./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product19_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product19_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash db72a434ba2554f10f7540a58e5ab1c726dc8fbe ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:21:10,918 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:21:10,920 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:21:10,930 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:21:10,931 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:21:10,932 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:21:10,933 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:21:10,935 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:21:10,937 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:21:10,937 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:21:10,938 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:21:10,939 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:21:10,940 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:21:10,940 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:21:10,941 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:21:10,943 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:21:10,943 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:21:10,945 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:21:10,947 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:21:10,949 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:21:10,950 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:21:10,951 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:21:10,953 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:21:10,954 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:21:10,954 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:21:10,955 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:21:10,956 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:21:10,957 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:21:10,957 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:21:10,959 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:21:10,960 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:21:10,960 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:21:10,960 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:21:10,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:21:10,962 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:21:10,963 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:21:10,963 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:21:10,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:21:10,981 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:21:10,981 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:21:10,984 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:21:10,984 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:21:10,985 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:21:10,985 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:21:10,985 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:21:10,986 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:21:10,986 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:21:10,986 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:21:10,987 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:21:10,987 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:21:10,987 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:21:10,987 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:21:10,987 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:21:10,988 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:21:10,988 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:21:10,990 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:21:10,990 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:21:10,991 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:21:10,991 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:21:10,991 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:21:10,991 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:21:10,992 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:21:10,992 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:21:10,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:21:10,992 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:21:10,992 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:21:10,992 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:21:10,993 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:21:10,993 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:21:10,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:21:10,993 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:21:10,993 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db72a434ba2554f10f7540a58e5ab1c726dc8fbe [2018-10-27 00:21:11,048 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:21:11,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:21:11,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:21:11,073 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:21:11,073 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:21:11,074 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product19_true-unreach-call_false-termination.cil.c [2018-10-27 00:21:11,133 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/data/c18fd6e97/cc5ded44309b43ea8d3c84376ea3c376/FLAGfcfe2bdcf [2018-10-27 00:21:11,568 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:21:11,569 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/sv-benchmarks/c/product-lines/minepump_spec1_product19_true-unreach-call_false-termination.cil.c [2018-10-27 00:21:11,581 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/data/c18fd6e97/cc5ded44309b43ea8d3c84376ea3c376/FLAGfcfe2bdcf [2018-10-27 00:21:11,601 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/data/c18fd6e97/cc5ded44309b43ea8d3c84376ea3c376 [2018-10-27 00:21:11,604 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:21:11,605 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:21:11,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:21:11,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:21:11,610 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:21:11,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:21:11" (1/1) ... [2018-10-27 00:21:11,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ffa6d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:11, skipping insertion in model container [2018-10-27 00:21:11,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:21:11" (1/1) ... [2018-10-27 00:21:11,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:21:11,665 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:21:11,915 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:21:11,925 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:21:12,020 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:21:12,063 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:21:12,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12 WrapperNode [2018-10-27 