./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d2a2b756a74af71e6c6aa0a16e78dafb1256d78 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:11:46,955 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:11:46,956 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:11:46,962 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:11:46,962 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:11:46,963 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:11:46,963 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:11:46,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:11:46,966 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:11:46,966 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:11:46,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:11:46,967 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:11:46,967 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:11:46,968 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:11:46,969 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:11:46,969 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:11:46,969 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:11:46,971 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:11:46,972 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:11:46,973 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:11:46,974 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:11:46,975 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:11:46,976 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:11:46,976 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:11:46,976 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:11:46,977 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:11:46,978 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:11:46,978 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:11:46,979 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:11:46,979 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:11:46,979 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:11:46,980 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:11:46,980 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:11:46,980 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:11:46,980 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:11:46,980 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:11:46,981 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:11:46,989 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:11:46,989 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:11:46,989 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:11:46,990 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:11:46,990 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:11:46,990 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:11:46,990 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:11:46,990 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:11:46,991 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:11:46,991 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:11:46,991 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:11:46,991 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:11:46,991 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:11:46,991 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:11:46,991 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:11:46,991 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:11:46,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:11:46,992 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:11:46,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:11:46,992 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:11:46,992 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:11:46,992 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:11:46,992 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:11:46,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:11:46,993 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:11:46,993 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:11:46,993 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:11:46,993 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:11:46,993 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:11:46,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:11:46,993 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer 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 -> Automizer 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 -> 2d2a2b756a74af71e6c6aa0a16e78dafb1256d78 [2018-11-28 12:11:47,017 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:11:47,026 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:11:47,028 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:11:47,029 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:11:47,029 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:11:47,029 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c [2018-11-28 12:11:47,067 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/data/1b40bb6a8/c393e1f918794025913c3214f9f82ead/FLAG0c25ac74a [2018-11-28 12:11:47,398 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:11:47,399 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/sv-benchmarks/c/product-lines/minepump_spec4_product54_true-unreach-call_false-termination.cil.c [2018-11-28 12:11:47,408 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/data/1b40bb6a8/c393e1f918794025913c3214f9f82ead/FLAG0c25ac74a [2018-11-28 12:11:47,418 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/data/1b40bb6a8/c393e1f918794025913c3214f9f82ead [2018-11-28 12:11:47,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:11:47,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:11:47,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:11:47,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:11:47,424 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:11:47,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75eb1ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47, skipping insertion in model container [2018-11-28 12:11:47,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:11:47,469 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:11:47,662 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:11:47,711 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:11:47,767 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:11:47,785 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:11:47,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47 WrapperNode [2018-11-28 12:11:47,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:11:47,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:11:47,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:11:47,786 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:11:47,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:11:47,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:11:47,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:11:47,812 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:11:47,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,822 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (1/1) ... [2018-11-28 12:11:47,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:11:47,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:11:47,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:11:47,843 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:11:47,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/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 [2018-11-28 12:11:47,883 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-28 12:11:47,883 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-28 12:11:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-11-28 12:11:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-11-28 12:11:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:11:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:11:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-28 12:11:47,884 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-28 12:11:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 12:11:47,884 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-28 12:11:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-28 12:11:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-28 12:11:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-28 12:11:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-28 12:11:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-28 12:11:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-28 12:11:47,885 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-28 12:11:47,885 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-28 12:11:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-28 12:11:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-28 12:11:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-28 12:11:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-28 12:11:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-28 12:11:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-28 12:11:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-28 12:11:47,886 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-28 12:11:47,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-28 12:11:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-28 12:11:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-28 