./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/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 bf50661cace84e24af5f399094bd98fed0ff7444 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 17:47:23,946 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 17:47:23,947 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 17:47:23,953 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 17:47:23,953 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 17:47:23,954 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 17:47:23,955 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 17:47:23,956 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 17:47:23,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 17:47:23,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 17:47:23,957 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 17:47:23,957 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 17:47:23,958 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 17:47:23,958 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 17:47:23,959 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 17:47:23,959 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 17:47:23,960 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 17:47:23,961 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 17:47:23,962 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 17:47:23,963 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 17:47:23,963 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 17:47:23,964 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 17:47:23,965 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 17:47:23,965 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 17:47:23,965 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 17:47:23,966 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 17:47:23,966 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 17:47:23,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 17:47:23,967 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 17:47:23,968 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 17:47:23,968 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 17:47:23,968 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 17:47:23,968 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 17:47:23,968 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 17:47:23,969 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 17:47:23,969 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 17:47:23,969 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 17:47:23,977 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 17:47:23,977 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 17:47:23,977 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 17:47:23,977 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 17:47:23,978 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 17:47:23,978 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 17:47:23,978 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 17:47:23,978 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 17:47:23,978 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 17:47:23,978 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 17:47:23,978 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 17:47:23,978 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 17:47:23,979 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 17:47:23,979 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 17:47:23,979 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 17:47:23,979 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 17:47:23,979 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 17:47:23,979 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 17:47:23,980 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 17:47:23,980 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 17:47:23,980 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 17:47:23,980 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 17:47:23,980 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 17:47:23,980 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 17:47:23,980 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 17:47:23,980 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 17:47:23,980 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 17:47:23,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 17:47:23,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 17:47:23,981 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 17:47:23,981 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 17:47:23,981 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 17:47:23,981 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 17:47:23,981 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 17:47:23,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 17:47:23,981 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 17:47:23,982 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_89d04dd0-3292-4b8a-95f6-230fbafc53a4/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 -> bf50661cace84e24af5f399094bd98fed0ff7444 [2018-12-02 17:47:23,999 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 17:47:24,006 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 17:47:24,008 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 17:47:24,009 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 17:47:24,009 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 17:47:24,009 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c [2018-12-02 17:47:24,043 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/data/6098146f9/8afc80ca8283458bb52f5e77ab39f370/FLAGacbccda59 [2018-12-02 17:47:24,446 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 17:47:24,446 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/sv-benchmarks/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c [2018-12-02 17:47:24,453 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/data/6098146f9/8afc80ca8283458bb52f5e77ab39f370/FLAGacbccda59 [2018-12-02 17:47:24,461 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/data/6098146f9/8afc80ca8283458bb52f5e77ab39f370 [2018-12-02 17:47:24,463 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 17:47:24,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 17:47:24,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 17:47:24,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 17:47:24,466 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 17:47:24,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d622ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24, skipping insertion in model container [2018-12-02 17:47:24,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 17:47:24,498 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 17:47:24,662 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:47:24,669 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 17:47:24,750 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 17:47:24,767 INFO L195 MainTranslator]: Completed translation [2018-12-02 17:47:24,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24 WrapperNode [2018-12-02 17:47:24,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 17:47:24,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 17:47:24,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 17:47:24,768 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 17:47:24,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 17:47:24,788 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 17:47:24,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 17:47:24,788 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 17:47:24,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,796 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (1/1) ... [2018-12-02 17:47:24,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 17:47:24,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 17:47:24,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 17:47:24,810 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 17:47:24,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/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 [2018-12-02 17:47:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 17:47:24,842 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 17:47:24,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 17:47:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 17:47:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 17:47:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 17:47:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 17:47:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 17:47:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 