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_product53.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:23:30,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:23:30,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:23:30,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:23:30,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:23:30,471 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:23:30,473 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:23:30,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:23:30,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:23:30,477 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:23:30,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:23:30,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:23:30,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:23:30,481 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:23:30,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:23:30,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:23:30,484 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:23:30,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:23:30,487 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:23:30,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:23:30,491 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:23:30,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:23:30,493 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:23:30,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:23:30,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:23:30,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:23:30,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:23:30,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:23:30,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:23:30,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:23:30,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:23:30,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:23:30,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:23:30,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:23:30,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:23:30,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:23:30,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:23:30,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:23:30,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:23:30,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:23:30,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:23:30,507 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:23:30,521 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:23:30,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:23:30,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:23:30,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:23:30,523 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:23:30,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:23:30,524 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:23:30,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:23:30,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:23:30,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:23:30,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:23:30,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:23:30,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:23:30,525 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:23:30,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:23:30,525 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:23:30,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:23:30,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:23:30,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:23:30,527 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:23:30,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:23:30,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:23:30,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:23:30,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:23:30,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:23:30,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:23:30,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:23:30,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:23:30,528 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:23:30,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:23:30,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:23:30,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:23:30,845 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:23:30,846 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:23:30,847 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product53.cil.c [2019-10-15 03:23:30,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d12e09ea/fe6796c6b20a45229e64b3b5083aea64/FLAG3995a17e6 [2019-10-15 03:23:31,517 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:23:31,519 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product53.cil.c [2019-10-15 03:23:31,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d12e09ea/fe6796c6b20a45229e64b3b5083aea64/FLAG3995a17e6 [2019-10-15 03:23:31,799 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d12e09ea/fe6796c6b20a45229e64b3b5083aea64 [2019-10-15 03:23:31,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:23:31,813 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:23:31,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:23:31,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:23:31,818 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:23:31,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:31" (1/1) ... [2019-10-15 03:23:31,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57150996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:31, skipping insertion in model container [2019-10-15 03:23:31,823 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:23:31" (1/1) ... [2019-10-15 03:23:31,832 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:23:31,900 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:23:32,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:23:32,365 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:23:32,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:23:32,506 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:23:32,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32 WrapperNode [2019-10-15 03:23:32,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:23:32,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:23:32,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:23:32,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:23:32,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32" (1/1) ... [2019-10-15 03:23:32,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32" (1/1) ... [2019-10-15 03:23:32,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32" (1/1) ... [2019-10-15 03:23:32,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32" (1/1) ... [2019-10-15 03:23:32,624 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32" (1/1) ... [2019-10-15 03:23:32,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32" (1/1) ... [2019-10-15 03:23:32,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32" (1/1) ... [2019-10-15 03:23:32,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:23:32,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:23:32,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:23:32,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:23:32,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:23:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:23:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:23:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:23:32,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:23:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:23:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:23:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:23:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:23:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:23:32,722 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:23:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:23:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:23:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-15 03:23:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:23:32,723 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:23:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:23:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:23:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:23:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:23:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:23:32,724 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:23:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:23:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:23:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:23:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:23:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:23:32,725 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:23:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:23:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:23:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:23:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:23:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:23:32,726 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:23:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:23:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:23:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:23:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:23:32,727 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:23:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:23:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:23:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:23:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:23:32,728 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:23:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:23:32,728 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:23:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:23:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:23:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:23:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:23:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:23:32,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:23:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:23:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:23:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:23:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:23:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:23:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:23:32,730 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:23:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:23:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:23:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:23:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:23:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:23:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:23:32,731 