./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product37_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product37_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1b0c0c83f247eef1881f0b5170efc2ede9b08897 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 08:02:21,930 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:02:21,931 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:02:21,937 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:02:21,937 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:02:21,938 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:02:21,939 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:02:21,940 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:02:21,941 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:02:21,941 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:02:21,950 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:02:21,950 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:02:21,951 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:02:21,952 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:02:21,953 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:02:21,953 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:02:21,954 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:02:21,955 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:02:21,956 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:02:21,957 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:02:21,958 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:02:21,959 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:02:21,961 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:02:21,961 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:02:21,961 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:02:21,961 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:02:21,962 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:02:21,963 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:02:21,963 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:02:21,964 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:02:21,964 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:02:21,965 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:02:21,965 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:02:21,965 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:02:21,966 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:02:21,966 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:02:21,966 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 08:02:21,976 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:02:21,977 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:02:21,977 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 08:02:21,977 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 08:02:21,978 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 08:02:21,978 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 08:02:21,978 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 08:02:21,978 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 08:02:21,978 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 08:02:21,978 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 08:02:21,978 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 08:02:21,978 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 08:02:21,979 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 08:02:21,979 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:02:21,979 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 08:02:21,979 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:02:21,980 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 08:02:21,980 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:02:21,980 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 08:02:21,980 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 08:02:21,980 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 08:02:21,980 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 08:02:21,980 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:02:21,981 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:02:21,981 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 08:02:21,981 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:02:21,981 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:02:21,981 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 08:02:21,981 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 08:02:21,981 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:02:21,982 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:02:21,982 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 08:02:21,982 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 08:02:21,982 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 08:02:21,982 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 08:02:21,982 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 08:02:21,982 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 08:02:21,982 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b0c0c83f247eef1881f0b5170efc2ede9b08897 [2018-11-23 08:02:22,004 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:02:22,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:02:22,014 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:02:22,015 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:02:22,015 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:02:22,015 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product37_true-unreach-call_false-termination.cil.c [2018-11-23 08:02:22,050 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/data/8a007e223/d5d1d7254cad4f07afd115a85e4d59ff/FLAG007f1ec0a [2018-11-23 08:02:22,486 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:02:22,487 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/sv-benchmarks/c/product-lines/minepump_spec3_product37_true-unreach-call_false-termination.cil.c [2018-11-23 08:02:22,497 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/data/8a007e223/d5d1d7254cad4f07afd115a85e4d59ff/FLAG007f1ec0a [2018-11-23 08:02:22,509 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/data/8a007e223/d5d1d7254cad4f07afd115a85e4d59ff [2018-11-23 08:02:22,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:02:22,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:02:22,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:02:22,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:02:22,517 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:02:22,517 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,519 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c8583ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22, skipping insertion in model container [2018-11-23 08:02:22,519 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:02:22,565 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:02:22,761 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:02:22,770 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:02:22,872 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:02:22,893 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:02:22,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22 WrapperNode [2018-11-23 08:02:22,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:02:22,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:02:22,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:02:22,894 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:02:22,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:02:22,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:02:22,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:02:22,921 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:02:22,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (1/1) ... [2018-11-23 08:02:22,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:02:22,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:02:22,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:02:22,950 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:02:22,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 08:02:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 08:02:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 08:02:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 08:02:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 08:02:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 08:02:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 08:02:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 08:02:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 08:02:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 08:02:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 08:02:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 08:02:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 08:02:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 08:02:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 08:02:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 08:02:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 08:02:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 08:02:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-23 08:02:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-23 08:02:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 08:02:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 08:02:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-23 08:02:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-23 08:02:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 08:02:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 08:02:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 08:02:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 08:02:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 08:02:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 08:02:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 08:02:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 08:02:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 08:02:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 08:02:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 08:02:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 08:02:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 08:02:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 08:02:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 08:02:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 08:02:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 08:02:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 08:02:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-23 08:02:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-23 08:02:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 08:02:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 08:02:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 08:02:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 