 03:23:40,686 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:23:40,686 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 822 transitions. [2019-10-15 03:23:40,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-10-15 03:23:40,697 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:40,697 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, 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, 1] [2019-10-15 03:23:40,698 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:40,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:40,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1528068328, now seen corresponding path program 1 times [2019-10-15 03:23:40,698 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:40,699 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138537467] [2019-10-15 03:23:40,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:40,699 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:40,699 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:40,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:40,919 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:23:40,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138537467] [2019-10-15 03:23:40,919 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715750318] [2019-10-15 03:23:40,920 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 03:23:41,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:41,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 953 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:23:41,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:23:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 25 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:23:41,330 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:23:41,793 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:23:41,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [288661105] [2019-10-15 03:23:41,819 INFO L162 IcfgInterpreter]: Started Sifa with 115 locations of interest [2019-10-15 03:23:41,820 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:23:41,825 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:23:41,833 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:23:41,834 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:23:51,397 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:23:53,213 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:23:53,344 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:53,478 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:53,638 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:53,849 WARN L191 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:54,034 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:54,266 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:54,456 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:54,757 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:23:54,901 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:55,039 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:55,156 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:55,267 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:55,488 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:55,499 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:23:55,781 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-15 03:23:55,783 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:23:55,913 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,052 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,225 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:56,347 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,459 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,584 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:56,733 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,837 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,968 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:57,216 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-15 03:23:57,346 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,549 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:57,665 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,769 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,897 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:58,116 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,253 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:58,575 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:58,797 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,936 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:59,038 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:59,264 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:59,600 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:59,803 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:59,927 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:00,127 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:00,253 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:00,376 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:00,508 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:00,635 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:00,820 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:00,945 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,087 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,206 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,321 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,465 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,579 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,693 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,819 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:01,954 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:02,073 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:02,203 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:02,459 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:24:02,575 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:02,705 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:02,909 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:24:03,028 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:03,154 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:03,284 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:03,407 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:03,545 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:03,664 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:03,779 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:03,909 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:24:04,044 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:04,159 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:04,287 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:24:04,528 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-15 03:24:04,647 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:04,792 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:24:04,909 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:05,024 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:05,149 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:24:05,277 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,394 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,532 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,650 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,764 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,898 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,012 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,130 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,263 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:06,486 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:24:06,613 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:06,755 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:06,978 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:24:07,097 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:07,234 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:07,443 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:24:07,559 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:07,687 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:07,907 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-15 03:24:08,024 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:08,158 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:08,376 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-15 03:24:08,493 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:24:08,630 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:24:08,760 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:08,875 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:09,019 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:09,135 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:09,250 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:09,380 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:09,493 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:09,611 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:09,751 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:09,882 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:09,997 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:10,127 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:10,244 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:10,356 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:10,485 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:10,596 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:10,710 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:10,832 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:11,076 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:24:11,192 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:11,334 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:11,561 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:24:11,679 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:11,811 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:24:11,934 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,043 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,166 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,278 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,388 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,515 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,780 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:12,920 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:13,043 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:13,238 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 564