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_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:22:47,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:22:47,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:22:47,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:22:47,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:22:47,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:22:47,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:22:47,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:22:47,539 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:22:47,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:22:47,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:22:47,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:22:47,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:22:47,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:22:47,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:22:47,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:22:47,554 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:22:47,555 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:22:47,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:22:47,562 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:22:47,567 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:22:47,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:22:47,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:22:47,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:22:47,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:22:47,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:22:47,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:22:47,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:22:47,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:22:47,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:22:47,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:22:47,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:22:47,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:22:47,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:22:47,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:22:47,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:22:47,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:22:47,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:22:47,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:22:47,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:22:47,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:22:47,589 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:22:47,616 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:22:47,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:22:47,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:22:47,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:22:47,619 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:22:47,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:22:47,620 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:22:47,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:22:47,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:22:47,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:22:47,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:22:47,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:22:47,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:22:47,622 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:22:47,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:22:47,623 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:22:47,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:22:47,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:22:47,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:22:47,623 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:22:47,623 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:22:47,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:22:47,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:22:47,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:22:47,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:22:47,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:22:47,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:22:47,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:22:47,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:22:47,906 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:22:47,919 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:22:47,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:22:47,924 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:22:47,924 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:22:47,925 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c [2019-10-15 03:22:47,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd90ac9d2/f6b755f40c1d4522a48bc5f48de01f88/FLAG5223cfa39 [2019-10-15 03:22:48,546 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:22:48,550 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product41.cil.c [2019-10-15 03:22:48,579 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd90ac9d2/f6b755f40c1d4522a48bc5f48de01f88/FLAG5223cfa39 [2019-10-15 03:22:48,846 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd90ac9d2/f6b755f40c1d4522a48bc5f48de01f88 [2019-10-15 03:22:48,857 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:22:48,859 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:22:48,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:48,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:22:48,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:22:48,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:48" (1/1) ... [2019-10-15 03:22:48,870 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3863fac2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:48, skipping insertion in model container [2019-10-15 03:22:48,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:22:48" (1/1) ... [2019-10-15 03:22:48,877 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:22:48,918 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:22:49,426 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:49,441 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:22:49,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:22:49,621 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:22:49,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:49 WrapperNode [2019-10-15 03:22:49,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:22:49,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:22:49,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:22:49,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:22:49,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:49" (1/1) ... [2019-10-15 03:22:49,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:49" (1/1) ... [2019-10-15 03:22:49,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:49" (1/1) ... [2019-10-15 03:22:49,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:49" (1/1) ... [2019-10-15 03:22:49,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:49" (1/1) ... [2019-10-15 03:22:49,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:49" (1/1) ... [2019-10-15 03:22:49,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:49" (1/1) ... [2019-10-15 03:22:49,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:22:49,738 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:22:49,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:22:49,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:22:49,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:22:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:22:49,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:22:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:22:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:22:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:22:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:22:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:22:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:22:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:22:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:22:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:22:49,808 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:22:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:22:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:22:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:22:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:22:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:22:49,809 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:22:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:22:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:22:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-10-15 03:22:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:22:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:22:49,810 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:22:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:22:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:22:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:22:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:22:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:49,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:22:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:22:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:22:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:22:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:22:49,812 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:22:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:22:49,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:22:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:22:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:22:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:22:49,813 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:22:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:22:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:22:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-15 03:22:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-15 03:22:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-15 03:22:49,814 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:22:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:22:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:22:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:22:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:22:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:22:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:22:49,815 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:22:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:22:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:22:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:22:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:22:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:22:49,816 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:22:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:22:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:22:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:22:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:22:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:22:49,817 