java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 15:20:39,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 15:20:39,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 15:20:39,760 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 15:20:39,761 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 15:20:39,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 15:20:39,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 15:20:39,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 15:20:39,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 15:20:39,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 15:20:39,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 15:20:39,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 15:20:39,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 15:20:39,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 15:20:39,783 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 15:20:39,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 15:20:39,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 15:20:39,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 15:20:39,788 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 15:20:39,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 15:20:39,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 15:20:39,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 15:20:39,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 15:20:39,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 15:20:39,796 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 15:20:39,796 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 15:20:39,796 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 15:20:39,797 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 15:20:39,797 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 15:20:39,798 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 15:20:39,798 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 15:20:39,799 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 15:20:39,800 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 15:20:39,801 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 15:20:39,802 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 15:20:39,802 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 15:20:39,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 15:20:39,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 15:20:39,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 15:20:39,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 15:20:39,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 15:20:39,806 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 [2019-10-07 15:20:39,820 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 15:20:39,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 15:20:39,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 15:20:39,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 15:20:39,822 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 15:20:39,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 15:20:39,823 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 15:20:39,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 15:20:39,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 15:20:39,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 15:20:39,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 15:20:39,824 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 15:20:39,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 15:20:39,824 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 15:20:39,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 15:20:39,824 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 15:20:39,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 15:20:39,825 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 15:20:39,825 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 15:20:39,825 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 15:20:39,825 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 15:20:39,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 15:20:39,826 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 15:20:39,826 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 15:20:39,826 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 15:20:39,826 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 15:20:39,826 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 15:20:39,827 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 15:20:39,827 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 [2019-10-07 15:20:40,102 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 15:20:40,120 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 15:20:40,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 15:20:40,125 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 15:20:40,125 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 15:20:40,126 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product22.cil.c [2019-10-07 15:20:40,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/500849e17/fb1dbe2a1b964218b0e5d433eadbc1e3/FLAGc57ebd520 [2019-10-07 15:20:40,754 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 15:20:40,755 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product22.cil.c [2019-10-07 15:20:40,770 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/500849e17/fb1dbe2a1b964218b0e5d433eadbc1e3/FLAGc57ebd520 [2019-10-07 15:20:40,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/500849e17/fb1dbe2a1b964218b0e5d433eadbc1e3 [2019-10-07 15:20:41,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 15:20:41,006 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 15:20:41,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 15:20:41,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 15:20:41,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 15:20:41,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:20:40" (1/1) ... [2019-10-07 15:20:41,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9b5beb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41, skipping insertion in model container [2019-10-07 15:20:41,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 03:20:40" (1/1) ... [2019-10-07 15:20:41,022 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 15:20:41,081 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 15:20:41,567 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:20:41,588 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 15:20:41,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 15:20:41,743 INFO L192 MainTranslator]: Completed translation [2019-10-07 15:20:41,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41 WrapperNode [2019-10-07 15:20:41,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 15:20:41,744 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 15:20:41,744 