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_spec2_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:15:32,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:15:32,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:15:32,697 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:15:32,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:15:32,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:15:32,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:15:32,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:15:32,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:15:32,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:15:32,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:15:32,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:15:32,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:15:32,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:15:32,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:15:32,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:15:32,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:15:32,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:15:32,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:15:32,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:15:32,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:15:32,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:15:32,741 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:15:32,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:15:32,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 23:15:32,743 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 23:15:32,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 23:15:32,744 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 23:15:32,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 23:15:32,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 23:15:32,746 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 23:15:32,747 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 23:15:32,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 23:15:32,750 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 23:15:32,751 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 23:15:32,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 23:15:32,752 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 23:15:32,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 23:15:32,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:15:32,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:15:32,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:15:32,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-13 23:15:32,772 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:15:32,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:15:32,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:15:32,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:15:32,773 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:15:32,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:15:32,774 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:15:32,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:15:32,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:15:32,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:15:32,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:15:32,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:15:32,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:15:32,775 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:15:32,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:15:32,775 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:15:32,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:15:32,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:15:32,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:15:32,776 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:15:32,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:15:32,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:15:32,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:15:32,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:15:32,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:15:32,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:15:32,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:15:32,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:15:32,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-13 23:15:33,105 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:15:33,125 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:15:33,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:15:33,131 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:15:33,131 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:15:33,132 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2019-10-13 23:15:33,194 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/290d627d2/2ade1c750cfd4f86a40ed05eaba70f53/FLAG7e8f3db9c [2019-10-13 23:15:33,666 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:15:33,667 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product55.cil.c [2019-10-13 23:15:33,692 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/290d627d2/2ade1c750cfd4f86a40ed05eaba70f53/FLAG7e8f3db9c [2019-10-13 23:15:33,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/290d627d2/2ade1c750cfd4f86a40ed05eaba70f53 [2019-10-13 23:15:33,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:15:33,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:15:33,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:15:33,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:15:33,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:15:33,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:15:33" (1/1) ... [2019-10-13 23:15:33,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@305b79ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:33, skipping insertion in model container [2019-10-13 23:15:33,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:15:33" (1/1) ... [2019-10-13 23:15:33,981 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:15:34,019 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:15:34,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:15:34,455 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:15:34,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:15:34,611 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:15:34,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:34 WrapperNode [2019-10-13 23:15:34,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:15:34,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:15:34,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:15:34,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:15:34,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:34" (1/1) ... [2019-10-13 23:15:34,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:34" (1/1) ... [2019-10-13 23:15:34,666 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:34" (1/1) ... [2019-10-13 23:15:34,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:34" (1/1) ... [2019-10-13 23:15:34,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:34" (1/1) ... [2019-10-13 23:15:34,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:34" (1/1) ... [2019-10-13 23:15:34,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:34" (1/1) ... [2019-10-13 23:15:34,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:15:34,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:15:34,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:15:34,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:15:34,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:15:34,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:15:34,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:15:34,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-13 23:15:34,839 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-13 23:15:34,839 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-13 23:15:34,839 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-13 23:15:34,839 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-13 23:15:34,839 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-13 23:15:34,840 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-13 23:15:34,840 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-13 23:15:34,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-13 23:15:34,840 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-13 23:15:34,840 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-13 23:15:34,840 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-13 23:15:34,841 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-13 23:15:34,841 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-13 23:15:34,841 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-13 23:15:34,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-13 23:15:34,841 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:15:34,842 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-13 23:15:34,842 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-13 