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_spec4_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:21:34,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:21:34,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:21:34,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:21:34,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:21:34,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:21:34,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:21:34,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:21:34,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:21:34,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:21:34,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:21:34,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:21:34,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:21:34,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:21:34,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:21:34,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:21:34,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:21:34,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:21:34,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:21:34,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:21:34,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:21:34,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:21:34,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:21:34,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:21:34,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-15 03:21:34,740 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-15 03:21:34,741 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-15 03:21:34,743 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-15 03:21:34,744 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-15 03:21:34,745 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-15 03:21:34,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-15 03:21:34,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-15 03:21:34,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-15 03:21:34,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-15 03:21:34,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-15 03:21:34,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-15 03:21:34,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-15 03:21:34,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-15 03:21:34,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:21:34,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:21:34,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:21:34,762 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 03:21:34,776 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:21:34,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:21:34,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:21:34,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:21:34,778 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:21:34,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:21:34,779 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:21:34,779 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:21:34,779 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:21:34,779 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:21:34,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:21:34,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:21:34,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:21:34,780 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:21:34,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:21:34,781 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:21:34,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:21:34,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:21:34,781 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:21:34,781 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:21:34,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:21:34,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:21:34,782 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:21:34,782 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:21:34,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:21:34,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:21:34,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:21:34,783 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:21:34,783 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 03:21:35,090 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:21:35,103 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:21:35,106 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:21:35,108 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:21:35,108 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:21:35,109 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2019-10-15 03:21:35,178 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad4a22930/f62a67a36e164838a2efe8b54fbe65e7/FLAG3b47ea089 [2019-10-15 03:21:35,667 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:21:35,668 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2019-10-15 03:21:35,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad4a22930/f62a67a36e164838a2efe8b54fbe65e7/FLAG3b47ea089 [2019-10-15 03:21:35,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad4a22930/f62a67a36e164838a2efe8b54fbe65e7 [2019-10-15 03:21:35,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:21:35,960 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:21:35,961 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:21:35,961 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:21:35,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:21:35,965 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:21:35" (1/1) ... [2019-10-15 03:21:35,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@792da0b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:35, skipping insertion in model container [2019-10-15 03:21:35,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:21:35" (1/1) ... [2019-10-15 03:21:35,976 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:21:36,028 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:21:36,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:21:36,502 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:21:36,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:21:36,659 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:21:36,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36 WrapperNode [2019-10-15 03:21:36,660 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:21:36,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:21:36,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:21:36,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:21:36,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,694 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (1/1) ... [2019-10-15 03:21:36,770 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:21:36,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:21:36,771 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:21:36,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:21:36,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (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 03:21:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:21:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:21:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-15 03:21:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-15 03:21:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-15 03:21:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-15 03:21:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-15 03:21:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:21:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-10-15 03:21:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-15 03:21:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-15 03:21:36,852 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-15 03:21:36,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-15 03:21:36,853 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-15 03:21:36,853 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-15 03:21:36,853 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-15 03:21:36,856 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-15 03:21:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-15 