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 15:20:41,744 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 15:20:41,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41" (1/1) ... [2019-10-07 15:20:41,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41" (1/1) ... [2019-10-07 15:20:41,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41" (1/1) ... [2019-10-07 15:20:41,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41" (1/1) ... [2019-10-07 15:20:41,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41" (1/1) ... [2019-10-07 15:20:41,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41" (1/1) ... [2019-10-07 15:20:41,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41" (1/1) ... [2019-10-07 15:20:41,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 15:20:41,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 15:20:41,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 15:20:41,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 15:20:41,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41" (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 [2019-10-07 15:20:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 15:20:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 15:20:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-07 15:20:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-07 15:20:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-07 15:20:41,936 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-07 15:20:41,936 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-07 15:20:41,937 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-07 15:20:41,937 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-07 15:20:41,938 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-07 15:20:41,938 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-07 15:20:41,939 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-07 15:20:41,939 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-07 15:20:41,939 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-07 15:20:41,939 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-07 15:20:41,940 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-07 15:20:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-07 15:20:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-07 15:20:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:20:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:20:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:20:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-07 15:20:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-07 15:20:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-07 15:20:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-07 15:20:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-07 15:20:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 15:20:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-07 15:20:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-07 15:20:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-07 15:20:41,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-07 15:20:41,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-07 15:20:41,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-07 15:20:41,946 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-07 15:20:41,946 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-07 15:20:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-07 15:20:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-07 15:20:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-07 15:20:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-07 15:20:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-07 15:20:41,947 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-07 15:20:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 15:20:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 15:20:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-07 15:20:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-07 15:20:41,948 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-07 15:20:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-07 15:20:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-07 15:20:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-07 15:20:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-07 15:20:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-07 15:20:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-07 15:20:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-07 15:20:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-07 15:20:41,951 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-07 15:20:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-07 15:20:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-07 15:20:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-07 15:20:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-07 15:20:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-07 15:20:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-07 15:20:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-07 15:20:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-07 15:20:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-10-07 15:20:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-07 15:20:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 15:20:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-07 15:20:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-07 15:20:41,954 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-07 15:20:41,955 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-07 15:20:41,955 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-07 15:20:41,955 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-07 15:20:41,955 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-07 15:20:41,956 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-07 15:20:41,956 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-07 15:20:41,957 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-07 15:20:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 15:20:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-07 15:20:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-07 15:20:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-07 15:20:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-07 15:20:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-07 15:20:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-07 15:20:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 15:20:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-07 15:20:41,960 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-07 15:20:41,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 15:20:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-07 15:20:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-07 