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_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:22:44,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:22:44,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:22:44,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:22:44,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:22:44,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:22:44,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:22:44,249 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:22:44,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:22:44,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:22:44,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:22:44,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:22:44,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:22:44,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:22:44,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:22:44,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:22:44,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:22:44,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:22:44,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:22:44,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:22:44,279 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:22:44,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:22:44,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:22:44,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:22:44,288 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:22:44,288 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:22:44,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:22:44,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:22:44,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:22:44,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:22:44,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:22:44,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:22:44,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:22:44,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:22:44,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:22:44,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:22:44,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:22:44,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:22:44,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:22:44,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:22:44,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:22:44,301 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 03:22:44,319 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:22:44,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:22:44,321 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:22:44,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:22:44,322 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:22:44,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:22:44,322 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:22:44,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:22:44,323 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:22:44,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:22:44,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:22:44,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:22:44,324 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:22:44,325 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:22:44,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:22:44,325 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:22:44,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:22:44,326 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:22:44,326 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:22:44,326 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:22:44,326 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:22:44,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:22:44,327 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:22:44,327 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:22:44,327 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:22:44,328 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:22:44,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:22:44,328 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:22:44,328 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 03:22:44,647 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:22:44,659 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:22:44,663 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:22:44,664 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:22:44,664 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:22:44,665 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2019-10-15 03:22:44,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfbb53d9b/0aa3341707cb4beba39b2c6979aef64d/FLAG6c071b210 [2019-10-15 03:22:45,239 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:22:45,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2019-10-15 03:22:45,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfbb53d9b/0aa3341707cb4beba39b2c6979aef64d/FLAG6c071b210 [2019-10-15 03:22:45,538 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfbb53d9b/0aa3341707cb4beba39b2c6979aef64d [2019-10-15 03:22:45,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:22:45,551 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:22:45,552 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:45,552 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:22:45,556 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:22:45,557 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3a515f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:45, skipping insertion in model container [2019-10-15 03:22:45,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:45" (1/1) ... [2019-10-15 03:22:45,569 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:22:45,635 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:22:46,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:46,077 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:22:46,201 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:46,238 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:22:46,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:46 WrapperNode [2019-10-15 03:22:46,239 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:46,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:22:46,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:22:46,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:22:46,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:46" (1/1) ... [2019-10-15 03:22:46,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:46" (1/1) ... [2019-10-15 03:22:46,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:46" (1/1) ... [2019-10-15 03:22:46,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:46" (1/1) ... [2019-10-15 03:22:46,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:46" (1/1) ... [2019-10-15 03:22:46,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:46" (1/1) ... [2019-10-15 03:22:46,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:46" (1/1) ... [2019-10-15 03:22:46,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:22:46,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:22:46,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:22:46,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:22:46,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:46" (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 03:22:46,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:22:46,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:22:46,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:46,418 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:22:46,418 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:22:46,418 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:22:46,418 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:22:46,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:22:46,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:22:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:22:46,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:22:46,420 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:22:46,420 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:22:46,420 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:22:46,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:22:46,420 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:22:46,420 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:22:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:22:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:22:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:22:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:22:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:22:46,421 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:22:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:22:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:22:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:22:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:22:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:22:46,422 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-15 03:22:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:22:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:22:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:22:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:22:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:22:46,423 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:22:46,424 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:22:46,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:22:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:22:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:22:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:22:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:22:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:22:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:22:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:22:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:22:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:22:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:22:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:22:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:22:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:22:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:22:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:22:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:22:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:22:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:22:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:22:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:22:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:22:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:22:46,428 