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_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:19:32,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:19:32,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:19:32,154 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:19:32,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:19:32,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:19:32,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:19:32,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:19:32,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:19:32,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:19:32,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:19:32,163 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:19:32,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:19:32,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:19:32,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:19:32,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:19:32,167 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:19:32,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:19:32,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:19:32,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:19:32,174 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:19:32,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:19:32,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:19:32,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:19:32,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:19:32,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:19:32,180 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:19:32,181 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:19:32,181 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:19:32,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:19:32,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:19:32,186 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:19:32,187 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:19:32,188 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:19:32,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:19:32,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:19:32,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:19:32,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:19:32,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:19:32,195 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:19:32,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:19:32,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:19:32,221 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:19:32,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:19:32,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:19:32,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:19:32,224 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:19:32,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:19:32,224 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:19:32,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:19:32,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:19:32,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:19:32,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:19:32,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:19:32,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:19:32,226 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:19:32,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:19:32,227 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:19:32,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:19:32,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:19:32,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:19:32,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:19:32,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:19:32,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:19:32,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:19:32,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:19:32,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:19:32,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:19:32,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:19:32,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:19:32,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:19:32,492 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:19:32,506 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:19:32,509 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:19:32,511 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:19:32,511 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:19:32,512 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-10-13 23:19:32,573 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c18073b/287fc3ca14994948a1e55c79c1661125/FLAG6cc96d2f6 [2019-10-13 23:19:33,139 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:19:33,140 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-10-13 23:19:33,153 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c18073b/287fc3ca14994948a1e55c79c1661125/FLAG6cc96d2f6 [2019-10-13 23:19:33,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c18073b/287fc3ca14994948a1e55c79c1661125 [2019-10-13 23:19:33,418 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:19:33,420 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:19:33,421 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:19:33,421 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:19:33,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:19:33,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:19:33" (1/1) ... [2019-10-13 23:19:33,429 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 13.10 11:19:33, skipping insertion in model container [2019-10-13 23:19:33,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:19:33" (1/1) ... [2019-10-13 23:19:33,438 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:19:33,482 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:19:33,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:19:33,981 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:19:34,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:19:34,118 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:19:34,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34 WrapperNode [2019-10-13 23:19:34,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:19:34,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:19:34,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:19:34,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:19:34,132 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34" (1/1) ... [2019-10-13 23:19:34,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34" (1/1) ... [2019-10-13 23:19:34,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34" (1/1) ... [2019-10-13 23:19:34,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34" (1/1) ... [2019-10-13 23:19:34,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34" (1/1) ... [2019-10-13 23:19:34,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34" (1/1) ... [2019-10-13 23:19:34,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34" (1/1) ... [2019-10-13 23:19:34,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:19:34,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:19:34,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:19:34,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:19:34,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:19:34,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:19:34,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:19:34,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:19:34,291 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:19:34,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:19:34,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:19:34,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:19:34,292 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:19:34,292 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:19:34,293 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:19:34,293 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:19:34,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:19:34,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:19:34,293 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:19:34,293 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:19:34,294 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:19:34,294 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:19:34,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:19:34,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:19:34,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:19:34,295 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:19:34,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:19:34,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:19:34,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:19:34,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:19:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:19:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:19:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:19:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:19:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:19:34,296 