15:20:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 15:20:41,962 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-07 15:20:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-07 15:20:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-07 15:20:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 15:20:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 15:20:41,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 15:20:43,668 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 15:20:43,668 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-07 15:20:43,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:20:43 BoogieIcfgContainer [2019-10-07 15:20:43,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 15:20:43,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 15:20:43,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 15:20:43,674 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 15:20:43,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 03:20:40" (1/3) ... [2019-10-07 15:20:43,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5b2550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:20:43, skipping insertion in model container [2019-10-07 15:20:43,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 03:20:41" (2/3) ... [2019-10-07 15:20:43,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b5b2550 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 03:20:43, skipping insertion in model container [2019-10-07 15:20:43,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 03:20:43" (3/3) ... [2019-10-07 15:20:43,678 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product22.cil.c [2019-10-07 15:20:43,688 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 15:20:43,697 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 15:20:43,709 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 15:20:43,736 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 15:20:43,736 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 15:20:43,736 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 15:20:43,737 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 15:20:43,737 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 15:20:43,737 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 15:20:43,737 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 15:20:43,737 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 15:20:43,759 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2019-10-07 15:20:43,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-07 15:20:43,770 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:43,771 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:43,773 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:43,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:43,779 INFO L82 PathProgramCache]: Analyzing trace with hash 119881243, now seen corresponding path program 1 times [2019-10-07 15:20:43,788 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:43,789 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:43,789 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:43,790 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:43,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:44,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:44,220 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:44,220 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:44,221 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:44,221 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-07 15:20:44,225 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-07 15:20:44,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-07 15:20:44,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-07 15:20:44,239 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 2 states. [2019-10-07 15:20:44,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:44,289 INFO L93 Difference]: Finished difference Result 228 states and 277 transitions. [2019-10-07 15:20:44,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-07 15:20:44,291 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-07 15:20:44,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:44,303 INFO L225 Difference]: With dead ends: 228 [2019-10-07 15:20:44,303 INFO L226 Difference]: Without dead ends: 116 [2019-10-07 15:20:44,308 INFO L606 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 [2019-10-07 15:20:44,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2019-10-07 15:20:44,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-10-07 15:20:44,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-10-07 15:20:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 134 transitions. [2019-10-07 15:20:44,410 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 134 transitions. Word has length 52 [2019-10-07 15:20:44,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:44,410 INFO L462 AbstractCegarLoop]: Abstraction has 116 states and 134 transitions. [2019-10-07 15:20:44,411 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-07 15:20:44,411 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 134 transitions. [2019-10-07 15:20:44,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-07 15:20:44,421 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:44,421 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:44,422 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:44,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:44,425 INFO L82 PathProgramCache]: Analyzing trace with hash 460914298, now seen corresponding path program 1 times [2019-10-07 15:20:44,425 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:44,425 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:44,426 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:44,426 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:44,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:44,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:44,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:44,621 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:44,621 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:44,622 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 15:20:44,624 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 15:20:44,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 15:20:44,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 15:20:44,627 INFO L87 Difference]: Start difference. First operand 116 states and 134 transitions. Second operand 3 states. [2019-10-07 15:20:44,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:44,671 INFO L93 Difference]: Finished difference Result 182 states and 211 transitions. [2019-10-07 15:20:44,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 15:20:44,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-07 15:20:44,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:44,675 INFO L225 Difference]: With dead ends: 182 [2019-10-07 15:20:44,675 INFO L226 Difference]: Without dead ends: 108 [2019-10-07 15:20:44,678 INFO L606 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 [2019-10-07 15:20:44,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-10-07 15:20:44,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-10-07 15:20:44,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-07 15:20:44,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 123 transitions. [2019-10-07 15:20:44,706 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 123 transitions. Word has length 53 [2019-10-07 15:20:44,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:44,707 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 123 transitions. [2019-10-07 15:20:44,707 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 15:20:44,707 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 123 transitions. [2019-10-07 15:20:44,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-07 15:20:44,712 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:44,712 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:44,712 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:44,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:44,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1180234233, now seen corresponding path program 1 times [2019-10-07 15:20:44,713 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:44,713 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:44,714 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:44,714 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:44,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:44,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:44,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 15:20:44,969 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:44,969 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:44,969 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:20:44,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:20:44,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:20:44,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:20:44,972 INFO L87 Difference]: Start difference. First operand 108 states and 123 transitions. Second operand 7 states. [2019-10-07 15:20:45,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:45,304 INFO L93 Difference]: Finished difference Result 191 states and 222 transitions. [2019-10-07 15:20:45,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-07 15:20:45,304 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 56 [2019-10-07 15:20:45,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:45,306 INFO L225 Difference]: With dead ends: 191 [2019-10-07 15:20:45,306 INFO L226 Difference]: Without dead ends: 108 [2019-10-07 15:20:45,308 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-07 15:20:45,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2019-10-07 15:20:45,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2019-10-07 15:20:45,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-07 15:20:45,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 122 transitions. [2019-10-07 15:20:45,321 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 122 transitions. Word has length 56 [2019-10-07 15:20:45,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:45,323 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 122 transitions. [2019-10-07 15:20:45,323 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:20:45,323 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 122 transitions. [2019-10-07 15:20:45,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-10-07 15:20:45,325 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 15:20:45,325 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 15:20:45,326 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 15:20:45,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 15:20:45,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1262796551, now seen corresponding path program 1 times [2019-10-07 15:20:45,326 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 15:20:45,326 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:45,327 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:45,327 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 15:20:45,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 15:20:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 15:20:45,451 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-07 15:20:45,451 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 15:20:45,452 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 15:20:45,452 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-07 15:20:45,453 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-07 15:20:45,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-07 15:20:45,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-07 15:20:45,454 INFO L87 Difference]: Start difference. First operand 108 states and 122 transitions. Second operand 7 states. [2019-10-07 15:20:45,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 15:20:45,790 INFO L93 Difference]: Finished difference Result 162 states and 189 transitions. [2019-10-07 15:20:45,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-07 15:20:45,791 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 69 [2019-10-07 15:20:45,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 15:20:45,792 INFO L225 Difference]: With dead ends: 162 [2019-10-07 15:20:45,792 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 15:20:45,793 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-10-07 15:20:45,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 15:20:45,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 15:20:45,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 15:20:45,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 15:20:45,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2019-10-07 15:20:45,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 15:20:45,795 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 15:20:45,795 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-07 15:20:45,795 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 15:20:45,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 15:20:45,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 15:20:46,398 INFO L443 ceAbstractionStarter]: For program point L574-2(lines 574 595) no Hoare annotation was computed. [2019-10-07 15:20:46,399 INFO L443 ceAbstractionStarter]: For program point L596(lines 573 597) no Hoare annotation was computed. [2019-10-07 15:20:46,399 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeEXIT(lines 549 604) no Hoare annotation was computed. [2019-10-07 15:20:46,400 INFO L443 ceAbstractionStarter]: For program point L580(lines 580 584) no Hoare annotation was computed. [2019-10-07 15:20:46,400 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_freeENTRY(lines 