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_product42.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:18:07,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:18:07,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:18:07,463 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:18:07,463 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:18:07,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:18:07,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:18:07,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:18:07,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:18:07,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:18:07,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:18:07,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:18:07,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:18:07,474 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:18:07,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:18:07,476 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:18:07,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:18:07,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:18:07,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:18:07,481 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:18:07,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:18:07,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:18:07,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:18:07,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:18:07,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:18:07,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:18:07,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:18:07,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:18:07,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:18:07,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:18:07,491 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:18:07,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:18:07,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:18:07,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:18:07,495 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:18:07,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:18:07,496 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:18:07,496 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:18:07,496 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:18:07,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:18:07,498 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:18:07,499 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:18:07,514 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:18:07,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:18:07,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:18:07,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:18:07,516 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:18:07,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:18:07,516 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:18:07,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:18:07,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:18:07,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:18:07,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:18:07,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:18:07,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:18:07,517 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:18:07,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:18:07,518 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:18:07,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:18:07,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:18:07,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:18:07,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:18:07,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:18:07,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:18:07,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:18:07,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:18:07,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:18:07,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:18:07,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:18:07,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:18:07,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:18:07,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:18:07,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:18:07,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:18:07,902 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:18:07,902 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:18:07,903 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2019-10-13 23:18:07,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b885fbf6/85529136cc7e494fa4e74e36440bb66d/FLAGbf50ba875 [2019-10-13 23:18:08,496 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:18:08,497 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product42.cil.c [2019-10-13 23:18:08,511 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b885fbf6/85529136cc7e494fa4e74e36440bb66d/FLAGbf50ba875 [2019-10-13 23:18:08,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b885fbf6/85529136cc7e494fa4e74e36440bb66d [2019-10-13 23:18:08,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:18:08,811 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:18:08,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:08,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:18:08,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:18:08,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:08" (1/1) ... [2019-10-13 23:18:08,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33f0203a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:08, skipping insertion in model container [2019-10-13 23:18:08,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:18:08" (1/1) ... [2019-10-13 23:18:08,827 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:18:08,898 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:18:09,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:09,428 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:18:09,517 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:18:09,561 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:18:09,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:09 WrapperNode [2019-10-13 23:18:09,562 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:18:09,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:18:09,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:18:09,563 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:18:09,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:09" (1/1) ... [2019-10-13 23:18:09,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:09" (1/1) ... [2019-10-13 23:18:09,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:09" (1/1) ... [2019-10-13 23:18:09,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:09" (1/1) ... [2019-10-13 23:18:09,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:09" (1/1) ... [2019-10-13 23:18:09,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:09" (1/1) ... [2019-10-13 23:18:09,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:09" (1/1) ... [2019-10-13 23:18:09,683 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:18:09,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:18:09,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:18:09,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:18:09,686 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:18:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:18:09,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:18:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:09,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:09,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:18:09,766 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:18:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:18:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:18:09,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:18:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:18:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:18:09,768 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:18:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:18:09,769 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:18:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:09,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:18:09,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:18:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:18:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:18:09,774 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:18:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:18:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:18:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:18:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:18:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:18:09,775 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:18:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:18:09,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:18:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:18:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-13 23:18:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:18:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:18:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:18:09,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:18:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:18:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:18:09,778 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-13 23:18:09,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:18:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:18:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:18:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:18:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:18:09,779 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:18:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-13 23:18:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-13 23:18:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-13 23:18:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:18:09,780 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:18:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:18:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:18:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:18:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:18:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:18:09,781 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:18:09,782 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:18:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:18:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:18:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:18:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:18:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:18:09,783 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:18:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:18:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:18:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:18:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:18:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:18:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:18:09,784 