08:02:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 08:02:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 08:02:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 08:02:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-11-23 08:02:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-11-23 08:02:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 08:02:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 08:02:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:02:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:02:23,377 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:02:23,377 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 08:02:23,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:23 BoogieIcfgContainer [2018-11-23 08:02:23,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:02:23,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 08:02:23,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 08:02:23,380 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 08:02:23,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:02:22" (1/3) ... [2018-11-23 08:02:23,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c292949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:02:23, skipping insertion in model container [2018-11-23 08:02:23,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:02:22" (2/3) ... [2018-11-23 08:02:23,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c292949 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:02:23, skipping insertion in model container [2018-11-23 08:02:23,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:23" (3/3) ... [2018-11-23 08:02:23,383 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product37_true-unreach-call_false-termination.cil.c [2018-11-23 08:02:23,389 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 08:02:23,396 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 08:02:23,406 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 08:02:23,427 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 08:02:23,427 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 08:02:23,427 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 08:02:23,427 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:02:23,427 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:02:23,428 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 08:02:23,428 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:02:23,428 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 08:02:23,442 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2018-11-23 08:02:23,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 08:02:23,449 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:23,450 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] [2018-11-23 08:02:23,452 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:23,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:23,456 INFO L82 PathProgramCache]: Analyzing trace with hash -627284051, now seen corresponding path program 1 times [2018-11-23 08:02:23,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:23,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:23,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:23,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:23,486 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:02:23,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:02:23,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 08:02:23,642 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:23,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 08:02:23,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 08:02:23,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 08:02:23,657 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 2 states. [2018-11-23 08:02:23,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:23,680 INFO L93 Difference]: Finished difference Result 258 states and 321 transitions. [2018-11-23 08:02:23,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 08:02:23,681 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-11-23 08:02:23,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:23,691 INFO L225 Difference]: With dead ends: 258 [2018-11-23 08:02:23,691 INFO L226 Difference]: Without dead ends: 129 [2018-11-23 08:02:23,694 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 [2018-11-23 08:02:23,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-11-23 08:02:23,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-11-23 08:02:23,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-11-23 08:02:23,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions. [2018-11-23 08:02:23,725 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 52 [2018-11-23 08:02:23,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:23,725 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 152 transitions. [2018-11-23 08:02:23,725 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 08:02:23,725 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions. [2018-11-23 08:02:23,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-23 08:02:23,727 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:23,727 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] [2018-11-23 08:02:23,727 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:23,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:23,728 INFO L82 PathProgramCache]: Analyzing trace with hash -831667335, now seen corresponding path program 1 times [2018-11-23 08:02:23,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:23,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:23,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:23,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:23,729 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:23,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:02:23,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:02:23,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 08:02:23,805 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:23,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 08:02:23,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 08:02:23,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 08:02:23,807 INFO L87 Difference]: Start difference. First operand 129 states and 152 transitions. Second operand 3 states. [2018-11-23 08:02:23,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:23,828 INFO L93 Difference]: Finished difference Result 207 states and 243 transitions. [2018-11-23 08:02:23,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 08:02:23,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-11-23 08:02:23,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:23,830 INFO L225 Difference]: With dead ends: 207 [2018-11-23 08:02:23,830 INFO L226 Difference]: Without dead ends: 120 [2018-11-23 08:02:23,831 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 [2018-11-23 08:02:23,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-11-23 08:02:23,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-11-23 08:02:23,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-11-23 08:02:23,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2018-11-23 08:02:23,838 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 53 [2018-11-23 08:02:23,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:23,839 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2018-11-23 08:02:23,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 08:02:23,839 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2018-11-23 08:02:23,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-11-23 08:02:23,840 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:23,840 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] [2018-11-23 08:02:23,840 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:23,840 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:23,840 INFO L82 PathProgramCache]: Analyzing trace with hash 276108552, now seen corresponding path program 1 times [2018-11-23 08:02:23,840 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:23,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:23,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:23,841 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:23,841 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:23,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:02:23,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:02:23,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 08:02:23,959 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:23,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 08:02:23,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 08:02:23,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-23 08:02:23,960 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 7 states. [2018-11-23 08:02:24,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:24,184 INFO L93 Difference]: Finished difference Result 216 states and 257 transitions. [2018-11-23 08:02:24,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 08:02:24,185 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-11-23 08:02:24,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:24,186 INFO L225 Difference]: With dead ends: 216 [2018-11-23 08:02:24,186 INFO L226 Difference]: Without dead ends: 120 [2018-11-23 08:02:24,187 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-23 08:02:24,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-11-23 08:02:24,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-11-23 08:02:24,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-11-23 08:02:24,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2018-11-23 08:02:24,197 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 57 [2018-11-23 08:02:24,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:24,198 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2018-11-23 08:02:24,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 08:02:24,198 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2018-11-23 08:02:24,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-23 08:02:24,200 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:24,200 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] [2018-11-23 08:02:24,200 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:24,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:24,200 INFO L82 PathProgramCache]: Analyzing trace with hash 984213394, now seen corresponding path program 1 times [2018-11-23 08:02:24,201 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:24,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:24,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:24,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:24,202 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:24,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:02:24,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:02:24,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 