549 604) no Hoare annotation was computed. [2019-10-07 15:20:46,400 INFO L443 ceAbstractionStarter]: For program point L637(lines 637 641) no Hoare annotation was computed. [2019-10-07 15:20:46,400 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetFINAL(lines 605 664) no Hoare annotation was computed. [2019-10-07 15:20:46,400 INFO L443 ceAbstractionStarter]: For program point L631-2(lines 631 656) no Hoare annotation was computed. [2019-10-07 15:20:46,400 INFO L443 ceAbstractionStarter]: For program point L657(lines 630 658) no Hoare annotation was computed. [2019-10-07 15:20:46,400 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetENTRY(lines 605 664) no Hoare annotation was computed. [2019-10-07 15:20:46,401 INFO L443 ceAbstractionStarter]: For program point L650(line 650) no Hoare annotation was computed. [2019-10-07 15:20:46,401 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_resetEXIT(lines 605 664) no Hoare annotation was computed. [2019-10-07 15:20:46,401 INFO L443 ceAbstractionStarter]: For program point L650-1(line 650) no Hoare annotation was computed. [2019-10-07 15:20:46,401 INFO L446 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2019-10-07 15:20:46,401 INFO L443 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2019-10-07 15:20:46,401 INFO L443 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2019-10-07 15:20:46,402 INFO L446 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2019-10-07 15:20:46,402 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__1ENTRY(lines 282 289) the Hoare annotation is: true [2019-10-07 15:20:46,402 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__1EXIT(lines 282 289) no Hoare annotation was computed. [2019-10-07 15:20:46,402 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__2ENTRY(lines 290 299) the Hoare annotation is: true [2019-10-07 15:20:46,402 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__2EXIT(lines 290 299) no Hoare annotation was computed. [2019-10-07 15:20:46,402 INFO L443 ceAbstractionStarter]: For program point L295(line 295) no Hoare annotation was computed. [2019-10-07 15:20:46,402 INFO L439 ceAbstractionStarter]: At program point L315(line 315) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,403 INFO L443 ceAbstractionStarter]: For program point L313(lines 313 319) no Hoare annotation was computed. [2019-10-07 15:20:46,403 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 322) no Hoare annotation was computed. [2019-10-07 15:20:46,403 INFO L446 ceAbstractionStarter]: At program point L310(line 310) the Hoare annotation is: true [2019-10-07 15:20:46,403 INFO L443 ceAbstractionStarter]: For program point L310-1(line 310) no Hoare annotation was computed. [2019-10-07 15:20:46,403 INFO L443 ceAbstractionStarter]: For program point L308(lines 308 325) no Hoare annotation was computed. [2019-10-07 15:20:46,403 INFO L443 ceAbstractionStarter]: For program point L308-1(lines 300 328) no Hoare annotation was computed. [2019-10-07 15:20:46,403 INFO L446 ceAbstractionStarter]: At program point L306(line 306) the Hoare annotation is: true [2019-10-07 15:20:46,404 INFO L443 ceAbstractionStarter]: For program point L306-1(line 306) no Hoare annotation was computed. [2019-10-07 15:20:46,404 INFO L446 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__3ENTRY(lines 300 328) the Hoare annotation is: true [2019-10-07 15:20:46,404 INFO L443 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__3EXIT(lines 300 328) no Hoare annotation was computed. [2019-10-07 15:20:46,404 INFO L443 ceAbstractionStarter]: For program point L481(line 481) no Hoare annotation was computed. [2019-10-07 15:20:46,404 INFO L439 ceAbstractionStarter]: At program point L480(line 480) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,404 INFO L439 ceAbstractionStarter]: At program point L479(line 479) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,405 INFO L439 ceAbstractionStarter]: At program point L479-1(line 479) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,405 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 473 495) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,405 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 473 495) no Hoare annotation was computed. [2019-10-07 15:20:46,405 INFO L439 ceAbstractionStarter]: At program point L485(line 485) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 1 ~systemActive~0) (= main_~tmp~5 ~systemActive~0) (= ~pumpRunning~0 0))) [2019-10-07 15:20:46,405 INFO L439 ceAbstractionStarter]: At program point L485-1(line 485) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 1 ~systemActive~0) (= main_~tmp~5 ~systemActive~0) (= ~pumpRunning~0 0))) [2019-10-07 15:20:46,405 INFO L443 ceAbstractionStarter]: For program point L483(lines 483 490) no Hoare annotation was computed. [2019-10-07 15:20:46,405 INFO L443 ceAbstractionStarter]: For program point L483-1(lines 483 490) no Hoare annotation was computed. [2019-10-07 15:20:46,406 INFO L443 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2019-10-07 15:20:46,406 INFO L443 ceAbstractionStarter]: For program point L448(line 448) no Hoare annotation was computed. [2019-10-07 15:20:46,406 INFO L443 ceAbstractionStarter]: For program point Specification2EXIT(lines 431 454) no Hoare annotation was computed. [2019-10-07 15:20:46,406 INFO L443 ceAbstractionStarter]: For program point L447(line 447) no Hoare annotation was computed. [2019-10-07 15:20:46,406 INFO L443 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2019-10-07 15:20:46,406 INFO L443 ceAbstractionStarter]: For program point L445(line 445) no Hoare annotation was computed. [2019-10-07 15:20:46,406 INFO L443 ceAbstractionStarter]: For program point Specification2ENTRY(lines 431 454) no Hoare annotation was computed. [2019-10-07 15:20:46,407 INFO L443 ceAbstractionStarter]: For program point L444(line 444) no Hoare annotation was computed. [2019-10-07 15:20:46,407 INFO L443 ceAbstractionStarter]: For program point Specification2FINAL(lines 431 454) no Hoare annotation was computed. [2019-10-07 15:20:46,407 INFO L443 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2019-10-07 15:20:46,407 INFO L443 ceAbstractionStarter]: For program point L442(line 442) no Hoare annotation was computed. [2019-10-07 15:20:46,407 INFO L443 ceAbstractionStarter]: For program point L441(line 441) no Hoare annotation was computed. [2019-10-07 15:20:46,407 INFO L443 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2019-10-07 15:20:46,407 INFO L443 ceAbstractionStarter]: For program point L439(line 439) no Hoare annotation was computed. [2019-10-07 15:20:46,408 INFO L443 ceAbstractionStarter]: For program point L438(line 438) no Hoare annotation was computed. [2019-10-07 15:20:46,408 INFO L443 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2019-10-07 15:20:46,408 INFO L443 ceAbstractionStarter]: For program