./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/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 8c7c11659b56a65fd9b011a28c96b3117f33c316 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:38:25,880 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:38:25,881 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:38:25,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:38:25,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:38:25,889 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:38:25,889 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:38:25,890 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:38:25,891 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:38:25,892 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:38:25,893 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:38:25,893 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:38:25,893 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:38:25,894 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:38:25,895 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:38:25,895 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:38:25,896 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:38:25,897 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:38:25,898 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:38:25,899 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:38:25,900 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:38:25,901 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:38:25,902 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:38:25,902 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:38:25,902 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:38:25,903 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:38:25,904 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:38:25,904 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:38:25,905 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:38:25,906 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:38:25,906 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:38:25,906 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:38:25,906 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:38:25,907 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:38:25,907 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:38:25,908 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:38:25,908 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:38:25,916 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:38:25,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:38:25,917 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:38:25,917 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:38:25,917 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:38:25,917 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:38:25,918 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:38:25,918 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:38:25,918 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:38:25,918 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:38:25,918 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:38:25,918 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:38:25,918 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:38:25,919 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:38:25,919 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:38:25,919 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:38:25,919 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:38:25,919 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:38:25,919 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:38:25,920 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:38:25,920 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:38:25,920 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:38:25,920 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:38:25,920 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:38:25,920 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:38:25,920 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:38:25,921 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:38:25,921 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:38:25,921 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:38:25,921 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:38:25,921 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:38:25,921 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:38:25,921 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:38:25,921 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:38:25,922 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:38:25,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:38:25,922 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:38:25,922 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_cb30d4f4-0d97-4461-81e7-9410117059c0/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 -> 8c7c11659b56a65fd9b011a28c96b3117f33c316 [2018-11-18 10:38:25,945 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:38:25,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:38:25,957 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:38:25,957 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:38:25,958 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:38:25,958 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-11-18 10:38:25,994 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/data/fca8a51e6/c7885f97cf9e4079a03b8812480e87b1/FLAG25e648374 [2018-11-18 10:38:26,435 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:38:26,436 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/sv-benchmarks/c/product-lines/minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-11-18 10:38:26,445 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/data/fca8a51e6/c7885f97cf9e4079a03b8812480e87b1/FLAG25e648374 [2018-11-18 10:38:26,455 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/data/fca8a51e6/c7885f97cf9e4079a03b8812480e87b1 [2018-11-18 10:38:26,457 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:38:26,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:38:26,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:38:26,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:38:26,462 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:38:26,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,464 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae989df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26, skipping insertion in model container [2018-11-18 10:38:26,464 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:38:26,501 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:38:26,700 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:38:26,709 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:38:26,833 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:38:26,852 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:38:26,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26 WrapperNode [2018-11-18 10:38:26,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:38:26,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:38:26,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:38:26,853 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:38:26,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:38:26,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:38:26,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:38:26,883 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:38:26,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (1/1) ... [2018-11-18 10:38:26,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:38:26,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:38:26,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:38:26,919 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:38:26,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/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 [2018-11-18 10:38:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 10:38:26,967 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 10:38:26,967 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:38:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:38:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:38:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 10:38:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 10:38:26,968 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 10:38:26,968 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 10:38:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 10:38:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 10:38:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 10:38:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 10:38:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 10:38:26,969 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 10:38:26,969 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 10:38:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 10:38:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 10:38:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 10:38:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 10:38:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 10:38:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 10:38:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 10:38:26,970 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 10:38:26,970 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 