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:19:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:19:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:19:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:19:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:19:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:19:34,297 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:19:34,298 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:19:34,298 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:19:34,298 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:19:34,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:19:34,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:19:34,298 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:19:34,299 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:19:34,299 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:19:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:19:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:19:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:19:34,299 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:19:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:19:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:19:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:19:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:19:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:19:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:19:34,300 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:19:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:19:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:19:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:19:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:19:34,301 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:19:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:19:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:19:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:19:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:19:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:19:34,302 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-10-13 23:19:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:19:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-13 23:19:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:19:34,303 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:19:34,304 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:19:34,304 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:19:34,304 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:19:34,304 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:19:34,304 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:19:34,304 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:19:34,305 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:19:34,305 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:19:34,305 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:19:34,305 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:19:34,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:19:34,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:19:34,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:19:34,306 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:19:34,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:19:34,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:19:34,306 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:19:34,306 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:19:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:19:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:19:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:19:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:19:34,307 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:19:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:19:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:19:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:19:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:19:34,308 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:19:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:19:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:19:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:19:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:19:34,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:19:35,901 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:19:35,902 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:19:35,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:19:35 BoogieIcfgContainer [2019-10-13 23:19:35,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:19:35,904 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:19:35,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:19:35,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:19:35,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:19:33" (1/3) ... [2019-10-13 23:19:35,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384b16b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:19:35, skipping insertion in model container [2019-10-13 23:19:35,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:19:34" (2/3) ... [2019-10-13 23:19:35,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384b16b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:19:35, skipping insertion in model container [2019-10-13 23:19:35,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:19:35" (3/3) ... [2019-10-13 23:19:35,911 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2019-10-13 23:19:35,922 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:19:35,933 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:19:35,945 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:19:35,984 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:19:35,985 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:19:35,985 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:19:35,985 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:19:35,987 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:19:35,987 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:19:35,987 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:19:35,988 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:19:36,018 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states. [2019-10-13 23:19:36,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 23:19:36,033 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:36,034 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:36,037 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:36,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:36,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1770503900, now seen corresponding path program 1 times [2019-10-13 23:19:36,057 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:36,057 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751470791] [2019-10-13 23:19:36,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:36,058 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:36,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:36,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:36,434 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751470791] [2019-10-13 23:19:36,435 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:36,443 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:19:36,444 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626938265] [2019-10-13 23:19:36,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:19:36,453 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:36,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:19:36,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:19:36,471 INFO L87 Difference]: Start difference. First operand 174 states. Second operand 2 states. [2019-10-13 23:19:36,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:36,520 INFO L93 Difference]: Finished difference Result 278 states and 337 transitions. [2019-10-13 23:19:36,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:19:36,522 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-13 23:19:36,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:36,536 INFO L225 Difference]: With dead ends: 278 [2019-10-13 23:19:36,536 INFO L226 Difference]: Without dead ends: 141 [2019-10-13 23:19:36,541 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:19:36,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-10-13 23:19:36,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2019-10-13 23:19:36,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2019-10-13 23:19:36,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 164 transitions. [2019-10-13 23:19:36,604 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 164 transitions. Word has length 52 [2019-10-13 23:19:36,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:36,604 INFO L462 AbstractCegarLoop]: Abstraction has 141 states and 164 transitions. [2019-10-13 23:19:36,604 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:19:36,605 