03:21:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-15 03:21:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-15 03:21:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-15 03:21:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-15 03:21:36,857 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-15 03:21:36,858 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:21:36,858 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-15 03:21:36,858 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-15 03:21:36,858 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-15 03:21:36,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-15 03:21:36,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-15 03:21:36,859 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-15 03:21:36,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-15 03:21:36,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-15 03:21:36,860 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-15 03:21:36,860 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-15 03:21:36,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-15 03:21:36,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-15 03:21:36,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-15 03:21:36,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-15 03:21:36,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-15 03:21:36,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-15 03:21:36,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-15 03:21:36,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:21:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:21:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-15 03:21:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-15 03:21:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-15 03:21:36,862 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-15 03:21:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-15 03:21:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-15 03:21:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-15 03:21:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-15 03:21:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-15 03:21:36,863 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-15 03:21:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-15 03:21:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-15 03:21:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-15 03:21:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:21:36,864 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-15 03:21:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-15 03:21:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-15 03:21:36,865 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-10-15 03:21:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-15 03:21:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-15 03:21:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-15 03:21:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-15 03:21:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-15 03:21:36,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:21:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-15 03:21:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-15 03:21:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-15 03:21:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-15 03:21:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-15 03:21:36,867 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-15 03:21:36,868 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-15 03:21:36,868 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-15 03:21:36,869 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-15 03:21:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-15 03:21:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-15 03:21:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-15 03:21:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-15 03:21:36,870 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-15 03:21:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-15 03:21:36,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-15 03:21:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:21:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-15 03:21:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-15 03:21:36,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:21:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-15 03:21:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-15 03:21:36,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:21:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-15 03:21:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-15 03:21:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-15 03:21:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:21:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-15 03:21:36,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:21:38,698 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:21:38,699 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-15 03:21:38,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:21:38 BoogieIcfgContainer [2019-10-15 03:21:38,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:21:38,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:21:38,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:21:38,707 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:21:38,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:21:35" (1/3) ... [2019-10-15 03:21:38,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5250c03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:21:38, skipping insertion in model container [2019-10-15 03:21:38,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:21:36" (2/3) ... [2019-10-15 03:21:38,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5250c03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:21:38, skipping insertion in model container [2019-10-15 03:21:38,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:21:38" (3/3) ... [2019-10-15 03:21:38,712 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2019-10-15 03:21:38,722 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:21:38,731 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:21:38,744 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:21:38,782 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:21:38,782 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:21:38,783 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:21:38,783 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:21:38,783 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:21:38,783 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:21:38,784 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:21:38,784 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:21:38,814 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2019-10-15 03:21:38,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-10-15 03:21:38,828 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:38,829 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:21:38,834 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:38,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:38,842 INFO L82 PathProgramCache]: Analyzing trace with hash 659053163, now seen corresponding path program 1 times [2019-10-15 03:21:38,854 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:38,855 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790243941] [2019-10-15 03:21:38,855 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:38,855 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:38,855 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:39,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790243941] [2019-10-15 03:21:39,238 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:39,239 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 03:21:39,241 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992052977] [2019-10-15 03:21:39,250 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:21:39,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:39,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:21:39,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:21:39,274 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 2 states. [2019-10-15 