10:38:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 10:38:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 10:38:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 10:38:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 10:38:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 10:38:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 10:38:26,971 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 10:38:26,971 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 10:38:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 10:38:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 10:38:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 10:38:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 10:38:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 10:38:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 10:38:26,972 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 10:38:26,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 10:38:26,973 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 10:38:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 10:38:26,973 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-11-18 10:38:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-11-18 10:38:26,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:38:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:38:26,973 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 10:38:26,973 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 10:38:26,974 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 10:38:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 10:38:26,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:38:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:38:26,974 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-18 10:38:26,974 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-18 10:38:27,439 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:38:27,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:38:27 BoogieIcfgContainer [2018-11-18 10:38:27,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:38:27,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:38:27,441 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:38:27,444 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:38:27,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:38:26" (1/3) ... [2018-11-18 10:38:27,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cebd383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:38:27, skipping insertion in model container [2018-11-18 10:38:27,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:38:26" (2/3) ... [2018-11-18 10:38:27,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cebd383 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:38:27, skipping insertion in model container [2018-11-18 10:38:27,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:38:27" (3/3) ... [2018-11-18 10:38:27,448 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product45_true-unreach-call_false-termination.cil.c [2018-11-18 10:38:27,457 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:38:27,463 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:38:27,476 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:38:27,502 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:38:27,503 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:38:27,503 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:38:27,503 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:38:27,503 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:38:27,503 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:38:27,503 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:38:27,503 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:38:27,519 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2018-11-18 10:38:27,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 10:38:27,525 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:27,526 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:27,528 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:27,532 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:27,533 INFO L82 PathProgramCache]: Analyzing trace with hash 198632225, now seen corresponding path program 1 times [2018-11-18 10:38:27,534 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:27,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:27,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:27,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:27,568 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:27,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:38:27,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:38:27,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:38:27,731 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:27,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:38:27,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:38:27,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:38:27,744 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2018-11-18 10:38:27,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:27,767 INFO L93 Difference]: Finished difference Result 264 states and 329 transitions. [2018-11-18 10:38:27,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:38:27,768 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 10:38:27,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:27,779 INFO L225 Difference]: With dead ends: 264 [2018-11-18 10:38:27,779 INFO L226 Difference]: Without dead ends: 132 [2018-11-18 10:38:27,782 INFO L604 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 [2018-11-18 10:38:27,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-11-18 10:38:27,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-11-18 10:38:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-11-18 10:38:27,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 156 transitions. [2018-11-18 10:38:27,815 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 156 transitions. Word has length 46 [2018-11-18 10:38:27,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:27,815 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 156 transitions. [2018-11-18 10:38:27,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:38:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 156 transitions. [2018-11-18 10:38:27,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 10:38:27,817 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:27,817 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:27,817 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:27,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:27,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1148885767, now seen corresponding path program 1 times [2018-11-18 10:38:27,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:27,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:27,818 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:27,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:27,819 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:38:27,901 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:38:27,901 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:38:27,901 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:27,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:38:27,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:38:27,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:38:27,903 INFO L87 Difference]: Start difference. First operand 132 states and 156 transitions. Second operand 3 states. [2018-11-18 10:38:27,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:27,922 INFO L93 Difference]: Finished difference Result 211 states and 249 transitions. [2018-11-18 10:38:27,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:38:27,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 10:38:27,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:27,925 INFO L225 Difference]: With dead ends: 211 [2018-11-18 10:38:27,925 INFO L226 Difference]: Without dead ends: 122 [2018-11-18 10:38:27,926 INFO L604 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 [2018-11-18 10:38:27,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-11-18 10:38:27,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-11-18 10:38:27,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-11-18 10:38:27,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2018-11-18 10:38:27,939 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 48 [2018-11-18 10:38:27,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:27,939 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2018-11-18 10:38:27,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:38:27,940 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2018-11-18 10:38:27,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 10:38:27,941 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:27,941 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:27,941 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:27,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:27,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1564938687, now seen corresponding path program 1 times [2018-11-18 10:38:27,942 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:27,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:27,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:27,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:27,944 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:28,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:38:28,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:38:28,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:38:28,094 