point L436(line 436) no Hoare annotation was computed. [2019-10-07 15:20:46,408 INFO L443 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 206 214) no Hoare annotation was computed. [2019-10-07 15:20:46,408 INFO L446 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 206 214) the Hoare annotation is: true [2019-10-07 15:20:46,408 INFO L443 ceAbstractionStarter]: For program point L258-1(line 258) no Hoare annotation was computed. [2019-10-07 15:20:46,408 INFO L446 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 251 269) the Hoare annotation is: true [2019-10-07 15:20:46,409 INFO L443 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 251 269) no Hoare annotation was computed. [2019-10-07 15:20:46,409 INFO L446 ceAbstractionStarter]: At program point L258(line 258) the Hoare annotation is: true [2019-10-07 15:20:46,409 INFO L443 ceAbstractionStarter]: For program point L245(line 245) no Hoare annotation was computed. [2019-10-07 15:20:46,409 INFO L443 ceAbstractionStarter]: For program point L245-1(line 245) no Hoare annotation was computed. [2019-10-07 15:20:46,409 INFO L443 ceAbstractionStarter]: For program point printPumpENTRY(lines 215 250) no Hoare annotation was computed. [2019-10-07 15:20:46,409 INFO L443 ceAbstractionStarter]: For program point printPumpEXIT(lines 215 250) no Hoare annotation was computed. [2019-10-07 15:20:46,409 INFO L443 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2019-10-07 15:20:46,410 INFO L446 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2019-10-07 15:20:46,410 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setENTRY(lines 503 548) no Hoare annotation was computed. [2019-10-07 15:20:46,410 INFO L443 ceAbstractionStarter]: For program point __utac__exception__cf_handler_setEXIT(lines 503 548) no Hoare annotation was computed. [2019-10-07 15:20:46,410 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeENTRY(lines 816 861) no Hoare annotation was computed. [2019-10-07 15:20:46,410 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argtypeEXIT(lines 816 861) no Hoare annotation was computed. [2019-10-07 15:20:46,410 INFO L439 ceAbstractionStarter]: At program point runTestENTRY(lines 462 472) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,411 INFO L443 ceAbstractionStarter]: For program point runTestEXIT(lines 462 472) no Hoare annotation was computed. [2019-10-07 15:20:46,411 INFO L443 ceAbstractionStarter]: For program point runTestFINAL(lines 462 472) no Hoare annotation was computed. [2019-10-07 15:20:46,411 INFO L439 ceAbstractionStarter]: At program point L467(line 467) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,411 INFO L446 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 195 205) the Hoare annotation is: true [2019-10-07 15:20:46,411 INFO L443 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 195 205) no Hoare annotation was computed. [2019-10-07 15:20:46,411 INFO L446 ceAbstractionStarter]: At program point L200(line 200) the Hoare annotation is: true [2019-10-07 15:20:46,411 INFO L443 ceAbstractionStarter]: For program point L200-1(line 200) no Hoare annotation was computed. [2019-10-07 15:20:46,412 INFO L446 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 187 194) the Hoare annotation is: true [2019-10-07 15:20:46,412 INFO L443 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 187 194) no Hoare annotation was computed. [2019-10-07 15:20:46,412 INFO L439 ceAbstractionStarter]: At program point L160(line 160) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,412 INFO L443 ceAbstractionStarter]: For program point L160-1(line 160) no Hoare annotation was computed. [2019-10-07 15:20:46,412 INFO L443 ceAbstractionStarter]: For program point L158(lines 158 175) no Hoare annotation was computed. [2019-10-07 15:20:46,412 INFO L443 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 154 178) no Hoare annotation was computed. [2019-10-07 15:20:46,412 INFO L439 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 154 178) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 0) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,413 INFO L439 ceAbstractionStarter]: At program point L173(line 173) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 0) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,413 INFO L443 ceAbstractionStarter]: For program point L173-1(lines 154 178) no Hoare annotation was computed. [2019-10-07 15:20:46,413 INFO L439 ceAbstractionStarter]: At program point L168(line 168) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,413 INFO L439 ceAbstractionStarter]: At program point L164(line 164) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,413 INFO L443 ceAbstractionStarter]: For program point L162(lines 162 170) no Hoare annotation was computed. [2019-10-07 15:20:46,413 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 120 126) no Hoare annotation was computed. [2019-10-07 15:20:46,413 INFO L446 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 120 126) the Hoare annotation is: true [2019-10-07 15:20:46,413 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 359) no Hoare annotation was computed. [2019-10-07 15:20:46,414 INFO L443 ceAbstractionStarter]: For program point L353-1(lines 353 359) no Hoare annotation was computed. [2019-10-07 15:20:46,414 INFO L439 ceAbstractionStarter]: At program point testENTRY(lines 333 398) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,414 INFO L443 ceAbstractionStarter]: For program point testFINAL(lines 333 398) no Hoare annotation was computed. [2019-10-07 15:20:46,414 INFO L439 ceAbstractionStarter]: At program point L391(lines 342 392) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,414 INFO L439 ceAbstractionStarter]: At program point L381-2(lines 373 386) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 test_~splverifierCounter~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,414 INFO L443 ceAbstractionStarter]: For program point L344(lines 343 390) no Hoare annotation was computed. [2019-10-07 15:20:46,414 INFO L439 ceAbstractionStarter]: At program point L375(line 375) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 test_~splverifierCounter~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,415 INFO L443 ceAbstractionStarter]: For program point L373(lines 373 386) no Hoare annotation was computed. [2019-10-07 15:20:46,415 INFO L439 ceAbstractionStarter]: At program point L365(line 365) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 test_~splverifierCounter~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,415 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 369) no Hoare annotation was computed. [2019-10-07 15:20:46,415 INFO L443 ceAbstractionStarter]: For program point L363-1(lines 363 369) no Hoare annotation was computed. [2019-10-07 15:20:46,415 INFO L439 ceAbstractionStarter]: At program point L388(lines 343 390) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 test_~splverifierCounter~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,415 INFO L439 ceAbstractionStarter]: At program point L355(line 355) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~systemActive~0) (= 0 test_~splverifierCounter~0) (= ~pumpRunning~0 0)) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,415 INFO L443 ceAbstractionStarter]: For program point testEXIT(lines 333 398) no Hoare annotation was computed. [2019-10-07 15:20:46,416 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argENTRY(lines 770 815) no Hoare annotation was computed. [2019-10-07 15:20:46,416 INFO L443 ceAbstractionStarter]: For program point __utac__get_this_argEXIT(lines 770 815) no Hoare annotation was computed. [2019-10-07 15:20:46,416 INFO L446 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 942 950) the Hoare annotation is: true [2019-10-07 15:20:46,416 INFO L443 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 942 950) no Hoare annotation was computed. [2019-10-07 15:20:46,416 INFO L443 ceAbstractionStarter]: For program point printEnvironmentEXIT(lines 910 932) no Hoare annotation was computed. [2019-10-07 15:20:46,416 INFO L443 ceAbstractionStarter]: For program point printEnvironmentENTRY(lines 910 932) no Hoare annotation was computed. [2019-10-07 15:20:46,416 INFO L443 ceAbstractionStarter]: For program point select_oneENTRY(lines 44 53) no Hoare annotation was computed. [2019-10-07 15:20:46,417 INFO L443 ceAbstractionStarter]: For program point select_oneEXIT(lines 44 53) no Hoare annotation was computed. [2019-10-07 15:20:46,417 INFO L443 ceAbstractionStarter]: For program point L737(lines 715 738) no Hoare annotation was computed. [2019-10-07 15:20:46,417 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtENTRY(lines 667 769) no Hoare annotation was computed. [2019-10-07 15:20:46,417 INFO L443 ceAbstractionStarter]: For program point L696(lines 696 712) no Hoare annotation was computed. [2019-10-07 15:20:46,417 INFO L443 ceAbstractionStarter]: For program point L717(lines 716 736) no Hoare annotation was computed. [2019-10-07 15:20:46,417 INFO L443 ceAbstractionStarter]: For program point L748(line 748) no Hoare annotation was computed. [2019-10-07 15:20:46,417 INFO L443 ceAbstractionStarter]: For program point L748-1(line 748) no Hoare annotation was computed. [2019-10-07 15:20:46,418 INFO L443 ceAbstractionStarter]: For program point L713(lines 713 754) no Hoare annotation was computed. [2019-10-07 15:20:46,418 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtFINAL(lines 667 769) no Hoare annotation was computed. [2019-10-07 15:20:46,418 INFO L443 ceAbstractionStarter]: For program point L732(line 732) no Hoare annotation was computed. [2019-10-07 15:20:46,418 INFO L443 ceAbstractionStarter]: For program point L732-1(line 732) no Hoare annotation was computed. [2019-10-07 15:20:46,418 INFO L443 ceAbstractionStarter]: For program point L691(lines 691 695) no Hoare annotation was computed. [2019-10-07 15:20:46,418 INFO L443 ceAbstractionStarter]: For program point __utac__error_stack_mgtEXIT(lines 667 769) no Hoare annotation was computed. [2019-10-07 15:20:46,418 INFO L443 ceAbstractionStarter]: For program point L716-2(lines 716 736) no Hoare annotation was computed. [2019-10-07 15:20:46,419 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2019-10-07 15:20:46,419 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 15:20:46,419 INFO L443 ceAbstractionStarter]: For program point activatePumpEXIT(lines 179 186) no Hoare annotation was computed. [2019-10-07 15:20:46,419 INFO L443 ceAbstractionStarter]: For program point activatePumpENTRY(lines 179 186) no Hoare annotation was computed. [2019-10-07 15:20:46,419 INFO L446 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 933 941) the Hoare annotation is: true [2019-10-07 15:20:46,419 INFO L443 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 933 941) no Hoare annotation was computed. [2019-10-07 15:20:46,419 INFO L446 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 889 900) the Hoare annotation is: true [2019-10-07 15:20:46,420 INFO L443 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 889 900) no Hoare annotation was computed. [2019-10-07 15:20:46,420 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2019-10-07 15:20:46,420 INFO L443 ceAbstractionStarter]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2019-10-07 15:20:46,420 INFO L446 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 901 909) the Hoare annotation is: true [2019-10-07 15:20:46,420 INFO L443 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 901 909) no Hoare annotation was computed. [2019-10-07 15:20:46,420 INFO L439 ceAbstractionStarter]: At program point timeShiftENTRY(lines 93 119) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 0) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,420 INFO L439 ceAbstractionStarter]: At program point L109(line 109) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 0) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,421 INFO L439 ceAbstractionStarter]: At program point L107(lines 107 113) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 0) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,421 INFO L443 ceAbstractionStarter]: For program point timeShiftEXIT(lines 93 119) no Hoare annotation was computed. [2019-10-07 15:20:46,421 INFO L443 ceAbstractionStarter]: For program point timeShiftFINAL(lines 93 119) no Hoare annotation was computed. [2019-10-07 15:20:46,421 INFO L439 ceAbstractionStarter]: At program point L102(line 102) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,421 INFO L443 ceAbstractionStarter]: For program point L100(lines 96 118) no Hoare annotation was computed. [2019-10-07 15:20:46,421 INFO L443 ceAbstractionStarter]: For program point L98(lines 96 118) no Hoare annotation was computed. [2019-10-07 15:20:46,422 INFO L443 ceAbstractionStarter]: For program point cleanupEXIT(lines 401 430) no Hoare annotation was computed. [2019-10-07 15:20:46,422 INFO L443 ceAbstractionStarter]: For program point L415(lines 415 419) no Hoare annotation was computed. [2019-10-07 15:20:46,422 INFO L446 ceAbstractionStarter]: At program point L415-1(lines 415 419) the Hoare annotation is: true [2019-10-07 15:20:46,422 INFO L446 ceAbstractionStarter]: At program point cleanupENTRY(lines 401 430) the Hoare annotation is: true [2019-10-07 15:20:46,423 INFO L446 ceAbstractionStarter]: At program point L411-2(lines 411 425) the Hoare annotation is: true [2019-10-07 15:20:46,423 INFO L446 ceAbstractionStarter]: At program point L407(line 407) the Hoare annotation is: true [2019-10-07 15:20:46,424 INFO L443 ceAbstractionStarter]: For program point L407-1(line 407) no Hoare annotation was computed. [2019-10-07 15:20:46,424 INFO L446 ceAbstractionStarter]: At program point L426(lines 401 430) the Hoare annotation