./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/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 3c089be7b4887d2975165f6135c093492cb2095b ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 09:59:58,004 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 09:59:58,005 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 09:59:58,012 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 09:59:58,013 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 09:59:58,013 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 09:59:58,014 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 09:59:58,015 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 09:59:58,017 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 09:59:58,017 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 09:59:58,018 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 09:59:58,018 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 09:59:58,019 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 09:59:58,020 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 09:59:58,020 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 09:59:58,021 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 09:59:58,022 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 09:59:58,023 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 09:59:58,024 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 09:59:58,026 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 09:59:58,027 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 09:59:58,028 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 09:59:58,030 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 09:59:58,030 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 09:59:58,030 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 09:59:58,031 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 09:59:58,032 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 09:59:58,033 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 09:59:58,033 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 09:59:58,034 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 09:59:58,034 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 09:59:58,035 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 09:59:58,035 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 09:59:58,035 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 09:59:58,036 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 09:59:58,036 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 09:59:58,037 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 09:59:58,048 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 09:59:58,048 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 09:59:58,049 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 09:59:58,049 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 09:59:58,049 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 09:59:58,049 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 09:59:58,049 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 09:59:58,049 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 09:59:58,050 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 09:59:58,050 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 09:59:58,050 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 09:59:58,050 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 09:59:58,050 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 09:59:58,051 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 09:59:58,051 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 09:59:58,051 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 09:59:58,051 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 09:59:58,051 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 09:59:58,051 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 09:59:58,052 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 09:59:58,052 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 09:59:58,052 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 09:59:58,052 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 09:59:58,052 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 09:59:58,052 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 09:59:58,052 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 09:59:58,052 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 09:59:58,053 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 09:59:58,053 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 09:59:58,053 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 09:59:58,053 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 09:59:58,053 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 09:59:58,053 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 09:59:58,054 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 09:59:58,054 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 09:59:58,054 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 09:59:58,054 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 09:59:58,054 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_781b1f11-0503-4238-85f5-4984490f4809/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 -> 3c089be7b4887d2975165f6135c093492cb2095b [2018-11-23 09:59:58,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 09:59:58,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 09:59:58,090 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 09:59:58,091 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 09:59:58,092 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 09:59:58,092 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-11-23 09:59:58,133 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/data/edc0dfd48/8475e99f3253468ea98da00406ecfc9b/FLAGb4dc34a32 [2018-11-23 09:59:58,509 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 09:59:58,509 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-11-23 09:59:58,516 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/data/edc0dfd48/8475e99f3253468ea98da00406ecfc9b/FLAGb4dc34a32 [2018-11-23 09:59:58,899 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/data/edc0dfd48/8475e99f3253468ea98da00406ecfc9b [2018-11-23 09:59:58,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 09:59:58,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 09:59:58,903 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 09:59:58,903 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 09:59:58,905 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 09:59:58,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:59:58" (1/1) ... [2018-11-23 09:59:58,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40bc55f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:58, skipping insertion in model container [2018-11-23 09:59:58,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:59:58" (1/1) ... [2018-11-23 09:59:58,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 09:59:58,945 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 09:59:59,148 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:59:59,156 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 09:59:59,260 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 09:59:59,278 INFO L195 MainTranslator]: Completed translation [2018-11-23 09:59:59,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59 WrapperNode [2018-11-23 09:59:59,278 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 09:59:59,279 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 09:59:59,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 09:59:59,279 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 09:59:59,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (1/1) ... [2018-11-23 09:59:59,297 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (1/1) ... [2018-11-23 09:59:59,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 09:59:59,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 09:59:59,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 09:59:59,305 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 09:59:59,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (1/1) ... [2018-11-23 09:59:59,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (1/1) ... [2018-11-23 09:59:59,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (1/1) ... [2018-11-23 09:59:59,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (1/1) ... [2018-11-23 09:59:59,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (1/1) ... [2018-11-23 09:59:59,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (1/1) ... [2018-11-23 09:59:59,333 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (1/1) ... [2018-11-23 09:59:59,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 09:59:59,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 09:59:59,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 09:59:59,336 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 09:59:59,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 09:59:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-23 09:59:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-23 09:59:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 09:59:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 09:59:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-23 09:59:59,381 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-23 09:59:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 09:59:59,381 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-23 09:59:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-23 09:59:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-23 09:59:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-23 09:59:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-23 09:59:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-23 09:59:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-23 09:59:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-23 09:59:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-23 09:59:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-23 09:59:59,382 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-23 09:59:59,382 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-23 09:59:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-23 09:59:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-23 09:59:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-23 09:59:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-23 09:59:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-23 09:59:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-23 09:59:59,383 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-23 09:59:59,383 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-23 