00:21:12,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:21:12,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:21:12,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:21:12,066 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:21:12,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (1/1) ... [2018-10-27 00:21:12,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (1/1) ... [2018-10-27 00:21:12,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:21:12,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:21:12,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:21:12,218 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:21:12,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (1/1) ... [2018-10-27 00:21:12,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (1/1) ... [2018-10-27 00:21:12,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (1/1) ... [2018-10-27 00:21:12,232 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (1/1) ... [2018-10-27 00:21:12,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (1/1) ... [2018-10-27 00:21:12,266 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (1/1) ... [2018-10-27 00:21:12,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (1/1) ... [2018-10-27 00:21:12,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:21:12,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:21:12,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:21:12,281 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:21:12,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/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 [2018-10-27 00:21:12,361 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-10-27 00:21:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-10-27 00:21:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:21:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:21:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-10-27 00:21:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-10-27 00:21:12,362 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-10-27 00:21:12,362 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-10-27 00:21:12,363 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-10-27 00:21:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-10-27 00:21:12,363 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-10-27 00:21:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-10-27 00:21:12,363 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-10-27 00:21:12,363 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-10-27 00:21:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-10-27 00:21:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-10-27 00:21:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-10-27 00:21:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-10-27 00:21:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-10-27 00:21:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-10-27 00:21:12,364 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-10-27 00:21:12,364 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-10-27 00:21:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-10-27 00:21:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-10-27 00:21:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-10-27 00:21:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-10-27 00:21:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-10-27 00:21:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-10-27 00:21:12,365 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-10-27 00:21:12,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-10-27 00:21:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-10-27 00:21:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-10-27 00:21:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-10-27 00:21:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-10-27 00:21:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-10-27 00:21:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-10-27 00:21:12,366 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-10-27 00:21:12,366 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-10-27 00:21:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:21:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:21:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-10-27 00:21:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-10-27 00:21:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:21:12,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:21:12,367 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-10-27 00:21:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-10-27 00:21:12,368 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-10-27 00:21:12,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-10-27 00:21:13,618 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:21:13,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:21:13 BoogieIcfgContainer [2018-10-27 00:21:13,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:21:13,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:21:13,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:21:13,624 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:21:13,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:21:11" (1/3) ... [2018-10-27 00:21:13,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce336bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:21:13, skipping insertion in model container [2018-10-27 00:21:13,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:21:12" (2/3) ... [2018-10-27 00:21:13,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce336bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:21:13, skipping insertion in model container [2018-10-27 00:21:13,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:21:13" (3/3) ... [2018-10-27 00:21:13,628 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product19_true-unreach-call_false-termination.cil.c [2018-10-27 00:21:13,639 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:21:13,648 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:21:13,665 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:21:13,699 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:21:13,699 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:21:13,700 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:21:13,700 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:21:13,700 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:21:13,701 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:21:13,701 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:21:13,701 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:21:13,722 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2018-10-27 00:21:13,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-27 00:21:13,731 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:13,732 INFO L375 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] [2018-10-27 00:21:13,735 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:13,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:13,741 