is: true [2019-10-07 15:20:46,424 INFO L443 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2019-10-07 15:20:46,425 INFO L446 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 865 876) the Hoare annotation is: true [2019-10-07 15:20:46,425 INFO L443 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 865 876) no Hoare annotation was computed. [2019-10-07 15:20:46,426 INFO L443 ceAbstractionStarter]: For program point setupEXIT(lines 455 461) no Hoare annotation was computed. [2019-10-07 15:20:46,426 INFO L446 ceAbstractionStarter]: At program point setupFINAL(lines 455 461) the Hoare annotation is: true [2019-10-07 15:20:46,426 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 15:20:46,427 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2019-10-07 15:20:46,427 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 15:20:46,427 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 15:20:46,428 INFO L443 ceAbstractionStarter]: For program point startSystemEXIT(lines 270 277) no Hoare annotation was computed. [2019-10-07 15:20:46,428 INFO L439 ceAbstractionStarter]: At program point startSystemENTRY(lines 270 277) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (= 1 ~systemActive~0) (not (= |old(~systemActive~0)| 1))) [2019-10-07 15:20:46,429 INFO L443 ceAbstractionStarter]: For program point waterRiseEXIT(lines 877 888) no Hoare annotation was computed. [2019-10-07 15:20:46,429 INFO L446 ceAbstractionStarter]: At program point waterRiseENTRY(lines 877 888) the Hoare annotation is: true [2019-10-07 15:20:46,429 INFO L443 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 956) no Hoare annotation was computed. [2019-10-07 15:20:46,429 INFO L446 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 952 959) the Hoare annotation is: true [2019-10-07 15:20:46,430 INFO L443 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 952 959) no Hoare annotation was computed. [2019-10-07 15:20:46,430 INFO L443 ceAbstractionStarter]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 128 152) no Hoare annotation was computed. [2019-10-07 15:20:46,430 INFO L439 ceAbstractionStarter]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 128 152) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 0) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,430 INFO L439 ceAbstractionStarter]: At program point L147(line 147) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~pumpRunning~0 0) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,430 INFO L443 ceAbstractionStarter]: For program point L147-1(lines 128 152) no Hoare annotation was computed. [2019-10-07 15:20:46,431 INFO L439 ceAbstractionStarter]: At program point L142(line 142) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,431 INFO L439 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,432 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 144) no Hoare annotation was computed. [2019-10-07 15:20:46,432 INFO L439 ceAbstractionStarter]: At program point L134(line 134) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2019-10-07 15:20:46,432 INFO L443 ceAbstractionStarter]: For program point L134-1(line 134) no Hoare annotation was computed. [2019-10-07 15:20:46,432 INFO L443 ceAbstractionStarter]: For program point L132(lines 132 149) no Hoare annotation was computed. [2019-10-07 15:20:46,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 03:20:46 BoogieIcfgContainer [2019-10-07 15:20:46,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 15:20:46,456 INFO L168 Benchmark]: Toolchain (without parser) took 5448.45 ms. Allocated memory was 140.0 MB in the beginning and 246.9 MB in the end (delta: 107.0 MB). Free memory was 101.0 MB in the beginning and 142.1 MB in the end (delta: -41.1 MB). Peak memory consumption was 120.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:46,457 INFO L168 Benchmark]: CDTParser took 1.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 15:20:46,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.46 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 170.2 MB in the end (delta: -69.4 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:46,459 INFO L168 Benchmark]: Boogie Preprocessor took 110.72 ms. Allocated memory is still 203.9 MB. Free memory was 170.2 MB in the beginning and 166.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:46,460 INFO L168 Benchmark]: RCFGBuilder took 1813.45 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 165.5 MB in the beginning and 148.5 MB in the end (delta: 17.0 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:46,461 INFO L168 Benchmark]: TraceAbstraction took 2781.89 ms. Allocated memory was 236.5 MB in the beginning and 246.9 MB in the end (delta: 10.5 MB). Free memory was 148.5 MB in the beginning and 142.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 7.1 GB. [2019-10-07 15:20:46,465 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.22 ms. Allocated memory is still 140.0 MB. Free memory was 120.4 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 736.46 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 170.2 MB in the end (delta: -69.4 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.72 ms. Allocated memory is still 203.9 MB. Free memory was 170.2 MB in the beginning and 166.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1813.45 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 165.5 MB in the beginning and 148.5 MB in the end (delta: 17.0 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2781.89 ms. Allocated memory was 236.5 MB in the beginning and 246.9 MB in the end (delta: 10.5 MB). Free memory was 148.5 MB in the beginning and 142.1 MB in the end (delta: 6.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 956]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 342]: Loop Invariant Derived loop invariant: !(0 == \old(pumpRunning)) || !(\old(systemActive) == 1) - InvariantResult [Line: 411]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 401]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 343]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || ((1 == systemActive && 0 == splverifierCounter) && pumpRunning == 0)) || !(\old(systemActive) == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 188 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, HoareTripleCheckerStatistics: 445 SDtfs, 183 SDslu, 454 SDs, 0 SdLazy, 296 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=149occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 236 PreInvPairs, 244 NumberOfFragments, 461 HoareAnnotationTreeSize, 236 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 62 FomulaSimplificationsInter, 350 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 230 NumberOfCodeBlocks, 230 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 226 ConstructedInterpolants, 0 QuantifiedInterpolants, 22776 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...