12:11:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-28 12:11:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-28 12:11:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-28 12:11:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-28 12:11:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-28 12:11:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-28 12:11:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 12:11:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 12:11:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-28 12:11:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-28 12:11:47,887 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-28 12:11:47,887 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-28 12:11:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-28 12:11:47,888 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-28 12:11:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-28 12:11:47,888 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-11-28 12:11:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-28 12:11:47,888 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-28 12:11:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-28 12:11:47,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-28 12:11:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-28 12:11:47,888 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-28 12:11:47,888 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-28 12:11:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-28 12:11:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-28 12:11:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-28 12:11:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 12:11:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:11:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:11:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-28 12:11:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-28 12:11:47,889 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-28 12:11:47,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-28 12:11:47,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:11:47,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:11:48,366 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:11:48,367 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 12:11:48,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:11:48 BoogieIcfgContainer [2018-11-28 12:11:48,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:11:48,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:11:48,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:11:48,373 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:11:48,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:11:47" (1/3) ... [2018-11-28 12:11:48,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32308b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:11:48, skipping insertion in model container [2018-11-28 12:11:48,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:11:47" (2/3) ... [2018-11-28 12:11:48,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32308b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:11:48, skipping insertion in model container [2018-11-28 12:11:48,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:11:48" (3/3) ... [2018-11-28 12:11:48,376 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product54_true-unreach-call_false-termination.cil.c [2018-11-28 12:11:48,384 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:11:48,391 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:11:48,404 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:11:48,429 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:11:48,429 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:11:48,429 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:11:48,430 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:11:48,430 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:11:48,430 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:11:48,430 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:11:48,430 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:11:48,430 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:11:48,447 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2018-11-28 12:11:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-28 12:11:48,454 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:48,454 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] [2018-11-28 12:11:48,456 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:48,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:48,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1486633802, now seen corresponding path program 1 times [2018-11-28 12:11:48,462 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:48,463 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:48,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:48,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:48,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:48,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:48,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:11:48,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:11:48,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 12:11:48,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 12:11:48,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 12:11:48,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 12:11:48,662 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2018-11-28 12:11:48,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:48,690 INFO L93 Difference]: Finished difference Result 300 states and 369 transitions. [2018-11-28 12:11:48,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 12:11:48,692 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-28 12:11:48,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:48,701 INFO L225 Difference]: With dead ends: 300 [2018-11-28 12:11:48,701 INFO L226 Difference]: Without dead ends: 150 [2018-11-28 12:11:48,703 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 [2018-11-28 12:11:48,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-11-28 12:11:48,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-11-28 12:11:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-11-28 12:11:48,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 176 transitions. [2018-11-28 12:11:48,739 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 176 transitions. Word has length 46 [2018-11-28 12:11:48,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:48,739 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 176 transitions. [2018-11-28 12:11:48,739 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 12:11:48,739 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 176 transitions. [2018-11-28 12:11:48,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-28 12:11:48,742 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:48,742 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] [2018-11-28 12:11:48,742 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:48,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:48,743 INFO L82 PathProgramCache]: Analyzing trace with hash 1530271189, now seen corresponding path program 1 times [2018-11-28 12:11:48,743 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:48,743 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:48,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:48,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:48,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:48,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:48,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:11:48,840 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:11:48,840 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 12:11:48,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 12:11:48,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 12:11:48,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 12:11:48,842 INFO L87 Difference]: Start difference. First operand 150 states and 176 transitions. Second operand 3 states. [2018-11-28 12:11:48,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:48,866 INFO L93 Difference]: Finished difference Result 245 states and 287 transitions. [2018-11-28 12:11:48,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 12:11:48,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-28 12:11:48,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:48,868 INFO L225 Difference]: With dead ends: 245 [2018-11-28 12:11:48,868 INFO L226 Difference]: Without dead ends: 141 [2018-11-28 12:11:48,869 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 [2018-11-28 12:11:48,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-28 12:11:48,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-11-28 12:11:48,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-11-28 12:11:48,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 164 transitions. [2018-11-28 12:11:48,878 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 164 transitions. Word has length 47 [2018-11-28 12:11:48,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:48,878 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 164 transitions. [2018-11-28 12:11:48,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 12:11:48,878 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 164 