INFO L82 PathProgramCache]: Analyzing trace with hash 833993005, now seen corresponding path program 1 times [2018-10-27 00:21:13,744 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:13,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:13,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:13,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:13,798 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:13,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:14,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:21:14,028 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:21:14,029 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:21:14,030 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:21:14,035 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:21:14,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:21:14,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:21:14,053 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 2 states. [2018-10-27 00:21:14,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:21:14,098 INFO L93 Difference]: Finished difference Result 224 states and 279 transitions. [2018-10-27 00:21:14,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:21:14,099 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-10-27 00:21:14,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:21:14,112 INFO L225 Difference]: With dead ends: 224 [2018-10-27 00:21:14,112 INFO L226 Difference]: Without dead ends: 112 [2018-10-27 00:21:14,117 INFO L605 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 [2018-10-27 00:21:14,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2018-10-27 00:21:14,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2018-10-27 00:21:14,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2018-10-27 00:21:14,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 131 transitions. [2018-10-27 00:21:14,173 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 131 transitions. Word has length 46 [2018-10-27 00:21:14,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:21:14,174 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 131 transitions. [2018-10-27 00:21:14,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:21:14,174 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 131 transitions. [2018-10-27 00:21:14,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-27 00:21:14,177 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:14,177 INFO L375 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] [2018-10-27 00:21:14,177 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:14,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:14,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1117533332, now seen corresponding path program 1 times [2018-10-27 00:21:14,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:14,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:14,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:14,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:14,181 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:14,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:21:14,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:21:14,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:21:14,343 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:21:14,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:21:14,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:21:14,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:21:14,347 INFO L87 Difference]: Start difference. First operand 112 states and 131 transitions. Second operand 3 states. [2018-10-27 00:21:14,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:21:14,378 INFO L93 Difference]: Finished difference Result 165 states and 191 transitions. [2018-10-27 00:21:14,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:21:14,379 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-10-27 00:21:14,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:21:14,384 INFO L225 Difference]: With dead ends: 165 [2018-10-27 00:21:14,384 INFO L226 Difference]: Without dead ends: 102 [2018-10-27 00:21:14,385 INFO L605 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 [2018-10-27 00:21:14,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-10-27 00:21:14,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2018-10-27 00:21:14,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2018-10-27 00:21:14,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2018-10-27 00:21:14,410 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 48 [2018-10-27 00:21:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:21:14,411 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2018-10-27 00:21:14,411 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:21:14,411 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2018-10-27 00:21:14,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-27 00:21:14,412 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:14,413 INFO L375 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] [2018-10-27 00:21:14,413 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:14,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:14,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1114050225, now seen corresponding path program 1 times [2018-10-27 00:21:14,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:14,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:14,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:14,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:14,418 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:14,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:14,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:21:14,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:21:14,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 00:21:14,589 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:21:14,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 00:21:14,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 00:21:14,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 00:21:14,590 INFO L87 Difference]: Start difference. First operand 102 states and 118 transitions. Second operand 3 states. [2018-10-27 00:21:14,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:21:14,662 INFO L93 Difference]: Finished difference Result 233 states and 279 transitions. [2018-10-27 00:21:14,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 00:21:14,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-10-27 00:21:14,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:21:14,666 INFO L225 Difference]: With dead ends: 233 [2018-10-27 00:21:14,667 INFO L226 Difference]: Without dead ends: 155 [2018-10-27 00:21:14,668 INFO L605 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 [2018-10-27 00:21:14,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2018-10-27 00:21:14,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 151. [2018-10-27 00:21:14,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2018-10-27 00:21:14,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 