03:21:39,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:39,361 INFO L93 Difference]: Finished difference Result 225 states and 274 transitions. [2019-10-15 03:21:39,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:21:39,363 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 42 [2019-10-15 03:21:39,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:39,381 INFO L225 Difference]: With dead ends: 225 [2019-10-15 03:21:39,381 INFO L226 Difference]: Without dead ends: 113 [2019-10-15 03:21:39,391 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 03:21:39,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-10-15 03:21:39,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-10-15 03:21:39,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-10-15 03:21:39,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2019-10-15 03:21:39,476 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 42 [2019-10-15 03:21:39,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:39,477 INFO L462 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2019-10-15 03:21:39,477 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:21:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2019-10-15 03:21:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-10-15 03:21:39,480 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:39,480 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:21:39,481 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash -690893461, now seen corresponding path program 1 times [2019-10-15 03:21:39,482 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:39,482 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658734687] [2019-10-15 03:21:39,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:39,482 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:39,482 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:39,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:39,624 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658734687] [2019-10-15 03:21:39,624 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:39,624 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:21:39,624 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512115390] [2019-10-15 03:21:39,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:21:39,627 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:39,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:21:39,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:21:39,628 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand 3 states. [2019-10-15 03:21:39,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:39,667 INFO L93 Difference]: Finished difference Result 176 states and 202 transitions. [2019-10-15 03:21:39,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:21:39,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-10-15 03:21:39,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:39,670 INFO L225 Difference]: With dead ends: 176 [2019-10-15 03:21:39,670 INFO L226 Difference]: Without dead ends: 105 [2019-10-15 03:21:39,672 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 03:21:39,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2019-10-15 03:21:39,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2019-10-15 03:21:39,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-10-15 03:21:39,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 120 transitions. [2019-10-15 03:21:39,693 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 120 transitions. Word has length 43 [2019-10-15 03:21:39,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:39,694 INFO L462 AbstractCegarLoop]: Abstraction has 105 states and 120 transitions. [2019-10-15 03:21:39,694 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:21:39,695 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 120 transitions. [2019-10-15 03:21:39,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-15 03:21:39,704 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:39,705 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:21:39,705 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:39,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:39,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1392605010, now seen corresponding path program 1 times [2019-10-15 03:21:39,706 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:39,707 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888911363] [2019-10-15 03:21:39,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:39,708 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:39,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:39,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:39,983 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888911363] [2019-10-15 03:21:39,983 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:39,983 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-15 03:21:39,984 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708322160] [2019-10-15 03:21:39,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:21:39,985 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:39,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:21:39,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-15 03:21:39,986 INFO L87 Difference]: Start difference. First operand 105 states and 120 transitions. Second operand 7 states. [2019-10-15 03:21:40,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:40,421 INFO L93 Difference]: Finished difference Result 315 states and 373 transitions. [2019-10-15 03:21:40,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:21:40,421 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 46 [2019-10-15 03:21:40,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:40,426 INFO L225 Difference]: With dead ends: 315 [2019-10-15 03:21:40,426 INFO L226 Difference]: Without dead ends: 232 [2019-10-15 03:21:40,427 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:21:40,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-10-15 03:21:40,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 224. [2019-10-15 03:21:40,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2019-10-15 03:21:40,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 265 transitions. [2019-10-15 03:21:40,492 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 265 transitions. Word has length 46 [2019-10-15 03:21:40,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:40,493 INFO L462 AbstractCegarLoop]: Abstraction has 224 states and 265 transitions. [2019-10-15 03:21:40,493 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:21:40,493 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 265 transitions. [2019-10-15 03:21:40,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-10-15 03:21:40,498 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:40,498 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:21:40,499 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:40,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:40,499 INFO L82 PathProgramCache]: Analyzing trace with hash -444831069, now seen corresponding path program 1 times [2019-10-15 03:21:40,499 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:40,500 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031109814] [2019-10-15 03:21:40,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:40,500 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:40,500 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:40,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:40,678 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031109814] [2019-10-15 03:21:40,679 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:40,679 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-15 03:21:40,679 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070244719] [2019-10-15 03:21:40,679 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:21:40,680 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:40,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:21:40,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-15 03:21:40,680 INFO L87 Difference]: Start difference. First operand 224 states and 265 transitions. Second operand 10 states. [2019-10-15 03:21:41,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:41,327 INFO L93 Difference]: Finished difference Result 791 states and 982 transitions. [2019-10-15 03:21:41,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:21:41,331 