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:23:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:23:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:23:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:23:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:23:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:23:32,732 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:23:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:23:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:23:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:23:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:23:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:23:32,733 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:23:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:23:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:23:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:23:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-15 03:23:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:23:32,734 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:23:32,735 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:23:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:23:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:23:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:23:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:23:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:23:32,736 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:23:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:23:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:23:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:23:32,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:23:34,450 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:23:34,450 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:23:34,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:34 BoogieIcfgContainer [2019-10-15 03:23:34,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:23:34,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:23:34,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:23:34,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:23:34,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:23:31" (1/3) ... [2019-10-15 03:23:34,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54acb2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:34, skipping insertion in model container [2019-10-15 03:23:34,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:23:32" (2/3) ... [2019-10-15 03:23:34,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54acb2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:23:34, skipping insertion in model container [2019-10-15 03:23:34,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:23:34" (3/3) ... [2019-10-15 03:23:34,462 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2019-10-15 03:23:34,473 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:23:34,487 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:23:34,503 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:23:34,555 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:23:34,556 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:23:34,556 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:23:34,556 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:23:34,557 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:23:34,558 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:23:34,558 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:23:34,558 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:23:34,593 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2019-10-15 03:23:34,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:23:34,610 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:34,611 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:23:34,615 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:34,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:34,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1858823632, now seen corresponding path program 1 times [2019-10-15 03:23:34,633 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:34,633 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22355332] [2019-10-15 03:23:34,634 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:34,639 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:34,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:34,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:35,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:35,010 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22355332] [2019-10-15 03:23:35,011 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:35,012 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:23:35,012 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567712540] [2019-10-15 03:23:35,018 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:23:35,018 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:35,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:23:35,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:23:35,037 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2019-10-15 03:23:35,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:35,106 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2019-10-15 03:23:35,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:23:35,108 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-15 03:23:35,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:35,122 INFO L225 Difference]: With dead ends: 256 [2019-10-15 03:23:35,123 INFO L226 Difference]: Without dead ends: 130 [2019-10-15 03:23:35,128 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:23:35,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2019-10-15 03:23:35,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2019-10-15 03:23:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2019-10-15 03:23:35,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 150 transitions. [2019-10-15 03:23:35,189 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 150 transitions. Word has length 52 [2019-10-15 03:23:35,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:35,190 INFO L462 AbstractCegarLoop]: Abstraction has 130 states and 150 transitions. [2019-10-15 03:23:35,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:23:35,191 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 150 transitions. [2019-10-15 03:23:35,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:23:35,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:35,195 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:23:35,195 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:35,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:35,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1915705651, now seen corresponding path program 1 times [2019-10-15 03:23:35,196 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:35,197 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605590693] [2019-10-15 03:23:35,197 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:35,197 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:35,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:35,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:35,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:35,329 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605590693] [2019-10-15 03:23:35,329 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:35,329 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:23:35,330 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799398733] [2019-10-15 03:23:35,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:23:35,332 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:35,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:23:35,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:23:35,333 INFO L87 Difference]: Start difference. First operand 130 states and 150 transitions. Second operand 3 states. [2019-10-15 03:23:35,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:35,358 INFO L93 Difference]: Finished difference Result 214 states and 248 transitions. [2019-10-15 03:23:35,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:23:35,359 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-15 03:23:35,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:35,362 INFO L225 Difference]: With dead ends: 214 [2019-10-15 03:23:35,362 INFO L226 Difference]: Without dead ends: 122 [2019-10-15 03:23:35,364 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:23:35,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-15 03:23:35,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-15 03:23:35,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-15 03:23:35,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 139 transitions. [2019-10-15 03:23:35,381 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 139 transitions. Word has length 53 [2019-10-15 03:23:35,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:35,382 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 139 transitions. [2019-10-15 03:23:35,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:23:35,382 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 139 transitions. [2019-10-15 03:23:35,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 03:23:35,385 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:35,385 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] [2019-10-15 03:23:35,385 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:35,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:35,386 INFO L82 PathProgramCache]: Analyzing trace with hash 197549147, now seen corresponding path program 1 times [2019-10-15 03:23:35,386 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:35,386 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700824913] [2019-10-15 03:23:35,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:35,387 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:35,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:35,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:35,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:35,627 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700824913] [2019-10-15 03:23:35,628 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:35,628 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:23:35,628 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348834127] [2019-10-15 03:23:35,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:23:35,630 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:35,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:23:35,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:23:35,631 INFO L87 Difference]: Start difference. First operand 122 states and 139 transitions. Second operand 7 states. [2019-10-15 03:23:36,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:36,058 INFO L93 Difference]: Finished difference Result 219 states and 254 transitions. [2019-10-15 03:23:36,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:23:36,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-10-15 03:23:36,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:36,063 INFO L225 Difference]: With dead ends: 219 [2019-10-15 03:23:36,063 INFO L226 Difference]: Without dead ends: 122 [2019-10-15 03:23:36,065 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:23:36,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-10-15 03:23:36,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-10-15 03:23:36,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-10-15 03:23:36,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 138 transitions. [2019-10-15 03:23:36,096 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 138 transitions. Word has length 55 [2019-10-15 03:23:36,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:36,102 INFO L462 AbstractCegarLoop]: Abstraction has 122 states and 138 transitions. [2019-10-15 03:23:36,102 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:23:36,102 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 138 transitions. [2019-10-15 03:23:36,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-15 03:23:36,113 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:36,114 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] [2019-10-15 03:23:36,114 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:36,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:36,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1962341455, now seen corresponding path program 1 times [2019-10-15 03:23:36,115 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:36,115 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257082492] [2019-10-15 03:23:36,115 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:36,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:36,116 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:36,281 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:36,281 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257082492] [2019-10-15 03:23:36,281 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:36,282 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:23:36,282 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210922453] [2019-10-15 03:23:36,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:23:36,284 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:36,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:23:36,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:23:36,286 INFO L87 Difference]: Start difference. First operand 122 states and 138 transitions. Second operand 5 states. [2019-10-15 03:23:36,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:36,865 INFO L93 Difference]: Finished difference Result 315 states and 373 transitions. [2019-10-15 03:23:36,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:23:36,866 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-10-15 03:23:36,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:36,869 INFO L225 Difference]: With dead ends: 315 [2019-10-15 03:23:36,869 INFO L226 Difference]: Without dead ends: 218 [2019-10-15 03:23:36,871 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-15 03:23:36,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2019-10-15 03:23:36,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 203. [2019-10-15 03:23:36,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2019-10-15 03:23:36,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 225 transitions. [2019-10-15 03:23:36,905 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 225 transitions. Word has length 72 [2019-10-15 03:23:36,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:36,906 INFO L462 AbstractCegarLoop]: Abstraction has 203 states and 225 transitions. [2019-10-15 03:23:36,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:23:36,906 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 225 transitions. [2019-10-15 03:23:36,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-15 03:23:36,908 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:36,908 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] [2019-10-15 03:23:36,908 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:36,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1605617855, now seen corresponding path program 1 times [2019-10-15 03:23:36,909 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:36,909 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124606176] [2019-10-15 03:23:36,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:36,909 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:36,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:37,139 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:37,140 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124606176] [2019-10-15 03:23:37,141 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:37,141 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:23:37,141 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146313165] [2019-10-15 03:23:37,143 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:23:37,143 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:37,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:23:37,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:23:37,145 INFO L87 Difference]: Start difference. First operand 203 states and 225 transitions. Second operand 12 states. [2019-10-15 03:23:38,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:38,170 INFO L93 Difference]: Finished difference Result 533 states and 607 transitions. [2019-10-15 03:23:38,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:23:38,171 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2019-10-15 03:23:38,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:38,175 INFO L225 Difference]: With dead ends: 533 [2019-10-15 03:23:38,176 INFO L226 Difference]: Without dead ends: 355 [2019-10-15 03:23:38,177 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-15 03:23:38,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2019-10-15 03:23:38,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 343. [2019-10-15 03:23:38,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2019-10-15 03:23:38,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 389 transitions. [2019-10-15 03:23:38,214 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 389 transitions. Word has length 82 [2019-10-15 03:23:38,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:38,215 INFO L462 AbstractCegarLoop]: Abstraction has 343 states and 389 transitions. [2019-10-15 03:23:38,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:23:38,215 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 389 transitions. [2019-10-15 03:23:38,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-10-15 03:23:38,218 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:38,218 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] [2019-10-15 03:23:38,219 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:38,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:38,219 INFO L82 PathProgramCache]: Analyzing trace with hash -1607212558, now seen corresponding path program 1 times [2019-10-15 03:23:38,219 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:38,220 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388021258] [2019-10-15 03:23:38,220 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:38,220 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:38,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:38,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:38,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:23:38,347 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388021258] [2019-10-15 03:23:38,348 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:38,348 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:23:38,348 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806093542] [2019-10-15 03:23:38,349 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:23:38,349 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:38,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:23:38,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:23:38,350 INFO L87 Difference]: Start difference. First operand 343 states and 389 transitions. Second operand 7 states. [2019-10-15 03:23:38,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:38,966 INFO L93 Difference]: Finished difference Result 685 states and 799 transitions. [2019-10-15 03:23:38,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:23:38,967 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2019-10-15 03:23:38,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:38,974 INFO L225 Difference]: With dead ends: 685 [2019-10-15 03:23:38,974 INFO L226 Difference]: Without dead ends: 367 [2019-10-15 03:23:38,976 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:23:38,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2019-10-15 03:23:39,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 340. [2019-10-15 03:23:39,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-10-15 03:23:39,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 380 transitions. [2019-10-15 03:23:39,027 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 380 transitions. Word has length 82 [2019-10-15 03:23:39,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:39,030 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 380 transitions. [2019-10-15 03:23:39,030 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:23:39,030 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 380 transitions. [2019-10-15 03:23:39,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-15 03:23:39,035 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:39,035 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] [2019-10-15 03:23:39,036 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:39,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:39,036 INFO L82 PathProgramCache]: Analyzing trace with hash -291312043, now seen corresponding path program 1 times [2019-10-15 03:23:39,036 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:39,036 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130879040] [2019-10-15 03:23:39,037 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:39,037 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:39,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:39,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:23:39,267 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130879040] [2019-10-15 03:23:39,267 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:23:39,268 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:23:39,268 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696302425] [2019-10-15 03:23:39,268 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:23:39,269 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:23:39,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:23:39,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:23:39,270 INFO L87 Difference]: Start