180 transitions. [2018-10-27 00:21:14,689 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 180 transitions. Word has length 52 [2018-10-27 00:21:14,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:21:14,689 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 180 transitions. [2018-10-27 00:21:14,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 00:21:14,689 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 180 transitions. [2018-10-27 00:21:14,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-10-27 00:21:14,691 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:14,691 INFO L375 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] [2018-10-27 00:21:14,692 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:14,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:14,692 INFO L82 PathProgramCache]: Analyzing trace with hash 494795534, now seen corresponding path program 1 times [2018-10-27 00:21:14,692 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:14,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:14,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:14,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:14,694 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:14,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:21:14,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:21:14,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 00:21:14,983 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:21:14,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 00:21:14,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 00:21:14,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:21:14,984 INFO L87 Difference]: Start difference. First operand 151 states and 180 transitions. Second operand 6 states. [2018-10-27 00:21:15,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:21:15,916 INFO L93 Difference]: Finished difference Result 394 states and 489 transitions. [2018-10-27 00:21:15,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:21:15,917 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2018-10-27 00:21:15,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:21:15,920 INFO L225 Difference]: With dead ends: 394 [2018-10-27 00:21:15,920 INFO L226 Difference]: Without dead ends: 267 [2018-10-27 00:21:15,922 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:21:15,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2018-10-27 00:21:15,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 263. [2018-10-27 00:21:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2018-10-27 00:21:15,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 318 transitions. [2018-10-27 00:21:15,964 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 318 transitions. Word has length 58 [2018-10-27 00:21:15,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:21:15,965 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 318 transitions. [2018-10-27 00:21:15,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 00:21:15,965 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 318 transitions. [2018-10-27 00:21:15,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-10-27 00:21:15,967 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:21:15,968 INFO L375 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] [2018-10-27 00:21:15,968 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:21:15,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:21:15,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1006777138, now seen corresponding path program 1 times [2018-10-27 00:21:15,968 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:21:15,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:15,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:21:15,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:21:15,972 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:21:16,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:21:16,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:21:16,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:21:16,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:21:16,294 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:21:16,295 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:21:16,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:21:16,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:21:16,295 INFO L87 Difference]: Start difference. First operand 263 states and 318 transitions. Second operand 7 states. [2018-10-27 00:21:17,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:21:17,231 INFO L93 Difference]: Finished difference Result 441 states and 552 transitions. [2018-10-27 00:21:17,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:21:17,235 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 62 [2018-10-27 00:21:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:21:17,236 INFO L225 Difference]: With dead ends: 441 [2018-10-27 00:21:17,236 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:21:17,241 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-10-27 00:21:17,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:21:17,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:21:17,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:21:17,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:21:17,242 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2018-10-27 00:21:17,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:21:17,242 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:21:17,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:21:17,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:21:17,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:21:17,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:21:17,839 WARN L179 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 9 [2018-10-27 00:21:17,988 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-10-27 00:21:18,150 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 7 [2018-10-27 00:21:18,666 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 1 [2018-10-27 00:21:18,843 INFO L428 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 747 754) the Hoare annotation is: true [2018-10-27 00:21:18,843 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 747 754) no Hoare annotation was computed. [2018-10-27 00:21:18,843 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 747 754) no Hoare annotation was computed. [2018-10-27 00:21:18,843 INFO L421 ceAbstractionStarter]: At program point L733(line 733) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-10-27 00:21:18,843 INFO L425 ceAbstractionStarter]: For program point L733-1(lines 714 738) no Hoare annotation was computed. [2018-10-27 00:21:18,843 INFO L421 ceAbstractionStarter]: At program point L728(line 728) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0)) [2018-10-27 00:21:18,844 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 714 738) no Hoare annotation was computed. [2018-10-27 00:21:18,844 INFO L421 ceAbstractionStarter]: At program point L724(line 724) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0)) [2018-10-27 