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 51 [2019-10-15 03:21:41,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:41,343 INFO L225 Difference]: With dead ends: 791 [2019-10-15 03:21:41,343 INFO L226 Difference]: Without dead ends: 589 [2019-10-15 03:21:41,349 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-10-15 03:21:41,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2019-10-15 03:21:41,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 565. [2019-10-15 03:21:41,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 565 states. [2019-10-15 03:21:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 686 transitions. [2019-10-15 03:21:41,424 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 686 transitions. Word has length 51 [2019-10-15 03:21:41,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:41,425 INFO L462 AbstractCegarLoop]: Abstraction has 565 states and 686 transitions. [2019-10-15 03:21:41,425 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:21:41,425 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 686 transitions. [2019-10-15 03:21:41,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-10-15 03:21:41,428 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:41,428 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:21:41,429 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:41,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:41,429 INFO L82 PathProgramCache]: Analyzing trace with hash -197069387, now seen corresponding path program 1 times [2019-10-15 03:21:41,429 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:41,429 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195862595] [2019-10-15 03:21:41,430 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:41,430 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:41,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:41,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:41,498 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195862595] [2019-10-15 03:21:41,498 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:41,498 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:21:41,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452594883] [2019-10-15 03:21:41,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:21:41,499 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:41,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:21:41,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:21:41,500 INFO L87 Difference]: Start difference. First operand 565 states and 686 transitions. Second operand 4 states. [2019-10-15 03:21:41,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:41,818 INFO L93 Difference]: Finished difference Result 1404 states and 1872 transitions. [2019-10-15 03:21:41,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-15 03:21:41,819 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2019-10-15 03:21:41,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:41,825 INFO L225 Difference]: With dead ends: 1404 [2019-10-15 03:21:41,825 INFO L226 Difference]: Without dead ends: 861 [2019-10-15 03:21:41,828 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-15 03:21:41,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 861 states. [2019-10-15 03:21:41,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 861 to 731. [2019-10-15 03:21:41,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2019-10-15 03:21:41,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 878 transitions. [2019-10-15 03:21:41,890 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 878 transitions. Word has length 54 [2019-10-15 03:21:41,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:41,891 INFO L462 AbstractCegarLoop]: Abstraction has 731 states and 878 transitions. [2019-10-15 03:21:41,891 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:21:41,891 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 878 transitions. [2019-10-15 03:21:41,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-10-15 03:21:41,893 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:41,894 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:21:41,894 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:41,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:41,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1222446110, now seen corresponding path program 1 times [2019-10-15 03:21:41,895 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:41,895 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342977303] [2019-10-15 03:21:41,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:41,895 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:41,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:42,014 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-15 03:21:42,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342977303] [2019-10-15 03:21:42,015 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398408432] [2019-10-15 03:21:42,015 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 03:21:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:42,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 11 conjunts are in the unsatisfiable core [2019-10-15 03:21:42,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:21:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-10-15 03:21:42,275 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:21:42,403 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-10-15 03:21:42,403 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:21:42,403 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 9 [2019-10-15 03:21:42,404 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273802600] [2019-10-15 03:21:42,405 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-15 03:21:42,406 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:42,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-15 03:21:42,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-10-15 03:21:42,406 INFO L87 Difference]: Start difference. First operand 731 states and 878 transitions. Second operand 7 states. [2019-10-15 03:21:42,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:42,657 INFO L93 Difference]: Finished difference Result 744 states and 894 transitions. [2019-10-15 03:21:42,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-15 03:21:42,660 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-10-15 03:21:42,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:42,665 INFO L225 Difference]: With dead ends: 744 [2019-10-15 03:21:42,666 INFO L226 Difference]: Without dead ends: 741 [2019-10-15 03:21:42,667 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-10-15 03:21:42,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2019-10-15 03:21:42,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 731. [2019-10-15 03:21:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 731 states. [2019-10-15 03:21:42,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 731 states to 731 states and 875 transitions. [2019-10-15 03:21:42,722 INFO L78 Accepts]: Start accepts. Automaton has 731 states and 875 transitions. Word has length 78 [2019-10-15 03:21:42,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:42,725 INFO L462 AbstractCegarLoop]: Abstraction has 731 states and 875 transitions. [2019-10-15 03:21:42,726 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-15 03:21:42,726 INFO L276 IsEmpty]: Start isEmpty. Operand 731 states and 875 transitions. [2019-10-15 03:21:42,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-10-15 03:21:42,730 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:42,730 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 03:21:42,942 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:21:42,943 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:42,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:42,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1068146620, now seen corresponding path program 1 times [2019-10-15 03:21:42,944 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:42,944 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858251047] [2019-10-15 03:21:42,945 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:42,945 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:42,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:42,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:43,052 