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:18:09,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:18:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:18:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:18:09,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:18:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:18:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:18:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:18:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:18:09,787 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:18:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:18:09,788 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:18:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:18:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:18:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-13 23:18:09,789 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:18:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:18:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:18:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:18:09,790 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:18:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-13 23:18:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:18:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:18:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:18:09,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:18:11,666 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:18:11,666 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:18:11,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:11 BoogieIcfgContainer [2019-10-13 23:18:11,669 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:18:11,670 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:18:11,670 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:18:11,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:18:11,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:18:08" (1/3) ... [2019-10-13 23:18:11,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da56f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:11, skipping insertion in model container [2019-10-13 23:18:11,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:18:09" (2/3) ... [2019-10-13 23:18:11,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2da56f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:18:11, skipping insertion in model container [2019-10-13 23:18:11,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:18:11" (3/3) ... [2019-10-13 23:18:11,678 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2019-10-13 23:18:11,688 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:18:11,698 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:18:11,710 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:18:11,757 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:18:11,757 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:18:11,758 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:18:11,758 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:18:11,758 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:18:11,758 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:18:11,758 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:18:11,759 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:18:11,793 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2019-10-13 23:18:11,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-13 23:18:11,809 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:11,810 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:11,816 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:11,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:11,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1536710141, now seen corresponding path program 1 times [2019-10-13 23:18:11,835 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:11,835 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328668333] [2019-10-13 23:18:11,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:11,836 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:11,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:12,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:12,208 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328668333] [2019-10-13 23:18:12,210 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:12,211 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:18:12,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110164099] [2019-10-13 23:18:12,217 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:18:12,218 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:12,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:18:12,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:12,235 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2019-10-13 23:18:12,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:12,287 INFO L93 Difference]: Finished difference Result 222 states and 265 transitions. [2019-10-13 23:18:12,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:18:12,288 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-13 23:18:12,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:12,302 INFO L225 Difference]: With dead ends: 222 [2019-10-13 23:18:12,303 INFO L226 Difference]: Without dead ends: 113 [2019-10-13 23:18:12,307 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:18:12,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-13 23:18:12,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-13 23:18:12,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-13 23:18:12,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 128 transitions. [2019-10-13 23:18:12,376 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 128 transitions. Word has length 52 [2019-10-13 23:18:12,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:12,377 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 128 transitions. [2019-10-13 23:18:12,377 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:18:12,378 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 128 transitions. [2019-10-13 23:18:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-13 23:18:12,381 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:12,381 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:12,382 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:12,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:12,382 INFO L82 PathProgramCache]: Analyzing trace with hash -1784540898, now seen corresponding path program 1 times [2019-10-13 23:18:12,383 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:12,383 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053768237] [2019-10-13 23:18:12,383 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:12,383 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:12,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:12,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:12,536 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053768237] [2019-10-13 23:18:12,536 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:12,536 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:18:12,537 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752350276] [2019-10-13 23:18:12,539 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:18:12,539 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:12,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:18:12,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:18:12,541 INFO L87 Difference]: Start difference. First operand 113 states and 128 transitions. Second operand 3 states. [2019-10-13 23:18:12,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:12,572 INFO L93 Difference]: Finished difference Result 176 states and 199 transitions. [2019-10-13 23:18:12,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:18:12,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-13 23:18:12,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:12,576 INFO L225 Difference]: With dead ends: 176 [2019-10-13 23:18:12,576 INFO L226 Difference]: Without dead ends: 105 [2019-10-13 23:18:12,578 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:18:12,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-10-13 23:18:12,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-10-13 23:18:12,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-10-13 23:18:12,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 117 transitions. [2019-10-13 23:18:12,600 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 117 transitions. Word has length 53 [2019-10-13 23:18:12,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:12,601 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 117 transitions. [2019-10-13 23:18:12,601 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:18:12,601 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 117 transitions. [2019-10-13 23:18:12,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-13 23:18:12,604 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:12,604 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:12,604 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:12,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:12,605 INFO L82 PathProgramCache]: Analyzing trace with hash -726809232, now seen corresponding path program 1 times [2019-10-13 23:18:12,605 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:12,605 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845392727] [2019-10-13 23:18:12,606 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:12,606 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:12,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:12,842 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845392727] [2019-10-13 23:18:12,842 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:12,842 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:12,842 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376989201] [2019-10-13 23:18:12,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:12,843 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:12,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:12,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:12,844 INFO L87 Difference]: Start difference. First operand 105 states and 117 transitions. Second operand 7 states. [2019-10-13 23:18:13,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:13,153 INFO L93 Difference]: Finished difference Result 185 states and 210 transitions. [2019-10-13 23:18:13,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:18:13,154 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-13 23:18:13,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:13,156 INFO L225 Difference]: With dead ends: 185 [2019-10-13 23:18:13,156 INFO L226 Difference]: Without dead ends: 105 [2019-10-13 23:18:13,158 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 [2019-10-13 23:18:13,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-10-13 23:18:13,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-10-13 23:18:13,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-10-13 23:18:13,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 116 transitions. [2019-10-13 23:18:13,170 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 116 