00:21:18,844 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 714 738) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-10-27 00:21:18,844 INFO L425 ceAbstractionStarter]: For program point L722(lines 722 730) no Hoare annotation was computed. [2018-10-27 00:21:18,844 INFO L421 ceAbstractionStarter]: At program point L720(line 720) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0)) [2018-10-27 00:21:18,844 INFO L425 ceAbstractionStarter]: For program point L720-1(line 720) no Hoare annotation was computed. [2018-10-27 00:21:18,844 INFO L425 ceAbstractionStarter]: For program point L718(lines 718 735) no Hoare annotation was computed. [2018-10-27 00:21:18,845 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 560 566) the Hoare annotation is: true [2018-10-27 00:21:18,845 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 560 566) no Hoare annotation was computed. [2018-10-27 00:21:18,845 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 706 712) no Hoare annotation was computed. [2018-10-27 00:21:18,845 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 706 712) the Hoare annotation is: true [2018-10-27 00:21:18,845 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 567 575) no Hoare annotation was computed. [2018-10-27 00:21:18,845 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 567 575) the Hoare annotation is: true [2018-10-27 00:21:18,845 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 567 575) no Hoare annotation was computed. [2018-10-27 00:21:18,850 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 846 911) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,850 INFO L421 ceAbstractionStarter]: At program point L894(line 894) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) (= test_~splverifierCounter~0 0)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,851 INFO L425 ceAbstractionStarter]: For program point L892(lines 892 898) no Hoare annotation was computed. [2018-10-27 00:21:18,851 INFO L421 ceAbstractionStarter]: At program point L892-1(lines 886 899) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) (= test_~splverifierCounter~0 0)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,851 INFO L425 ceAbstractionStarter]: For program point L857(lines 856 903) no Hoare annotation was computed. [2018-10-27 00:21:18,851 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 846 911) no Hoare annotation was computed. [2018-10-27 00:21:18,851 INFO L425 ceAbstractionStarter]: For program point L886(lines 886 899) no Hoare annotation was computed. [2018-10-27 00:21:18,851 INFO L421 ceAbstractionStarter]: At program point L878(line 878) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) (= test_~splverifierCounter~0 0)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,851 INFO L425 ceAbstractionStarter]: For program point L876(lines 876 882) no Hoare annotation was computed. [2018-10-27 00:21:18,852 INFO L425 ceAbstractionStarter]: For program point L876-1(lines 876 882) no Hoare annotation was computed. [2018-10-27 00:21:18,852 INFO L421 ceAbstractionStarter]: At program point L901(lines 856 903) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) (= test_~splverifierCounter~0 0)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,852 INFO L421 ceAbstractionStarter]: At program point L868(line 868) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~pumpRunning~0)| ~pumpRunning~0) (= test_~splverifierCounter~0 0)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,852 INFO L425 ceAbstractionStarter]: For program point L866(lines 866 872) no Hoare annotation was computed. [2018-10-27 00:21:18,852 INFO L425 ceAbstractionStarter]: For program point L866-1(lines 866 872) no Hoare annotation was computed. [2018-10-27 00:21:18,852 INFO L425 ceAbstractionStarter]: For program point L858(lines 858 862) no Hoare annotation was computed. [2018-10-27 00:21:18,852 INFO L425 ceAbstractionStarter]: For program point L856-1(lines 856 903) no Hoare annotation was computed. [2018-10-27 00:21:18,853 INFO L421 ceAbstractionStarter]: At program point L904(lines 855 905) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,853 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 846 911) no Hoare annotation was computed. [2018-10-27 00:21:18,853 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 652 674) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,853 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 652 674) no Hoare annotation was computed. [2018-10-27 00:21:18,853 INFO L421 ceAbstractionStarter]: At program point L664(line 664) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,853 INFO L421 ceAbstractionStarter]: At program point L664-1(line 664) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,853 INFO L425 ceAbstractionStarter]: For program point L662(lines 662 669) no Hoare annotation was computed. [2018-10-27 00:21:18,858 INFO L425 ceAbstractionStarter]: For program point L662-1(lines 662 669) no Hoare annotation was computed. [2018-10-27 00:21:18,858 INFO L425 ceAbstractionStarter]: For program point L660(line 660) no Hoare annotation was computed. [2018-10-27 00:21:18,858 INFO L421 ceAbstractionStarter]: At program point L659(line 659) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,858 INFO L421 ceAbstractionStarter]: At program point L658(line 658) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,858 INFO L421 ceAbstractionStarter]: At program point L658-1(line 658) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,858 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 652 674) no Hoare annotation was computed. [2018-10-27 00:21:18,859 INFO L425 ceAbstractionStarter]: For program point stopSystemEXIT(lines 830 844) no Hoare annotation was computed. [2018-10-27 00:21:18,859 INFO L421 ceAbstractionStarter]: At program point stopSystemENTRY(lines 830 844) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (= |old(~systemActive~0)| 0) (not (= ~systemActive~0 0))) (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-10-27 00:21:18,859 INFO L425 ceAbstractionStarter]: For program point stopSystemFINAL(lines 830 844) no Hoare annotation was computed. [2018-10-27 00:21:18,859 INFO L421 ceAbstractionStarter]: At program point L836(line 836) the Hoare annotation is: (not (= 0 |old(~pumpRunning~0)|)) [2018-10-27 00:21:18,859 INFO L425 ceAbstractionStarter]: For program point L834(lines 834 840) no Hoare annotation was computed. [2018-10-27 00:21:18,859 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 163 171) no Hoare annotation was computed. [2018-10-27 00:21:18,859 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 163 171) the Hoare annotation is: true [2018-10-27 00:21:18,859 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 163 171) no Hoare annotation was computed. [2018-10-27 00:21:18,859 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 766 774) no Hoare annotation was computed. [2018-10-27 00:21:18,860 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 766 774) the Hoare annotation is: true [2018-10-27 00:21:18,860 