17:47:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 17:47:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 17:47:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 17:47:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 17:47:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 17:47:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 17:47:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 17:47:24,843 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 17:47:24,843 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 17:47:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-02 17:47:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 17:47:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 17:47:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 17:47:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 17:47:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 17:47:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 17:47:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 17:47:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 17:47:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 17:47:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 17:47:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 17:47:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 17:47:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 17:47:24,844 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 17:47:24,844 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 17:47:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 17:47:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 17:47:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 17:47:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 17:47:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 17:47:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 17:47:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 17:47:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 17:47:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 17:47:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 17:47:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 17:47:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 17:47:24,845 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 17:47:24,845 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 17:47:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 17:47:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 17:47:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 17:47:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 17:47:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 17:47:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 17:47:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 17:47:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 17:47:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 17:47:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 17:47:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 17:47:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 17:47:24,846 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-02 17:47:24,846 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-02 17:47:25,159 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 17:47:25,159 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 17:47:25,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:47:25 BoogieIcfgContainer [2018-12-02 17:47:25,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 17:47:25,160 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 17:47:25,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 17:47:25,163 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 17:47:25,163 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:47:24" (1/3) ... [2018-12-02 17:47:25,163 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194121fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:47:25, skipping insertion in model container [2018-12-02 17:47:25,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:47:24" (2/3) ... [2018-12-02 17:47:25,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194121fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:47:25, skipping insertion in model container [2018-12-02 17:47:25,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:47:25" (3/3) ... [2018-12-02 17:47:25,165 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61_true-unreach-call_false-termination.cil.c [2018-12-02 17:47:25,171 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 17:47:25,177 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 17:47:25,186 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 17:47:25,207 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 17:47:25,207 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 17:47:25,207 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 17:47:25,207 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 17:47:25,207 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 17:47:25,207 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 17:47:25,207 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 17:47:25,207 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 17:47:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2018-12-02 17:47:25,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 17:47:25,226 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:25,227 INFO L402 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] [2018-12-02 17:47:25,228 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:25,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:25,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1498738476, now seen corresponding path program 1 times [2018-12-02 17:47:25,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:25,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:25,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:25,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:25,261 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:25,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:47:25,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:47:25,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 17:47:25,375 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:25,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 17:47:25,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 17:47:25,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 17:47:25,387 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2018-12-02 17:47:25,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:25,411 INFO L93 Difference]: Finished difference Result 300 states and 375 transitions. [2018-12-02 17:47:25,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 17:47:25,412 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 17:47:25,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:25,418 INFO L225 Difference]: With dead ends: 300 [2018-12-02 17:47:25,418 INFO L226 Difference]: Without dead ends: 150 [2018-12-02 17:47:25,421 INFO L631 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 [2018-12-02 17:47:25,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-12-02 17:47:25,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-12-02 17:47:25,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-12-02 17:47:25,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 179 transitions. [2018-12-02 17:47:25,452 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 179 transitions. Word has length 46 [2018-12-02 17:47:25,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:25,452 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 179 transitions. [2018-12-02 17:47:25,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 17:47:25,452 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 179 transitions. [2018-12-02 17:47:25,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 17:47:25,454 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:25,454 INFO L402 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] [2018-12-02 17:47:25,454 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:25,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:25,455 INFO L82 PathProgramCache]: Analyzing trace with hash -1709760892, now seen corresponding path program 1 times [2018-12-02 17:47:25,455 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:25,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:25,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:25,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:25,456 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:25,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:47:25,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:47:25,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 17:47:25,505 