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:28,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:38:28,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:38:28,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:38:28,095 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 7 states. [2018-11-18 10:38:28,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:28,326 INFO L93 Difference]: Finished difference Result 220 states and 263 transitions. [2018-11-18 10:38:28,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:38:28,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-11-18 10:38:28,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:28,328 INFO L225 Difference]: With dead ends: 220 [2018-11-18 10:38:28,328 INFO L226 Difference]: Without dead ends: 122 [2018-11-18 10:38:28,329 INFO L604 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 [2018-11-18 10:38:28,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-11-18 10:38:28,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-11-18 10:38:28,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-11-18 10:38:28,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2018-11-18 10:38:28,339 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 142 transitions. Word has length 52 [2018-11-18 10:38:28,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:28,340 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 142 transitions. [2018-11-18 10:38:28,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:38:28,340 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 142 transitions. [2018-11-18 10:38:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-11-18 10:38:28,342 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:28,342 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:28,342 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:28,343 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:28,343 INFO L82 PathProgramCache]: Analyzing trace with hash -484597792, now seen corresponding path program 1 times [2018-11-18 10:38:28,343 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:28,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:28,344 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:28,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:28,344 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:28,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:38:28,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:38:28,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 10:38:28,473 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:28,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:38:28,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:38:28,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:38:28,475 INFO L87 Difference]: Start difference. First operand 122 states and 142 transitions. Second operand 5 states. [2018-11-18 10:38:28,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:28,849 INFO L93 Difference]: Finished difference Result 323 states and 390 transitions. [2018-11-18 10:38:28,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 10:38:28,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2018-11-18 10:38:28,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:28,852 INFO L225 Difference]: With dead ends: 323 [2018-11-18 10:38:28,852 INFO L226 Difference]: Without dead ends: 225 [2018-11-18 10:38:28,853 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:38:28,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2018-11-18 10:38:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 206. [2018-11-18 10:38:28,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206 states. [2018-11-18 10:38:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 235 transitions. [2018-11-18 10:38:28,875 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 235 transitions. Word has length 65 [2018-11-18 10:38:28,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:28,875 INFO L480 AbstractCegarLoop]: Abstraction has 206 states and 235 transitions. [2018-11-18 10:38:28,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:38:28,875 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 235 transitions. [2018-11-18 10:38:28,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-11-18 10:38:28,877 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:28,877 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:28,877 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:28,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:28,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1952450224, now seen corresponding path program 1 times [2018-11-18 10:38:28,878 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:28,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:28,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:28,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:28,880 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:38:28,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:38:28,971 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:38:28,971 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:28,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:38:28,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:38:28,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:38:28,972 INFO L87 Difference]: Start difference. First operand 206 states and 235 transitions. Second operand 6 states. [2018-11-18 10:38:29,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:29,121 INFO L93 Difference]: Finished difference Result 555 states and 655 transitions. [2018-11-18 10:38:29,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:38:29,122 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2018-11-18 10:38:29,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:29,126 INFO L225 Difference]: With dead ends: 555 [2018-11-18 10:38:29,126 INFO L226 Difference]: Without dead ends: 373 [2018-11-18 10:38:29,127 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:38:29,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2018-11-18 10:38:29,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 367. [2018-11-18 10:38:29,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2018-11-18 10:38:29,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 420 transitions. [2018-11-18 10:38:29,153 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 420 transitions. Word has length 79 [2018-11-18 10:38:29,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:29,154 INFO L480 AbstractCegarLoop]: Abstraction has 367 states and 420 transitions. [2018-11-18 10:38:29,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:38:29,154 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 420 transitions. [2018-11-18 10:38:29,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-11-18 10:38:29,155 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:29,156 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:29,156 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:29,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:29,156 INFO L82 PathProgramCache]: Analyzing trace with hash 1044502636, now seen corresponding path program 1 times [2018-11-18 10:38:29,156 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:29,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:29,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:29,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:29,157 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:38:29,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:38:29,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:38:29,255 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:29,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:38:29,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:38:29,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:38:29,256 INFO L87 Difference]: Start difference. First operand 367 states and 420 transitions. Second operand 7 states. [2018-11-18 10:38:29,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:29,642 INFO L93 Difference]: Finished difference Result 402 states and 472 transitions. [2018-11-18 10:38:29,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 10:38:29,643 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2018-11-18 10:38:29,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:29,644 INFO L225 Difference]: With dead ends: 402 [2018-11-18 10:38:29,645 INFO L226 Difference]: Without dead ends: 399 [2018-11-18 10:38:29,645 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-18 10:38:29,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2018-11-18 10:38:29,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 367. [2018-11-18 10:38:29,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2018-11-18 10:38:29,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 419 transitions. [2018-11-18 10:38:29,664 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 419 transitions. Word has length 83 [2018-11-18 10:38:29,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:29,665 INFO L480 AbstractCegarLoop]: Abstraction has 367 states and 419 transitions. [2018-11-18 10:38:29,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:38:29,665 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 419 transitions. [2018-11-18 10:38:29,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-18 10:38:29,666 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:29,666 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:29,666 