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 766 774) no Hoare annotation was computed. [2018-10-27 00:21:18,860 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:21:18,860 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~pumpRunning~0)| ~pumpRunning~0) [2018-10-27 00:21:18,860 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:21:18,860 INFO L425 ceAbstractionStarter]: For program point L818-1(line 818) no Hoare annotation was computed. [2018-10-27 00:21:18,860 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 811 829) the Hoare annotation is: true [2018-10-27 00:21:18,860 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 811 829) no Hoare annotation was computed. [2018-10-27 00:21:18,860 INFO L425 ceAbstractionStarter]: For program point L820(lines 820 824) no Hoare annotation was computed. [2018-10-27 00:21:18,861 INFO L428 ceAbstractionStarter]: At program point L818(line 818) the Hoare annotation is: true [2018-10-27 00:21:18,861 INFO L425 ceAbstractionStarter]: For program point L820-2(lines 820 824) no Hoare annotation was computed. [2018-10-27 00:21:18,861 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 811 829) no Hoare annotation was computed. [2018-10-27 00:21:18,861 INFO L425 ceAbstractionStarter]: For program point L114-1(lines 110 121) no Hoare annotation was computed. [2018-10-27 00:21:18,861 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 110 121) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (not (= |old(~methaneLevelCritical~0)| 0)) (= 0 ~methaneLevelCritical~0)) [2018-10-27 00:21:18,861 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 110 121) no Hoare annotation was computed. [2018-10-27 00:21:18,861 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 122 130) the Hoare annotation is: true [2018-10-27 00:21:18,861 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 122 130) no Hoare annotation was computed. [2018-10-27 00:21:18,861 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 122 130) no Hoare annotation was computed. [2018-10-27 00:21:18,861 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 579 608) no Hoare annotation was computed. [2018-10-27 00:21:18,862 INFO L425 ceAbstractionStarter]: For program point L593(lines 593 597) no Hoare annotation was computed. [2018-10-27 00:21:18,863 INFO L428 ceAbstractionStarter]: At program point L593-1(lines 593 597) the Hoare annotation is: true [2018-10-27 00:21:18,863 INFO L425 ceAbstractionStarter]: For program point L589-1(lines 589 603) no Hoare annotation was computed. [2018-10-27 00:21:18,863 INFO L428 ceAbstractionStarter]: At program point L589-3(lines 589 603) the Hoare annotation is: true [2018-10-27 00:21:18,863 INFO L428 ceAbstractionStarter]: At program point L585(line 585) the Hoare annotation is: true [2018-10-27 00:21:18,863 INFO L425 ceAbstractionStarter]: For program point L585-1(line 585) no Hoare annotation was computed. [2018-10-27 00:21:18,863 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 579 608) the Hoare annotation is: true [2018-10-27 00:21:18,863 INFO L428 ceAbstractionStarter]: At program point L604(lines 579 608) the Hoare annotation is: true [2018-10-27 00:21:18,863 INFO L425 ceAbstractionStarter]: For program point L600(line 600) no Hoare annotation was computed. [2018-10-27 00:21:18,863 INFO L425 ceAbstractionStarter]: For program point L590(line 590) no Hoare annotation was computed. [2018-10-27 00:21:18,864 INFO L421 ceAbstractionStarter]: At program point L695(line 695) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-10-27 00:21:18,864 INFO L421 ceAbstractionStarter]: At program point L693(lines 693 699) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-10-27 00:21:18,864 INFO L421 ceAbstractionStarter]: At program point L688(line 688) the Hoare annotation is: (not (= 0 |old(~pumpRunning~0)|)) [2018-10-27 00:21:18,864 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 682 705) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-10-27 00:21:18,864 INFO L425 ceAbstractionStarter]: For program point L686(lines 685 704) no Hoare annotation was computed. [2018-10-27 00:21:18,864 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 682 705) no Hoare annotation was computed. [2018-10-27 00:21:18,864 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 682 705) no Hoare annotation was computed. [2018-10-27 00:21:18,865 INFO L428 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 86 97) the Hoare annotation is: true [2018-10-27 00:21:18,865 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 86 97) no Hoare annotation was computed. [2018-10-27 00:21:18,865 INFO L425 ceAbstractionStarter]: For program point L90-1(lines 86 97) no Hoare annotation was computed. [2018-10-27 00:21:18,865 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 553 559) no Hoare annotation was computed. [2018-10-27 00:21:18,865 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 553 559) the Hoare annotation is: true [2018-10-27 00:21:18,865 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:21:18,865 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (not (= ~systemActive~0 0))) [2018-10-27 00:21:18,865 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:21:18,865 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:21:18,865 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 634 640) no Hoare annotation was computed. [2018-10-27 00:21:18,874 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 634 640) the Hoare annotation is: true [2018-10-27 00:21:18,874 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 98 109) no Hoare annotation was computed. [2018-10-27 00:21:18,874 INFO L425 ceAbstractionStarter]: For program point L102-1(lines 98 109) no Hoare annotation was computed. [2018-10-27 00:21:18,874 INFO L428 ceAbstractionStarter]: At program point waterRiseENTRY(lines 98 109) the Hoare annotation is: true [2018-10-27 00:21:18,874 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 69 76) no Hoare annotation was computed. [2018-10-27 00:21:18,875 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 73) no Hoare annotation was computed. [2018-10-27 00:21:18,875 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 69 76) the Hoare annotation is: true [2018-10-27 00:21:18,875 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 69 76) no Hoare annotation was computed. [2018-10-27 00:21:18,875 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 642 651) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-27 00:21:18,875 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 642 651) no Hoare annotation was computed. [2018-10-27 00:21:18,875 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 642 651) no Hoare annotation was computed. [2018-10-27 00:21:18,875 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 43 67) the Hoare annotation is: true [2018-10-27 00:21:18,875 INFO L421 ceAbstractionStarter]: At program point L57(line 57) the Hoare annotation is: (not (= 0 ~pumpRunning~0)) [2018-10-27 00:21:18,876 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 43 67) no Hoare annotation was computed. [2018-10-27 00:21:18,876 