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:22:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:22:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:22:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:22:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:22:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:22:46,429 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-15 03:22:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:22:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:22:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:22:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:22:46,430 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:22:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:22:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:22:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:22:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:22:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:22:46,431 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:22:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:22:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:22:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:22:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:22:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:22:46,432 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:22:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:22:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:22:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:22:46,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:22:48,113 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:22:48,113 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:22:48,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:48 BoogieIcfgContainer [2019-10-15 03:22:48,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:22:48,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:22:48,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:22:48,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:22:48,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:22:45" (1/3) ... [2019-10-15 03:22:48,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0fd5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:48, skipping insertion in model container [2019-10-15 03:22:48,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:46" (2/3) ... [2019-10-15 03:22:48,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d0fd5fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:48, skipping insertion in model container [2019-10-15 03:22:48,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:48" (3/3) ... [2019-10-15 03:22:48,125 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2019-10-15 03:22:48,135 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:22:48,147 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:22:48,159 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:22:48,190 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:22:48,190 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:22:48,191 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:22:48,191 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:22:48,191 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:22:48,191 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:22:48,191 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:22:48,192 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:22:48,220 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states. [2019-10-15 03:22:48,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:22:48,234 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:48,235 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 03:22:48,237 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:48,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:48,245 INFO L82 PathProgramCache]: Analyzing trace with hash -555411208, now seen corresponding path program 1 times [2019-10-15 03:22:48,256 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:48,256 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306254753] [2019-10-15 03:22:48,256 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:48,257 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:48,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:48,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:48,683 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 03:22:48,684 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306254753] [2019-10-15 03:22:48,685 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:48,686 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:22:48,688 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921278174] [2019-10-15 03:22:48,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:22:48,695 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:48,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:22:48,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:22:48,713 INFO L87 Difference]: Start difference. First operand 133 states. Second operand 2 states. [2019-10-15 03:22:48,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:48,753 INFO L93 Difference]: Finished difference Result 196 states and 237 transitions. [2019-10-15 03:22:48,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:22:48,754 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-15 03:22:48,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:48,766 INFO L225 Difference]: With dead ends: 196 [2019-10-15 03:22:48,766 INFO L226 Difference]: Without dead ends: 100 [2019-10-15 03:22:48,770 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 03:22:48,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2019-10-15 03:22:48,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2019-10-15 03:22:48,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-10-15 03:22:48,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2019-10-15 03:22:48,826 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 52 [2019-10-15 03:22:48,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:48,827 INFO L462 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2019-10-15 03:22:48,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:22:48,827 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2019-10-15 03:22:48,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:22:48,831 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:48,831 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 03:22:48,831 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:48,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:48,832 INFO L82 PathProgramCache]: Analyzing trace with hash -514926620, now seen corresponding path program 1 times [2019-10-15 03:22:48,832 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:48,832 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140623224] [2019-10-15 03:22:48,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:48,833 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:48,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:48,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:49,006 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 03:22:49,007 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140623224] [2019-10-15 03:22:49,007 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:49,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:22:49,008 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850191064] [2019-10-15 03:22:49,010 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:22:49,011 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:49,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:22:49,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:49,012 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 3 states. [2019-10-15 03:22:49,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:49,060 INFO L93 Difference]: Finished difference Result 150 states and 171 transitions. [2019-10-15 03:22:49,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:22:49,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-15 03:22:49,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:49,066 INFO L225 Difference]: With dead ends: 150 [2019-10-15 03:22:49,066 INFO L226 Difference]: Without dead ends: 92 [2019-10-15 03:22:49,068 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 03:22:49,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-10-15 03:22:49,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2019-10-15 03:22:49,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-10-15 03:22:49,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 103 transitions. [2019-10-15 03:22:49,095 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 103 transitions. Word has length 53 [2019-10-15 03:22:49,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:49,096 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 103 transitions. [2019-10-15 03:22:49,096 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:22:49,096 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 103 transitions. [2019-10-15 03:22:49,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-15 03:22:49,103 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:49,103 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 03:22:49,105 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:49,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:49,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1606923527, now seen corresponding path program 1 times [2019-10-15 03:22:49,106 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:49,106 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392313281] [2019-10-15 03:22:49,106 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:49,107 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:49,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:49,310 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 03:22:49,310 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392313281] [2019-10-15 03:22:49,311 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:49,311 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:22:49,311 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382035196] [2019-10-15 03:22:49,315 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:49,315 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:49,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:49,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:49,316 INFO L87 Difference]: Start difference. First operand 92 states and 103 transitions. Second operand 7 states. [2019-10-15 03:22:49,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:49,547 INFO L93 Difference]: Finished difference Result 159 states and 182 transitions. [2019-10-15 03:22:49,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:22:49,548 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-15 03:22:49,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:49,549 INFO L225 Difference]: With dead ends: 159 [2019-10-15 03:22:49,550 INFO L226 Difference]: Without dead ends: 92 [2019-10-15 03:22:49,551 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:22:49,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-10-15 03:22:49,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2019-10-15 03:22:49,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2019-10-15 03:22:49,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 102 transitions. [2019-10-15 03:22:49,561 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 102 transitions. Word has length 56 [2019-10-15 03:22:49,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:49,563 INFO L462 AbstractCegarLoop]: Abstraction has 92 states and 102 transitions. [2019-10-15 03:22:49,563 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:49,563 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 102 transitions. [2019-10-15 03:22:49,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-15 03:22:49,565 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:49,566 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] [2019-10-15 03:22:49,566 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:49,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:49,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1937846974, now seen corresponding path program 1 times [2019-10-15 03:22:49,567 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:49,567 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151032716] [2019-10-15 03:22:49,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:49,567 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:49,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:49,650 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 03:22:49,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151032716] [2019-10-15 03:22:49,651 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:49,651 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:22:49,652 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838943971] [2019-10-15 03:22:49,652 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:22:49,652 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:49,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:22:49,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:22:49,653 INFO L87 Difference]: Start difference. First operand 92 states and 102 transitions. Second operand 5 states. [2019-10-15 03:22:50,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:50,051 INFO L93 Difference]: Finished difference Result 242 states and 286 transitions. [2019-10-15 03:22:50,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:22:50,052 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-10-15 03:22:50,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:50,059 INFO L225 Difference]: With dead ends: 242 [2019-10-15 03:22:50,059 INFO L226 Difference]: Without dead ends: 175 [2019-10-15 03:22:50,060 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:50,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2019-10-15 03:22:50,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 158. [2019-10-15 03:22:50,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-10-15 03:22:50,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 178 transitions. [2019-10-15 03:22:50,097 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 178 transitions. Word has length 64 [2019-10-15 03:22:50,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:50,103 INFO L462 AbstractCegarLoop]: Abstraction has 158 states and 178 transitions. [2019-10-15 03:22:50,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:22:50,103 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 178 transitions. [2019-10-15 03:22:50,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-15 03:22:50,107 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:50,107 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 03:22:50,107 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:50,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:50,108 INFO L82 PathProgramCache]: Analyzing trace with hash -947238170, now seen corresponding path program 1 times [2019-10-15 03:22:50,108 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:50,108 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91089076] [2019-10-15 03:22:50,109 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:50,109 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:50,109 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:50,366 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 03:22:50,366 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [91089076] [2019-10-15 03:22:50,366 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:50,367 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:22:50,367 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748621127] [2019-10-15 03:22:50,367 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:22:50,368 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:50,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:22:50,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:22:50,368 INFO L87 Difference]: Start difference. First operand 158 states and 178 transitions. Second operand 12 states. [2019-10-15 03:22:51,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:51,192 INFO L93 Difference]: Finished difference Result 435 states and 503 transitions. [2019-10-15 03:22:51,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:22:51,192 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 73 [2019-10-15 03:22:51,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:51,197 INFO L225 Difference]: With dead ends: 435 [2019-10-15 03:22:51,197 INFO L226 Difference]: Without dead ends: 302 [2019-10-15 03:22:51,198 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 03:22:51,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2019-10-15 03:22:51,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 290. [2019-10-15 03:22:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-10-15 03:22:51,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 334 transitions. [2019-10-15 03:22:51,239 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 334 transitions. Word has length 73 [2019-10-15 03:22:51,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:51,240 INFO L462 AbstractCegarLoop]: Abstraction has 290 states and 334 transitions. [2019-10-15 03:22:51,240 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:22:51,240 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 334 transitions. [2019-10-15 03:22:51,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-15 03:22:51,242 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:51,242 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 03:22:51,242 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:51,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:51,243 INFO L82 PathProgramCache]: Analyzing trace with hash -2105230958, now seen corresponding path program 1 times [2019-10-15 03:22:51,243 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:51,243 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983853205] [2019-10-15 03:22:51,243 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:51,244 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:51,244 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:51,419 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 03:22:51,420 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983853205] [2019-10-15 03:22:51,421 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:51,421 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:22:51,421 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984342406] [2019-10-15 03:22:51,422 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:51,422 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:51,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:51,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:51,423 INFO L87 Difference]: Start difference. First operand 290 states and 334 transitions. Second operand 7 states. [2019-10-15 03:22:51,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:51,937 INFO L93 Difference]: Finished difference Result 583 states and 693 transitions. [2019-10-15 03:22:51,938 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:22:51,938 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-10-15 03:22:51,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:51,942 INFO L225 Difference]: With dead ends: 583 [2019-10-15 03:22:51,942 INFO L226 Difference]: Without dead ends: 318 [2019-10-15 03:22:51,943 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 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 03:22:51,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2019-10-15 03:22:51,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 287. [2019-10-15 03:22:51,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2019-10-15 03:22:51,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 325 transitions. [2019-10-15 03:22:51,970 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 325 transitions. Word has length 73 [2019-10-15 03:22:51,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:51,971 INFO L462 AbstractCegarLoop]: Abstraction has 287 states and 325 transitions. [2019-10-15 03:22:51,971 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:51,971 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 325 transitions. [2019-10-15 03:22:51,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-10-15 03:22:51,973 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:51,973 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] [2019-10-15 03:22:51,973 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:51,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:51,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1158173324, now seen corresponding path program 1 times [2019-10-15 03:22:51,974 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:51,974 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704204202] [2019-10-15 03:22:51,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:51,974 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:51,975 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:52,125 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 03:22:52,125 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704204202] [2019-10-15 03:22:52,125 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:52,126 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:22:52,126 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891824301] [2019-10-15 03:22:52,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:22:52,127 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:52,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:22:52,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:22:52,127 INFO L87 Difference]: Start difference. First operand 287 states and 325 transitions. Second operand 9 states. [2019-10-15 03:22:52,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:52,860 INFO L93 Difference]: Finished difference Result 880 states and 1022 transitions. [2019-10-15 