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:29,667 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:29,667 INFO L82 PathProgramCache]: Analyzing trace with hash 193478741, now seen corresponding path program 1 times [2018-11-18 10:38:29,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:29,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:29,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:29,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:29,669 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:29,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:38:29,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:38:29,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 10:38:29,733 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:29,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 10:38:29,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 10:38:29,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 10:38:29,734 INFO L87 Difference]: Start difference. First operand 367 states and 419 transitions. Second operand 6 states. [2018-11-18 10:38:29,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:29,765 INFO L93 Difference]: Finished difference Result 724 states and 846 transitions. [2018-11-18 10:38:29,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:38:29,766 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2018-11-18 10:38:29,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:29,768 INFO L225 Difference]: With dead ends: 724 [2018-11-18 10:38:29,768 INFO L226 Difference]: Without dead ends: 381 [2018-11-18 10:38:29,769 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:38:29,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2018-11-18 10:38:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 377. [2018-11-18 10:38:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 377 states. [2018-11-18 10:38:29,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 429 transitions. [2018-11-18 10:38:29,784 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 429 transitions. Word has length 99 [2018-11-18 10:38:29,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:29,784 INFO L480 AbstractCegarLoop]: Abstraction has 377 states and 429 transitions. [2018-11-18 10:38:29,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 10:38:29,784 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 429 transitions. [2018-11-18 10:38:29,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-18 10:38:29,785 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:29,785 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:29,786 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:29,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:29,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1086965079, now seen corresponding path program 1 times [2018-11-18 10:38:29,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:29,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:29,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:29,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:29,787 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:29,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:38:29,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:38:29,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 10:38:29,865 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:29,866 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 10:38:29,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 10:38:29,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:38:29,866 INFO L87 Difference]: Start difference. First operand 377 states and 429 transitions. Second operand 8 states. [2018-11-18 10:38:29,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:29,896 INFO L93 Difference]: Finished difference Result 744 states and 868 transitions. [2018-11-18 10:38:29,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:38:29,896 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2018-11-18 10:38:29,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:29,898 INFO L225 Difference]: With dead ends: 744 [2018-11-18 10:38:29,898 INFO L226 Difference]: Without dead ends: 391 [2018-11-18 10:38:29,899 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 10:38:29,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2018-11-18 10:38:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 385. [2018-11-18 10:38:29,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 385 states. [2018-11-18 10:38:29,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 437 transitions. [2018-11-18 10:38:29,912 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 437 transitions. Word has length 99 [2018-11-18 10:38:29,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:29,913 INFO L480 AbstractCegarLoop]: Abstraction has 385 states and 437 transitions. [2018-11-18 10:38:29,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 10:38:29,913 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 437 transitions. [2018-11-18 10:38:29,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-11-18 10:38:29,914 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:29,914 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:29,914 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:29,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:29,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1079205720, now seen corresponding path program 1 times [2018-11-18 10:38:29,915 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:29,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:29,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:29,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:29,916 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:29,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:29,982 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 10:38:29,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:38:29,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:38:29,982 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:29,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 10:38:29,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 10:38:29,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:38:29,983 INFO L87 Difference]: Start difference. First operand 385 states and 437 transitions. Second operand 4 states. [2018-11-18 10:38:30,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:30,125 INFO L93 Difference]: Finished difference Result 1137 states and 1360 transitions. [2018-11-18 10:38:30,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 10:38:30,126 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2018-11-18 10:38:30,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:30,128 INFO L225 Difference]: With dead ends: 1137 [2018-11-18 10:38:30,128 INFO L226 Difference]: Without dead ends: 776 [2018-11-18 10:38:30,129 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 10:38:30,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 776 states. [2018-11-18 10:38:30,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 776 to 761. [2018-11-18 10:38:30,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2018-11-18 10:38:30,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 891 transitions. [2018-11-18 10:38:30,156 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 891 transitions. Word has length 99 [2018-11-18 10:38:30,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:30,156 INFO L480 AbstractCegarLoop]: Abstraction has 761 states and 891 transitions. [2018-11-18 10:38:30,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 10:38:30,156 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 891 transitions. [2018-11-18 10:38:30,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-11-18 10:38:30,158 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:30,158 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:30,158 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:30,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:30,159 INFO L82 PathProgramCache]: Analyzing trace with hash -126524302, now seen corresponding path program 1 times [2018-11-18 10:38:30,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:30,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:30,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:30,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:30,160 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:30,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 10:38:30,258 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:38:30,258 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:38:30,259 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 104 with the following transitions: [2018-11-18 10:38:30,260 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [36], [37], [38], [39], [42], [44], [45], [48], [63], [66], [67], [71], [72], [74], [78], [84], [88], [92], [95], [100], [103], [108], [111], [126], [127], [128], [129], [130], [132], [137], [140], [141], [143], [148], [150], [151], [156], [158], [164], [168], [202], [203], [211], [217], [221], [222], [225], [227], [230], [232], [235], [244], [245], [246], [247], [248], [249], [250], [251], [252], [254], [255], [256], [257], [262], [264], [265], [272], [273], [274], [275], [276], [277], [278], [282], [283], [284], [285], [286], [287], [290], [291], [292], [298], [299], [300], [302], [303], [304], [305], [306] [2018-11-18 10:38:30,285 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:38:30,286 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:38:30,669 