transitions. [2018-11-28 12:11:48,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-28 12:11:48,879 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:48,879 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] [2018-11-28 12:11:48,879 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:48,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:48,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1827401059, now seen corresponding path program 1 times [2018-11-28 12:11:48,879 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:48,879 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:48,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:48,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:48,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:48,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:11:48,990 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:11:48,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 12:11:48,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:11:48,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:11:48,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:11:48,991 INFO L87 Difference]: Start difference. First operand 141 states and 164 transitions. Second operand 7 states. [2018-11-28 12:11:49,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:49,211 INFO L93 Difference]: Finished difference Result 258 states and 305 transitions. [2018-11-28 12:11:49,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:11:49,211 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-28 12:11:49,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:49,213 INFO L225 Difference]: With dead ends: 258 [2018-11-28 12:11:49,213 INFO L226 Difference]: Without dead ends: 141 [2018-11-28 12:11:49,214 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:11:49,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-11-28 12:11:49,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-11-28 12:11:49,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-11-28 12:11:49,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 163 transitions. [2018-11-28 12:11:49,226 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 163 transitions. Word has length 52 [2018-11-28 12:11:49,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:49,226 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 163 transitions. [2018-11-28 12:11:49,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:11:49,227 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 163 transitions. [2018-11-28 12:11:49,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-28 12:11:49,228 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:49,229 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] [2018-11-28 12:11:49,229 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:49,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:49,229 INFO L82 PathProgramCache]: Analyzing trace with hash -892679531, now seen corresponding path program 1 times [2018-11-28 12:11:49,229 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:49,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:49,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:49,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:49,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:49,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:49,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:11:49,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:11:49,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:11:49,320 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 12:11:49,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 12:11:49,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 12:11:49,321 INFO L87 Difference]: Start difference. First operand 141 states and 163 transitions. Second operand 5 states. [2018-11-28 12:11:49,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:49,725 INFO L93 Difference]: Finished difference Result 365 states and 439 transitions. [2018-11-28 12:11:49,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:11:49,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-11-28 12:11:49,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:49,729 INFO L225 Difference]: With dead ends: 365 [2018-11-28 12:11:49,729 INFO L226 Difference]: Without dead ends: 248 [2018-11-28 12:11:49,730 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 [2018-11-28 12:11:49,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2018-11-28 12:11:49,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 229. [2018-11-28 12:11:49,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 229 states. [2018-11-28 12:11:49,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 258 transitions. [2018-11-28 12:11:49,747 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 258 transitions. Word has length 70 [2018-11-28 12:11:49,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:49,747 INFO L480 AbstractCegarLoop]: Abstraction has 229 states and 258 transitions. [2018-11-28 12:11:49,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 12:11:49,748 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 258 transitions. [2018-11-28 12:11:49,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-28 12:11:49,749 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:49,749 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] [2018-11-28 12:11:49,751 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:49,752 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:49,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1850632469, now seen corresponding path program 1 times [2018-11-28 12:11:49,752 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:49,752 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:49,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:49,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:49,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:11:49,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:11:49,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 12:11:49,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 12:11:49,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 12:11:49,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:11:49,862 INFO L87 Difference]: Start difference. First operand 229 states and 258 transitions. Second operand 10 states. [2018-11-28 12:11:50,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:50,274 INFO L93 Difference]: Finished difference Result 735 states and 899 transitions. [2018-11-28 12:11:50,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 12:11:50,275 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2018-11-28 12:11:50,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:50,279 INFO L225 Difference]: With dead ends: 735 [2018-11-28 12:11:50,279 INFO L226 Difference]: Without dead ends: 530 [2018-11-28 12:11:50,280 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:11:50,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2018-11-28 12:11:50,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 520. [2018-11-28 12:11:50,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-11-28 12:11:50,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 606 transitions. [2018-11-28 12:11:50,320 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 606 transitions. Word has length 84 [2018-11-28 12:11:50,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:50,320 INFO L480 AbstractCegarLoop]: Abstraction has 520 states and 606 transitions. [2018-11-28 12:11:50,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 12:11:50,320 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 606 transitions. [2018-11-28 12:11:50,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-28 12:11:50,323 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:50,323 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:11:50,323 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:50,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:50,324 INFO L82 PathProgramCache]: Analyzing trace with hash -567611887, now seen corresponding path program 1 times [2018-11-28 12:11:50,324 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:50,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:50,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:50,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:50,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:50,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:50,400 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-28 12:11:50,400 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:11:50,400 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/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 [2018-11-28 12:11:50,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:50,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:50,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:11:50,548 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-28 12:11:50,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:11:50,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6 [2018-11-28 12:11:50,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:11:50,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:11:50,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:11:50,565 INFO L87 Difference]: Start difference. First operand 520 states and 606 transitions. Second operand 6 states. [2018-11-28 