03:22:52,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:22:52,861 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 76 [2019-10-15 03:22:52,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:52,866 INFO L225 Difference]: With dead ends: 880 [2019-10-15 03:22:52,867 INFO L226 Difference]: Without dead ends: 674 [2019-10-15 03:22:52,868 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 [2019-10-15 03:22:52,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2019-10-15 03:22:52,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 574. [2019-10-15 03:22:52,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 574 states. [2019-10-15 03:22:52,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 574 states and 657 transitions. [2019-10-15 03:22:52,911 INFO L78 Accepts]: Start accepts. Automaton has 574 states and 657 transitions. Word has length 76 [2019-10-15 03:22:52,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:52,912 INFO L462 AbstractCegarLoop]: Abstraction has 574 states and 657 transitions. [2019-10-15 03:22:52,912 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:22:52,912 INFO L276 IsEmpty]: Start isEmpty. Operand 574 states and 657 transitions. [2019-10-15 03:22:52,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-15 03:22:52,914 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:52,915 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:22:52,915 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:52,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:52,915 INFO L82 PathProgramCache]: Analyzing trace with hash -234265357, now seen corresponding path program 1 times [2019-10-15 03:22:52,916 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:52,916 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161492417] [2019-10-15 03:22:52,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:52,916 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:52,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:52,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 03:22:53,041 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161492417] [2019-10-15 03:22:53,041 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025395381] [2019-10-15 03:22:53,041 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 03:22:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:53,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:22:53,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:22:53,483 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:22:53,484 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:22:53,792 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 03:22:53,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2132518846] [2019-10-15 03:22:53,821 INFO L162 IcfgInterpreter]: Started Sifa with 85 locations of interest [2019-10-15 03:22:53,821 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:22:53,828 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:22:53,834 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:22:53,835 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:23:04,158 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:23:05,819 WARN L191 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:23:05,964 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:06,086 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:06,240 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:06,510 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:06,756 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:07,039 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:07,289 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:07,712 WARN L191 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:23:07,887 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:08,061 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:08,210 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:08,325 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:08,448 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:08,458 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:23:08,750 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:23:08,857 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:08,959 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:09,115 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:09,255 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:09,497 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:09,631 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:09,763 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:09,901 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:10,150 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-15 03:23:10,428 WARN L191 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:10,557 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:10,660 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:10,781 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:10,890 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:11,224 WARN L191 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:11,430 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:11,587 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:11,735 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:11,852 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:11,961 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,123 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:12,438 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:12,766 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:12,973 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,095 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:13,411 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:13,522 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,643 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,765 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:13,921 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,032 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,182 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,392 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:14,527 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,657 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,770 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:14,882 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,013 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:15,145 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:15,266 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:15,430 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:15,664 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:15,780 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:15,907 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:16,112 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-15 03:23:16,226 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:16,355 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:16,471 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:16,585 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:16,717 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:16,832 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:16,949 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:17,077 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:17,232 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:17,367 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:17,500 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:17,737 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-15 03:23:17,862 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:18,008 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:18,122 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:18,237 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:18,403 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:18,645 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:18,759 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:18,895 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,105 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:19,219 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,353 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,476 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,595 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,718 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,869 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:19,985 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:20,125 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:20,342 WARN L191 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:23:20,456 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:20,592 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:20,790 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-15 03:23:20,903 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:21,028 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:21,239 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-15 03:23:21,356 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:21,486 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:21,715 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-15 03:23:21,832 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:21,966 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-15 03:23:22,189 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:22,302 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:22,431 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:22,643 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:22,760 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:22,888 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,002 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,116 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,237 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,455 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:23,568 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,698 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,916 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:24,030 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,177 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,290 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,403 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,525 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,671 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:24,786 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:24,924 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:25,045 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:25,167 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:25,302 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-15 03:23:25,516 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:25,629 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:25,754 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564