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:38:30,670 INFO L272 AbstractInterpreter]: Visited 101 different actions 103 times. Never merged. Never widened. Performed 3156 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3156 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-11-18 10:38:30,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:30,679 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:38:30,680 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:38:30,680 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/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 [2018-11-18 10:38:30,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:30,696 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:38:30,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:30,776 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:38:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 10:38:30,937 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:38:31,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 10:38:31,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:38:31,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-18 10:38:31,468 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:31,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 10:38:31,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 10:38:31,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 10:38:31,469 INFO L87 Difference]: Start difference. First operand 761 states and 891 transitions. Second operand 8 states. [2018-11-18 10:38:31,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:31,829 INFO L93 Difference]: Finished difference Result 1470 states and 1732 transitions. [2018-11-18 10:38:31,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:38:31,830 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 103 [2018-11-18 10:38:31,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:31,834 INFO L225 Difference]: With dead ends: 1470 [2018-11-18 10:38:31,834 INFO L226 Difference]: Without dead ends: 733 [2018-11-18 10:38:31,836 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 189 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 10:38:31,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2018-11-18 10:38:31,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 733. [2018-11-18 10:38:31,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2018-11-18 10:38:31,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 845 transitions. [2018-11-18 10:38:31,870 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 845 transitions. Word has length 103 [2018-11-18 10:38:31,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:31,871 INFO L480 AbstractCegarLoop]: Abstraction has 733 states and 845 transitions. [2018-11-18 10:38:31,871 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 10:38:31,871 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 845 transitions. [2018-11-18 10:38:31,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-18 10:38:31,873 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:31,874 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:31,874 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:31,874 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:31,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1076628311, now seen corresponding path program 1 times [2018-11-18 10:38:31,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:31,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:31,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:31,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:31,875 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:31,967 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 10:38:31,967 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:38:31,967 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:38:31,967 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-18 10:38:31,968 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [42], [44], [45], [48], [51], [53], [59], [63], [66], [67], [71], [72], [73], [74], [78], [84], [88], [92], [95], [98], [100], [103], [106], [108], [111], [126], [127], [128], [129], [130], [132], [137], [140], [141], [143], [148], [150], [151], [156], [158], [161], [164], [168], [174], [202], [203], [208], [210], [211], [217], [221], [222], [225], [227], [230], [232], [235], [241], [243], [244], [245], [246], [247], [248], [249], [250], [251], [252], [254], [255], [256], [257], [260], [261], [262], [264], [265], [266], [267], [270], [271], [272], [273], [274], [275], [276], [277], [278], [279], [282], [283], [284], [285], [286], [287], [288], [289], [290], [291], [292], [293], [298], [299], [300], [302], [303], [304], [305], [306] [2018-11-18 10:38:31,971 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:38:31,971 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:38:33,869 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:38:33,869 INFO L272 AbstractInterpreter]: Visited 124 different actions 936 times. Merged at 18 different actions 74 times. Never widened. Performed 36009 root evaluator evaluations with a maximum evaluation depth of 3. Performed 36009 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 19 fixpoints after 6 different actions. Largest state had 132 variables. [2018-11-18 10:38:33,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:33,871 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:38:33,871 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:38:33,871 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:38:33,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:33,877 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:38:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:33,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:38:34,004 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-18 10:38:34,004 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:38:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 10:38:34,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:38:34,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-11-18 10:38:34,225 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:34,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 10:38:34,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:38:34,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:38:34,226 INFO L87 Difference]: Start difference. First operand 733 states and 845 transitions. Second operand 5 states. [2018-11-18 10:38:34,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:34,701 INFO L93 Difference]: Finished difference Result 1591 states and 1950 transitions. [2018-11-18 10:38:34,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:38:34,701 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2018-11-18 10:38:34,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:34,704 INFO L225 Difference]: With dead ends: 1591 [2018-11-18 10:38:34,704 INFO L226 Difference]: Without dead ends: 1004 [2018-11-18 10:38:34,705 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 308 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-11-18 10:38:34,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1004 states. [2018-11-18 10:38:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1004 to 908. [2018-11-18 10:38:34,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 908 states. [2018-11-18 10:38:34,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1064 transitions. [2018-11-18 10:38:34,737 INFO L78 Accepts]: Start accepts. Automaton has 908 states and 1064 transitions. Word has length 155 [2018-11-18 10:38:34,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:34,738 INFO L480 AbstractCegarLoop]: Abstraction has 908 states and 1064 transitions. [2018-11-18 10:38:34,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 10:38:34,738 INFO L276 IsEmpty]: Start isEmpty. Operand 908 states and 1064 transitions. [2018-11-18 10:38:34,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-11-18 10:38:34,740 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:38:34,740 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:38:34,740 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:38:34,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:34,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1168951143, now seen corresponding path program 1 times [2018-11-18 10:38:34,741 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:38:34,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:34,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:34,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:38:34,742 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:38:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:34,846 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 10:38:34,846 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:38:34,846 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 10:38:34,846 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-11-18 10:38:34,847 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [26], [33], [36], [37], [38], [39], [42], [44], [45], [48], [51], [53], [59], [63], [66], [67], [71], [72], [73], [74], [78], [84], [88], [92], [95], [98], [100], [103], [106], [108], [111], [126], [127], [128], [129], [130], [132], [137], [140], [141], [143], [148], [150], [151], [156], [158], [161], [164], [168], [174], [202], [203], [206], [210], [211], [217], [221], [222], [225], [227], [230], [232], [235], [241], [243], [244], [245], [246], [247], [248], [249], [250], [251], [252], [254], [255], [256], [257], [260], [261], [262], [264], [265], [266], [267], [270], [271], [272], [273], [274], [275], [276], [277], [278], [279], [282], [283], [284], [285], [286], [287], [288], [289], [290], [291], [292], [293], [298], [299], [300], [302], [303], [304], [305], [306] [2018-11-18 