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 164 transitions. [2019-10-13 23:19:36,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 23:19:36,609 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:36,609 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:36,609 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:36,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:36,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1772281623, now seen corresponding path program 1 times [2019-10-13 23:19:36,610 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:36,611 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979904713] [2019-10-13 23:19:36,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:36,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:36,611 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:36,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:36,778 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979904713] [2019-10-13 23:19:36,779 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:36,779 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:19:36,779 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844696781] [2019-10-13 23:19:36,782 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:19:36,782 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:36,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:19:36,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:19:36,784 INFO L87 Difference]: Start difference. First operand 141 states and 164 transitions. Second operand 3 states. [2019-10-13 23:19:36,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:36,826 INFO L93 Difference]: Finished difference Result 232 states and 271 transitions. [2019-10-13 23:19:36,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:19:36,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-13 23:19:36,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:36,858 INFO L225 Difference]: With dead ends: 232 [2019-10-13 23:19:36,858 INFO L226 Difference]: Without dead ends: 133 [2019-10-13 23:19:36,860 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:19:36,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-10-13 23:19:36,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-10-13 23:19:36,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-10-13 23:19:36,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 153 transitions. [2019-10-13 23:19:36,890 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 153 transitions. Word has length 53 [2019-10-13 23:19:36,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:36,890 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 153 transitions. [2019-10-13 23:19:36,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:19:36,890 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 153 transitions. [2019-10-13 23:19:36,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 23:19:36,893 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:36,893 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] [2019-10-13 23:19:36,894 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:36,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:36,894 INFO L82 PathProgramCache]: Analyzing trace with hash -229940485, now seen corresponding path program 1 times [2019-10-13 23:19:36,894 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:36,895 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112842689] [2019-10-13 23:19:36,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:36,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:36,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:36,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:37,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112842689] [2019-10-13 23:19:37,073 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:37,073 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:19:37,074 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702255244] [2019-10-13 23:19:37,075 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:19:37,075 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:37,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:19:37,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:19:37,076 INFO L87 Difference]: Start difference. First operand 133 states and 153 transitions. Second operand 7 states. [2019-10-13 23:19:37,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:37,504 INFO L93 Difference]: Finished difference Result 241 states and 282 transitions. [2019-10-13 23:19:37,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:19:37,505 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-13 23:19:37,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:37,509 INFO L225 Difference]: With dead ends: 241 [2019-10-13 23:19:37,509 INFO L226 Difference]: Without dead ends: 133 [2019-10-13 23:19:37,513 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 [2019-10-13 23:19:37,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2019-10-13 23:19:37,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2019-10-13 23:19:37,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-10-13 23:19:37,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 152 transitions. [2019-10-13 23:19:37,540 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 152 transitions. Word has length 56 [2019-10-13 23:19:37,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:37,547 INFO L462 AbstractCegarLoop]: Abstraction has 133 states and 152 transitions. [2019-10-13 23:19:37,547 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:19:37,547 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 152 transitions. [2019-10-13 23:19:37,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-13 23:19:37,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:37,550 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] [2019-10-13 23:19:37,550 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:37,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:37,551 INFO L82 PathProgramCache]: Analyzing trace with hash 2133725690, now seen corresponding path program 1 times [2019-10-13 23:19:37,551 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:37,551 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7390667] [2019-10-13 23:19:37,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,551 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:37,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:37,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:37,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:37,687 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7390667] [2019-10-13 23:19:37,688 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:37,691 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:19:37,692 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142668879] [2019-10-13 23:19:37,692 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:19:37,692 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:37,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:19:37,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:19:37,694 INFO L87 Difference]: Start difference. First operand 133 states and 152 transitions. Second operand 5 states. [2019-10-13 23:19:38,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:38,248 INFO L93 Difference]: Finished difference Result 351 states and 417 transitions. [2019-10-13 23:19:38,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:19:38,249 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2019-10-13 23:19:38,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:38,255 INFO L225 Difference]: With dead ends: 351 [2019-10-13 23:19:38,255 INFO L226 Difference]: Without dead ends: 243 [2019-10-13 23:19:38,256 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 [2019-10-13 23:19:38,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-10-13 23:19:38,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 226. [2019-10-13 23:19:38,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-10-13 23:19:38,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 251 transitions. [2019-10-13 23:19:38,302 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 251 transitions. Word has length 73 [2019-10-13 23:19:38,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:38,302 INFO L462 AbstractCegarLoop]: Abstraction has 226 states and 251 transitions. [2019-10-13 23:19:38,302 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:19:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 251 transitions. [2019-10-13 23:19:38,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-13 23:19:38,305 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:38,306 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:19:38,306 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:38,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:38,306 INFO L82 PathProgramCache]: Analyzing trace with hash 282239929, now seen corresponding path program 1 times [2019-10-13 23:19:38,307 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:38,307 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085198770] [2019-10-13 23:19:38,307 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,310 