transitions. Word has length 56 [2019-10-13 23:18:13,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:13,175 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 116 transitions. [2019-10-13 23:18:13,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:18:13,175 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 116 transitions. [2019-10-13 23:18:13,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-13 23:18:13,177 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:13,177 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] [2019-10-13 23:18:13,177 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:13,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:13,178 INFO L82 PathProgramCache]: Analyzing trace with hash -334964111, now seen corresponding path program 1 times [2019-10-13 23:18:13,180 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:13,180 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505549837] [2019-10-13 23:18:13,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:13,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:13,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:13,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:13,330 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505549837] [2019-10-13 23:18:13,330 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:13,330 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 23:18:13,331 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857830755] [2019-10-13 23:18:13,331 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 23:18:13,331 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:13,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 23:18:13,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-13 23:18:13,332 INFO L87 Difference]: Start difference. First operand 105 states and 116 transitions. Second operand 5 states. [2019-10-13 23:18:13,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:13,764 INFO L93 Difference]: Finished difference Result 270 states and 316 transitions. [2019-10-13 23:18:13,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:18:13,767 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-10-13 23:18:13,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:13,772 INFO L225 Difference]: With dead ends: 270 [2019-10-13 23:18:13,772 INFO L226 Difference]: Without dead ends: 190 [2019-10-13 23:18:13,773 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 [2019-10-13 23:18:13,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2019-10-13 23:18:13,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 173. [2019-10-13 23:18:13,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2019-10-13 23:18:13,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 194 transitions. [2019-10-13 23:18:13,818 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 194 transitions. Word has length 64 [2019-10-13 23:18:13,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:13,819 INFO L462 AbstractCegarLoop]: Abstraction has 173 states and 194 transitions. [2019-10-13 23:18:13,819 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 23:18:13,819 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 194 transitions. [2019-10-13 23:18:13,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-10-13 23:18:13,823 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:13,823 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:13,824 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:13,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:13,828 INFO L82 PathProgramCache]: Analyzing trace with hash -574106843, now seen corresponding path program 1 times [2019-10-13 23:18:13,828 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:13,829 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972976525] [2019-10-13 23:18:13,829 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:13,830 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:13,830 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:14,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 23:18:14,030 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972976525] [2019-10-13 23:18:14,030 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:14,030 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:18:14,030 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234262334] [2019-10-13 23:18:14,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:18:14,031 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:14,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:18:14,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:18:14,032 INFO L87 Difference]: Start difference. First operand 173 states and 194 transitions. Second operand 7 states. [2019-10-13 23:18:14,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:14,524 INFO L93 Difference]: Finished difference Result 337 states and 390 transitions. [2019-10-13 23:18:14,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:18:14,524 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-10-13 23:18:14,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:14,527 INFO L225 Difference]: With dead ends: 337 [2019-10-13 23:18:14,527 INFO L226 Difference]: Without dead ends: 189 [2019-10-13 23:18:14,529 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 [2019-10-13 23:18:14,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2019-10-13 23:18:14,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 172. [2019-10-13 23:18:14,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-10-13 23:18:14,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 191 transitions. [2019-10-13 23:18:14,546 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 191 transitions. Word has length 73 [2019-10-13 23:18:14,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:14,546 INFO L462 AbstractCegarLoop]: Abstraction has 172 states and 191 transitions. [2019-10-13 23:18:14,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:18:14,547 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 191 transitions. [2019-10-13 23:18:14,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-10-13 23:18:14,548 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:14,549 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:14,549 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:14,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:14,549 INFO L82 PathProgramCache]: Analyzing trace with hash 158832633, now seen corresponding path program 1 times [2019-10-13 23:18:14,549 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:14,550 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131358091] [2019-10-13 23:18:14,550 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:14,550 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:14,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:14,742 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131358091] [2019-10-13 23:18:14,743 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:14,743 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-13 23:18:14,743 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115689466] [2019-10-13 23:18:14,744 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-13 23:18:14,744 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:14,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-13 23:18:14,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-13 23:18:14,745 INFO L87 Difference]: Start difference. First operand 172 states and 191 transitions. Second operand 12 states. [2019-10-13 23:18:15,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:15,570 INFO L93 Difference]: Finished difference Result 458 states and 526 transitions. [2019-10-13 23:18:15,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-13 23:18:15,570 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 86 [2019-10-13 23:18:15,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:15,576 INFO L225 Difference]: With dead ends: 458 [2019-10-13 23:18:15,576 INFO L226 Difference]: Without dead ends: 311 [2019-10-13 23:18:15,577 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 [2019-10-13 23:18:15,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2019-10-13 23:18:15,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 302. [2019-10-13 23:18:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-10-13 23:18:15,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 344 transitions. [2019-10-13 23:18:15,607 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 344 transitions. Word has length 86 [2019-10-13 23:18:15,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:15,607 INFO L462 AbstractCegarLoop]: Abstraction has 302 states and 344 transitions. [2019-10-13 23:18:15,608 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-13 23:18:15,608 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 344 transitions. [2019-10-13 23:18:15,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-13 23:18:15,610 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:15,610 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:15,610 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:15,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:15,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1598295685, now seen corresponding path program 1 times [2019-10-13 23:18:15,611 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:15,611 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003476575] [2019-10-13 23:18:15,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:15,611 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:15,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:15,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:15,738 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-13 23:18:15,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003476575] [2019-10-13 23:18:15,739 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:18:15,739 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-13 23:18:15,739 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239576489] [2019-10-13 23:18:15,740 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-13 23:18:15,740 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:18:15,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-13 23:18:15,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:18:15,741 INFO L87 Difference]: Start difference. First operand 302 states and 344 transitions. Second operand 9 states. [2019-10-13 23:18:16,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:18:16,581 INFO L93 Difference]: Finished difference Result 940 states and 1100 transitions. [2019-10-13 23:18:16,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 23:18:16,582 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2019-10-13 23:18:16,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:18:16,590 INFO L225 Difference]: With dead ends: 940 [2019-10-13 23:18:16,590 INFO L226 Difference]: Without dead ends: 719 [2019-10-13 23:18:16,591 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-13 23:18:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2019-10-13 23:18:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 619. [2019-10-13 23:18:16,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-10-13 23:18:16,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 711 transitions. [2019-10-13 23:18:16,666 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 711 transitions. Word has