10:38:34,849 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 10:38:34,850 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 10:38:35,746 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 10:38:35,746 INFO L272 AbstractInterpreter]: Visited 124 different actions 775 times. Merged at 18 different actions 58 times. Never widened. Performed 24896 root evaluator evaluations with a maximum evaluation depth of 3. Performed 24896 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 15 fixpoints after 5 different actions. Largest state had 132 variables. [2018-11-18 10:38:35,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:38:35,754 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 10:38:35,754 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 10:38:35,754 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 10:38:35,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:38:35,771 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 10:38:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:38:35,838 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:38:35,937 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 10:38:35,937 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 10:38:36,205 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-18 10:38:36,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 10:38:36,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-18 10:38:36,222 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:38:36,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 10:38:36,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 10:38:36,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 10:38:36,223 INFO L87 Difference]: Start difference. First operand 908 states and 1064 transitions. Second operand 8 states. [2018-11-18 10:38:36,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:38:36,382 INFO L93 Difference]: Finished difference Result 1579 states and 1875 transitions. [2018-11-18 10:38:36,383 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:38:36,383 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 155 [2018-11-18 10:38:36,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:38:36,383 INFO L225 Difference]: With dead ends: 1579 [2018-11-18 10:38:36,384 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:38:36,386 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 295 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 10:38:36,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:38:36,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:38:36,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:38:36,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:38:36,387 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2018-11-18 10:38:36,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:38:36,387 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:38:36,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 10:38:36,388 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:38:36,388 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:38:36,391 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:38:36,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:38:36,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:38:36,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:38:36,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:38:36,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:38:36,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:38:36,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 10:38:37,007 WARN L180 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 31 [2018-11-18 10:38:37,711 WARN L180 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 36 [2018-11-18 10:38:38,443 WARN L180 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 33 [2018-11-18 10:38:38,446 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 297 303) the Hoare annotation is: true [2018-11-18 10:38:38,446 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 297 303) no Hoare annotation was computed. [2018-11-18 10:38:38,446 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 304 312) no Hoare annotation was computed. [2018-11-18 10:38:38,446 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 304 312) the Hoare annotation is: true [2018-11-18 10:38:38,446 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 304 312) no Hoare annotation was computed. [2018-11-18 10:38:38,446 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 255 277) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:38:38,447 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 255 277) no Hoare annotation was computed. [2018-11-18 10:38:38,447 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 255 277) no Hoare annotation was computed. [2018-11-18 10:38:38,447 INFO L421 ceAbstractionStarter]: At program point L267(line 267) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 10:38:38,447 INFO L421 ceAbstractionStarter]: At program point L267-1(line 267) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= |old(~pumpRunning~0)| ~pumpRunning~0))) [2018-11-18 10:38:38,447 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 272) no Hoare annotation was computed. [2018-11-18 10:38:38,447 INFO L425 ceAbstractionStarter]: For program point L265-1(lines 265 272) no Hoare annotation was computed. [2018-11-18 10:38:38,447 INFO L425 ceAbstractionStarter]: For program point L263(line 263) no Hoare annotation was computed. [2018-11-18 10:38:38,447 INFO L421 ceAbstractionStarter]: At program point L262(line 262) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:38:38,447 INFO L421 ceAbstractionStarter]: At program point L261(line 261) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:38:38,447 INFO L421 ceAbstractionStarter]: At program point L261-1(line 261) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:38:38,447 INFO L421 ceAbstractionStarter]: At program point L801(line 801) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-11-18 10:38:38,447 INFO L425 ceAbstractionStarter]: For program point L801-1(lines 782 806) no Hoare annotation was computed. [2018-11-18 10:38:38,447 INFO L421 ceAbstractionStarter]: At program point L796(line 796) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (and (= 0 processEnvironment__wrappee__methaneQuery_~tmp~6) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) (not .cse2) .cse0 .cse3) (or .cse3 .cse0 .cse1))) [2018-11-18 10:38:38,447 INFO L421 ceAbstractionStarter]: At program point L792(line 792) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or (and .cse0 .cse1) (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse2) (or (and .cse0 (= 0 ~pumpRunning~0) .cse1) .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 10:38:38,447 INFO L425 ceAbstractionStarter]: For program point L790(lines 790 798) no Hoare annotation was computed. [2018-11-18 10:38:38,447 INFO L421 ceAbstractionStarter]: At program point L788(line 788) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) (not .cse2) .cse3 .cse0))) [2018-11-18 10:38:38,447 INFO L425 ceAbstractionStarter]: For program point L788-1(line 788) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point L786(lines 786 803) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 782 806) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 782 806) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 877 885) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 877 885) the Hoare annotation is: true [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 877 885) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 290 296) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 290 296) the Hoare annotation is: true [2018-11-18 10:38:38,448 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 242 251) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 242 251) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 242 251) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 866 876) the Hoare annotation is: true [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 866 876) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L428 ceAbstractionStarter]: At program point L871(line 871) the Hoare annotation is: true [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 866 876) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point L871-1(line 871) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 858 865) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 858 865) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 858 865) no Hoare annotation was computed. [2018-11-18 10:38:38,448 INFO L421 ceAbstractionStarter]: At program point L827(line 827) the Hoare annotation is: (let ((.