08:02:24,292 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:24,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 08:02:24,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 08:02:24,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 08:02:24,292 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 5 states. [2018-11-23 08:02:24,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:24,577 INFO L93 Difference]: Finished difference Result 322 states and 389 transitions. [2018-11-23 08:02:24,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 08:02:24,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-11-23 08:02:24,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:24,579 INFO L225 Difference]: With dead ends: 322 [2018-11-23 08:02:24,580 INFO L226 Difference]: Without dead ends: 226 [2018-11-23 08:02:24,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 08:02:24,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2018-11-23 08:02:24,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 208. [2018-11-23 08:02:24,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2018-11-23 08:02:24,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 238 transitions. [2018-11-23 08:02:24,602 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 238 transitions. Word has length 70 [2018-11-23 08:02:24,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:24,602 INFO L480 AbstractCegarLoop]: Abstraction has 208 states and 238 transitions. [2018-11-23 08:02:24,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 08:02:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 238 transitions. [2018-11-23 08:02:24,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-23 08:02:24,604 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:24,604 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] [2018-11-23 08:02:24,605 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:24,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:24,606 INFO L82 PathProgramCache]: Analyzing trace with hash -13182587, now seen corresponding path program 1 times [2018-11-23 08:02:24,606 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:24,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:24,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:24,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:24,607 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:24,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:02:24,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:02:24,685 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 08:02:24,685 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:24,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 08:02:24,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 08:02:24,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 08:02:24,687 INFO L87 Difference]: Start difference. First operand 208 states and 238 transitions. Second operand 6 states. [2018-11-23 08:02:24,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:24,803 INFO L93 Difference]: Finished difference Result 504 states and 609 transitions. [2018-11-23 08:02:24,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 08:02:24,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-11-23 08:02:24,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:24,809 INFO L225 Difference]: With dead ends: 504 [2018-11-23 08:02:24,809 INFO L226 Difference]: Without dead ends: 320 [2018-11-23 08:02:24,811 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 08:02:24,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2018-11-23 08:02:24,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 316. [2018-11-23 08:02:24,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2018-11-23 08:02:24,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 368 transitions. [2018-11-23 08:02:24,837 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 368 transitions. Word has length 84 [2018-11-23 08:02:24,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:24,854 INFO L480 AbstractCegarLoop]: Abstraction has 316 states and 368 transitions. [2018-11-23 08:02:24,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 08:02:24,855 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 368 transitions. [2018-11-23 08:02:24,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-23 08:02:24,856 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:24,856 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:02:24,856 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:24,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:24,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1190699199, now seen corresponding path program 1 times [2018-11-23 08:02:24,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:24,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:24,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:24,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:24,858 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:24,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:02:24,948 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:02:24,949 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 08:02:24,949 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:24,949 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 08:02:24,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 08:02:24,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 08:02:24,949 INFO L87 Difference]: Start difference. First operand 316 states and 368 transitions. Second operand 6 states. [2018-11-23 08:02:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:25,077 INFO L93 Difference]: Finished difference Result 679 states and 825 transitions. [2018-11-23 08:02:25,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 08:02:25,078 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-11-23 08:02:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:25,080 INFO L225 Difference]: With dead ends: 679 [2018-11-23 08:02:25,080 INFO L226 Difference]: Without dead ends: 495 [2018-11-23 08:02:25,081 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 08:02:25,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2018-11-23 08:02:25,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 477. [2018-11-23 08:02:25,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2018-11-23 08:02:25,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 569 transitions. [2018-11-23 08:02:25,109 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 569 transitions. Word has length 88 [2018-11-23 08:02:25,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:25,110 INFO L480 AbstractCegarLoop]: Abstraction has 477 states and 569 transitions. [2018-11-23 08:02:25,110 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 08:02:25,110 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 569 transitions. [2018-11-23 08:02:25,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-23 08:02:25,111 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:25,111 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:02:25,112 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:25,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:25,112 INFO L82 PathProgramCache]: Analyzing trace with hash 268015616, now seen corresponding path program 1 times [2018-11-23 08:02:25,112 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:25,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:25,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:25,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:25,113 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:25,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:02:25,170 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:02:25,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 08:02:25,170 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:25,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 08:02:25,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 08:02:25,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 08:02:25,171 INFO L87 Difference]: Start difference. First operand 477 states and 569 transitions. Second operand 5 states. [2018-11-23 08:02:25,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:25,193 INFO L93 Difference]: Finished difference Result 832 states and 1014 transitions. [2018-11-23 08:02:25,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 08:02:25,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2018-11-23 08:02:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:25,196 INFO L225 Difference]: With dead ends: 832 [2018-11-23 08:02:25,196 INFO L226 Difference]: Without dead ends: 487 [2018-11-23 08:02:25,196 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 08:02:25,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-11-23 08:02:25,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 481. [2018-11-23 08:02:25,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-11-23 08:02:25,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 572 transitions. [2018-11-23 08:02:25,214 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 572 transitions. Word has length 88 [2018-11-23 08:02:25,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:25,215 INFO L480 AbstractCegarLoop]: Abstraction has 481 states and 572 transitions. [2018-11-23 08:02:25,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 08:02:25,215 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 572 transitions. [2018-11-23 08:02:25,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-23 08:02:25,216 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:25,216 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:02:25,217 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:25,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:25,217 INFO L82 PathProgramCache]: Analyzing trace with hash -575989886, now seen corresponding path program 1 times [2018-11-23 08:02:25,217 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:25,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:25,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:25,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:25,218 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:25,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:02:25,307 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:02:25,307 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 08:02:25,307 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:25,307 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 08:02:25,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 08:02:25,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-23 08:02:25,308 INFO L87 Difference]: Start difference. First operand 481 states and 572 transitions. Second operand 9 states. [2018-11-23 08:02:25,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:25,349 INFO L93 