23:15:34,842 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-13 23:15:34,842 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-13 23:15:34,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-13 23:15:34,842 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-13 23:15:34,842 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-13 23:15:34,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-13 23:15:34,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-13 23:15:34,843 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-13 23:15:34,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-13 23:15:34,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-13 23:15:34,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-13 23:15:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-13 23:15:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-13 23:15:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-13 23:15:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-10-13 23:15:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-10-13 23:15:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-13 23:15:34,844 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-13 23:15:34,845 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-13 23:15:34,845 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-13 23:15:34,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:15:34,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-13 23:15:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:15:34,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:15:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-13 23:15:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-13 23:15:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-13 23:15:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-13 23:15:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-13 23:15:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-13 23:15:34,846 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-13 23:15:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-13 23:15:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-13 23:15:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-13 23:15:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-13 23:15:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-13 23:15:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-13 23:15:34,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 23:15:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-13 23:15:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-13 23:15:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-13 23:15:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-13 23:15:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-13 23:15:34,848 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-13 23:15:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-13 23:15:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-13 23:15:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-10-13 23:15:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-13 23:15:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-13 23:15:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-13 23:15:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-13 23:15:34,849 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-13 23:15:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-13 23:15:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-13 23:15:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-13 23:15:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-13 23:15:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-13 23:15:34,850 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-13 23:15:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-13 23:15:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-13 23:15:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 23:15:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-13 23:15:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-13 23:15:34,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 23:15:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-13 23:15:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-13 23:15:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 23:15:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-13 23:15:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-13 23:15:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-13 23:15:34,852 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-13 23:15:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-10-13 23:15:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-13 23:15:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-13 23:15:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-13 23:15:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:15:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:15:34,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-13 23:15:34,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:15:36,455 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:15:36,455 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-13 23:15:36,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:15:36 BoogieIcfgContainer [2019-10-13 23:15:36,457 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:15:36,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:15:36,458 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:15:36,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:15:36,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:15:33" (1/3) ... [2019-10-13 23:15:36,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e09465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:15:36, skipping insertion in model container [2019-10-13 23:15:36,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:15:34" (2/3) ... [2019-10-13 23:15:36,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18e09465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:15:36, skipping insertion in model container [2019-10-13 23:15:36,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:15:36" (3/3) ... [2019-10-13 23:15:36,464 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2019-10-13 23:15:36,474 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:15:36,483 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:15:36,494 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:15:36,521 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:15:36,521 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:15:36,521 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:15:36,521 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:15:36,522 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:15:36,522 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:15:36,522 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:15:36,522 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:15:36,545 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states. [2019-10-13 23:15:36,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-13 23:15:36,554 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:36,555 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] [2019-10-13 23:15:36,557 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:36,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:36,564 INFO L82 PathProgramCache]: Analyzing trace with hash -1011592262, now seen corresponding path program 1 times [2019-10-13 23:15:36,573 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:36,574 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684293039] [2019-10-13 23:15:36,574 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:36,575 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:36,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:36,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:15:36,885 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684293039] [2019-10-13 23:15:36,886 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:36,887 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 23:15:36,888 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935328486] [2019-10-13 23:15:36,893 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 23:15:36,893 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:36,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 23:15:36,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:15:36,920 INFO L87 Difference]: Start difference. First operand 164 states. Second operand 2 states. [2019-10-13 23:15:36,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:36,998 INFO L93 Difference]: Finished difference Result 258 states and 319 transitions. [2019-10-13 23:15:36,998 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 23:15:36,999 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-13 23:15:37,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:37,016 INFO L225 Difference]: With dead ends: 258 [2019-10-13 23:15:37,016 INFO L226 Difference]: Without