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:25,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 17:47:25,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 17:47:25,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 17:47:25,506 INFO L87 Difference]: Start difference. First operand 150 states and 179 transitions. Second operand 3 states. [2018-12-02 17:47:25,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:25,520 INFO L93 Difference]: Finished difference Result 249 states and 297 transitions. [2018-12-02 17:47:25,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 17:47:25,520 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 17:47:25,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:25,521 INFO L225 Difference]: With dead ends: 249 [2018-12-02 17:47:25,521 INFO L226 Difference]: Without dead ends: 141 [2018-12-02 17:47:25,522 INFO L631 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 [2018-12-02 17:47:25,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-12-02 17:47:25,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-12-02 17:47:25,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-12-02 17:47:25,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 167 transitions. [2018-12-02 17:47:25,530 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 167 transitions. Word has length 47 [2018-12-02 17:47:25,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:25,530 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 167 transitions. [2018-12-02 17:47:25,530 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 17:47:25,530 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 167 transitions. [2018-12-02 17:47:25,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 17:47:25,531 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:25,531 INFO L402 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] [2018-12-02 17:47:25,531 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:25,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:25,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1598085398, now seen corresponding path program 1 times [2018-12-02 17:47:25,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:25,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:25,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:25,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:25,532 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:25,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:47:25,595 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:47:25,595 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 17:47:25,595 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:25,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 17:47:25,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 17:47:25,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 17:47:25,596 INFO L87 Difference]: Start difference. First operand 141 states and 167 transitions. Second operand 7 states. [2018-12-02 17:47:25,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:25,777 INFO L93 Difference]: Finished difference Result 258 states and 311 transitions. [2018-12-02 17:47:25,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 17:47:25,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 17:47:25,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:25,779 INFO L225 Difference]: With dead ends: 258 [2018-12-02 17:47:25,779 INFO L226 Difference]: Without dead ends: 141 [2018-12-02 17:47:25,779 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 17:47:25,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-12-02 17:47:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-12-02 17:47:25,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-12-02 17:47:25,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 166 transitions. [2018-12-02 17:47:25,787 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 166 transitions. Word has length 51 [2018-12-02 17:47:25,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:25,788 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 166 transitions. [2018-12-02 17:47:25,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 17:47:25,788 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 166 transitions. [2018-12-02 17:47:25,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-02 17:47:25,789 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:25,789 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:47:25,790 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:25,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:25,790 INFO L82 PathProgramCache]: Analyzing trace with hash -1284631829, now seen corresponding path program 1 times [2018-12-02 17:47:25,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:25,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:25,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:25,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:25,791 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:25,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:25,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:47:25,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:47:25,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 17:47:25,850 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:25,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 17:47:25,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 17:47:25,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 17:47:25,851 INFO L87 Difference]: Start difference. First operand 141 states and 166 transitions. Second operand 5 states. [2018-12-02 17:47:26,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:26,208 INFO L93 Difference]: Finished difference Result 367 states and 446 transitions. [2018-12-02 17:47:26,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 17:47:26,209 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2018-12-02 17:47:26,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:26,211 INFO L225 Difference]: With dead ends: 367 [2018-12-02 17:47:26,211 INFO L226 Difference]: Without dead ends: 250 [2018-12-02 17:47:26,212 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 17:47:26,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-12-02 17:47:26,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 232. [2018-12-02 17:47:26,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-12-02 17:47:26,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 264 transitions. [2018-12-02 17:47:26,234 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 264 transitions. Word has length 69 [2018-12-02 17:47:26,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:26,235 INFO L480 AbstractCegarLoop]: Abstraction has 232 states and 264 transitions. [2018-12-02 17:47:26,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 17:47:26,235 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 264 transitions. [2018-12-02 17:47:26,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 17:47:26,237 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:26,237 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:47:26,237 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:26,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:26,237 INFO L82 PathProgramCache]: Analyzing trace with hash -65271002, now seen corresponding path program 1 times [2018-12-02 17:47:26,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:26,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:26,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:26,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:26,238 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:26,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:47:26,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:47:26,331 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 17:47:26,331 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:26,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 17:47:26,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 17:47:26,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 17:47:26,332 INFO L87 Difference]: Start difference. First operand 232 states and 264 transitions. Second operand 8 states. [2018-12-02 17:47:26,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:26,357 INFO L93 Difference]: Finished difference Result 447 states and 523 transitions. [2018-12-02 17:47:26,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 17:47:26,358 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2018-12-02 17:47:26,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:26,360 INFO L225 Difference]: With dead ends: 447 [2018-12-02 17:47:26,361 INFO L226 Difference]: Without dead ends: 239 [2018-12-02 17:47:26,361 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 17:47:26,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-12-02 