difference. First operand 340 states and 380 transitions. Second operand 9 states. [2019-10-15 03:23:40,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:23:40,170 INFO L93 Difference]: Finished difference Result 1035 states and 1187 transitions. [2019-10-15 03:23:40,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:23:40,171 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2019-10-15 03:23:40,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:23:40,176 INFO L225 Difference]: With dead ends: 1035 [2019-10-15 03:23:40,177 INFO L226 Difference]: Without dead ends: 782 [2019-10-15 03:23:40,178 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 03:23:40,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2019-10-15 03:23:40,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 680. [2019-10-15 03:23:40,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2019-10-15 03:23:40,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 767 transitions. [2019-10-15 03:23:40,226 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 767 transitions. Word has length 85 [2019-10-15 03:23:40,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:23:40,226 INFO L462 AbstractCegarLoop]: Abstraction has 680 states and 767 transitions. [2019-10-15 03:23:40,226 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:23:40,227 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 767 transitions. [2019-10-15 03:23:40,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2019-10-15 03:23:40,229 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:23:40,229 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:23:40,230 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:23:40,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:23:40,230 INFO L82 PathProgramCache]: Analyzing trace with hash -785132374, now seen corresponding path program 1 times [2019-10-15 03:23:40,231 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:23:40,231 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230425589] [2019-10-15 03:23:40,231 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:40,231 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:23:40,231 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:23:40,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:23:40,395 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230425589] [2019-10-15 03:23:40,395 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756939992] [2019-10-15 03:23:40,395 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:23:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:23:40,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:23:40,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:23:40,798 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:23:40,798 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:23:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:23:41,239 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [172352338] [2019-10-15 03:23:41,277 INFO L162 IcfgInterpreter]: Started Sifa with 114 locations of interest [2019-10-15 03:23:41,277 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:23:41,286 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:23:41,295 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:23:41,296 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:23:51,162 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:23:52,750 WARN L191 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:23:52,880 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:53,013 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:53,145 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:53,455 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:53,743 WARN L191 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:53,980 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:54,231 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:54,580 WARN L191 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:23:54,785 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:54,937 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:55,074 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:55,209 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:55,425 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:55,436 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:23:55,712 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:23:55,830 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:55,966 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,146 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:56,268 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,370 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,499 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:56,619 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,751 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:56,892 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:57,110 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-15 03:23:57,227 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,457 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:57,570 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,672 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:57,818 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:58,023 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,175 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:58,302 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,420 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,541 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:58,646 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,749 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:58,908 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:59,015 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:59,238 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:59,341 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:59,445 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:59,569 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:59,685 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:59,907 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:00,012 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:00,235 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:00,345 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:00,491 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:24:00,613 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:00,766 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:00,877 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:01,012 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:01,291 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:01,403 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:01,547 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:01,663 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:01,775 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:01,895 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:02,049 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:02,166 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:02,294 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:02,557 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:24:02,702 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:02,971 WARN L191 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:03,209 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:24:03,321 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:03,446 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:03,561 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:03,679 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:03,889 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:04,004 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:04,122 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:04,261 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:04,404 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:04,518 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:04,644 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:04,874 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:24:04,990 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,118 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:05,236 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,350 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:05,479 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:05,744 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:05,855 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:05,982 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:06,200 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:06,311 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:06,445 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:06,561 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:06,672 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:06,817 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:07,042 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:24:07,167 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:07,294 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:07,525 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:24:07,643 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:07,799 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:07,912 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:08,030 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:08,157 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:08,363 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:24:08,480 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:24:08,607 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:08,805 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:24:08,922 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:24:09,058 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:24:09,282 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:09,409 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:09,538 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:09,739 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:09,864 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:09,991 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:10,102 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:10,217 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:10,338 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:10,549 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:10,659 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:10,787 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:10,990 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:24:11,106 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:11,234 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:11,356 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:11,485 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:24:11,611 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 560