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse1 .cse3 .cse2) (or .cse4 .cse1 .cse3) (or .cse0 .cse4 .cse1))) [2018-11-18 10:38:38,448 INFO L425 ceAbstractionStarter]: For program point L827-1(lines 808 832) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 808 832) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L421 ceAbstractionStarter]: At program point L822(line 822) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse0))) [2018-11-18 10:38:38,449 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 808 832) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1))) [2018-11-18 10:38:38,449 INFO L421 ceAbstractionStarter]: At program point L818(line 818) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse1 (not (= ~systemActive~0 1))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse1 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~7) .cse0)))) [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point L816(lines 816 824) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L421 ceAbstractionStarter]: At program point L814(line 814) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse0 .cse1))) [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point L814-1(line 814) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point L812(lines 812 829) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 126 139) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 126 139) the Hoare annotation is: true [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point L130(lines 130 136) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 126 139) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 774 780) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 774 780) the Hoare annotation is: true [2018-11-18 10:38:38,449 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 680 743) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:38:38,449 INFO L421 ceAbstractionStarter]: At program point L702(line 702) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (and (= 0 ~pumpRunning~0) .cse0) (<= 1 ~methaneLevelCritical~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-11-18 10:38:38,449 INFO L421 ceAbstractionStarter]: At program point L733(lines 690 735) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point L700(lines 700 706) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point L700-1(lines 700 706) no Hoare annotation was computed. [2018-11-18 10:38:38,449 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 680 743) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point L692(lines 692 696) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point L690-1(lines 690 735) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L421 ceAbstractionStarter]: At program point L736(lines 689 737) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point L726(lines 726 730) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L421 ceAbstractionStarter]: At program point L726-2(lines 720 731) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0))) [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point L691(lines 690 735) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point L720(lines 720 731) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L421 ceAbstractionStarter]: At program point L712(line 712) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point L710(lines 710 716) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point L710-1(lines 710 716) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 680 743) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 833 840) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (< ~waterLevel~0 2) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 833 840) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 833 840) no Hoare annotation was computed. [2018-11-18 10:38:38,450 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:38:38,451 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-11-18 10:38:38,451 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:38:38,451 INFO L425 ceAbstractionStarter]: For program point L848(lines 848 854) no Hoare annotation was computed. [2018-11-18 10:38:38,451 INFO L421 ceAbstractionStarter]: At program point L846(line 846) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (< ~methaneLevelCritical~0 1) .cse0 .cse2 .cse3))) [2018-11-18 10:38:38,451 INFO L425 ceAbstractionStarter]: For program point L846-1(line 846) no Hoare annotation was computed. [2018-11-18 10:38:38,451 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 841 857) no Hoare annotation was computed. [2018-11-18 10:38:38,451 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 841 857) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (< ~waterLevel~0 2)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (< ~methaneLevelCritical~0 1) .cse0 .cse2 .cse3))) [2018-11-18 10:38:38,451 INFO L421 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (< ~waterLevel~0 2)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-11-18 10:38:38,451 INFO L425 ceAbstractionStarter]: For program point L852-1(lines 841 857) no Hoare annotation was computed. [2018-11-18 10:38:38,451 INFO L428 ceAbstractionStarter]: At program point L929(line 929) the Hoare annotation is: true [2018-11-18 10:38:38,451 INFO L425 ceAbstractionStarter]: For program point L931-2(lines 931 935) no Hoare annotation was computed. [2018-11-18 10:38:38,452 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 922 940) no Hoare annotation was computed. [2018-11-18 10:38:38,452 INFO L425 ceAbstractionStarter]: For program point L929-1(line 929) no Hoare annotation was computed. [2018-11-18 10:38:38,452 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 922 940) the Hoare annotation is: true [2018-11-18 10:38:38,452 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 922 940) no Hoare annotation was computed. [2018-11-18 10:38:38,452 INFO L425 ceAbstractionStarter]: For program point L931(lines 931 935) no Hoare annotation was computed. [2018-11-18 10:38:38,452 INFO L425 ceAbstractionStarter]: For program point L77-1(lines 73 84) no Hoare annotation was computed. [2018-11-18 10:38:38,452 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 73 84) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= |old(~methaneLevelCritical~0)| 0)) (= 0 ~methaneLevelCritical~0)) (or (< |old(~methaneLevelCritical~0)| 1) (not (= 0 ~pumpRunning~0)) (<= 1 ~methaneLevelCritical~0) .cse0))) [2018-11-18 10:38:38,452 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 73 84) no Hoare annotation was computed. [2018-11-18 10:38:38,452 INFO L421 ceAbstractionStarter]: At program point L763(line 763) the Hoare annotation is: (let ((.cse6 (= |old(~waterLevel~0)| 1)) (.cse8 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse5 (and .cse8 (<= 1 ~methaneLevelCritical~0) .cse0)) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse10 (not .cse6)) (.cse9 (= 1 ~waterLevel~0)) (.cse7 (not (= ~waterLevel~0 1))) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (and .cse4 .cse0) .cse5 .cse1) (or .cse3 .cse6 .cse7 .cse5 .cse1) (or .cse8 .cse9 .cse1 .cse10 .cse2) (or .cse3 .cse8 .cse1 .cse10 .cse9) (or .cse6 (and .cse7 .cse4) .cse8 .cse1 .cse2)))) [2018-11-18 10:38:38,452 INFO L421 ceAbstractionStarter]: At program point L761(lines 761 767) the Hoare annotation is: (let ((.cse8 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (= 0 ~pumpRunning~0)) (.cse11 (= ~systemActive~0 1)) (.cse6 (= |old(~waterLevel~0)| 1))) (let ((.cse4 (< ~methaneLevelCritical~0 1)) (.cse10 (not .cse6)) (.cse9 (= 1 ~waterLevel~0)) (.cse7 (and (not (= ~waterLevel~0 1)) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse2 (not .cse11)) (.cse1 (and .cse8 .cse5 .cse11)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2) (or .cse4 .cse6 .cse7 .cse2 .cse8) (or .cse8 .cse9 .cse2 .cse10 .cse3) (or .cse4 .cse8 .cse2 .cse10 .cse9) (or .cse6 .cse7 .cse2 .cse1 (and .cse8 .cse0) .cse3)))) [2018-11-18 10:38:38,453 INFO L421 ceAbstractionStarter]: At program point L756(line 756) the Hoare annotation is: (let ((.cse0 (and (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1))) [2018-11-18 10:38:38,453 INFO L425 ceAbstractionStarter]: For program point L754(lines 753 772) no Hoare annotation was computed. [2018-11-18 10:38:38,453 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 750 773) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (not .cse1)) (.cse6 (= 1 ~waterLevel~0)) (.cse2 (not (= ~waterLevel~0 1))) (.cse3 (not (= ~systemActive~0 1))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse4 (and (<= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse3) (or .cse5 .cse6 .cse3 .cse7 .cse8) (or .cse0 .cse5 .cse3 .cse7 .cse6) (or .cse1 .cse3 .cse2 .cse8) (or .cse3 .cse8 .cse4)))) [2018-11-18 10:38:38,453 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 750 773) no Hoare annotation was computed. [2018-11-18 10:38:38,453 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 750 773) no Hoare annotation was computed. [2018-11-18 10:38:38,453 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 179 208) no Hoare annotation was computed. [2018-11-18 10:38:38,453 INFO L425 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-11-18 10:38:38,453 INFO L425 ceAbstractionStarter]: For program point L193(lines 193 197) no Hoare annotation was computed. [2018-11-18 10:38:38,453 INFO L428 ceAbstractionStarter]: At program point L193-1(lines 193 197) the Hoare annotation is: true [2018-11-18 10:38:38,453 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 179 208) the Hoare annotation is: true [2018-11-18 10:38:38,453 INFO L425 ceAbstractionStarter]: For program point L189-1(lines 189 203) no Hoare annotation was computed. [2018-11-18 10:38:38,454 INFO L428 ceAbstractionStarter]: At program point L189-3(lines 189 203) the Hoare annotation is: true [2018-11-18 10:38:38,454 INFO L428 ceAbstractionStarter]: At program point L185(line 185) the Hoare annotation is: true [2018-11-18 10:38:38,454 INFO L425 ceAbstractionStarter]: For program point L185-1(line 185) no Hoare annotation was computed. [2018-11-18 10:38:38,454 INFO L428 ceAbstractionStarter]: At program point L204(lines 179 208) the Hoare annotation is: true [2018-11-18 10:38:38,454 INFO L425 ceAbstractionStarter]: For program point L200(line 200) no Hoare annotation was computed. [2018-11-18 10:38:38,454 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 85 93) the Hoare annotation is: true [2018-11-18 10:38:38,454 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 85 93) no Hoare annotation was computed. [2018-11-18 10:38:38,454 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 85 93) no Hoare annotation was computed. [2018-11-18 10:38:38,454 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 49 60) the Hoare annotation is: (let ((.cse0 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 (or .