12:11:50,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:50,610 INFO L93 Difference]: Finished difference Result 1031 states and 1227 transitions. [2018-11-28 12:11:50,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:11:50,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-11-28 12:11:50,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:50,614 INFO L225 Difference]: With dead ends: 1031 [2018-11-28 12:11:50,614 INFO L226 Difference]: Without dead ends: 535 [2018-11-28 12:11:50,615 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 12:11:50,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2018-11-28 12:11:50,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2018-11-28 12:11:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 535 states. [2018-11-28 12:11:50,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 622 transitions. [2018-11-28 12:11:50,641 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 622 transitions. Word has length 133 [2018-11-28 12:11:50,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:50,642 INFO L480 AbstractCegarLoop]: Abstraction has 535 states and 622 transitions. [2018-11-28 12:11:50,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:11:50,642 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 622 transitions. [2018-11-28 12:11:50,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-28 12:11:50,644 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:50,644 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:11:50,644 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:50,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:50,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1710114353, now seen corresponding path program 1 times [2018-11-28 12:11:50,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:50,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:50,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:50,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:50,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-28 12:11:50,729 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:11:50,729 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/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 [2018-11-28 12:11:50,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:50,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:11:50,864 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-28 12:11:50,880 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:11:50,880 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2018-11-28 12:11:50,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-28 12:11:50,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-28 12:11:50,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:11:50,881 INFO L87 Difference]: Start difference. First operand 535 states and 622 transitions. Second operand 11 states. [2018-11-28 12:11:50,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:50,923 INFO L93 Difference]: Finished difference Result 970 states and 1159 transitions. [2018-11-28 12:11:50,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:11:50,924 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 133 [2018-11-28 12:11:50,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:50,926 INFO L225 Difference]: With dead ends: 970 [2018-11-28 12:11:50,926 INFO L226 Difference]: Without dead ends: 459 [2018-11-28 12:11:50,927 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-11-28 12:11:50,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2018-11-28 12:11:50,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2018-11-28 12:11:50,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 459 states. [2018-11-28 12:11:50,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 527 transitions. [2018-11-28 12:11:50,944 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 527 transitions. Word has length 133 [2018-11-28 12:11:50,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:50,944 INFO L480 AbstractCegarLoop]: Abstraction has 459 states and 527 transitions. [2018-11-28 12:11:50,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-11-28 12:11:50,944 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 527 transitions. [2018-11-28 12:11:50,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-28 12:11:50,946 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:50,947 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:11:50,947 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:50,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:50,947 INFO L82 PathProgramCache]: Analyzing trace with hash -349700626, now seen corresponding path program 1 times [2018-11-28 12:11:50,947 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:50,947 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:50,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:50,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:50,948 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:51,021 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-28 12:11:51,021 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:11:51,021 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:11:51,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:51,112 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:11:51,145 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:11:51,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:11:51,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2018-11-28 12:11:51,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:11:51,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:11:51,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:11:51,162 INFO L87 Difference]: Start difference. First operand 459 states and 527 transitions. Second operand 6 states. [2018-11-28 12:11:51,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:51,610 INFO L93 Difference]: Finished difference Result 964 states and 1151 transitions. [2018-11-28 12:11:51,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:11:51,611 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-11-28 12:11:51,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:51,613 INFO L225 Difference]: With dead ends: 964 [2018-11-28 12:11:51,613 INFO L226 Difference]: Without dead ends: 595 [2018-11-28 12:11:51,614 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-11-28 12:11:51,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2018-11-28 12:11:51,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 543. [2018-11-28 12:11:51,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2018-11-28 12:11:51,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 630 transitions. [2018-11-28 12:11:51,635 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 630 transitions. Word has length 141 [2018-11-28 12:11:51,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:51,635 INFO L480 AbstractCegarLoop]: Abstraction has 543 states and 630 transitions. [2018-11-28 12:11:51,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:11:51,635 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 630 transitions. [2018-11-28 12:11:51,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-28 12:11:51,637 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:51,638 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:11:51,638 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:51,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:51,638 INFO L82 PathProgramCache]: Analyzing trace with hash -2124895532, now seen corresponding path program 1 times [2018-11-28 12:11:51,638 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:51,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:51,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:51,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:51,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:51,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:51,711 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-11-28 12:11:51,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:11:51,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-28 12:11:51,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-28 12:11:51,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-28 12:11:51,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:11:51,712 INFO L87 Difference]: Start difference. First operand 543 states and 630 transitions. Second operand 9 states. [2018-11-28 12:11:52,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:52,093 INFO L93 Difference]: Finished difference Result 1467 states and 1736 transitions. [2018-11-28 12:11:52,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 12:11:52,094 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 137 [2018-11-28 12:11:52,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:52,096 INFO L225 Difference]: With dead ends: 1467 [2018-11-28 12:11:52,096 INFO L226 Difference]: Without dead ends: 948 [2018-11-28 12:11:52,098 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2018-11-28 12:11:52,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2018-11-28 12:11:52,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 945. [2018-11-28 12:11:52,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 945 states. [2018-11-28 12:11:52,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1087 transitions. [2018-11-28 12:11:52,130 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1087 transitions. Word has length 137 [2018-11-28 12:11:52,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:52,130 INFO L480 AbstractCegarLoop]: Abstraction has 945 states and 1087 transitions. [2018-11-28 12:11:52,131 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-28 12:11:52,131 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1087 transitions. [2018-11-28 12:11:52,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-28 12:11:52,133 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:52,133 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-11-28 12:11:52,133 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:52,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:52,133 INFO L82 PathProgramCache]: Analyzing trace with hash 497577496, now seen corresponding path program 1 times [2018-11-28 12:11:52,133 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:52,133 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:52,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:52,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:52,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:52,194 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-28 12:11:52,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:11:52,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:11:52,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:11:52,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:11:52,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:11:52,195 INFO L87 Difference]: Start difference. First operand 945 states and 1087 transitions. Second operand 6 states. [2018-11-28 12:11:52,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:52,316 INFO L93 Difference]: Finished difference Result 960 states and 1103 transitions. [2018-11-28 12:11:52,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 12:11:52,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2018-11-28 12:11:52,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:52,319 INFO L225 Difference]: With dead ends: 960 [2018-11-28 12:11:52,319 INFO L226 Difference]: Without dead ends: 957 [2018-11-28 12:11:52,320 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-28 12:11:52,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 957 states. [2018-11-28 12:11:52,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 957 to 945. [2018-11-28 12:11:52,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 945 states. [2018-11-28 12:11:52,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1083 transitions. [2018-11-28 12:11:52,351 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1083 transitions. Word has length 141 [2018-11-28 12:11:52,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:52,352 INFO L480 AbstractCegarLoop]: Abstraction has 945 states and 1083 transitions. [2018-11-28 12:11:52,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:11:52,352 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1083 transitions. [2018-11-28 12:11:52,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2018-11-28 12:11:52,354 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:52,354 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:11:52,354 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:52,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:52,355 INFO L82 PathProgramCache]: Analyzing trace with hash -1399067579, now seen corresponding path program 1 times [2018-11-28 12:11:52,355 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:52,355 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:52,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:52,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:52,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:52,471 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-28 12:11:52,472 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:11:52,472 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:11:52,479 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:52,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:52,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:11:52,672 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:11:52,692 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 12:11:52,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 14 [2018-11-28 12:11:52,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-11-28 12:11:52,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-11-28 12:11:52,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:11:52,694 INFO L87 Difference]: Start difference. First operand 945 states and 1083 transitions. Second operand 14 states. [2018-11-28 12:11:54,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:54,155 INFO L93 Difference]: Finished difference Result 2453 states and 3132 transitions. [2018-11-28 12:11:54,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-11-28 12:11:54,156 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 159 [2018-11-28 12:11:54,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:54,162 INFO L225 Difference]: With dead ends: 2453 [2018-11-28 12:11:54,162 INFO L226 Difference]: Without dead ends: 1668 [2018-11-28 12:11:54,164 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 208 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=206, Invalid=850, Unknown=0, NotChecked=0, Total=1056 [2018-11-28 12:11:54,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2018-11-28 12:11:54,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1340. [2018-11-28 12:11:54,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1340 states. [2018-11-28 12:11:54,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1533 transitions. [2018-11-28 12:11:54,215 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1533 transitions. Word has length 159 [2018-11-28 12:11:54,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:54,215 INFO L480 AbstractCegarLoop]: Abstraction has 1340 states and 1533 transitions. [2018-11-28 12:11:54,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-11-28 12:11:54,215 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1533 transitions. [2018-11-28 12:11:54,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-11-28 12:11:54,217 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:11:54,218 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-28 12:11:54,218 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:11:54,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:11:54,218 INFO L82 PathProgramCache]: Analyzing trace with hash -48945056, now seen corresponding path program 1 times [2018-11-28 12:11:54,218 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:11:54,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:11:54,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:54,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:54,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:11:54,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-11-28 12:11:54,318 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 12:11:54,318 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 12:11:54,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:11:54,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:11:54,407 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:11:54,458 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-11-28 12:11:54,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-28 12:11:54,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2018-11-28 12:11:54,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-28 12:11:54,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-28 12:11:54,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-11-28 12:11:54,477 INFO L87 Difference]: Start difference. First operand 1340 states and 1533 transitions. Second operand 13 states. [2018-11-28 12:11:54,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:11:54,534 INFO L93 Difference]: Finished difference Result 1804 states and 2063 transitions. [2018-11-28 12:11:54,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 12:11:54,535 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 229 [2018-11-28 12:11:54,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:11:54,535 INFO L225 Difference]: With dead ends: 1804 [2018-11-28 12:11:54,536 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:11:54,538 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-11-28 12:11:54,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:11:54,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:11:54,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:11:54,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:11:54,539 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2018-11-28 12:11:54,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:11:54,539 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:11:54,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-28 12:11:54,539 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:11:54,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:11:54,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:11:54,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,670 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,671 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,753 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,753 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,866 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,877 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,879 