dead ends: 131 [2019-10-13 23:15:37,024 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 23:15:37,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-10-13 23:15:37,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-10-13 23:15:37,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-10-13 23:15:37,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 155 transitions. [2019-10-13 23:15:37,102 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 155 transitions. Word has length 46 [2019-10-13 23:15:37,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:37,103 INFO L462 AbstractCegarLoop]: Abstraction has 131 states and 155 transitions. [2019-10-13 23:15:37,103 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 23:15:37,104 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 155 transitions. [2019-10-13 23:15:37,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-13 23:15:37,114 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:37,114 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] [2019-10-13 23:15:37,115 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:37,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:37,116 INFO L82 PathProgramCache]: Analyzing trace with hash 751232651, now seen corresponding path program 1 times [2019-10-13 23:15:37,116 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:37,116 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761769964] [2019-10-13 23:15:37,116 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:37,117 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:37,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:37,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:15:37,321 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761769964] [2019-10-13 23:15:37,321 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:37,321 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:15:37,322 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023879159] [2019-10-13 23:15:37,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:15:37,325 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:37,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:15:37,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:15:37,325 INFO L87 Difference]: Start difference. First operand 131 states and 155 transitions. Second operand 3 states. [2019-10-13 23:15:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:37,366 INFO L93 Difference]: Finished difference Result 209 states and 247 transitions. [2019-10-13 23:15:37,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:15:37,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-13 23:15:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:37,372 INFO L225 Difference]: With dead ends: 209 [2019-10-13 23:15:37,372 INFO L226 Difference]: Without dead ends: 123 [2019-10-13 23:15:37,377 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:15:37,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2019-10-13 23:15:37,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2019-10-13 23:15:37,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-10-13 23:15:37,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 144 transitions. [2019-10-13 23:15:37,403 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 144 transitions. Word has length 47 [2019-10-13 23:15:37,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:37,403 INFO L462 AbstractCegarLoop]: Abstraction has 123 states and 144 transitions. [2019-10-13 23:15:37,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:15:37,404 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 144 transitions. [2019-10-13 23:15:37,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-10-13 23:15:37,407 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:37,408 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] [2019-10-13 23:15:37,408 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:37,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1922198881, now seen corresponding path program 1 times [2019-10-13 23:15:37,409 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:37,409 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069131351] [2019-10-13 23:15:37,409 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:37,409 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:37,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:37,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:37,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:15:37,617 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069131351] [2019-10-13 23:15:37,617 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:37,617 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:15:37,617 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220403478] [2019-10-13 23:15:37,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:15:37,618 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:37,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:15:37,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:15:37,619 INFO L87 Difference]: Start difference. First operand 123 states and 144 transitions. Second operand 7 states. [2019-10-13 23:15:38,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:38,087 INFO L93 Difference]: Finished difference Result 364 states and 441 transitions. [2019-10-13 23:15:38,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:15:38,088 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2019-10-13 23:15:38,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:38,096 INFO L225 Difference]: With dead ends: 364 [2019-10-13 23:15:38,096 INFO L226 Difference]: Without dead ends: 266 [2019-10-13 23:15:38,097 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 [2019-10-13 23:15:38,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-10-13 23:15:38,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 258. [2019-10-13 23:15:38,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2019-10-13 23:15:38,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 312 transitions. [2019-10-13 23:15:38,149 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 312 transitions. Word has length 50 [2019-10-13 23:15:38,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:38,150 INFO L462 AbstractCegarLoop]: Abstraction has 258 states and 312 transitions. [2019-10-13 23:15:38,150 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:15:38,150 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 312 transitions. [2019-10-13 23:15:38,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-10-13 23:15:38,151 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:38,151 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, 1] [2019-10-13 23:15:38,152 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:38,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:38,152 INFO L82 PathProgramCache]: Analyzing trace with hash 592703366, now seen corresponding path program 1 times [2019-10-13 23:15:38,152 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:38,153 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697656619] [2019-10-13 23:15:38,154 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:38,154 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:38,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:38,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:15:38,312 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697656619] [2019-10-13 23:15:38,312 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:38,313 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-13 23:15:38,313 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401435920] [2019-10-13 23:15:38,313 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-13 23:15:38,314 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:38,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-13 23:15:38,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-13 23:15:38,316 INFO L87 Difference]: Start difference. First operand 258 states and 312 transitions. Second operand 6 states. [2019-10-13 23:15:38,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:38,551 INFO L93 Difference]: Finished difference Result 706 states and 873 transitions. [2019-10-13 23:15:38,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 23:15:38,553 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-10-13 23:15:38,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:38,562 INFO L225 Difference]: With dead ends: 706 [2019-10-13 23:15:38,562 INFO L226 Difference]: Without dead ends: 473 [2019-10-13 23:15:38,565 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-13 23:15:38,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2019-10-13 23:15:38,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 461. [2019-10-13 23:15:38,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 461 states. [2019-10-13 23:15:38,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 561 transitions. [2019-10-13 23:15:38,630 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 561 transitions. Word has length 55 [2019-10-13 