Difference]: Finished difference Result 944 states and 1146 transitions. [2018-11-23 08:02:25,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-23 08:02:25,349 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2018-11-23 08:02:25,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:25,351 INFO L225 Difference]: With dead ends: 944 [2018-11-23 08:02:25,351 INFO L226 Difference]: Without dead ends: 487 [2018-11-23 08:02:25,352 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-11-23 08:02:25,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-11-23 08:02:25,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 481. [2018-11-23 08:02:25,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-11-23 08:02:25,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 570 transitions. [2018-11-23 08:02:25,370 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 570 transitions. Word has length 88 [2018-11-23 08:02:25,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:25,370 INFO L480 AbstractCegarLoop]: Abstraction has 481 states and 570 transitions. [2018-11-23 08:02:25,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 08:02:25,370 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 570 transitions. [2018-11-23 08:02:25,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-23 08:02:25,372 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:25,372 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 08:02:25,372 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:25,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:25,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1204861054, now seen corresponding path program 1 times [2018-11-23 08:02:25,372 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:25,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:25,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:25,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:25,373 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:25,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:02:25,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 08:02:25,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-23 08:02:25,455 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:25,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-23 08:02:25,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-23 08:02:25,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-23 08:02:25,456 INFO L87 Difference]: Start difference. First operand 481 states and 570 transitions. Second operand 10 states. [2018-11-23 08:02:25,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:25,581 INFO L93 Difference]: Finished difference Result 944 states and 1122 transitions. [2018-11-23 08:02:25,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 08:02:25,582 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2018-11-23 08:02:25,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:25,583 INFO L225 Difference]: With dead ends: 944 [2018-11-23 08:02:25,583 INFO L226 Difference]: Without dead ends: 487 [2018-11-23 08:02:25,584 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-23 08:02:25,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-11-23 08:02:25,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 470. [2018-11-23 08:02:25,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 470 states. [2018-11-23 08:02:25,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 539 transitions. [2018-11-23 08:02:25,600 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 539 transitions. Word has length 89 [2018-11-23 08:02:25,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:25,600 INFO L480 AbstractCegarLoop]: Abstraction has 470 states and 539 transitions. [2018-11-23 08:02:25,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-23 08:02:25,600 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 539 transitions. [2018-11-23 08:02:25,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-23 08:02:25,602 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:25,603 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-11-23 08:02:25,603 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:25,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:25,603 INFO L82 PathProgramCache]: Analyzing trace with hash 619957596, now seen corresponding path program 1 times [2018-11-23 08:02:25,603 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:25,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:25,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:25,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:25,604 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:25,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:25,647 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 08:02:25,647 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:02:25,647 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 08:02:25,648 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 133 with the following transitions: [2018-11-23 08:02:25,649 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [23], [25], [26], [27], [28], [29], [32], [34], [35], [38], [40], [43], [50], [53], [55], [64], [68], [72], [78], [80], [86], [88], [91], [106], [107], [108], [109], [110], [111], [112], [114], [117], [121], [122], [130], [131], [134], [137], [141], [147], [174], [176], [179], [181], [183], [186], [188], [193], [199], [202], [206], [207], [211], [214], [216], [219], [229], [237], [240], [241], [242], [243], [244], [245], [246], [247], [248], [250], [252], [253], [254], [255], [256], [257], [260], [261], [266], [267], [270], [271], [272], [273], [274], [275], [276], [277], [282], [283], [284], [285], [286], [287], [288], [290], [291], [292], [294], [295], [296], [297] [2018-11-23 08:02:25,680 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 08:02:25,680 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 08:02:26,030 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 08:02:26,031 INFO L272 AbstractInterpreter]: Visited 57 different actions 57 times. Never merged. Never widened. Performed 1947 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1947 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 08:02:26,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:26,054 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 08:02:26,332 INFO L227 lantSequenceWeakener]: Weakened 67 states. On average, predicates are now at 96.45% of their original sizes. [2018-11-23 08:02:26,332 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 08:02:26,435 INFO L415 sIntCurrentIteration]: We unified 131 AI predicates to 131 [2018-11-23 08:02:26,435 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 08:02:26,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 08:02:26,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-23 08:02:26,436 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:26,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 08:02:26,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 08:02:26,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-11-23 08:02:26,437 INFO L87 Difference]: Start difference. First operand 470 states and 539 transitions. Second operand 13 states. [2018-11-23 08:02:27,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:27,865 INFO L93 Difference]: Finished difference Result 977 states and 1130 transitions. [2018-11-23 08:02:27,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-23 08:02:27,865 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 132 [2018-11-23 08:02:27,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:27,867 INFO L225 Difference]: With dead ends: 977 [2018-11-23 08:02:27,867 INFO L226 Difference]: Without dead ends: 531 [2018-11-23 08:02:27,868 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 138 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-11-23 08:02:27,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2018-11-23 08:02:27,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 529. [2018-11-23 08:02:27,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 529 states. [2018-11-23 08:02:27,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 604 transitions. [2018-11-23 08:02:27,883 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 604 transitions. Word has length 132 [2018-11-23 08:02:27,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:27,883 INFO L480 AbstractCegarLoop]: Abstraction has 529 states and 604 transitions. [2018-11-23 08:02:27,883 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 08:02:27,883 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 604 transitions. [2018-11-23 08:02:27,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-23 08:02:27,885 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:27,885 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-11-23 08:02:27,885 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:27,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:27,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1601747912, now seen corresponding path program 1 times [2018-11-23 08:02:27,885 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:27,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:27,886 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:27,886 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:27,886 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 08:02:27,928 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:02:27,929 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 08:02:27,929 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-23 08:02:27,929 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [23], [25], [26], [27], [28], [29], [32], [34], [35], [38], [40], [43], [50], [53], [55], [64], [68], [72], [78], [80], [83], [86], [88], [91], [106], [107], [108], [109], [110], [111], [112], [114], [117], [121], [122], [127], [129], [130], [131], [134], [137], [141], [147], [174], [176], [179], [181], [183], [186], [188], [193], [199], [202], [206], [207], [211], [214], [216], [219], [229], [237], [240], [241], [242], [243], [244], [245], [246], [247], [248], [250], [252], [253], [254], [255], [256], [257], [260], [261], [264], [265], [266], [267], [270], [271], [272], [273], [274], [275], [276], [277], [282], [283], [284], [285], [286], [287], [288], [290], [291], [292], [294], [295], [296], [297] [2018-11-23 08:02:27,932 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 08:02:27,932 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 08:02:28,153 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 08:02:28,154 INFO L272 AbstractInterpreter]: Visited 62 different actions 89 times. Merged at 3 different actions 3 times. Never widened. Performed 4647 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4647 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 08:02:28,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:28,158 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 