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,879 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:54,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-28 12:11:55,821 WARN L180 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 42 [2018-11-28 12:11:56,745 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 976 982) the Hoare annotation is: true [2018-11-28 12:11:56,745 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 976 982) no Hoare annotation was computed. [2018-11-28 12:11:56,745 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 983 991) no Hoare annotation was computed. [2018-11-28 12:11:56,745 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 983 991) the Hoare annotation is: true [2018-11-28 12:11:56,745 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 983 991) no Hoare annotation was computed. [2018-11-28 12:11:56,745 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 355 379) the Hoare annotation is: true [2018-11-28 12:11:56,745 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification4_spec__1EXIT(lines 355 379) no Hoare annotation was computed. [2018-11-28 12:11:56,745 INFO L444 ceAbstractionStarter]: At program point L369(line 369) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-11-28 12:11:56,745 INFO L448 ceAbstractionStarter]: For program point L367(lines 367 373) no Hoare annotation was computed. [2018-11-28 12:11:56,746 INFO L444 ceAbstractionStarter]: At program point L365(line 365) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0) (or (< ~waterLevel~0 2) .cse0))) [2018-11-28 12:11:56,746 INFO L448 ceAbstractionStarter]: For program point L365-1(line 365) no Hoare annotation was computed. [2018-11-28 12:11:56,746 INFO L448 ceAbstractionStarter]: For program point L363(lines 363 376) no Hoare annotation was computed. [2018-11-28 12:11:56,746 INFO L448 ceAbstractionStarter]: For program point L363-1(lines 355 379) no Hoare annotation was computed. [2018-11-28 12:11:56,746 INFO L451 ceAbstractionStarter]: At program point L361(line 361) the Hoare annotation is: true [2018-11-28 12:11:56,746 INFO L448 ceAbstractionStarter]: For program point L361-1(line 361) no Hoare annotation was computed. [2018-11-28 12:11:56,746 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 456 478) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-28 12:11:56,746 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 456 478) no Hoare annotation was computed. [2018-11-28 12:11:56,746 INFO L444 ceAbstractionStarter]: At program point L468(line 468) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-28 12:11:56,746 INFO L444 ceAbstractionStarter]: At program point L468-1(line 468) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= main_~tmp~7 ~systemActive~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-28 12:11:56,746 INFO L448 ceAbstractionStarter]: For program point L466(lines 466 473) no Hoare annotation was computed. [2018-11-28 12:11:56,746 INFO L448 ceAbstractionStarter]: For program point L466-1(lines 466 473) no Hoare annotation was computed. [2018-11-28 12:11:56,747 INFO L448 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-11-28 12:11:56,747 INFO L444 ceAbstractionStarter]: At program point L463(line 463) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-28 12:11:56,747 INFO L444 ceAbstractionStarter]: At program point L462(line 462) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-28 12:11:56,747 INFO L444 ceAbstractionStarter]: At program point L462-1(line 462) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-28 12:11:56,747 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 456 478) no Hoare annotation was computed. [2018-11-28 12:11:56,747 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 261 269) no Hoare annotation was computed. [2018-11-28 12:11:56,747 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 261 269) the Hoare annotation is: true [2018-11-28 12:11:56,747 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 261 269) no Hoare annotation was computed. [2018-11-28 12:11:56,747 INFO L448 ceAbstractionStarter]: For program point L334(lines 334 338) no Hoare annotation was computed. [2018-11-28 12:11:56,747 INFO L451 ceAbstractionStarter]: At program point L332(line 332) the Hoare annotation is: true [2018-11-28 12:11:56,747 INFO L448 ceAbstractionStarter]: For program point L334-2(lines 334 338) no Hoare annotation was computed. [2018-11-28 12:11:56,747 INFO L448 ceAbstractionStarter]: For program point L332-1(line 332) no Hoare annotation was computed. [2018-11-28 12:11:56,747 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 325 343) the Hoare annotation is: true [2018-11-28 12:11:56,748 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 325 343) no Hoare annotation was computed. [2018-11-28 12:11:56,748 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 325 343) no Hoare annotation was computed. [2018-11-28 12:11:56,748 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 969 975) no Hoare annotation was computed. [2018-11-28 12:11:56,748 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 969 975) the Hoare annotation is: true [2018-11-28 12:11:56,748 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 443 452) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-28 12:11:56,748 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 443 452) no Hoare annotation was computed. [2018-11-28 12:11:56,748 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 443 452) no Hoare annotation was computed. [2018-11-28 12:11:56,748 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 250 260) the Hoare annotation is: true [2018-11-28 12:11:56,748 INFO L451 ceAbstractionStarter]: At program point L255(line 255) the Hoare annotation is: true [2018-11-28 12:11:56,748 INFO L448 ceAbstractionStarter]: For program point L255-1(line 255) no Hoare annotation was computed. [2018-11-28 12:11:56,748 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 250 260) no Hoare annotation was computed. [2018-11-28 12:11:56,748 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 250 260) no Hoare annotation was computed. [2018-11-28 12:11:56,748 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 242 249) the Hoare annotation is: (or (< ~waterLevel~0 1) (= |old(~pumpRunning~0)| 0) (not (= ~systemActive~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-28 12:11:56,748 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 242 249) no Hoare annotation was computed. [2018-11-28 12:11:56,749 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 242 249) no Hoare annotation was computed. [2018-11-28 12:11:56,749 INFO L448 ceAbstractionStarter]: For program point L929(lines 929 935) no Hoare annotation was computed. [2018-11-28 12:11:56,749 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 925 938) no Hoare annotation was computed. [2018-11-28 12:11:56,749 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 925 938) the Hoare annotation is: true [2018-11-28 12:11:56,749 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 925 938) no Hoare annotation was computed. [2018-11-28 12:11:56,749 INFO L444 ceAbstractionStarter]: At program point L223(line 223) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (= ~methaneLevelCritical~0 0) .cse0 .cse1) (or .cse0 .cse1 (and (= processEnvironment_~tmp~3 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-28 12:11:56,749 INFO L444 ceAbstractionStarter]: At program point L219(line 219) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (= processEnvironment_~tmp~3 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1))) [2018-11-28 12:11:56,749 INFO L448 ceAbstractionStarter]: For program point L217(lines 217 225) no Hoare annotation was computed. [2018-11-28 12:11:56,749 INFO L444 ceAbstractionStarter]: At program point L215(line 215) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-28 12:11:56,749 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 209 233) no Hoare annotation was computed. [2018-11-28 12:11:56,749 INFO L448 ceAbstractionStarter]: For program point L215-1(line 215) no Hoare annotation was computed. [2018-11-28 12:11:56,749 INFO L448 ceAbstractionStarter]: For program point L213(lines 213 230) no Hoare annotation was computed. [2018-11-28 12:11:56,750 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 209 233) the Hoare annotation is: (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-28 12:11:56,750 INFO L444 ceAbstractionStarter]: At program point L228(line 228) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1))) [2018-11-28 12:11:56,750 INFO L448 ceAbstractionStarter]: For program point L228-1(lines 209 233) no Hoare annotation was computed. [2018-11-28 12:11:56,750 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 149 155) no Hoare annotation was computed. [2018-11-28 12:11:56,750 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 149 155) the Hoare annotation is: true [2018-11-28 12:11:56,750 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 45 110) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 |old(~waterLevel~0)|) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-28 12:11:56,750 INFO L448 ceAbstractionStarter]: For program point L93(lines 93 97) no Hoare annotation was computed. [2018-11-28 12:11:56,750 INFO L444 ceAbstractionStarter]: At program point L93-2(lines 85 98) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2018-11-28 12:11:56,750 INFO L448 