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:22:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:22:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:22:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:22:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-10-15 03:22:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:22:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:22:49,818 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:22:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:22:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:22:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:22:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:22:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:22:49,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:22:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:22:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:22:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:22:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:22:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:22:49,820 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:22:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:22:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:22:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:22:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:22:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:22:49,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:22:51,509 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:22:51,510 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:22:51,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:51 BoogieIcfgContainer [2019-10-15 03:22:51,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:22:51,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:22:51,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:22:51,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:22:51,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:22:48" (1/3) ... [2019-10-15 03:22:51,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9b2225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:51, skipping insertion in model container [2019-10-15 03:22:51,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:22:49" (2/3) ... [2019-10-15 03:22:51,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9b2225 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:22:51, skipping insertion in model container [2019-10-15 03:22:51,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:22:51" (3/3) ... [2019-10-15 03:22:51,521 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product41.cil.c [2019-10-15 03:22:51,532 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:22:51,542 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:22:51,555 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:22:51,584 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:22:51,584 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:22:51,584 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:22:51,584 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:22:51,585 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:22:51,585 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:22:51,585 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:22:51,585 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:22:51,610 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2019-10-15 03:22:51,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-15 03:22:51,621 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:51,622 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:22:51,624 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:51,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:51,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1969296123, now seen corresponding path program 1 times [2019-10-15 03:22:51,642 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:51,643 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310791723] [2019-10-15 03:22:51,643 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:51,644 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:51,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:51,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:52,005 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310791723] [2019-10-15 03:22:52,006 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:52,007 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:22:52,007 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004044733] [2019-10-15 03:22:52,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:22:52,012 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:52,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:22:52,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:22:52,029 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 2 states. [2019-10-15 03:22:52,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:52,080 INFO L93 Difference]: Finished difference Result 214 states and 255 transitions. [2019-10-15 03:22:52,080 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:22:52,082 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-15 03:22:52,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:52,102 INFO L225 Difference]: With dead ends: 214 [2019-10-15 03:22:52,103 INFO L226 Difference]: Without dead ends: 109 [2019-10-15 03:22:52,116 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:22:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-15 03:22:52,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2019-10-15 03:22:52,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2019-10-15 03:22:52,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 123 transitions. [2019-10-15 03:22:52,189 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 123 transitions. Word has length 52 [2019-10-15 03:22:52,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:52,190 INFO L462 AbstractCegarLoop]: Abstraction has 109 states and 123 transitions. [2019-10-15 03:22:52,190 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:22:52,190 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 123 transitions. [2019-10-15 03:22:52,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-15 03:22:52,194 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:52,195 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 03:22:52,195 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:52,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:52,196 INFO L82 PathProgramCache]: Analyzing trace with hash -377744323, now seen corresponding path program 1 times [2019-10-15 03:22:52,196 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:52,196 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975516451] [2019-10-15 03:22:52,197 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:52,197 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:52,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:52,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:52,393 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975516451] [2019-10-15 03:22:52,394 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:52,394 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:22:52,394 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14844768] [2019-10-15 03:22:52,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:22:52,396 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:52,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:22:52,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:52,397 INFO L87 Difference]: Start difference. First operand 109 states and 123 transitions. Second operand 3 states. [2019-10-15 03:22:52,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:52,419 INFO L93 Difference]: Finished difference Result 172 states and 194 transitions. [2019-10-15 03:22:52,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:22:52,420 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-15 03:22:52,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:52,422 INFO L225 Difference]: With dead ends: 172 [2019-10-15 03:22:52,422 INFO L226 Difference]: Without dead ends: 101 [2019-10-15 03:22:52,424 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:22:52,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-10-15 03:22:52,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-10-15 03:22:52,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-10-15 03:22:52,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 112 transitions. [2019-10-15 03:22:52,439 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 112 transitions. Word has length 53 [2019-10-15 03:22:52,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:52,439 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 112 transitions. [2019-10-15 03:22:52,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:22:52,440 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 112 transitions. [2019-10-15 03:22:52,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-15 03:22:52,442 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:52,442 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:22:52,443 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:52,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:52,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1271642857, now seen corresponding path program 1 times [2019-10-15 03:22:52,443 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:52,444 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411155003] [2019-10-15 03:22:52,444 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:52,444 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:52,444 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:52,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:52,623 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411155003] [2019-10-15 03:22:52,623 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:52,623 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:22:52,623 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203720598] [2019-10-15 03:22:52,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:52,624 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:52,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:52,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:52,625 INFO L87 Difference]: Start difference. First operand 101 states and 112 transitions. Second operand 7 states. [2019-10-15 03:22:52,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:52,979 INFO L93 Difference]: Finished difference Result 177 states and 200 transitions. [2019-10-15 03:22:52,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:22:52,981 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 55 [2019-10-15 03:22:52,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:52,986 INFO L225 Difference]: With dead ends: 177 [2019-10-15 03:22:52,986 INFO L226 Difference]: Without dead ends: 101 [2019-10-15 03:22:52,988 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 03:22:52,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2019-10-15 03:22:53,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-10-15 03:22:53,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-10-15 