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 03:21:43,053 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858251047] [2019-10-15 03:21:43,053 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:43,053 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 03:21:43,053 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860439621] [2019-10-15 03:21:43,054 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 03:21:43,054 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:43,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 03:21:43,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:21:43,055 INFO L87 Difference]: Start difference. First operand 731 states and 875 transitions. Second operand 4 states. [2019-10-15 03:21:43,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:43,260 INFO L93 Difference]: Finished difference Result 857 states and 1028 transitions. [2019-10-15 03:21:43,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 03:21:43,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2019-10-15 03:21:43,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:43,264 INFO L225 Difference]: With dead ends: 857 [2019-10-15 03:21:43,264 INFO L226 Difference]: Without dead ends: 318 [2019-10-15 03:21:43,266 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-15 03:21:43,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2019-10-15 03:21:43,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2019-10-15 03:21:43,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2019-10-15 03:21:43,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 367 transitions. [2019-10-15 03:21:43,286 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 367 transitions. Word has length 122 [2019-10-15 03:21:43,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:43,286 INFO L462 AbstractCegarLoop]: Abstraction has 318 states and 367 transitions. [2019-10-15 03:21:43,286 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 03:21:43,287 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 367 transitions. [2019-10-15 03:21:43,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-10-15 03:21:43,289 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:43,289 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-15 03:21:43,289 INFO L410 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:43,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:43,290 INFO L82 PathProgramCache]: Analyzing trace with hash -2092836145, now seen corresponding path program 1 times [2019-10-15 03:21:43,290 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:43,290 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373730913] [2019-10-15 03:21:43,290 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:43,290 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:43,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:43,558 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-10-15 03:21:43,559 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373730913] [2019-10-15 03:21:43,559 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:21:43,559 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-10-15 03:21:43,560 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804417632] [2019-10-15 03:21:43,561 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:21:43,561 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:43,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:21:43,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-10-15 03:21:43,562 INFO L87 Difference]: Start difference. First operand 318 states and 367 transitions. Second operand 14 states. [2019-10-15 03:21:43,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:43,969 INFO L93 Difference]: Finished difference Result 587 states and 705 transitions. [2019-10-15 03:21:43,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-15 03:21:43,969 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 117 [2019-10-15 03:21:43,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:43,973 INFO L225 Difference]: With dead ends: 587 [2019-10-15 03:21:43,973 INFO L226 Difference]: Without dead ends: 453 [2019-10-15 03:21:43,975 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=296, Unknown=0, NotChecked=0, Total=380 [2019-10-15 03:21:43,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2019-10-15 03:21:44,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 386. [2019-10-15 03:21:44,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2019-10-15 03:21:44,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 450 transitions. [2019-10-15 03:21:44,025 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 450 transitions. Word has length 117 [2019-10-15 03:21:44,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:44,026 INFO L462 AbstractCegarLoop]: Abstraction has 386 states and 450 transitions. [2019-10-15 03:21:44,026 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:21:44,026 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 450 transitions. [2019-10-15 03:21:44,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-10-15 03:21:44,029 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:44,029 INFO L380 BasicCegarLoop]: trace histogram [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] [2019-10-15 03:21:44,029 INFO L410 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:44,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:44,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1041383297, now seen corresponding path program 1 times [2019-10-15 03:21:44,030 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:44,031 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18699940] [2019-10-15 03:21:44,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:44,031 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:44,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:44,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:44,330 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:21:44,331 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18699940] [2019-10-15 03:21:44,331 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222554598] [2019-10-15 03:21:44,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:21:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:44,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 33 conjunts are in the unsatisfiable core [2019-10-15 03:21:44,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:21:44,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:44,771 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:44,847 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:21:44,848 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:21:45,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:46,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:46,160 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:46,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:46,476 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:21:46,476 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-10-15 03:21:46,477 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14, 13] total 35 [2019-10-15 03:21:46,477 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425222370] [2019-10-15 03:21:46,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-15 03:21:46,478 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:21:46,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-15 03:21:46,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1032, Unknown=0, NotChecked=0, Total=1190 [2019-10-15 03:21:46,479 INFO L87 Difference]: Start difference. First operand 386 states and 450 transitions. Second operand 14 states. [2019-10-15 03:21:48,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:21:48,580 INFO L93 Difference]: Finished difference Result 802 states and 960 transitions. [2019-10-15 03:21:48,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-10-15 03:21:48,580 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 114 [2019-10-15 03:21:48,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:21:48,582 INFO L225 Difference]: With dead ends: 802 [2019-10-15 03:21:48,582 INFO L226 Difference]: Without dead ends: 438 [2019-10-15 03:21:48,584 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 206 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 856 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=388, Invalid=2474, Unknown=0, NotChecked=0, Total=2862 [2019-10-15 03:21:48,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2019-10-15 03:21:48,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 408. [2019-10-15 03:21:48,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2019-10-15 03:21:48,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 467 transitions. [2019-10-15 03:21:48,607 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 467 transitions. Word has length 114 [2019-10-15 03:21:48,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:21:48,607 INFO L462 AbstractCegarLoop]: Abstraction has 408 states and 467 transitions. [2019-10-15 03:21:48,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-15 03:21:48,608 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 467 transitions. [2019-10-15 03:21:48,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2019-10-15 03:21:48,610 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:21:48,610 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:21:48,819 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:21:48,819 INFO L410 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:21:48,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:21:48,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1231208487, now seen corresponding path program 1 times [2019-10-15 03:21:48,820 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:21:48,821 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704760571] [2019-10-15 03:21:48,821 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:48,821 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:21:48,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:21:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:49,047 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-10-15 03:21:49,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704760571] [2019-10-15 03:21:49,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473798880] [2019-10-15 03:21:49,048 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:21:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:21:49,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 56 conjunts are in the unsatisfiable core [2019-10-15 03:21:49,260 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:21:49,408 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-15 03:21:49,408 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:21:49,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:49,752 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:49,864 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:49,865 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:50,149 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:50,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:21:50,534 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-10-15 03:21:50,534 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2027261646] [2019-10-15 03:21:50,562 INFO L162 IcfgInterpreter]: Started Sifa with 92 locations of interest [2019-10-15 03:21:50,562 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:21:50,567 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:21:50,574 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:21:50,574 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:22:00,786 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 464 [2019-10-15 03:22:02,319 WARN L191 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-15 03:22:02,454 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:02,592 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:02,784 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2019-10-15 03:22:03,008 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:03,185 WARN L191 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:03,362 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:03,582 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:03,894 WARN L191 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 540 [2019-10-15 03:22:04,078 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:04,275 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:04,392 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:04,528 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:04,643 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 540 [2019-10-15 03:22:04,651 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 184 for LOIs [2019-10-15 03:22:04,870 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 509 [2019-10-15 03:22:04,871 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 544 for LOIs [2019-10-15 03:22:04,980 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:05,084 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:05,203 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:05,434 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:05,564 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:05,721 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:05,934 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:06,160 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 544 [2019-10-15 03:22:06,377 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:06,726 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,036 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,385 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,691 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:07,996 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,108 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:08,318 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,626 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:08,852 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-15 03:22:08,966 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,274 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,447 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,552 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,670 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:09,881 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:09,987 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,107 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,213 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,318 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,431 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:10,583 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:10,710 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:10,829 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:10,941 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:11,048 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:11,306 WARN L191 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:11,546 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 562 DAG size of output: 560 [2019-10-15 03:22:11,663 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:11,780 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:11,892 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:11,998 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 558 [2019-10-15 03:22:12,123 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:12,230 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:12,337 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:12,505 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:22:12,649 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:12,756 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:12,877 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:22:13,077 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 560 [2019-10-15 03:22:13,184 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:13,311 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:22:13,417 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:13,535 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 560 [2019-10-15 03:22:13,652 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 562 [2019-10-15 03:22:13,866 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:13,979 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:14,102 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:14,547 WARN L191 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 556 [2019-10-15 03:22:14,814 WARN L191 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,099 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 556 [2019-10-15 03:22:15,219 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 556