17:47:26,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 236. [2018-12-02 17:47:26,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2018-12-02 17:47:26,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 268 transitions. [2018-12-02 17:47:26,380 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 268 transitions. Word has length 83 [2018-12-02 17:47:26,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:26,380 INFO L480 AbstractCegarLoop]: Abstraction has 236 states and 268 transitions. [2018-12-02 17:47:26,380 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 17:47:26,380 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 268 transitions. [2018-12-02 17:47:26,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 17:47:26,381 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:26,381 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:47:26,381 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:26,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:26,382 INFO L82 PathProgramCache]: Analyzing trace with hash -766870876, now seen corresponding path program 1 times [2018-12-02 17:47:26,382 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:26,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:26,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:26,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:26,383 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:26,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:26,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:47:26,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:47:26,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 17:47:26,456 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:26,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 17:47:26,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 17:47:26,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 17:47:26,457 INFO L87 Difference]: Start difference. First operand 236 states and 268 transitions. Second operand 6 states. [2018-12-02 17:47:26,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:26,587 INFO L93 Difference]: Finished difference Result 645 states and 754 transitions. [2018-12-02 17:47:26,587 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 17:47:26,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-12-02 17:47:26,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:26,589 INFO L225 Difference]: With dead ends: 645 [2018-12-02 17:47:26,590 INFO L226 Difference]: Without dead ends: 433 [2018-12-02 17:47:26,590 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-02 17:47:26,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2018-12-02 17:47:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 427. [2018-12-02 17:47:26,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2018-12-02 17:47:26,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 486 transitions. [2018-12-02 17:47:26,616 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 486 transitions. Word has length 83 [2018-12-02 17:47:26,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:26,617 INFO L480 AbstractCegarLoop]: Abstraction has 427 states and 486 transitions. [2018-12-02 17:47:26,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 17:47:26,617 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 486 transitions. [2018-12-02 17:47:26,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-12-02 17:47:26,618 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:26,618 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:47:26,619 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:26,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:26,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1867403624, now seen corresponding path program 1 times [2018-12-02 17:47:26,619 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:26,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:26,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:26,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:26,620 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:26,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:47:26,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:47:26,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 17:47:26,685 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:26,685 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 17:47:26,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 17:47:26,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 17:47:26,686 INFO L87 Difference]: Start difference. First operand 427 states and 486 transitions. Second operand 7 states. [2018-12-02 17:47:27,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:27,001 INFO L93 Difference]: Finished difference Result 460 states and 536 transitions. [2018-12-02 17:47:27,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 17:47:27,002 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2018-12-02 17:47:27,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:27,003 INFO L225 Difference]: With dead ends: 460 [2018-12-02 17:47:27,004 INFO L226 Difference]: Without dead ends: 457 [2018-12-02 17:47:27,004 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-02 17:47:27,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2018-12-02 17:47:27,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 427. [2018-12-02 17:47:27,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2018-12-02 17:47:27,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 485 transitions. [2018-12-02 17:47:27,020 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 485 transitions. Word has length 87 [2018-12-02 17:47:27,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:27,021 INFO L480 AbstractCegarLoop]: Abstraction has 427 states and 485 transitions. [2018-12-02 17:47:27,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 17:47:27,021 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 485 transitions. [2018-12-02 17:47:27,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-12-02 17:47:27,022 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:27,022 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:47:27,022 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:27,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:27,023 INFO L82 PathProgramCache]: Analyzing trace with hash 157461945, now seen corresponding path program 1 times [2018-12-02 17:47:27,023 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:27,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:27,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:27,023 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:27,023 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:27,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 17:47:27,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:47:27,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 17:47:27,082 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:27,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 17:47:27,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 17:47:27,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 17:47:27,082 INFO L87 Difference]: Start difference. First operand 427 states and 485 transitions. Second operand 6 states. [2018-12-02 17:47:27,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:27,127 INFO L93 Difference]: Finished difference Result 844 states and 982 transitions. [2018-12-02 17:47:27,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 17:47:27,128 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2018-12-02 17:47:27,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:27,130 INFO L225 Difference]: With dead ends: 844 [2018-12-02 17:47:27,130 INFO L226 Difference]: Without dead ends: 441 [2018-12-02 17:47:27,131 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 17:47:27,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2018-12-02 17:47:27,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 437. [2018-12-02 17:47:27,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2018-12-02 17:47:27,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 495 transitions. [2018-12-02 17:47:27,147 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 495 transitions. Word has length 103 [2018-12-02 17:47:27,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:27,147 INFO L480 AbstractCegarLoop]: Abstraction has 437 states and 495 transitions. [2018-12-02 17:47:27,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 17:47:27,147 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 495 transitions. [2018-12-02 17:47:27,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-12-02 17:47:27,148 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:27,148 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:47:27,148 