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 61) no Hoare annotation was computed. [2018-10-27 00:21:18,876 INFO L421 ceAbstractionStarter]: At program point L53(line 53) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (not (= ~methaneLevelCritical~0 0))) [2018-10-27 00:21:18,876 INFO L425 ceAbstractionStarter]: For program point L53-1(line 53) no Hoare annotation was computed. [2018-10-27 00:21:18,876 INFO L425 ceAbstractionStarter]: For program point L51(lines 51 64) no Hoare annotation was computed. [2018-10-27 00:21:18,876 INFO L425 ceAbstractionStarter]: For program point L51-1(lines 43 67) no Hoare annotation was computed. [2018-10-27 00:21:18,876 INFO L428 ceAbstractionStarter]: At program point L49(line 49) the Hoare annotation is: true [2018-10-27 00:21:18,876 INFO L425 ceAbstractionStarter]: For program point L49-1(line 49) no Hoare annotation was computed. [2018-10-27 00:21:18,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:21:18 BoogieIcfgContainer [2018-10-27 00:21:18,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:21:18,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:21:18,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:21:18,896 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:21:18,896 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:21:13" (3/4) ... [2018-10-27 00:21:18,900 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:21:18,908 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-10-27 00:21:18,908 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-10-27 00:21:18,908 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-10-27 00:21:18,908 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-10-27 00:21:18,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-10-27 00:21:18,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-10-27 00:21:18,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:21:18,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-10-27 00:21:18,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-10-27 00:21:18,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-10-27 00:21:18,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:21:18,909 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-10-27 00:21:18,912 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-10-27 00:21:18,912 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-10-27 00:21:18,912 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-10-27 00:21:18,912 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-10-27 00:21:18,912 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-10-27 00:21:18,912 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-10-27 00:21:18,913 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-10-27 00:21:18,913 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-10-27 00:21:18,913 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-10-27 00:21:18,913 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-10-27 00:21:18,913 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-10-27 00:21:18,924 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 138 nodes and edges [2018-10-27 00:21:18,924 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2018-10-27 00:21:18,925 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2018-10-27 00:21:18,956 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || (\old(pumpRunning) == pumpRunning && splverifierCounter == 0)) || \old(systemActive) == 0) || !(\old(methaneLevelCritical) == 0) [2018-10-27 00:21:18,956 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || !(\old(methaneLevelCritical) == 0) [2018-10-27 00:21:19,015 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4a4fcad6-4e44-4b5d-be48-10dcad47b038/bin-2019/utaipan/witness.graphml [2018-10-27 00:21:19,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:21:19,016 INFO L168 Benchmark]: Toolchain (without parser) took 7411.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 954.5 MB in the beginning and 1.0 GB in the end (delta: -48.1 MB). Peak memory consumption was 109.2 MB. Max. memory is 11.5 GB. [2018-10-27 00:21:19,017 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:21:19,017 INFO L168 Benchmark]: CACSL2BoogieTranslator took 459.47 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 930.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:21:19,017 INFO L168 Benchmark]: Boogie Procedure Inliner took 152.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 930.3 MB in the beginning and 1.2 GB in the end (delta: -222.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. [2018-10-27 00:21:19,017 INFO L168 Benchmark]: Boogie Preprocessor took 62.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:21:19,018 INFO L168 Benchmark]: RCFGBuilder took 1338.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Peak memory consumption was 82.8 MB. Max. memory is 11.5 GB. [2018-10-27 00:21:19,018 INFO L168 Benchmark]: TraceAbstraction took 5274.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 11.5 GB. [2018-10-27 00:21:19,018 INFO L168 Benchmark]: Witness Printer took 120.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:21:19,020 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 459.47 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 930.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 152.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 930.3 MB in the beginning and 1.2 GB in the end (delta: -222.1 MB). Peak memory consumption was 19.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 62.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1338.03 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 82.8 MB). Peak memory consumption was 82.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5274.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 11.5 GB. * Witness Printer took 120.86 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 73]: 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: 579]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 855]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 856]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || (\old(pumpRunning) == pumpRunning && splverifierCounter == 0)) || \old(systemActive) == 0) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 589]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 24 procedures, 125 locations, 1 error locations. SAFE Result, 5.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 1.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 600 SDtfs, 256 SDslu, 714 SDs, 0 SdLazy, 224 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 52 LocationsWithAnnotation, 317 PreInvPairs, 348 NumberOfFragments, 456 HoareAnnotationTreeSize, 317 FomulaSimplifications, 252 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 52 FomulaSimplificationsInter, 1093 FormulaSimplificationTreeSizeReductionInter, 1.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 266 NumberOfCodeBlocks, 266 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 261 ConstructedInterpolants, 0 QuantifiedInterpolants, 26912 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...