ceAbstractionStarter]: For program point L56(lines 55 102) no Hoare annotation was computed. [2018-11-28 12:11:56,750 INFO L444 ceAbstractionStarter]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2018-11-28 12:11:56,750 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 45 110) no Hoare annotation was computed. [2018-11-28 12:11:56,750 INFO L448 ceAbstractionStarter]: For program point L85(lines 85 98) no Hoare annotation was computed. [2018-11-28 12:11:56,751 INFO L444 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-28 12:11:56,751 INFO L448 ceAbstractionStarter]: For program point L75(lines 75 81) no Hoare annotation was computed. [2018-11-28 12:11:56,751 INFO L448 ceAbstractionStarter]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2018-11-28 12:11:56,751 INFO L444 ceAbstractionStarter]: At program point L100(lines 55 102) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-28 12:11:56,751 INFO L444 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) (<= 1 ~waterLevel~0) .cse0 .cse1) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-28 12:11:56,751 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-11-28 12:11:56,751 INFO L448 ceAbstractionStarter]: For program point L65-1(lines 65 71) no Hoare annotation was computed. [2018-11-28 12:11:56,751 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 61) no Hoare annotation was computed. [2018-11-28 12:11:56,751 INFO L444 ceAbstractionStarter]: At program point L103(lines 54 104) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-28 12:11:56,751 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 45 110) no Hoare annotation was computed. [2018-11-28 12:11:56,751 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 939 947) no Hoare annotation was computed. [2018-11-28 12:11:56,751 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 939 947) the Hoare annotation is: true [2018-11-28 12:11:56,751 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 939 947) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-28 12:11:56,752 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 234 241) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 234 241) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 234 241) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1))) [2018-11-28 12:11:56,752 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 916 924) the Hoare annotation is: true [2018-11-28 12:11:56,752 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 916 924) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 916 924) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 306 324) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 319) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L451 ceAbstractionStarter]: At program point L313(line 313) the Hoare annotation is: true [2018-11-28 12:11:56,752 INFO L448 ceAbstractionStarter]: For program point L315-2(lines 315 319) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L448 ceAbstractionStarter]: For program point L313-1(line 313) no Hoare annotation was computed. [2018-11-28 12:11:56,752 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 306 324) the Hoare annotation is: true [2018-11-28 12:11:56,753 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 306 324) no Hoare annotation was computed. [2018-11-28 12:11:56,753 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 872 883) the Hoare annotation is: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (< ~waterLevel~0 1)) (.cse6 (not .cse1)) (.cse5 (= 0 ~methaneLevelCritical~0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse7 (< ~waterLevel~0 2)) (.cse4 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 .cse4 .cse6) (or (or .cse7 .cse4 .cse6) .cse5) (or .cse3 .cse1 .cse7 .cse4)))) [2018-11-28 12:11:56,753 INFO L448 ceAbstractionStarter]: For program point L876-1(lines 872 883) no Hoare annotation was computed. [2018-11-28 12:11:56,753 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 872 883) no Hoare annotation was computed. [2018-11-28 12:11:56,753 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 884 892) the Hoare annotation is: true [2018-11-28 12:11:56,753 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 884 892) no Hoare annotation was computed. [2018-11-28 12:11:56,753 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 884 892) no Hoare annotation was computed. [2018-11-28 12:11:56,753 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 382 411) no Hoare annotation was computed. [2018-11-28 12:11:56,753 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 382 411) the Hoare annotation is: true [2018-11-28 12:11:56,753 INFO L451 ceAbstractionStarter]: At program point L407(lines 382 411) the Hoare annotation is: true [2018-11-28 12:11:56,753 INFO L448 ceAbstractionStarter]: For program point L403(line 403) no Hoare annotation was computed. [2018-11-28 12:11:56,753 INFO L448 ceAbstractionStarter]: For program point L396(lines 396 400) no Hoare annotation was computed. [2018-11-28 12:11:56,753 INFO L451 ceAbstractionStarter]: At program point L396-1(lines 396 400) the Hoare annotation is: true [2018-11-28 12:11:56,753 INFO L448 ceAbstractionStarter]: For program point L393(line 393) no Hoare annotation was computed. [2018-11-28 12:11:56,754 INFO L451 ceAbstractionStarter]: At program point L392-2(lines 392 406) the Hoare annotation is: true [2018-11-28 12:11:56,754 INFO L451 ceAbstractionStarter]: At program point L388(line 388) the Hoare annotation is: true [2018-11-28 12:11:56,754 INFO L448 ceAbstractionStarter]: For program point L388-1(line 388) no Hoare annotation was computed. [2018-11-28 12:11:56,754 INFO L448 ceAbstractionStarter]: For program point L129(lines 128 147) no Hoare annotation was computed. [2018-11-28 12:11:56,754 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 125 148) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1))) (.cse0 (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse1) (or (or (< |old(~waterLevel~0)| 2) .cse1) .cse0))) [2018-11-28 12:11:56,754 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 125 148) no Hoare annotation was computed. [2018-11-28 12:11:56,754 INFO L444 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or (or (< |old(~waterLevel~0)| 2) .cse0) (and (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse1)) (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0))) [2018-11-28 12:11:56,754 INFO L444 ceAbstractionStarter]: At program point L136(lines 136 142) the Hoare annotation is: (let ((.cse3 (= ~methaneLevelCritical~0 0))) (let ((.cse7 (not .cse3)) (.cse9 (<= 2 ~waterLevel~0)) (.cse10 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse11 (= ~systemActive~0 1))) (let ((.cse5 (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (.cse4 (< |old(~waterLevel~0)| 2)) (.cse8 (and (= 0 ~methaneLevelCritical~0) .cse9 .cse10 .cse11)) (.cse2 (and .cse10 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not .cse11)) (.cse6 (and .cse7 .cse9 .cse10 .cse11))) (and (or (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) .cse2) (or (or .cse3 .cse4 .cse1) .cse5 .cse6) (or (or .cse4 .cse1 .cse7) .cse5 .cse8) (or (or .cse0 .cse4 .cse1 .cse7) .cse8) (or .cse2 .cse0 .cse3 (< |old(~waterLevel~0)| 1) .cse1 .cse6))))) [2018-11-28 12:11:56,754 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 125 148) no Hoare annotation was computed. [2018-11-28 12:11:56,754 INFO L444 ceAbstractionStarter]: At program point L131(line 131) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (and (= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< |old(~waterLevel~0)| 2) .cse0)) (or (not (= 0 |old(~pumpRunning~0)|)) (< |old(~waterLevel~0)| 1) .cse0))) [2018-11-28 12:11:56,755 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 848 859) the Hoare annotation is: (or (= ~waterLevel~0 |old(~waterLevel~0)|) (or (= ~pumpRunning~0 0) (< |old(~waterLevel~0)| 2) (not (= ~systemActive~0 1)))) [2018-11-28 12:11:56,755 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 848 859) no Hoare annotation was computed. [2018-11-28 12:11:56,755 INFO L448 ceAbstractionStarter]: For program point L852-1(lines 848 859) no Hoare annotation was computed. [2018-11-28 12:11:56,755 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 436 442) no Hoare annotation was computed. [2018-11-28 12:11:56,755 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 436 442) the Hoare annotation is: true [2018-11-28 12:11:56,755 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:11:56,755 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= ~waterLevel~0 1) (= ~systemActive~0 1)) [2018-11-28 12:11:56,755 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:11:56,755 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:11:56,755 INFO L448 ceAbstractionStarter]: For program point L161(lines 161 178) no Hoare annotation was computed. [2018-11-28 12:11:56,755 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 157 181) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (or .cse1 (< ~waterLevel~0 2) .cse2)) (or (or .cse1 .cse2 (not (= ~waterLevel~0 1))) .cse0))) [2018-11-28 12:11:56,755 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 157 181) no Hoare annotation was computed. [2018-11-28 12:11:56,755 INFO L444 ceAbstractionStarter]: At program point L176(line 176) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-28 12:11:56,755 INFO L448 ceAbstractionStarter]: For program point L176-1(lines 157 181) no Hoare annotation was computed. [2018-11-28 12:11:56,756 INFO L444 ceAbstractionStarter]: At program point L171(line 171) the Hoare annotation is: (let ((.