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:27,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:27,149 INFO L82 PathProgramCache]: Analyzing trace with hash 937564156, now seen corresponding path program 1 times [2018-12-02 17:47:27,149 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:27,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:27,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:27,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:27,149 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:27,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 17:47:27,199 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 17:47:27,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 17:47:27,199 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:27,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 17:47:27,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 17:47:27,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:47:27,200 INFO L87 Difference]: Start difference. First operand 437 states and 495 transitions. Second operand 4 states. [2018-12-02 17:47:27,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:27,339 INFO L93 Difference]: Finished difference Result 1297 states and 1546 transitions. [2018-12-02 17:47:27,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 17:47:27,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2018-12-02 17:47:27,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:27,342 INFO L225 Difference]: With dead ends: 1297 [2018-12-02 17:47:27,343 INFO L226 Difference]: Without dead ends: 884 [2018-12-02 17:47:27,344 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 17:47:27,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2018-12-02 17:47:27,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 869. [2018-12-02 17:47:27,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2018-12-02 17:47:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1015 transitions. [2018-12-02 17:47:27,372 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1015 transitions. Word has length 103 [2018-12-02 17:47:27,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:27,372 INFO L480 AbstractCegarLoop]: Abstraction has 869 states and 1015 transitions. [2018-12-02 17:47:27,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 17:47:27,372 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1015 transitions. [2018-12-02 17:47:27,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-12-02 17:47:27,373 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:27,373 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:47:27,374 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:27,374 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:27,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1484540002, now seen corresponding path program 1 times [2018-12-02 17:47:27,374 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:27,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:27,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:27,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:27,374 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:27,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 17:47:27,463 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:47:27,463 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 17:47:27,463 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2018-12-02 17:47:27,465 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [59], [74], [77], [78], [82], [83], [85], [94], [98], [102], [105], [110], [113], [118], [121], [136], [137], [140], [141], [142], [144], [149], [152], [153], [155], [160], [162], [163], [168], [170], [176], [180], [213], [214], [222], [226], [229], [231], [234], [244], [247], [251], [252], [255], [257], [260], [262], [265], [274], [275], [276], [277], [278], [279], [280], [281], [282], [290], [291], [294], [296], [297], [304], [305], [306], [307], [308], [309], [310], [314], [315], [316], [317], [318], [319], [322], [323], [324], [330], [331], [332], [334], [335], [336], [337], [342], [343], [344], [345], [346] [2018-12-02 17:47:27,488 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 17:47:27,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 17:47:27,798 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 17:47:27,798 INFO L272 AbstractInterpreter]: Visited 105 different actions 107 times. Never merged. Never widened. Performed 3366 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3366 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 17:47:27,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:27,804 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 17:47:27,804 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:47:27,804 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 17:47:27,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:27,812 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 17:47:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:27,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 17:47:28,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 17:47:28,034 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 17:47:28,621 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 17:47:28,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 17:47:28,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-02 17:47:28,637 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:28,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 17:47:28,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 17:47:28,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 17:47:28,638 INFO L87 Difference]: Start difference. First operand 869 states and 1015 transitions. Second operand 8 states. [2018-12-02 17:47:28,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:28,838 INFO L93 Difference]: Finished difference Result 1684 states and 1979 transitions. [2018-12-02 17:47:28,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 17:47:28,838 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 107 [2018-12-02 17:47:28,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:28,841 INFO L225 Difference]: With dead ends: 1684 [2018-12-02 17:47:28,841 INFO L226 Difference]: Without dead ends: 839 [2018-12-02 17:47:28,842 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 196 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 17:47:28,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2018-12-02 17:47:28,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 839. [2018-12-02 17:47:28,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2018-12-02 17:47:28,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 966 transitions. [2018-12-02 17:47:28,865 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 966 transitions. Word has length 107 [2018-12-02 17:47:28,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:28,865 INFO L480 AbstractCegarLoop]: Abstraction has 839 states and 966 transitions. [2018-12-02 17:47:28,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 17:47:28,865 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 966 transitions. [2018-12-02 17:47:28,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-12-02 17:47:28,867 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 17:47:28,868 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 17:47:28,868 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 17:47:28,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:28,868 INFO L82 PathProgramCache]: Analyzing trace with hash 98941654, now seen corresponding path program 1 times [2018-12-02 17:47:28,868 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 17:47:28,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:28,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:28,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 17:47:28,869 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 17:47:28,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-02 17:47:28,965 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:47:28,965 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 17:47:28,966 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-12-02 17:47:28,966 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [29], [33], [36], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [59], [62], [64], [70], [74], [77], [78], [82], [83], [84], [85], [94], [98], [102], [105], [108], [110], [113], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [155], [160], [162], [163], [168], [170], [173], [176], [180], [186], [213], [214], [217], [221], [222], [226], [229], [231], [234], [241], [244], [247], [251], [252], [255], [257], [260], [262], [265], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [282], [284], [285], [288], [289], [290], [291], [292], [293], [294], [296], [297], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341], [342], [343], [344], [345], [346] [2018-12-02 