08:02:28,315 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.44% of their original sizes. [2018-11-23 08:02:28,315 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 08:02:28,408 INFO L415 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-11-23 08:02:28,408 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 08:02:28,408 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 08:02:28,408 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-23 08:02:28,408 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:28,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 08:02:28,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 08:02:28,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-11-23 08:02:28,410 INFO L87 Difference]: Start difference. First operand 529 states and 604 transitions. Second operand 16 states. [2018-11-23 08:02:30,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:30,306 INFO L93 Difference]: Finished difference Result 988 states and 1141 transitions. [2018-11-23 08:02:30,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-23 08:02:30,306 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 136 [2018-11-23 08:02:30,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:30,309 INFO L225 Difference]: With dead ends: 988 [2018-11-23 08:02:30,309 INFO L226 Difference]: Without dead ends: 542 [2018-11-23 08:02:30,311 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 150 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2018-11-23 08:02:30,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2018-11-23 08:02:30,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 471. [2018-11-23 08:02:30,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2018-11-23 08:02:30,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 529 transitions. [2018-11-23 08:02:30,339 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 529 transitions. Word has length 136 [2018-11-23 08:02:30,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:30,339 INFO L480 AbstractCegarLoop]: Abstraction has 471 states and 529 transitions. [2018-11-23 08:02:30,339 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 08:02:30,339 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 529 transitions. [2018-11-23 08:02:30,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-23 08:02:30,341 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:30,342 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-11-23 08:02:30,342 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:30,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:30,343 INFO L82 PathProgramCache]: Analyzing trace with hash 1654159510, now seen corresponding path program 1 times [2018-11-23 08:02:30,343 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:30,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:30,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:30,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:30,344 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:30,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-11-23 08:02:30,409 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:02:30,409 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 08:02:30,409 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-23 08:02:30,410 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [23], [25], [26], [27], [28], [29], [32], [34], [35], [38], [40], [43], [50], [53], [55], [64], [68], [72], [75], [78], [80], [86], [88], [91], [106], [107], [108], [109], [110], [111], [112], [114], [117], [121], [122], [130], [131], [134], [137], [141], [147], [174], [176], [179], [181], [183], [186], [188], [193], [199], [202], [206], [207], [211], [214], [216], [219], [229], [232], [236], [237], [240], [241], [242], [243], [244], [245], [246], [247], [248], [250], [252], [253], [254], [255], [256], [257], [260], [261], [262], [263], [266], [267], [270], [271], [272], [273], [274], [275], [276], [277], [282], [283], [284], [285], [286], [287], [288], [290], [291], [292], [294], [295], [296], [297] [2018-11-23 08:02:30,413 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 08:02:30,413 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 08:02:30,738 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-23 08:02:30,738 INFO L272 AbstractInterpreter]: Visited 62 different actions 91 times. Merged at 5 different actions 5 times. Never widened. Performed 4658 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4658 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 08:02:30,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:30,754 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-23 08:02:30,945 INFO L227 lantSequenceWeakener]: Weakened 71 states. On average, predicates are now at 96.45% of their original sizes. [2018-11-23 08:02:30,945 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-23 08:02:31,063 INFO L415 sIntCurrentIteration]: We unified 135 AI predicates to 135 [2018-11-23 08:02:31,063 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-23 08:02:31,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 08:02:31,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-23 08:02:31,064 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 08:02:31,064 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-23 08:02:31,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-23 08:02:31,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-11-23 08:02:31,064 INFO L87 Difference]: Start difference. First operand 471 states and 529 transitions. Second operand 16 states. [2018-11-23 08:02:32,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:32,748 INFO L93 Difference]: Finished difference Result 938 states and 1082 transitions. [2018-11-23 08:02:32,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-23 08:02:32,748 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 136 [2018-11-23 08:02:32,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:32,750 INFO L225 Difference]: With dead ends: 938 [2018-11-23 08:02:32,750 INFO L226 Difference]: Without dead ends: 615 [2018-11-23 08:02:32,751 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 143 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=114, Invalid=438, Unknown=0, NotChecked=0, Total=552 [2018-11-23 08:02:32,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2018-11-23 08:02:32,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 613. [2018-11-23 08:02:32,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2018-11-23 08:02:32,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 691 transitions. [2018-11-23 08:02:32,770 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 691 transitions. Word has length 136 [2018-11-23 08:02:32,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:32,770 INFO L480 AbstractCegarLoop]: Abstraction has 613 states and 691 transitions. [2018-11-23 08:02:32,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-23 08:02:32,770 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 691 transitions. [2018-11-23 08:02:32,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-11-23 08:02:32,772 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 08:02:32,772 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 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] [2018-11-23 08:02:32,773 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 08:02:32,773 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:32,773 INFO L82 PathProgramCache]: Analyzing trace with hash 538393945, now seen corresponding path program 1 times [2018-11-23 08:02:32,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 08:02:32,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:32,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:32,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:02:32,774 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 08:02:32,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:32,862 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 08:02:32,863 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:02:32,863 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 08:02:32,863 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2018-11-23 08:02:32,863 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [23], [25], [26], [27], [28], [29], [33], [34], [35], [38], [40], [43], [50], [53], [55], [64], [68], [72], [75], [78], [80], [86], [88], [91], [106], [107], [108], [109], [110], [111], [112], [114], [119], [121], [122], [130], [131], [134], [137], [141], [147], [174], [176], [179], [181], [183], [186], [188], [193], [199], [202], [206], [207], [211], [214], [216], [219], [229], [232], [236], [237], [240], [241], [242], [243], [244], [245], [246], [247], [248], [250], [252], [253], [254], [255], [256], [257], [260], [261], [262], [263], [266], [267], [270], [271], [272], [273], [274], [275], [276], [277], [282], [283], [284], [285], [286], [287], [288], [290], [291], [292], [294], [295], [296], [297] [2018-11-23 08:02:32,868 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 08:02:32,868 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 08:02:33,146 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 08:02:33,147 INFO L272 AbstractInterpreter]: Visited 93 different actions 113 times. Merged at 5 different actions 5 times. Never widened. Performed 6169 root evaluator evaluations with a maximum evaluation depth of 3. Performed 6169 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-23 08:02:33,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:02:33,149 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 08:02:33,149 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 08:02:33,149 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 08:02:33,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:02:33,167 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 08:02:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:02:33,253 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:02:33,376 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-23 08:02:33,376 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 08:02:33,634 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 08:02:33,650 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-23 08:02:33,650 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 11] total 20 [2018-11-23 08:02:33,650 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-23 08:02:33,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-23 08:02:33,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-23 08:02:33,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=313, Unknown=0, NotChecked=0, Total=380 [2018-11-23 08:02:33,651 INFO L87 Difference]: Start difference. First operand 613 states and 691 transitions. Second operand 15 states. [2018-11-23 08:02:35,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 08:02:35,143 INFO L93 Difference]: Finished difference Result 1806 states and 2473 