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:38,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:38,462 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:19:38,463 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085198770] [2019-10-13 23:19:38,463 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:38,463 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:19:38,463 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133389730] [2019-10-13 23:19:38,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:19:38,465 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:38,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:19:38,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:19:38,467 INFO L87 Difference]: Start difference. First operand 226 states and 251 transitions. Second operand 7 states. [2019-10-13 23:19:39,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:39,086 INFO L93 Difference]: Finished difference Result 443 states and 507 transitions. [2019-10-13 23:19:39,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:19:39,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-10-13 23:19:39,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:39,089 INFO L225 Difference]: With dead ends: 443 [2019-10-13 23:19:39,089 INFO L226 Difference]: Without dead ends: 242 [2019-10-13 23:19:39,091 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 [2019-10-13 23:19:39,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-10-13 23:19:39,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 225. [2019-10-13 23:19:39,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2019-10-13 23:19:39,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 248 transitions. [2019-10-13 23:19:39,112 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 248 transitions. Word has length 83 [2019-10-13 23:19:39,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:39,113 INFO L462 AbstractCegarLoop]: Abstraction has 225 states and 248 transitions. [2019-10-13 23:19:39,113 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:19:39,113 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 248 transitions. [2019-10-13 23:19:39,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-13 23:19:39,114 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:39,115 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, 1, 1] [2019-10-13 23:19:39,115 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:39,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:39,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1249289671, now seen corresponding path program 1 times [2019-10-13 23:19:39,116 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:39,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041244234] [2019-10-13 23:19:39,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:39,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:39,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:39,351 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:39,351 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041244234] [2019-10-13 23:19:39,351 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:39,352 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:19:39,352 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040522566] [2019-10-13 23:19:39,352 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:19:39,353 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:39,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:19:39,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:19:39,353 INFO L87 Difference]: Start difference. First operand 225 states and 248 transitions. Second operand 12 states. [2019-10-13 23:19:40,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:40,216 INFO L93 Difference]: Finished difference Result 584 states and 669 transitions. [2019-10-13 23:19:40,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:19:40,216 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2019-10-13 23:19:40,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:40,221 INFO L225 Difference]: With dead ends: 584 [2019-10-13 23:19:40,221 INFO L226 Difference]: Without dead ends: 384 [2019-10-13 23:19:40,222 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:19:40,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2019-10-13 23:19:40,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 375. [2019-10-13 23:19:40,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 375 states. [2019-10-13 23:19:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 375 states and 426 transitions. [2019-10-13 23:19:40,254 INFO L78 Accepts]: Start accepts. Automaton has 375 states and 426 transitions. Word has length 96 [2019-10-13 23:19:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:40,255 INFO L462 AbstractCegarLoop]: Abstraction has 375 states and 426 transitions. [2019-10-13 23:19:40,255 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:19:40,255 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 426 transitions. [2019-10-13 23:19:40,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-13 23:19:40,257 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:40,257 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, 1, 1, 1, 1, 1] [2019-10-13 23:19:40,258 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:40,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:40,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1716035124, now seen corresponding path program 1 times [2019-10-13 23:19:40,258 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:40,258 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596916620] [2019-10-13 23:19:40,259 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:40,259 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:40,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:40,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:19:40,388 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596916620] [2019-10-13 23:19:40,389 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:19:40,389 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:19:40,389 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870711130] [2019-10-13 23:19:40,389 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:19:40,390 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:19:40,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:19:40,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:19:40,390 INFO L87 Difference]: Start difference. First operand 375 states and 426 transitions. Second operand 9 states. [2019-10-13 23:19:41,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:19:41,485 INFO L93 Difference]: Finished difference Result 1163 states and 1358 transitions. [2019-10-13 23:19:41,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:19:41,486 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 99 [2019-10-13 23:19:41,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:19:41,492 INFO L225 Difference]: With dead ends: 1163 [2019-10-13 23:19:41,492 INFO L226 Difference]: Without dead ends: 879 [2019-10-13 23:19:41,494 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:19:41,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2019-10-13 23:19:41,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 769. [2019-10-13 23:19:41,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 769 states. [2019-10-13 23:19:41,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 880 transitions. [2019-10-13 23:19:41,551 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 880 transitions. Word has length 99 [2019-10-13 23:19:41,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:19:41,551 INFO L462 AbstractCegarLoop]: Abstraction has 769 states and 880 transitions. [2019-10-13 23:19:41,551 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:19:41,552 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 880 transitions. [2019-10-13 23:19:41,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2019-10-13 23:19:41,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:19:41,555 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, 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, 1, 1, 1] [2019-10-13 23:19:41,555 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:19:41,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:19:41,555 INFO L82 PathProgramCache]: Analyzing trace with hash 1968054454, now seen corresponding path program 1 times [2019-10-13 23:19:41,556 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:19:41,556 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436424395] [2019-10-13 23:19:41,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:41,556 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:19:41,556 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:19:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:41,701 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:19:41,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436424395] [2019-10-13 23:19:41,702 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336668190] [2019-10-13 23:19:41,703 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:19:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:19:41,978 INFO L256 