17:47:28,969 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 17:47:28,969 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 17:47:30,519 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 17:47:30,519 INFO L272 AbstractInterpreter]: Visited 144 different actions 1305 times. Merged at 17 different actions 76 times. Never widened. Performed 41846 root evaluator evaluations with a maximum evaluation depth of 5. Performed 41846 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 21 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-02 17:47:30,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 17:47:30,524 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 17:47:30,524 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 17:47:30,524 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 17:47:30,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 17:47:30,531 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 17:47:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 17:47:30,600 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 17:47:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-02 17:47:30,686 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 17:47:30,950 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-02 17:47:30,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 17:47:30,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-02 17:47:30,972 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 17:47:30,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 17:47:30,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 17:47:30,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 17:47:30,973 INFO L87 Difference]: Start difference. First operand 839 states and 966 transitions. Second operand 8 states. [2018-12-02 17:47:31,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 17:47:31,167 INFO L93 Difference]: Finished difference Result 1403 states and 1640 transitions. [2018-12-02 17:47:31,167 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 17:47:31,167 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2018-12-02 17:47:31,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 17:47:31,168 INFO L225 Difference]: With dead ends: 1403 [2018-12-02 17:47:31,168 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 17:47:31,169 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 337 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-02 17:47:31,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 17:47:31,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 17:47:31,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 17:47:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 17:47:31,170 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2018-12-02 17:47:31,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 17:47:31,170 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 17:47:31,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 17:47:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 17:47:31,170 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 17:47:31,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 17:47:31,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 17:47:31,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 17:47:31,295 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 17:47:31,329 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 17:47:31,335 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 17:47:31,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 17:47:31,713 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2018-12-02 17:47:32,596 WARN L180 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2018-12-02 17:47:32,973 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-12-02 17:47:32,973 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-12-02 17:47:32,973 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-12-02 17:47:32,973 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-12-02 17:47:32,973 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-12-02 17:47:32,973 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 300 322) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 17:47:32,973 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 300 322) no Hoare annotation was computed. [2018-12-02 17:47:32,973 INFO L444 ceAbstractionStarter]: At program point L312(line 312) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 17:47:32,973 INFO L444 ceAbstractionStarter]: At program point L312-1(line 312) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 17:47:32,974 INFO L448 ceAbstractionStarter]: For program point L310(lines 310 317) no Hoare annotation was computed. [2018-12-02 17:47:32,974 INFO L448 ceAbstractionStarter]: For program point L310-1(lines 310 317) no Hoare annotation was computed. [2018-12-02 17:47:32,974 INFO L448 ceAbstractionStarter]: For program point L308(line 308) no Hoare annotation was computed. [2018-12-02 17:47:32,974 INFO L444 ceAbstractionStarter]: At program point L307(line 307) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 17:47:32,974 INFO L444 ceAbstractionStarter]: At program point L306(line 306) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 17:47:32,974 INFO L444 ceAbstractionStarter]: At program point L306-1(line 306) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 17:47:32,974 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 300 322) no Hoare annotation was computed. [2018-12-02 17:47:32,974 INFO L444 ceAbstractionStarter]: At program point L406(line 406) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or (= |old(~pumpRunning~0)| 0) .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-02 17:47:32,974 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 387 411) no Hoare annotation was computed. [2018-12-02 17:47:32,974 INFO L444 ceAbstractionStarter]: At program point L401(line 401) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-12-02 17:47:32,974 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 387 411) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse0))) [2018-12-02 17:47:32,974 INFO L444 ceAbstractionStarter]: At program point L397(line 397) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-12-02 17:47:32,974 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 387 411) no Hoare annotation was computed. [2018-12-02 17:47:32,974 INFO L448 ceAbstractionStarter]: For program point L395(lines 395 403) no Hoare annotation was computed. [2018-12-02 17:47:32,974 INFO L444 ceAbstractionStarter]: At program point L393(line 393) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point L393-1(line 393) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 408) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 482 490) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 482 490) the Hoare annotation is: true [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 482 490) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 559) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 546 564) the Hoare annotation is: true [2018-12-02 17:47:32,975 INFO L451 ceAbstractionStarter]: At program point L553(line 553) the Hoare annotation is: true [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point L555-2(lines 555 559) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point L553-1(line 553) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 546 564) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 546 564) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-12-02 17:47:32,975 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 290 299) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 290 299) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 290 299) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 471 481) the Hoare annotation is: true [2018-12-02 17:47:32,975 INFO L451 ceAbstractionStarter]: At program point L476(line 476) the Hoare annotation is: true [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point L476-1(line 476) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 471 481) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 471 481) no Hoare annotation was computed. [2018-12-02 17:47:32,975 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 463 470) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 463 470) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 463 470) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point L417(lines 417 434) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 413 437) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 413 437) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0))) [2018-12-02 17:47:32,976 INFO L444 ceAbstractionStarter]: At program point L432(line 432) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse0 .cse1))) [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point L432-1(lines 413 437) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L444 ceAbstractionStarter]: At program point L427(line 427) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse0))) [2018-12-02 17:47:32,976 INFO L444 ceAbstractionStarter]: At program point L423(line 423) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~4) .cse1) .cse2) (or .cse2 .cse3 .cse1) (or .cse0 .cse4 .cse2) (or .cse4 .cse2 .cse3))) [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point L421(lines 421 429) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L444 ceAbstractionStarter]: At program point L419(line 419) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0) (or .cse4 .cse0 .cse1) (or .cse3 .cse0 .cse2))) [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point L419-1(line 419) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 175) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 165 178) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 165 178) the Hoare annotation is: true [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 165 178) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 353 359) no Hoare annotation was computed. [2018-12-02 17:47:32,976 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 353 359) the Hoare annotation is: true [2018-12-02 17:47:32,976 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 566 629) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 17:47:32,976 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 566 629) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L444 ceAbstractionStarter]: At program point L622(lines 575 623) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point L612(lines 612 616) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L444 ceAbstractionStarter]: At program point L612-2(lines 606 617) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0))) [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point L577(lines 576 621) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point L606(lines 606 617) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L444 ceAbstractionStarter]: At program point L598(line 598) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point L596(lines 596 602) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point L596-1(lines 596 602) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L444 ceAbstractionStarter]: At program point L588(line 588) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-12-02 17:47:32,977 INFO L444 ceAbstractionStarter]: At program point L619(lines 576 621) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point L586(lines 586 592) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point L586-1(lines 586 592) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 566 629) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point L578(lines 578 582) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 438 445) the Hoare annotation is: (or (= ~waterLevel~0 1) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 438 445) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 438 445) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 179 187) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 179 187) the Hoare annotation is: true [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 179 187) no Hoare annotation was computed. [2018-12-02 17:47:32,977 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~pumpRunning~0)| ~pumpRunning~0) [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 446 462) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L444 ceAbstractionStarter]: At program point L457(line 457) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-12-02 17:47:32,978 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 446 462) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 446 462) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point L453(lines 453 459) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L444 ceAbstractionStarter]: At program point L451(line 451) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point L451-1(line 451) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 527 545) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 540) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L451 ceAbstractionStarter]: At program point L534(line 534) the Hoare annotation is: true [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point L536-2(lines 536 540) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 527 545) the Hoare annotation is: true [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point L534-1(line 534) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 527 545) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 112 123) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< |old(~methaneLevelCritical~0)| 1) (not (= 0 ~pumpRunning~0)) (<= 1 ~methaneLevelCritical~0) .cse0) (or (= 0 ~methaneLevelCritical~0) .cse0 (not (= |old(~methaneLevelCritical~0)| 0))))) [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 112 123) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L448 ceAbstractionStarter]: For program point L116-1(lines 112 123) no Hoare annotation was computed. [2018-12-02 17:47:32,978 INFO L444 ceAbstractionStarter]: At program point L342(line 342) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse5 (= 1 ~waterLevel~0)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (not .cse7)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse8 (not (= ~waterLevel~0 1))) (.cse1 (not (= ~systemActive~0 1))) (.cse9 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse1 .cse6) (or .cse5 .cse4 .cse1 .cse6 .cse2) (or .cse7 .cse8 .cse1 .cse2 .cse9) (or .cse3 .cse0 .cse1) (or .cse3 .cse7 .cse8 .cse1 .cse9)))) [2018-12-02 17:47:32,979 INFO L444 ceAbstractionStarter]: At program point L340(lines 340 346) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| 1))) (let ((.cse2 (= 1 ~waterLevel~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not .cse5)) (.cse6 (not (= ~waterLevel~0 1))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse8 (= 0 ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse6 .cse3) (or .cse2 .cse1 .cse3 .cse4 .cse7) (or .cse5 .cse6 .cse3 .cse7 (not (= |old(~pumpRunning~0)| 0))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse6 .cse8 .cse3 .cse7) (or .cse0 .cse8 .cse3)))) [2018-12-02 17:47:32,979 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 329 352) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| 1))) (let ((.cse7 (= 1 ~waterLevel~0)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not .cse1)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~waterLevel~0 1))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse5) (or .cse0 .cse6 .cse7 .cse2 .cse8) (or .cse7 .cse6 .cse2 .cse8 .cse5) (or .cse1 .cse2 .cse5 .cse3) (or .cse0 .cse4 .cse2)))) [2018-12-02 17:47:32,979 INFO L444 ceAbstractionStarter]: At program point L335(line 335) the Hoare annotation is: (let ((.cse2 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (not (= |old(~pumpRunning~0)| 0)) .cse1)) (or .cse2 (not (= 0 |old(~pumpRunning~0)|)) .cse0) (or .cse2 .cse0 .cse1))) [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point L333(lines 332 351) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 329 352) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 329 352) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 227 256) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 227 256) the Hoare annotation is: true [2018-12-02 17:47:32,979 INFO L451 ceAbstractionStarter]: At program point L252(lines 227 256) the Hoare annotation is: true [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point L248(line 248) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 245) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L451 ceAbstractionStarter]: At program point L241-1(lines 241 245) the Hoare annotation is: true [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point L238(line 238) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L451 ceAbstractionStarter]: At program point L237-2(lines 237 251) the Hoare annotation is: true [2018-12-02 17:47:32,979 INFO L451 ceAbstractionStarter]: At program point L233(line 233) the Hoare annotation is: true [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point L233-1(line 233) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 124 132) the Hoare annotation is: true [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 124 132) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 124 132) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L451 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 88 99) the Hoare annotation is: true [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point L92-1(lines 88 99) no Hoare annotation was computed. [2018-12-02 17:47:32,979 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 88 99) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 282 288) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 282 288) the Hoare annotation is: true [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1)) [2018-12-02 17:47:32,980 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 361 385) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse0))) [2018-12-02 17:47:32,980 INFO L444 ceAbstractionStarter]: At program point L380(line 380) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 361 385) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point L380-1(lines 361 385) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L444 ceAbstractionStarter]: At program point L375(line 375) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| 0) .cse0 .cse1) (or .cse2 .