transitions. [2018-11-23 08:02:35,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-23 08:02:35,143 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 136 [2018-11-23 08:02:35,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 08:02:35,144 INFO L225 Difference]: With dead ends: 1806 [2018-11-23 08:02:35,144 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 08:02:35,148 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 262 SyntacticMatches, 12 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=1868, Unknown=0, NotChecked=0, Total=2352 [2018-11-23 08:02:35,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 08:02:35,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 08:02:35,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 08:02:35,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 08:02:35,149 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 136 [2018-11-23 08:02:35,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 08:02:35,149 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:02:35,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-23 08:02:35,150 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 08:02:35,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 08:02:35,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 08:02:35,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,271 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,274 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,397 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,406 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,409 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:35,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 08:02:36,483 WARN L180 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2018-11-23 08:02:36,598 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 35 [2018-11-23 08:02:37,003 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2018-11-23 08:02:37,174 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 33 [2018-11-23 08:02:37,378 WARN L180 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 43 [2018-11-23 08:02:37,696 WARN L180 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2018-11-23 08:02:37,870 WARN L180 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 42 [2018-11-23 08:02:38,231 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 33 [2018-11-23 08:02:38,369 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 917 923) the Hoare annotation is: true [2018-11-23 08:02:38,369 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 917 923) no Hoare annotation was computed. [2018-11-23 08:02:38,369 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 924 932) no Hoare annotation was computed. [2018-11-23 08:02:38,369 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 924 932) the Hoare annotation is: true [2018-11-23 08:02:38,369 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 924 932) no Hoare annotation was computed. [2018-11-23 08:02:38,369 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 137) no Hoare annotation was computed. [2018-11-23 08:02:38,369 INFO L448 ceAbstractionStarter]: For program point L128(line 128) no Hoare annotation was computed. [2018-11-23 08:02:38,369 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 08:02:38,369 INFO L444 ceAbstractionStarter]: At program point L126(line 126) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 08:02:38,369 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 120 142) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 08:02:38,369 INFO L444 ceAbstractionStarter]: At program point L126-1(line 126) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 08:02:38,370 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 120 142) no Hoare annotation was computed. [2018-11-23 08:02:38,370 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 120 142) no Hoare annotation was computed. [2018-11-23 08:02:38,370 INFO L444 ceAbstractionStarter]: At program point L132(line 132) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= main_~tmp~0 1) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 08:02:38,370 INFO L444 ceAbstractionStarter]: At program point L132-1(line 132) the Hoare annotation is: (or (and (= ~methaneLevelCritical~0 0) (= main_~tmp~0 1) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 08:02:38,370 INFO L448 ceAbstractionStarter]: For program point L130(lines 130 137) no Hoare annotation was computed. [2018-11-23 08:02:38,370 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 631 639) no Hoare annotation was computed. [2018-11-23 08:02:38,370 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 631 639) the Hoare annotation is: true [2018-11-23 08:02:38,370 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 631 639) no Hoare annotation was computed. [2018-11-23 08:02:38,370 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 910 916) no Hoare annotation was computed. [2018-11-23 08:02:38,370 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 910 916) the Hoare annotation is: true [2018-11-23 08:02:38,370 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 107 116) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 08:02:38,370 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 107 116) no Hoare annotation was computed. [2018-11-23 08:02:38,371 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 107 116) no Hoare annotation was computed. [2018-11-23 08:02:38,371 INFO L451 ceAbstractionStarter]: At program point L625(line 625) the Hoare annotation is: true [2018-11-23 08:02:38,371 INFO L448 ceAbstractionStarter]: For program point L625-1(line 625) no Hoare annotation was computed. [2018-11-23 08:02:38,371 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 620 630) the Hoare annotation is: true [2018-11-23 08:02:38,371 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 620 630) no Hoare annotation was computed. [2018-11-23 08:02:38,371 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 620 630) no Hoare annotation was computed. [2018-11-23 08:02:38,371 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 612 619) the Hoare annotation is: (or (< 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 1 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1))) [2018-11-23 08:02:38,371 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 612 619) no Hoare annotation was computed. [2018-11-23 08:02:38,371 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 612 619) no Hoare annotation was computed. [2018-11-23 08:02:38,371 INFO L448 ceAbstractionStarter]: For program point L845(lines 845 851) no Hoare annotation was computed. [2018-11-23 08:02:38,371 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 841 854) no Hoare annotation was computed. [2018-11-23 08:02:38,371 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 841 854) the Hoare annotation is: true [2018-11-23 08:02:38,371 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 841 854) no Hoare annotation was computed. [2018-11-23 08:02:38,371 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 579 603) no Hoare annotation was computed. [2018-11-23 08:02:38,372 INFO L444 ceAbstractionStarter]: At program point L598(line 598) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< 1 ~waterLevel~0) (not (= 1 |old(~pumpRunning~0)|)) .cse0) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (< 2 ~waterLevel~0) .cse0))) [2018-11-23 08:02:38,372 INFO L448 ceAbstractionStarter]: For program point L598-1(lines 579 603) no Hoare annotation was computed. [2018-11-23 08:02:38,372 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 579 603) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) (< 2 ~waterLevel~0) .cse1) (or (< 1 ~waterLevel~0) .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1))) [2018-11-23 08:02:38,372 INFO L444 ceAbstractionStarter]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (< 2 ~waterLevel~0) .cse0) (or (< 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2018-11-23 08:02:38,372 INFO L444 ceAbstractionStarter]: At program point L589(line 589) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (< 2 ~waterLevel~0) .cse0) (or (< 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2018-11-23 08:02:38,372 INFO L448 ceAbstractionStarter]: For program point L587(lines 587 595) no Hoare annotation was computed. [2018-11-23 08:02:38,372 INFO L444 ceAbstractionStarter]: At program point L585(line 585) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (< 2 ~waterLevel~0) .cse0) (or (< 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2018-11-23 08:02:38,372 INFO L448 ceAbstractionStarter]: For program point L585-1(line 585) no Hoare annotation was computed. [2018-11-23 08:02:38,372 INFO L448 ceAbstractionStarter]: For program point L583(lines 583 600) no Hoare annotation was computed. [2018-11-23 08:02:38,372 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 545 551) no Hoare annotation was computed. [2018-11-23 08:02:38,372 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 545 551) the Hoare annotation is: true [2018-11-23 08:02:38,373 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 696 759) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 08:02:38,373 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 696 759) no Hoare annotation was computed. [2018-11-23 08:02:38,373 INFO L444 ceAbstractionStarter]: At program point L752(lines 705 753) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 08:02:38,373 INFO L448 ceAbstractionStarter]: For program point L742(lines 742 746) no Hoare annotation was computed. [2018-11-23 08:02:38,373 INFO L444 ceAbstractionStarter]: At program point L742-2(lines 736 747) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and .cse0 (= ~pumpRunning~0 1) .cse1) (not (= ~systemActive~0 1)) (and (= 0 ~pumpRunning~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 08:02:38,373 INFO L448 ceAbstractionStarter]: For program point L707(lines 706 751) no Hoare annotation was computed. [2018-11-23 08:02:38,373 INFO L448 ceAbstractionStarter]: For program point L736(lines 736 747) no Hoare annotation was computed. [2018-11-23 08:02:38,373 INFO L444 ceAbstractionStarter]: At program point L728(line 728) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and .cse0 (= ~pumpRunning~0 1) .cse1) (not (= ~systemActive~0 1)) (and (= 0 ~pumpRunning~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 08:02:38,373 INFO L448 ceAbstractionStarter]: For program point L726(lines 726 732) no Hoare annotation was computed. [2018-11-23 08:02:38,373 INFO L448 ceAbstractionStarter]: For program point L726-1(lines 726 732) no Hoare annotation was computed. [2018-11-23 08:02:38,373 INFO L444 ceAbstractionStarter]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (<= ~waterLevel~0 2) (= ~pumpRunning~0 1) .cse0) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 08:02:38,374 INFO L444 ceAbstractionStarter]: At program point L749(lines 706 751) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (<= ~waterLevel~0 2) (= ~pumpRunning~0 1) .cse0) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) .cse0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 08:02:38,374 INFO L448 ceAbstractionStarter]: For program point L716(lines 716 722) no Hoare annotation was computed. [2018-11-23 08:02:38,374 INFO L448 ceAbstractionStarter]: For program point L716-1(lines 716 722) no Hoare annotation was computed. [2018-11-23 08:02:38,374 INFO L448 ceAbstractionStarter]: For program point L708(lines 708 712) no Hoare annotation was computed. [2018-11-23 08:02:38,374 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 696 759) no Hoare annotation was computed. [2018-11-23 08:02:38,374 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:02:38,374 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)) [2018-11-23 08:02:38,374 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:02:38,374 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 604 611) no Hoare annotation was computed. [2018-11-23 08:02:38,374 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 604 611) no Hoare annotation was computed. [2018-11-23 08:02:38,374 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 604 611) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< 2 ~waterLevel~0) (not (= ~systemActive~0 1))) [2018-11-23 08:02:38,374 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 832 840) the Hoare annotation is: true [2018-11-23 08:02:38,375 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 832 840) no Hoare annotation was computed. [2018-11-23 08:02:38,375 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 832 840) no Hoare annotation was computed. [2018-11-23 08:02:38,375 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 676 694) no Hoare annotation was computed. [2018-11-23 08:02:38,375 INFO L448 ceAbstractionStarter]: For program point L685(lines 685 689) no Hoare annotation was computed. [2018-11-23 08:02:38,375 INFO L451 ceAbstractionStarter]: At program point L683(line 683) the Hoare annotation is: true [2018-11-23 08:02:38,375 INFO L448 ceAbstractionStarter]: For program point L685-2(lines 685 689) no Hoare annotation was computed. [2018-11-23 08:02:38,375 INFO L448 ceAbstractionStarter]: For program point L683-1(line 683) no Hoare annotation was computed. [2018-11-23 08:02:38,375 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 676 694) the Hoare annotation is: true [2018-11-23 08:02:38,375 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 676 694) no Hoare annotation was computed. [2018-11-23 08:02:38,375 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 788 799) the Hoare annotation is: (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0)) (.cse4 (not (= ~systemActive~0 1))) (.cse5 (= 0 ~methaneLevelCritical~0))) (let ((.cse0 (not .cse5)) (.cse7 (or (not (= 1 ~pumpRunning~0)) .cse4)) (.cse3 (< 2 ~waterLevel~0)) (.cse6 (not .cse2)) (.cse1 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse3 .cse4 .cse6) (or .cse7 .cse2 .cse3 .cse0) (or (= ~methaneLevelCritical~0 0) .cse7 .cse3 .cse6) (or (not (= |old(~methaneLevelCritical~0)| 1)) .cse1 (= ~methaneLevelCritical~0 1) .cse4 (not (= ~waterLevel~0 1)))))) [2018-11-23 08:02:38,375 INFO L448 ceAbstractionStarter]: For program point L792-1(lines 788 799) no Hoare annotation was computed. [2018-11-23 08:02:38,375 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 788 799) no Hoare annotation was computed. [2018-11-23 08:02:38,376 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 800 808) the Hoare annotation is: true [2018-11-23 08:02:38,376 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 800 808) no Hoare annotation was computed. [2018-11-23 08:02:38,376 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 800 808) no Hoare annotation was computed. [2018-11-23 08:02:38,376 INFO L444 ceAbstractionStarter]: At program point L534(line 534) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 1)))) (let ((.cse1 (= 1 ~waterLevel~0)) (.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse5 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse7 (or (not (= 1 |old(~pumpRunning~0)|)) .cse2)) (.cse8 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse2 .cse1 .cse3 .cse4) (or .cse5 .cse0 .cse6 .cse2) (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) .cse3 .cse7 .cse4) (or (and .cse8 (<= ~waterLevel~0 1) .cse5) .cse7 .cse6) (or .cse0 .cse8 .cse6 .cse2) (or .cse0 (= ~waterLevel~0 2) .cse2 .cse4 (not (= |old(~waterLevel~0)| 2)))))) [2018-11-23 08:02:38,376 INFO L444 ceAbstractionStarter]: At program point L532(lines 532 538) the Hoare annotation is: (let ((.cse2 (not (= ~systemActive~0 1))) (.cse7 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse1 (and (= 1 ~waterLevel~0) .cse7)) (.cse4 (= ~pumpRunning~0 1)) (.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse6 (<= ~waterLevel~0 1)) (.cse9 (or (not (= 1 |old(~pumpRunning~0)|)) .cse2)) (.cse5 (< 2 |old(~waterLevel~0)|)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or .cse0 (and (<= ~waterLevel~0 2) .cse4) .cse5 (and .cse6 .cse7) .cse2) (or .cse0 .cse2 .cse1 .cse3 .cse8) (or .cse0 (and .cse4 (or (= ~waterLevel~0 2) (= ~waterLevel~0 1))) .cse2 .cse8 (not (= |old(~waterLevel~0)| 2))) (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) .cse3 .cse9 .cse8) (or (and .cse10 (= 0 ~pumpRunning~0) .cse6) (and .cse10 .cse6 .cse7) .cse9 .cse5) (or (< 1 |old(~waterLevel~0)|) .cse0 .cse10 .cse2)))) [2018-11-23 08:02:38,376 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 521 544) the Hoare annotation is: (let ((.cse5 (not (= ~systemActive~0 1)))) (let ((.cse4 (= 1 ~waterLevel~0)) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse8 (= ~waterLevel~0 2)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse9 (not (= |old(~waterLevel~0)| 2))) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (or (not (= 1 |old(~pumpRunning~0)|)) .cse5)) (.cse2 (and (<= ~waterLevel~0 2) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< 2 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2) (or (not (= ~methaneLevelCritical~0 1)) .cse3 .cse4 .cse5 .cse6) (or .cse3 .cse5 .cse4 .cse6 .cse7) (or (or (= ~waterLevel~0 1) .cse8) (and .cse6 .cse9) .cse0 .cse7) (or .cse3 .cse10 .cse1 .cse5) (or .cse3 .cse8 .cse5 .cse7 .cse9) (or .cse10 (< 1 |old(~waterLevel~0)|) .cse0) (or .cse2 .cse3 .cse1 .cse5)))) [2018-11-23 08:02:38,376 INFO L444 ceAbstractionStarter]: At program point L527(line 527) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 1)))) (let ((.cse0 (< 2 |old(~waterLevel~0)|)) (.cse2 (or (not (= 1 |old(~pumpRunning~0)|)) .cse1))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= |old(~pumpRunning~0)| ~pumpRunning~0)) .cse2 .cse0) (or (and (not (= |old(~waterLevel~0)| 1)) (not (= |old(~waterLevel~0)| 2))) .cse2 (not (= ~methaneLevelCritical~0 0)) (or (= ~waterLevel~0 2) (= ~waterLevel~0 1)))))) [2018-11-23 08:02:38,376 INFO L448 ceAbstractionStarter]: For program point L525(lines 524 543) no Hoare annotation was computed. [2018-11-23 08:02:38,377 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 521 544) no Hoare annotation was computed. [2018-11-23 08:02:38,377 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 521 544) no Hoare annotation was computed. [2018-11-23 08:02:38,377 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2018-11-23 08:02:38,377 INFO L448 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-11-23 08:02:38,377 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2018-11-23 08:02:38,377 INFO L448 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2018-11-23 08:02:38,377 INFO L451 ceAbstractionStarter]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2018-11-23 08:02:38,377 INFO L448 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-11-23 08:02:38,377 INFO L451 ceAbstractionStarter]: At program point L52-2(lines 52 66) the Hoare annotation is: true [2018-11-23 08:02:38,377 INFO L451 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: true [2018-11-23 08:02:38,377 INFO L448 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2018-11-23 08:02:38,377 INFO L451 ceAbstractionStarter]: At program point L67(lines 42 71) the Hoare annotation is: true [2018-11-23 08:02:38,378 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 865 897) no Hoare annotation was computed. [2018-11-23 08:02:38,378 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 865 897) the Hoare annotation is: true [2018-11-23 08:02:38,378 INFO L444 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< 1 ~waterLevel~0) (not (= 0 ~pumpRunning~0)) .cse0) (or (< 2 ~waterLevel~0) (not (= 1 ~pumpRunning~0)) .cse0))) [2018-11-23 08:02:38,378 INFO L448 ceAbstractionStarter]: For program point L884(lines 884 890) no Hoare annotation was computed. [2018-11-23 08:02:38,378 INFO L444 ceAbstractionStarter]: At program point L882(line 882) the Hoare annotation is: (let ((.cse0 (< 1 ~waterLevel~0)) (.cse3 (< 2 ~waterLevel~0)) (.cse2 (not (= 1 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 0 ~pumpRunning~0)) .cse1) (or .cse0 .cse2 .cse1) (or (= ~methaneLevelCritical~0 0) .cse3 .cse2 .cse1) (or .cse3 .cse2 (= __utac_acc__Specification3_spec__1_~tmp~8 ~methaneLevelCritical~0) .cse1))) [2018-11-23 08:02:38,378 INFO L448 ceAbstractionStarter]: For program point L882-1(line 882) no Hoare annotation was computed. [2018-11-23 08:02:38,378 INFO L448 ceAbstractionStarter]: For program point L880(lines 880 893) no Hoare annotation was computed. [2018-11-23 08:02:38,378 INFO L448 ceAbstractionStarter]: For program point L880-1(lines 865 897) no Hoare annotation was computed. [2018-11-23 08:02:38,378 INFO L444 ceAbstractionStarter]: At program point L878(line 878) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse4 (< 2 ~waterLevel~0)) (.cse5 (not (= 1 ~pumpRunning~0))) (.cse0 (< 1 ~waterLevel~0)) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse6 (= __utac_acc__Specification3_spec__1_~tmp~8 ~methaneLevelCritical~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse5 .cse3) (or .cse4 .cse5 .cse6 .cse3) (or .cse0 .cse1 .cse6 .cse3))) [2018-11-23 08:02:38,378 INFO L448 ceAbstractionStarter]: For program point L878-1(line 878) no Hoare annotation was computed. [2018-11-23 08:02:38,378 INFO L448 ceAbstractionStarter]: For program point L874(lines 874 894) no Hoare annotation was computed. [2018-11-23 08:02:38,378 INFO L451 ceAbstractionStarter]: At program point L872(line 872) the Hoare annotation is: true [2018-11-23 08:02:38,379 INFO L448 ceAbstractionStarter]: For program point L872-1(line 872) no Hoare annotation was computed. [2018-11-23 08:02:38,379 INFO L448 ceAbstractionStarter]: For program point L768-1(lines 764 775) no Hoare annotation was computed. [2018-11-23 08:02:38,379 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 764 775) the Hoare annotation is: (let ((.cse0 (not (= 1 ~pumpRunning~0))) (.cse1 (or (= ~pumpRunning~0 0) (not (= ~systemActive~0 1))))) (and (or (and (not (= |old(~waterLevel~0)| 1)) (not (= |old(~waterLevel~0)| 2))) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1 (or (= ~waterLevel~0 2) (= ~waterLevel~0 1))) (or (< 1 |old(~waterLevel~0)|) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse0 .cse1) (or (< 2 |old(~waterLevel~0)|) .cse0 (<= ~waterLevel~0 2) .cse1))) [2018-11-23 08:02:38,379 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 764 775) no Hoare annotation was computed. [2018-11-23 08:02:38,379 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2018-11-23 08:02:38,379 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2018-11-23 08:02:38,379 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 08:02:38,379 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-23 08:02:38,379 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 08:02:38,379 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 08:02:38,379 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 553 577) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) (< 2 ~waterLevel~0) .cse1) (or (< 1 ~waterLevel~0) .