03:22:53,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 111 transitions. [2019-10-15 03:22:53,010 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 111 transitions. Word has length 55 [2019-10-15 03:22:53,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:53,014 INFO L462 AbstractCegarLoop]: Abstraction has 101 states and 111 transitions. [2019-10-15 03:22:53,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:53,017 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 111 transitions. [2019-10-15 03:22:53,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-10-15 03:22:53,021 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:53,022 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] [2019-10-15 03:22:53,022 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:53,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:53,024 INFO L82 PathProgramCache]: Analyzing trace with hash -935672368, now seen corresponding path program 1 times [2019-10-15 03:22:53,025 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:53,025 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842830243] [2019-10-15 03:22:53,025 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:53,025 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:53,025 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:53,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:53,118 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:53,118 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842830243] [2019-10-15 03:22:53,119 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:53,119 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-15 03:22:53,119 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578579377] [2019-10-15 03:22:53,120 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-15 03:22:53,120 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:53,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-15 03:22:53,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:22:53,121 INFO L87 Difference]: Start difference. First operand 101 states and 111 transitions. Second operand 5 states. [2019-10-15 03:22:53,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:53,628 INFO L93 Difference]: Finished difference Result 256 states and 297 transitions. [2019-10-15 03:22:53,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 03:22:53,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 63 [2019-10-15 03:22:53,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:53,640 INFO L225 Difference]: With dead ends: 256 [2019-10-15 03:22:53,640 INFO L226 Difference]: Without dead ends: 180 [2019-10-15 03:22:53,641 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:53,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2019-10-15 03:22:53,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 165. [2019-10-15 03:22:53,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2019-10-15 03:22:53,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 184 transitions. [2019-10-15 03:22:53,676 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 184 transitions. Word has length 63 [2019-10-15 03:22:53,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:53,676 INFO L462 AbstractCegarLoop]: Abstraction has 165 states and 184 transitions. [2019-10-15 03:22:53,677 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-15 03:22:53,677 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 184 transitions. [2019-10-15 03:22:53,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-10-15 03:22:53,679 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:53,679 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 03:22:53,679 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:53,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:53,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1110657955, now seen corresponding path program 1 times [2019-10-15 03:22:53,680 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:53,680 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396734619] [2019-10-15 03:22:53,681 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:53,681 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:53,681 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:53,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:53,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-15 03:22:53,793 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396734619] [2019-10-15 03:22:53,793 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:53,794 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:22:53,794 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701561883] [2019-10-15 03:22:53,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:22:53,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:53,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:22:53,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:22:53,795 INFO L87 Difference]: Start difference. First operand 165 states and 184 transitions. Second operand 7 states. [2019-10-15 03:22:54,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:54,356 INFO L93 Difference]: Finished difference Result 319 states and 366 transitions. [2019-10-15 03:22:54,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:22:54,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2019-10-15 03:22:54,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:54,359 INFO L225 Difference]: With dead ends: 319 [2019-10-15 03:22:54,359 INFO L226 Difference]: Without dead ends: 179 [2019-10-15 03:22:54,360 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-15 03:22:54,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2019-10-15 03:22:54,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 164. [2019-10-15 03:22:54,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-10-15 03:22:54,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 181 transitions. [2019-10-15 03:22:54,395 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 181 transitions. Word has length 72 [2019-10-15 03:22:54,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:54,396 INFO L462 AbstractCegarLoop]: Abstraction has 164 states and 181 transitions. [2019-10-15 03:22:54,396 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:22:54,396 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 181 transitions. [2019-10-15 03:22:54,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-10-15 03:22:54,398 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:54,398 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 03:22:54,398 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:54,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:54,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1250411196, now seen corresponding path program 1 times [2019-10-15 03:22:54,399 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:54,399 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445972759] [2019-10-15 03:22:54,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:54,400 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:54,400 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:54,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:54,685 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:54,685 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445972759] [2019-10-15 03:22:54,686 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:54,686 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-15 03:22:54,686 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264858810] [2019-10-15 03:22:54,687 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-15 03:22:54,687 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:54,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-15 03:22:54,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-10-15 03:22:54,688 INFO L87 Difference]: Start difference. First operand 164 states and 181 transitions. Second operand 12 states. [2019-10-15 03:22:55,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:55,641 INFO L93 Difference]: Finished difference Result 430 states and 491 transitions. [2019-10-15 03:22:55,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-15 03:22:55,644 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 85 [2019-10-15 03:22:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:55,648 INFO L225 Difference]: With dead ends: 430 [2019-10-15 03:22:55,648 INFO L226 Difference]: Without dead ends: 291 [2019-10-15 03:22:55,649 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2019-10-15 03:22:55,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2019-10-15 03:22:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 282. [2019-10-15 03:22:55,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2019-10-15 03:22:55,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 319 transitions. [2019-10-15 03:22:55,681 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 319 transitions. Word has length 85 [2019-10-15 03:22:55,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:55,682 INFO L462 AbstractCegarLoop]: Abstraction has 282 states and 319 transitions. [2019-10-15 03:22:55,682 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-15 03:22:55,682 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 319 transitions. [2019-10-15 03:22:55,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-15 03:22:55,684 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:55,685 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] [2019-10-15 03:22:55,685 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:55,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:55,685 INFO L82 PathProgramCache]: Analyzing trace with hash 45315582, now seen corresponding path program 1 times [2019-10-15 03:22:55,686 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:55,686 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872951576] [2019-10-15 03:22:55,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:55,686 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:55,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:55,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:55,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-15 03:22:55,911 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872951576] [2019-10-15 03:22:55,911 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:22:55,912 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-15 03:22:55,912 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816327842] [2019-10-15 03:22:55,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-15 03:22:55,913 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:22:55,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-15 03:22:55,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:22:55,914 INFO L87 Difference]: Start difference. First operand 282 states and 319 transitions. Second operand 9 states. [2019-10-15 03:22:56,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:22:56,697 INFO L93 Difference]: Finished difference Result 872 states and 1015 transitions. [2019-10-15 03:22:56,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:22:56,698 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2019-10-15 03:22:56,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:22:56,703 INFO L225 Difference]: With dead ends: 872 [2019-10-15 03:22:56,704 INFO L226 Difference]: Without dead ends: 667 [2019-10-15 03:22:56,705 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2019-10-15 03:22:56,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2019-10-15 03:22:56,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 575. [2019-10-15 03:22:56,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2019-10-15 03:22:56,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 656 transitions. [2019-10-15 03:22:56,753 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 656 transitions. Word has length 88 [2019-10-15 03:22:56,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:22:56,754 INFO L462 AbstractCegarLoop]: Abstraction has 575 states and 656 transitions. [2019-10-15 03:22:56,754 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-15 03:22:56,754 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 656 transitions. [2019-10-15 03:22:56,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-10-15 03:22:56,756 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:22:56,757 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:22:56,757 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:22:56,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:22:56,757 INFO L82 PathProgramCache]: Analyzing trace with hash -120042701, now seen corresponding path program 1 times [2019-10-15 03:22:56,758 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:22:56,758 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602121142] [2019-10-15 03:22:56,758 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:56,758 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:22:56,758 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:22:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:56,915 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 03:22:56,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602121142] [2019-10-15 03:22:56,915 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128514790] [2019-10-15 03:22:56,915 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:22:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:22:57,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-15 03:22:57,154 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:22:57,318 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:22:57,318 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:22:57,691 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 03:22:57,692 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2036316062] [2019-10-15 03:22:57,730 INFO L162 IcfgInterpreter]: Started Sifa with 97 locations of interest [2019-10-15 03:22:57,730 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:22:57,738 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:22:57,747 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:22:57,748 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:23:07,194 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-15 03:23:09,025 WARN L191 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:23:09,172 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:09,317 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:09,497 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-15 03:23:09,778 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:10,036 WARN L191 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:10,293 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:10,521 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:10,925 WARN L191 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-15 03:23:11,060 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:11,190 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:11,373 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:11,515 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:11,633 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:23:11,643 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-15 03:23:11,964 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-15 03:23:11,965 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 546 for LOIs [2019-10-15 03:23:12,080 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,187 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,314 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:12,467 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,570 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,697 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:12,820 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:12,929 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,100 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:13,312 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 546 [2019-10-15 03:23:13,433 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,563 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:13,706 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:13,929 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:14,035 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:14,138 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:14,292 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:14,499 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:14,618 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:14,955 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:15,162 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:15,280 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:15,714 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:16,028 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:16,341 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:16,450 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 546 [2019-10-15 03:23:16,667 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:16,801 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:16,910 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:17,053 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:17,316 WARN L191 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:17,426 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:17,549 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:17,657 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:17,766 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:17,884 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:18,046 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:18,165 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:18,289 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:18,621 WARN L191 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:18,733 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:18,855 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,063 WARN L191 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:23:19,188 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:19,311 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,425 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:19,536 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:19,663 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,780 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:19,890 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:20,017 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:20,157 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:20,268 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:20,400 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:20,613 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:23:20,732 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:20,879 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:20,999 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:21,123 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:21,245 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:21,460 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:21,572 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:21,692 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:21,892 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:22,004 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,125 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,235 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,347 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,464 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:22,687 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:22,799 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:22,938 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,143 WARN L191 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:23,257 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,386 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,499 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,610 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,731 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:23,942 WARN L191 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 571 DAG size of output: 564 [2019-10-15 03:23:24,053 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,178 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:24,378 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 566 [2019-10-15 03:23:24,492 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:24,622 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-15 03:23:24,835 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:24,955 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:25,075 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:25,284 WARN L191 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:25,393 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:25,517 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:25,626 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:25,735 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:25,854 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:26,073 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:26,184 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:26,309 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:26,510 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:23:26,617 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:26,739 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:26,846 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:26,963 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:27,080 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:23:27,290 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:23:27,401 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:27,532 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,737 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-15 03:23:27,852 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:27,979 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:28,172 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:23:28,277 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:28,395 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:28,579 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 562 [2019-10-15 03:23:28,684 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:23:28,811 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-15 03:23:29,010 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 564 [2019-10-15 03:23:29,117 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 564