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse2 .cse0))) [2018-12-02 17:47:32,980 INFO L444 ceAbstractionStarter]: At program point L371(line 371) the Hoare annotation is: (let ((.cse0 (and (not (= ~waterLevel~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| 0) .cse1 .cse2) (or .cse0 .cse1 .cse2))) [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point L369(lines 369 377) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L444 ceAbstractionStarter]: At program point L367(line 367) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or (= |old(~pumpRunning~0)| 0) .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point L367-1(line 367) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 382) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 100 111) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point L104-1(lines 100 111) no Hoare annotation was computed. [2018-12-02 17:47:32,980 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 100 111) the Hoare annotation is: (let ((.cse1 (= 1 ~waterLevel~0)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse0 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 17:47:32,980 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 189 196) no Hoare annotation was computed. [2018-12-02 17:47:32,981 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2018-12-02 17:47:32,981 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 189 196) the Hoare annotation is: true [2018-12-02 17:47:32,981 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 189 196) no Hoare annotation was computed. [2018-12-02 17:47:32,981 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 199 223) the Hoare annotation is: true [2018-12-02 17:47:32,981 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 199 223) no Hoare annotation was computed. [2018-12-02 17:47:32,981 INFO L444 ceAbstractionStarter]: At program point L213(line 213) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 ~pumpRunning~0)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-12-02 17:47:32,981 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 217) no Hoare annotation was computed. [2018-12-02 17:47:32,981 INFO L444 ceAbstractionStarter]: At program point L209(line 209) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-12-02 17:47:32,981 INFO L448 ceAbstractionStarter]: For program point L209-1(line 209) no Hoare annotation was computed. [2018-12-02 17:47:32,981 INFO L448 ceAbstractionStarter]: For program point L207(lines 207 220) no Hoare annotation was computed. [2018-12-02 17:47:32,981 INFO L448 ceAbstractionStarter]: For program point L207-1(lines 199 223) no Hoare annotation was computed. [2018-12-02 17:47:32,981 INFO L451 ceAbstractionStarter]: At program point L205(line 205) the Hoare annotation is: true [2018-12-02 17:47:32,981 INFO L448 ceAbstractionStarter]: For program point L205-1(line 205) no Hoare annotation was computed. [2018-12-02 17:47:32,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:47:32 BoogieIcfgContainer [2018-12-02 17:47:32,988 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 17:47:32,988 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 17:47:32,988 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 17:47:32,988 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 17:47:32,989 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:47:25" (3/4) ... [2018-12-02 17:47:32,991 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 17:47:32,995 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-02 17:47:32,996 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-12-02 17:47:33,000 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2018-12-02 17:47:33,000 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-02 17:47:33,001 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-02 17:47:33,001 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-02 17:47:33,001 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 17:47:33,001 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 17:47:33,017 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 == pumpRunning && 1 <= methaneLevelCritical) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter == 0) [2018-12-02 17:47:33,017 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-02 17:47:33,040 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_89d04dd0-3292-4b8a-95f6-230fbafc53a4/bin-2019/utaipan/witness.graphml [2018-12-02 17:47:33,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 17:47:33,040 INFO L168 Benchmark]: Toolchain (without parser) took 8577.48 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 585.6 MB). Free memory was 953.5 MB in the beginning and 1.2 GB in the end (delta: -210.3 MB). Peak memory consumption was 375.4 MB. Max. memory is 11.5 GB. [2018-12-02 17:47:33,041 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:47:33,041 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -125.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-12-02 17:47:33,041 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:47:33,041 INFO L168 Benchmark]: Boogie Preprocessor took 22.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 17:47:33,041 INFO L168 Benchmark]: RCFGBuilder took 349.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.9 MB). Peak memory consumption was 49.9 MB. Max. memory is 11.5 GB. [2018-12-02 17:47:33,041 INFO L168 Benchmark]: TraceAbstraction took 7827.72 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 489.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -151.6 MB). Peak memory consumption was 584.3 MB. Max. memory is 11.5 GB. [2018-12-02 17:47:33,041 INFO L168 Benchmark]: Witness Printer took 51.59 ms. Allocated memory is still 1.6 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. [2018-12-02 17:47:33,042 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 96.5 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -125.5 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.73 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.27 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 349.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.9 MB). Peak memory consumption was 49.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7827.72 ms. Allocated memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: 489.2 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -151.6 MB). Peak memory consumption was 584.3 MB. Max. memory is 11.5 GB. * Witness Printer took 51.59 ms. Allocated memory is still 1.6 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 193]: 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: 237]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: ((((((0 == pumpRunning && 1 <= methaneLevelCritical) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 163 locations, 1 error locations. SAFE Result, 7.7s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 1.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 2199 SDtfs, 1072 SDslu, 5844 SDs, 0 SdLazy, 1691 SolverSat, 270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 685 GetRequests, 578 SyntacticMatches, 15 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=869occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.8s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 76 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 68 LocationsWithAnnotation, 1755 PreInvPairs, 1843 NumberOfFragments, 1647 HoareAnnotationTreeSize, 1755 FomulaSimplifications, 1981 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 68 FomulaSimplificationsInter, 6689 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1238 NumberOfCodeBlocks, 1238 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1506 ConstructedInterpolants, 0 QuantifiedInterpolants, 276205 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1655 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 163/171 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...