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1))) [2018-11-23 08:02:38,379 INFO L444 ceAbstractionStarter]: At program point L572(line 572) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (not (= 0 |old(~pumpRunning~0)|)) (< 2 ~waterLevel~0) .cse0) (or (< 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 1 |old(~pumpRunning~0)|)) .cse0))) [2018-11-23 08:02:38,380 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 553 577) no Hoare annotation was computed. [2018-11-23 08:02:38,380 INFO L448 ceAbstractionStarter]: For program point L572-1(lines 553 577) no Hoare annotation was computed. [2018-11-23 08:02:38,380 INFO L444 ceAbstractionStarter]: At program point L567(line 567) the Hoare annotation is: (let ((.cse1 (= processEnvironment__wrappee__highWaterSensor_~tmp~4 0)) (.cse3 (not (= ~waterLevel~0 1))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or (< 1 ~waterLevel~0) (not (= 1 |old(~pumpRunning~0)|)) .cse2) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (< 2 ~waterLevel~0) .cse2 (and (<= ~waterLevel~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))))) [2018-11-23 08:02:38,380 INFO L444 ceAbstractionStarter]: At program point L563(line 563) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= ~waterLevel~0 1)))) (and (or (< 1 ~waterLevel~0) (not (= 1 |old(~pumpRunning~0)|)) .cse0) (or .cse1 .cse0 (= processEnvironment__wrappee__highWaterSensor_~tmp~4 1) (not (= ~waterLevel~0 2))) (or .cse1 .cse0 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 (< 2 ~waterLevel~0) .cse0) (or (not (= ~methaneLevelCritical~0 1)) .cse1 .cse0 .cse2))) [2018-11-23 08:02:38,380 INFO L448 ceAbstractionStarter]: For program point L561(lines 561 569) no Hoare annotation was computed. [2018-11-23 08:02:38,380 INFO L444 ceAbstractionStarter]: At program point L559(line 559) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< 1 ~waterLevel~0) (not (= 1 |old(~pumpRunning~0)|)) .cse0) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (< 2 ~waterLevel~0) .cse0))) [2018-11-23 08:02:38,380 INFO L448 ceAbstractionStarter]: For program point L559-1(line 559) no Hoare annotation was computed. [2018-11-23 08:02:38,380 INFO L448 ceAbstractionStarter]: For program point L557(lines 557 574) no Hoare annotation was computed. [2018-11-23 08:02:38,380 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 776 787) no Hoare annotation was computed. [2018-11-23 08:02:38,380 INFO L448 ceAbstractionStarter]: For program point L780-1(lines 776 787) no Hoare annotation was computed. [2018-11-23 08:02:38,380 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 776 787) the Hoare annotation is: (let ((.cse6 (not (= ~systemActive~0 1)))) (let ((.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (< 1 |old(~waterLevel~0)|)) (.cse5 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (or (not (= 1 ~pumpRunning~0)) .cse6))) (and (or (or (= ~waterLevel~0 1) (= ~waterLevel~0 2)) (and .cse0 (not (= |old(~waterLevel~0)| 2))) .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse6) (or .cse3 .cse4 .cse1) (or (and (or (not (= ~methaneLevelCritical~0 1)) .cse5 .cse6 .cse0) (or .cse5 .cse6 .cse0 .cse2)) (= 1 ~waterLevel~0)) (or .cse1 (< 2 |old(~waterLevel~0)|) (<= ~waterLevel~0 2))))) [2018-11-23 08:02:38,380 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 856 863) no Hoare annotation was computed. [2018-11-23 08:02:38,380 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 860) no Hoare annotation was computed. [2018-11-23 08:02:38,380 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 856 863) the Hoare annotation is: true [2018-11-23 08:02:38,381 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 856 863) no Hoare annotation was computed. [2018-11-23 08:02:38,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:02:38 BoogieIcfgContainer [2018-11-23 08:02:38,390 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 08:02:38,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 08:02:38,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 08:02:38,390 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 08:02:38,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:02:23" (3/4) ... [2018-11-23 08:02:38,394 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 08:02:38,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 08:02:38,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 08:02:38,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 08:02:38,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 08:02:38,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 08:02:38,398 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification3_spec__1 [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 08:02:38,399 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 08:02:38,400 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 08:02:38,400 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 08:02:38,400 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 08:02:38,406 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2018-11-23 08:02:38,406 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 08:02:38,406 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 08:02:38,407 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 08:02:38,407 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 08:02:38,407 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 08:02:38,407 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 08:02:38,424 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((waterLevel <= 2 && pumpRunning == 1) && splverifierCounter == 0) || !(systemActive == 1)) || !(0 == \old(pumpRunning))) || ((0 == pumpRunning && waterLevel <= 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 08:02:38,424 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 08:02:38,455 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7efcff48-91bb-4693-b814-a810f48fd59a/bin-2019/utaipan/witness.graphml [2018-11-23 08:02:38,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 08:02:38,456 INFO L168 Benchmark]: Toolchain (without parser) took 15944.53 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 661.1 MB). Free memory was 957.1 MB in the beginning and 1.3 GB in the end (delta: -383.0 MB). Peak memory consumption was 278.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:02:38,456 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:02:38,457 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 957.1 MB in the beginning and 1.2 GB in the end (delta: -203.1 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:02:38,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:02:38,457 INFO L168 Benchmark]: Boogie Preprocessor took 28.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-23 08:02:38,457 INFO L168 Benchmark]: RCFGBuilder took 428.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:02:38,457 INFO L168 Benchmark]: TraceAbstraction took 15011.77 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 489.2 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -241.5 MB). Peak memory consumption was 749.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:02:38,458 INFO L168 Benchmark]: Witness Printer took 65.33 ms. Allocated memory is still 1.7 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 166.2 kB). Peak memory consumption was 166.2 kB. Max. memory is 11.5 GB. [2018-11-23 08:02:38,459 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 380.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.0 MB). Free memory was 957.1 MB in the beginning and 1.2 GB in the end (delta: -203.1 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 428.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 58.1 MB). Peak memory consumption was 58.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15011.77 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 489.2 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -241.5 MB). Peak memory consumption was 749.1 MB. Max. memory is 11.5 GB. * Witness Printer took 65.33 ms. Allocated memory is still 1.7 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 166.2 kB). Peak memory consumption was 166.2 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 860]: 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: 706]: Loop Invariant Derived loop invariant: ((((((waterLevel <= 2 && pumpRunning == 1) && splverifierCounter == 0) || !(systemActive == 1)) || !(0 == \old(pumpRunning))) || ((0 == pumpRunning && waterLevel <= 1) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 142 locations, 1 error locations. SAFE Result, 14.9s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 7.5s AutomataDifference, 0.0s DeadEndRemovalTime, 3.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 2081 SDtfs, 1962 SDslu, 8363 SDs, 0 SdLazy, 4264 SolverSat, 971 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 837 GetRequests, 656 SyntacticMatches, 14 SemanticMatches, 167 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=613occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9979204246016106 AbsIntWeakeningRatio, 0.9276807980049875 AbsIntAvgWeakeningVarsNumRemoved, 38.907730673316706 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 144 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 59 LocationsWithAnnotation, 2119 PreInvPairs, 2443 NumberOfFragments, 1856 HoareAnnotationTreeSize, 2119 FomulaSimplifications, 6282 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 59 FomulaSimplificationsInter, 16125 FormulaSimplificationTreeSizeReductionInter, 2.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1345 NumberOfCodeBlocks, 1345 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1466 ConstructedInterpolants, 0 QuantifiedInterpolants, 250437 SizeOfPredicates, 7 NumberOfNonLiveVariables, 818 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 158/180 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...