23:15:38,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:38,631 INFO L462 AbstractCegarLoop]: Abstraction has 461 states and 561 transitions. [2019-10-13 23:15:38,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-13 23:15:38,632 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 561 transitions. [2019-10-13 23:15:38,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-10-13 23:15:38,636 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:38,636 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, 1, 1, 1, 1] [2019-10-13 23:15:38,636 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:38,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:38,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1196958205, now seen corresponding path program 1 times [2019-10-13 23:15:38,637 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:38,637 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143723632] [2019-10-13 23:15:38,637 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:38,638 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:38,638 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:38,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:15:38,812 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143723632] [2019-10-13 23:15:38,813 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:38,813 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 23:15:38,814 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21770603] [2019-10-13 23:15:38,815 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:15:38,815 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:38,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:15:38,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:15:38,816 INFO L87 Difference]: Start difference. First operand 461 states and 561 transitions. Second operand 7 states. [2019-10-13 23:15:39,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:39,422 INFO L93 Difference]: Finished difference Result 1215 states and 1604 transitions. [2019-10-13 23:15:39,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-13 23:15:39,423 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-10-13 23:15:39,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:39,428 INFO L225 Difference]: With dead ends: 1215 [2019-10-13 23:15:39,428 INFO L226 Difference]: Without dead ends: 779 [2019-10-13 23:15:39,430 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-13 23:15:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2019-10-13 23:15:39,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 692. [2019-10-13 23:15:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2019-10-13 23:15:39,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 836 transitions. [2019-10-13 23:15:39,501 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 836 transitions. Word has length 58 [2019-10-13 23:15:39,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:39,502 INFO L462 AbstractCegarLoop]: Abstraction has 692 states and 836 transitions. [2019-10-13 23:15:39,502 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:15:39,502 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 836 transitions. [2019-10-13 23:15:39,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-10-13 23:15:39,505 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:39,505 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:15:39,505 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:39,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:39,506 INFO L82 PathProgramCache]: Analyzing trace with hash -565853544, now seen corresponding path program 1 times [2019-10-13 23:15:39,506 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:39,506 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972982205] [2019-10-13 23:15:39,506 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:39,507 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:39,507 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:15:39,605 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972982205] [2019-10-13 23:15:39,606 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:15:39,606 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 23:15:39,606 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819653709] [2019-10-13 23:15:39,607 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 23:15:39,607 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:15:39,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 23:15:39,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:15:39,608 INFO L87 Difference]: Start difference. First operand 692 states and 836 transitions. Second operand 3 states. [2019-10-13 23:15:39,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:15:39,664 INFO L93 Difference]: Finished difference Result 984 states and 1215 transitions. [2019-10-13 23:15:39,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 23:15:39,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-10-13 23:15:39,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:15:39,674 INFO L225 Difference]: With dead ends: 984 [2019-10-13 23:15:39,674 INFO L226 Difference]: Without dead ends: 981 [2019-10-13 23:15:39,675 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 23:15:39,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2019-10-13 23:15:39,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 941. [2019-10-13 23:15:39,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 941 states. [2019-10-13 23:15:39,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1162 transitions. [2019-10-13 23:15:39,744 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1162 transitions. Word has length 80 [2019-10-13 23:15:39,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:15:39,744 INFO L462 AbstractCegarLoop]: Abstraction has 941 states and 1162 transitions. [2019-10-13 23:15:39,744 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 23:15:39,745 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1162 transitions. [2019-10-13 23:15:39,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-10-13 23:15:39,749 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:15:39,749 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-10-13 23:15:39,749 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:15:39,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:15:39,749 INFO L82 PathProgramCache]: Analyzing trace with hash -222626685, now seen corresponding path program 1 times [2019-10-13 23:15:39,750 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:15:39,750 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025618339] [2019-10-13 23:15:39,750 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:39,750 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:15:39,750 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:15:39,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:40,020 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 20 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 23:15:40,020 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025618339] [2019-10-13 23:15:40,020 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [496058087] [2019-10-13 23:15:40,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:15:40,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:15:40,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-13 23:15:40,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:15:40,459 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-13 23:15:40,459 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:15:40,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:40,722 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:15:40,923 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-10-13 23:15:40,924 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1287791830] [2019-10-13 23:15:40,958 INFO L162 IcfgInterpreter]: Started Sifa with 96 locations of interest [2019-10-13 23:15:40,958 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:15:40,964 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:15:40,971 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:15:40,972 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:15:50,436 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 466 [2019-10-13 23:15:52,047 WARN L191 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2019-10-13 23:15:52,180 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:15:52,311 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:15:52,483 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 474 [2019-10-13 23:15:52,729 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:52,997 WARN L191 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:53,257 WARN L191 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:53,473 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:53,863 WARN L191 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 546 DAG size of output: 544 [2019-10-13 23:15:54,065 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:54,266 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:54,429 