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (or .cse1 .cse2 (not (= ~waterLevel~0 1)))) (or (<= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2018-11-28 12:11:56,756 INFO L444 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (< ~waterLevel~0 1) (not (= ~systemActive~0 1))) [2018-11-28 12:11:56,756 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 173) no Hoare annotation was computed. [2018-11-28 12:11:56,756 INFO L444 ceAbstractionStarter]: At program point L163(line 163) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (or .cse1 (< ~waterLevel~0 2) .cse2)) (or (or .cse1 .cse2 (not (= ~waterLevel~0 1))) .cse0))) [2018-11-28 12:11:56,756 INFO L448 ceAbstractionStarter]: For program point L163-1(line 163) no Hoare annotation was computed. [2018-11-28 12:11:56,756 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 344 351) no Hoare annotation was computed. [2018-11-28 12:11:56,756 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 344 351) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 1)) (.cse0 (not (= |old(~systemActive~0)| 1)))) (and (or (or (< ~waterLevel~0 2) .cse0) .cse1) (or .cse1 (not (= 0 ~pumpRunning~0)) (< ~waterLevel~0 1) .cse0))) [2018-11-28 12:11:56,756 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 344 351) no Hoare annotation was computed. [2018-11-28 12:11:56,756 INFO L448 ceAbstractionStarter]: For program point L864-1(lines 860 871) no Hoare annotation was computed. [2018-11-28 12:11:56,756 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 860 871) no Hoare annotation was computed. [2018-11-28 12:11:56,756 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 860 871) the Hoare annotation is: (let ((.cse1 (= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (< |old(~waterLevel~0)| 2) .cse1) (or .cse1 (< |old(~waterLevel~0)| 1) (or (not (= 0 ~pumpRunning~0)) .cse0)))) [2018-11-28 12:11:56,756 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 949 956) no Hoare annotation was computed. [2018-11-28 12:11:56,756 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 949 956) the Hoare annotation is: true [2018-11-28 12:11:56,757 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 953) no Hoare annotation was computed. [2018-11-28 12:11:56,757 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 949 956) no Hoare annotation was computed. [2018-11-28 12:11:56,757 INFO L444 ceAbstractionStarter]: At program point L193(line 193) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (and (= processEnvironment__wrappee__lowWaterSensor_~tmp~2 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-28 12:11:56,757 INFO L448 ceAbstractionStarter]: For program point L191(lines 191 199) no Hoare annotation was computed. [2018-11-28 12:11:56,757 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 183 207) no Hoare annotation was computed. [2018-11-28 12:11:56,757 INFO L444 ceAbstractionStarter]: At program point L189(line 189) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) [2018-11-28 12:11:56,757 INFO L448 ceAbstractionStarter]: For program point L189-1(line 189) no Hoare annotation was computed. [2018-11-28 12:11:56,757 INFO L448 ceAbstractionStarter]: For program point L187(lines 187 204) no Hoare annotation was computed. [2018-11-28 12:11:56,757 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 183 207) the Hoare annotation is: (let ((.cse1 (< ~waterLevel~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse0 .cse2))) [2018-11-28 12:11:56,757 INFO L444 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| 0) .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1))) [2018-11-28 12:11:56,757 INFO L448 ceAbstractionStarter]: For program point L202-1(lines 183 207) no Hoare annotation was computed. [2018-11-28 12:11:56,758 INFO L444 ceAbstractionStarter]: At program point L197(line 197) the Hoare annotation is: (let ((.cse0 (< ~waterLevel~0 1)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-28 12:11:56,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:11:56 BoogieIcfgContainer [2018-11-28 12:11:56,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:11:56,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:11:56,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:11:56,768 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:11:56,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:11:48" (3/4) ... [2018-11-28 12:11:56,772 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:11:56,777 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-28 12:11:56,777 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification4_spec__1 [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:11:56,778 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-28 12:11:56,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-28 12:11:56,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-28 12:11:56,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-28 12:11:56,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-28 12:11:56,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-28 12:11:56,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-28 12:11:56,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-28 12:11:56,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-28 12:11:56,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-28 12:11:56,779 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-28 12:11:56,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-28 12:11:56,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-28 12:11:56,780 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2018-11-28 12:11:56,788 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-28 12:11:56,789 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-28 12:11:56,789 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-28 12:11:56,790 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 12:11:56,790 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 12:11:56,790 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:11:56,810 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-28 12:11:56,810 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-28 12:11:56,842 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_be336116-f4d1-4f06-ad6e-828e4f921957/bin-2019/uautomizer/witness.graphml [2018-11-28 12:11:56,842 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:11:56,843 INFO L168 Benchmark]: Toolchain (without parser) took 9422.08 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 416.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -114.9 MB). Peak memory consumption was 301.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:11:56,843 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:11:56,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:11:56,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:11:56,844 INFO L168 Benchmark]: Boogie Preprocessor took 31.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:11:56,844 INFO L168 Benchmark]: RCFGBuilder took 523.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:11:56,844 INFO L168 Benchmark]: TraceAbstraction took 8400.26 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 263.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 535.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:11:56,844 INFO L168 Benchmark]: Witness Printer took 73.84 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:11:56,849 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 363.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -190.0 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.20 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 523.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8400.26 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 263.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.2 MB). Peak memory consumption was 535.5 MB. Max. memory is 11.5 GB. * Witness Printer took 73.84 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 953]: 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: 392]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((((((2 <= waterLevel && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (((0 == pumpRunning && 1 <= waterLevel) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 163 locations, 1 error locations. SAFE Result, 8.3s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 3.7s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 2361 SDtfs, 2031 SDslu, 7487 SDs, 0 SdLazy, 4577 SolverSat, 955 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 961 GetRequests, 837 SyntacticMatches, 3 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1340occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 424 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 68 LocationsWithAnnotation, 2173 PreInvPairs, 2255 NumberOfFragments, 1455 HoareAnnotationTreeSize, 2173 FomulaSimplifications, 6975 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 68 FomulaSimplificationsInter, 10641 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 2167 NumberOfCodeBlocks, 2167 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 2150 ConstructedInterpolants, 0 QuantifiedInterpolants, 436375 SizeOfPredicates, 11 NumberOfNonLiveVariables, 4439 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 510/546 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...