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2)) (or (< ~methaneLevelCritical~0 1) .cse0 (or .cse1 .cse2)))) [2018-11-18 10:38:38,454 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 49 60) no Hoare annotation was computed. [2018-11-18 10:38:38,454 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 49 60) no Hoare annotation was computed. [2018-11-18 10:38:38,454 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 234 240) no Hoare annotation was computed. [2018-11-18 10:38:38,454 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 234 240) the Hoare annotation is: true [2018-11-18 10:38:38,455 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:38:38,455 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1)) [2018-11-18 10:38:38,455 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:38:38,455 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:38:38,455 INFO L425 ceAbstractionStarter]: For program point L65-1(lines 61 72) no Hoare annotation was computed. [2018-11-18 10:38:38,455 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 61 72) no Hoare annotation was computed. [2018-11-18 10:38:38,455 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 61 72) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse1 (= 1 ~waterLevel~0)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse6 (<= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse2 .cse3 .cse1) (or (or .cse2 .cse4) .cse6) (or .cse5 (or .cse0 .cse2) .cse6))) [2018-11-18 10:38:38,455 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 141 148) no Hoare annotation was computed. [2018-11-18 10:38:38,455 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 141 148) the Hoare annotation is: true [2018-11-18 10:38:38,455 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 141 148) no Hoare annotation was computed. [2018-11-18 10:38:38,455 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2018-11-18 10:38:38,456 INFO L421 ceAbstractionStarter]: At program point L161(line 161) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-11-18 10:38:38,456 INFO L425 ceAbstractionStarter]: For program point L161-1(line 161) no Hoare annotation was computed. [2018-11-18 10:38:38,456 INFO L425 ceAbstractionStarter]: For program point L159(lines 159 172) no Hoare annotation was computed. [2018-11-18 10:38:38,456 INFO L425 ceAbstractionStarter]: For program point L159-1(lines 151 175) no Hoare annotation was computed. [2018-11-18 10:38:38,456 INFO L428 ceAbstractionStarter]: At program point L157(line 157) the Hoare annotation is: true [2018-11-18 10:38:38,456 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 151 175) the Hoare annotation is: true [2018-11-18 10:38:38,456 INFO L425 ceAbstractionStarter]: For program point L157-1(line 157) no Hoare annotation was computed. [2018-11-18 10:38:38,456 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 151 175) no Hoare annotation was computed. [2018-11-18 10:38:38,456 INFO L421 ceAbstractionStarter]: At program point L165(line 165) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 ~pumpRunning~0)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 10:38:38,456 INFO L425 ceAbstractionStarter]: For program point L163(lines 163 169) no Hoare annotation was computed. [2018-11-18 10:38:38,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:38:38 BoogieIcfgContainer [2018-11-18 10:38:38,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:38:38,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:38:38,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:38:38,469 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:38:38,470 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:38:27" (3/4) ... [2018-11-18 10:38:38,473 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:38:38,477 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 10:38:38,478 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-11-18 10:38:38,479 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:38:38,479 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 10:38:38,479 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 10:38:38,479 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 10:38:38,479 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 10:38:38,479 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 10:38:38,479 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 10:38:38,479 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 10:38:38,479 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 10:38:38,480 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 10:38:38,480 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 10:38:38,480 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-11-18 10:38:38,486 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-11-18 10:38:38,486 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 10:38:38,486 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 10:38:38,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 == pumpRunning && 1 <= methaneLevelCritical) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter == 0) [2018-11-18 10:38:38,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 10:38:38,537 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_cb30d4f4-0d97-4461-81e7-9410117059c0/bin-2019/utaipan/witness.graphml [2018-11-18 10:38:38,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:38:38,538 INFO L168 Benchmark]: Toolchain (without parser) took 12080.51 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 629.1 MB). Free memory was 950.0 MB in the beginning and 1.2 GB in the end (delta: -254.2 MB). Peak memory consumption was 375.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:38:38,539 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:38:38,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:38:38,539 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:38:38,539 INFO L168 Benchmark]: Boogie Preprocessor took 36.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:38:38,539 INFO L168 Benchmark]: RCFGBuilder took 520.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:38:38,540 INFO L168 Benchmark]: TraceAbstraction took 11028.22 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 516.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -171.7 MB). Peak memory consumption was 829.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:38:38,540 INFO L168 Benchmark]: Witness Printer took 68.42 ms. Allocated memory is still 1.7 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 414.2 kB). Peak memory consumption was 414.2 kB. Max. memory is 11.5 GB. [2018-11-18 10:38:38,541 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 394.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -147.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.10 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 520.98 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 61.3 MB). Peak memory consumption was 61.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11028.22 ms. Allocated memory was 1.1 GB in the beginning and 1.7 GB in the end (delta: 516.9 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -171.7 MB). Peak memory consumption was 829.8 MB. Max. memory is 11.5 GB. * Witness Printer took 68.42 ms. Allocated memory is still 1.7 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 414.2 kB). Peak memory consumption was 414.2 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: 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: 179]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: ((((((0 == pumpRunning && 1 <= methaneLevelCritical) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter == 0) - InvariantResult [Line: 689]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 145 locations, 1 error locations. SAFE Result, 10.9s OverallTime, 12 OverallIterations, 4 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 2.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2093 SDtfs, 1076 SDslu, 4328 SDs, 0 SdLazy, 1852 SolverSat, 332 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 948 GetRequests, 834 SyntacticMatches, 14 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=908occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.2s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 178 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 60 LocationsWithAnnotation, 1887 PreInvPairs, 2013 NumberOfFragments, 1582 HoareAnnotationTreeSize, 1887 FomulaSimplifications, 4413 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 60 FomulaSimplificationsInter, 10565 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1496 NumberOfCodeBlocks, 1496 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1891 ConstructedInterpolants, 0 QuantifiedInterpolants, 356337 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2200 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 18 InterpolantComputations, 12 PerfectInterpolantSequences, 296/312 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...