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:54,663 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:54,828 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 544 [2019-10-13 23:15:54,838 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 187 for LOIs [2019-10-13 23:15:55,109 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 513 [2019-10-13 23:15:55,110 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 548 for LOIs [2019-10-13 23:15:55,278 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:55,399 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:55,555 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:55,673 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:55,783 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:55,948 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:56,092 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:56,329 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:56,594 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 548 [2019-10-13 23:15:56,703 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:56,836 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:56,947 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:57,199 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:57,516 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:57,720 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:57,932 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,047 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:58,268 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,372 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:58,475 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:58,603 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:58,725 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:58,836 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:58,956 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:59,157 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:59,280 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:59,383 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:59,496 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 548 [2019-10-13 23:15:59,616 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:15:59,933 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:00,107 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:00,219 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:00,402 WARN L191 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:00,653 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:00,765 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:00,904 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:01,014 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:01,125 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:01,246 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:01,410 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:01,523 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:01,650 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:01,775 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:01,893 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:02,024 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:02,271 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:16:02,396 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:02,517 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:02,630 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:02,741 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:02,864 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:02,976 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:03,086 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:03,210 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:16:03,341 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:03,453 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:03,576 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:16:03,770 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-13 23:16:03,881 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:04,081 WARN L191 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:16:04,192 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:04,307 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:04,454 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:16:04,676 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:04,786 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:04,907 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:05,113 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:05,223 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:05,343 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:05,455 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:05,565 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:05,690 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:05,813 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:05,926 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:06,057 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:06,277 WARN L191 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:16:06,388 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:06,531 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:06,722 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:16:06,833 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:06,955 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:07,149 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:16:07,260 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:07,393 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:07,590 WARN L191 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-13 23:16:07,701 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:07,832 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:16:08,054 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:08,174 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:08,298 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:08,509 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:08,625 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:08,758 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:08,868 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:08,979 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:09,098 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:09,310 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:09,425 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:09,564 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:09,770 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:09,881 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:10,003 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:10,112 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:10,221 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:10,339 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:10,471 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:10,583 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:10,709 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:10,919 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:16:11,031 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:11,155 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:11,345 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:16:11,455 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:11,576 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:11,779 WARN L191 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 566 [2019-10-13 23:16:11,890 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 566 [2019-10-13 23:16:12,040 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:12,237 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 572 DAG size of output: 568 [2019-10-13 23:16:12,361 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 568 [2019-10-13 23:16:12,487 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 570 [2019-10-13 23:16:12,696 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:12,805 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:12,927 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:13,126 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:13,245 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:13,367 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:13,576 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:13,685 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:13,804 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:14,052 WARN L191 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 566 DAG size of output: 564 [2019-10-13 23:16:14,163 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:14,283 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:14,395 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:14,507 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 564 [2019-10-13 23:16:14,635 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 564