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:19:42,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:19:42,171 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 31 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:19:42,171 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:19:42,666 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2019-10-13 23:19:42,666 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2037680775] [2019-10-13 23:19:42,703 INFO L162 IcfgInterpreter]: Started Sifa with 122 locations of interest [2019-10-13 23:19:42,703 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:19:42,710 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:19:42,718 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:19:42,718 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:19:51,337 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:19:53,123 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:19:53,252 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:53,400 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:53,531 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:19:53,838 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:54,084 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:54,323 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:54,583 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:54,940 WARN L191 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:19:55,145 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:55,280 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:55,425 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:55,549 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:55,700 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:19:55,709 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:19:56,013 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-13 23:19:56,015 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:19:56,184 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:56,307 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:56,477 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:56,588 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:56,822 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:56,953 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:57,083 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:57,272 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:57,467 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-13 23:19:57,735 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:57,859 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:58,076 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:58,181 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:58,310 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:58,430 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:58,647 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:58,766 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:58,974 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:59,103 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:59,416 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:59,628 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:19:59,771 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:19:59,873 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:20:00,089 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:00,418 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:00,619 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:20:00,738 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:00,874 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:00,986 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:01,107 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:01,406 WARN L191 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:20:01,517 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:01,644 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:01,755 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:01,868 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:01,988 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:02,119 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:02,241 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:02,370 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:02,589 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:20:02,700 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:02,971 WARN L191 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:03,215 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:20:03,333 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:03,456 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:03,572 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:20:03,685 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:20:03,824 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:20:03,940 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:04,054 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:04,186 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:04,328 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:04,444 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:04,570 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:04,705 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:04,820 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:05,041 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:05,308 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:05,506 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:05,632 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:05,854 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:20:05,970 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:06,098 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:06,297 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:20:06,407 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:06,533 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:06,644 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:06,756 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:06,888 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:07,023 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:07,135 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:07,273 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:07,499 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:20:07,618 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:07,743 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:07,942 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:20:08,052 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:08,174 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:08,388 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 573 [2019-10-13 23:20:08,502 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:20:08,633 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:20:08,840 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 575 [2019-10-13 23:20:08,955 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:09,086 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 575 [2019-10-13 23:20:09,298 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:20:09,408 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:09,538 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:09,756 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:20:09,867 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:09,995 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:10,108 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:10,217 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:10,334 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:10,552 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:20:10,668 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:10,789 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:10,986 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:20:11,094 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:11,215 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:11,324 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:11,432 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:11,553 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:20:11,778 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:20:11,888 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:12,016 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:12,215 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:20:12,325 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:12,448 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:12,558 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:12,668 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:20:12,790 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:20:12,996 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 573 [2019-10-13 23:20:13,109 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:20:13,232 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 573 [2019-10-13 23:20:13,437 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 575 [2019-10-13 23:20:13,549 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 575