length 89 [2019-10-13 23:18:16,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:18:16,666 INFO L462 AbstractCegarLoop]: Abstraction has 619 states and 711 transitions. [2019-10-13 23:18:16,666 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-13 23:18:16,667 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 711 transitions. [2019-10-13 23:18:16,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2019-10-13 23:18:16,669 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:18:16,669 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:18:16,670 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:18:16,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:18:16,670 INFO L82 PathProgramCache]: Analyzing trace with hash 30443821, now seen corresponding path program 1 times [2019-10-13 23:18:16,671 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:18:16,671 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075606769] [2019-10-13 23:18:16,671 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:16,671 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:18:16,671 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:18:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:16,806 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 23:18:16,806 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075606769] [2019-10-13 23:18:16,807 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [610625194] [2019-10-13 23:18:16,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:18:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:18:17,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:18:17,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:18:17,239 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:18:17,240 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:18:17,662 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 19 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-13 23:18:17,663 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1874605042] [2019-10-13 23:18:17,691 INFO L162 IcfgInterpreter]: Started Sifa with 98 locations of interest [2019-10-13 23:18:17,692 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:18:17,697 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:18:17,703 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:18:17,704 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:18:25,817 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:18:27,604 WARN L191 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:18:27,811 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:27,987 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:28,113 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:18:28,362 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:28,569 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:28,799 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:28,976 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:29,287 WARN L191 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:18:29,495 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:29,646 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:29,756 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:29,871 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:30,046 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:18:30,056 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:18:30,323 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-13 23:18:30,444 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:30,597 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:30,755 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:30,890 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:30,995 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:31,132 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:31,297 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:31,409 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:31,544 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:31,773 WARN L191 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 546 [2019-10-13 23:18:31,884 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:32,070 WARN L191 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:32,200 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:32,303 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:32,429 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:32,531 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:32,641 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:32,836 WARN L191 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:32,942 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:33,045 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:33,246 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:33,449 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:33,601 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:33,805 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:33,934 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,035 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:34,150 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:34,278 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,415 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:34,518 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:34,645 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:34,748 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:34,851 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:34,978 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:35,079 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:35,189 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-13 23:18:35,329 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:35,465 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:35,581 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:35,732 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:35,996 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:36,134 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:36,306 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:36,425 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:36,540 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:36,669 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:36,815 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:36,933 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:37,069 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:37,309 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:37,432 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:37,566 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:37,779 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:37,899 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:38,034 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:38,174 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:38,303 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:38,456 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:38,577 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:38,694 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:38,834 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:38,975 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:39,091 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:39,220 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:39,442 WARN L191 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-13 23:18:39,561 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:39,719 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:39,838 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:39,956 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:40,087 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:40,327 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:40,444 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:40,588 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:40,816 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:40,931 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:41,068 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:41,185 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:41,300 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:41,425 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:41,687 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:41,811 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:41,945 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:42,180 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:42,297 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:42,435 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:42,657 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:18:42,772 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:18:42,901 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:43,148 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 568 [2019-10-13 23:18:43,266 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:43,432 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:43,635 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 570 [2019-10-13 23:18:43,753 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:43,893 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:18:44,110 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:44,225 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:44,354 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:44,564 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:44,678 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:44,818 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:44,933 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:45,046 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:45,167 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:45,390 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:45,519 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:45,653 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:45,863 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:45,979 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,111 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,224 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,337 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,461 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:46,694 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:46,809 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:46,943 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:47,267 WARN L191 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 568 [2019-10-13 23:18:47,386 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:47,520 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:18:47,734 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:47,848 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:47,975 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,198 WARN L191 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:48,313 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,441 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,760 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:18:48,872 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:48,997 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:18:49,270 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564