09:59:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-23 09:59:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-23 09:59:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-23 09:59:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-23 09:59:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-23 09:59:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-23 09:59:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-23 09:59:59,384 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-23 09:59:59,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 09:59:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 09:59:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-23 09:59:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-23 09:59:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-23 09:59:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-23 09:59:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-23 09:59:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-23 09:59:59,385 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-23 09:59:59,385 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-23 09:59:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-23 09:59:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-23 09:59:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-23 09:59:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-23 09:59:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-23 09:59:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-23 09:59:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-23 09:59:59,386 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-23 09:59:59,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-23 09:59:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 09:59:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 09:59:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-23 09:59:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-23 09:59:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-23 09:59:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-23 09:59:59,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 09:59:59,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 09:59:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-23 09:59:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-23 09:59:59,824 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 09:59:59,824 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-23 09:59:59,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:59:59 BoogieIcfgContainer [2018-11-23 09:59:59,825 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 09:59:59,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 09:59:59,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 09:59:59,828 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 09:59:59,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:59:58" (1/3) ... [2018-11-23 09:59:59,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9d5764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:59:59, skipping insertion in model container [2018-11-23 09:59:59,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:59:59" (2/3) ... [2018-11-23 09:59:59,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d9d5764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:59:59, skipping insertion in model container [2018-11-23 09:59:59,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:59:59" (3/3) ... [2018-11-23 09:59:59,831 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-11-23 09:59:59,839 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 09:59:59,846 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 09:59:59,856 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 09:59:59,874 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 09:59:59,874 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 09:59:59,874 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 09:59:59,875 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 09:59:59,875 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 09:59:59,875 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 09:59:59,875 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 09:59:59,875 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 09:59:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2018-11-23 09:59:59,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-23 09:59:59,898 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 09:59:59,899 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 09:59:59,900 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 09:59:59,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 09:59:59,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1697508556, now seen corresponding path program 1 times [2018-11-23 09:59:59,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 09:59:59,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:59:59,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 09:59:59,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 09:59:59,941 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:00,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:00,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:00:00,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:00:00,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 10:00:00,092 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:00,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 10:00:00,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 10:00:00,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 10:00:00,104 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2018-11-23 10:00:00,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:00,137 INFO L93 Difference]: Finished difference Result 308 states and 383 transitions. [2018-11-23 10:00:00,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 10:00:00,138 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-23 10:00:00,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:00,149 INFO L225 Difference]: With dead ends: 308 [2018-11-23 10:00:00,149 INFO L226 Difference]: Without dead ends: 154 [2018-11-23 10:00:00,153 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 10:00:00,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-11-23 10:00:00,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2018-11-23 10:00:00,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2018-11-23 10:00:00,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2018-11-23 10:00:00,193 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 46 [2018-11-23 10:00:00,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:00,193 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2018-11-23 10:00:00,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 10:00:00,193 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2018-11-23 10:00:00,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-11-23 10:00:00,196 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:00:00,196 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:00:00,196 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:00:00,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:00,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1146648345, now seen corresponding path program 1 times [2018-11-23 10:00:00,196 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 10:00:00,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:00,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:00,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:00,198 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:00,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:00:00,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:00:00,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:00:00,280 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:00,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:00:00,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:00:00,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:00:00,282 INFO L87 Difference]: Start difference. First operand 154 states and 183 transitions. Second operand 3 states. [2018-11-23 10:00:00,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:00,303 INFO L93 Difference]: Finished difference Result 253 states and 301 transitions. [2018-11-23 10:00:00,303 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:00:00,303 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-11-23 10:00:00,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:00,305 INFO L225 Difference]: With dead ends: 253 [2018-11-23 10:00:00,305 INFO L226 Difference]: Without dead ends: 145 [2018-11-23 10:00:00,306 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:00:00,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-11-23 10:00:00,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-11-23 10:00:00,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-23 10:00:00,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 171 transitions. [2018-11-23 10:00:00,322 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 171 transitions. Word has length 47 [2018-11-23 10:00:00,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:00,322 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 171 transitions. [2018-11-23 10:00:00,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:00:00,322 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 171 transitions. [2018-11-23 10:00:00,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-23 10:00:00,324 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:00:00,324 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:00:00,324 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:00:00,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:00,324 INFO L82 PathProgramCache]: Analyzing trace with hash 244280267, now seen corresponding path program 1 times [2018-11-23 10:00:00,324 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 10:00:00,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:00,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:00,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:00,325 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:00,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:00:00,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:00:00,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 10:00:00,420 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:00,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 10:00:00,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 10:00:00,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:00:00,421 INFO L87 Difference]: Start difference. First operand 145 states and 171 transitions. Second operand 3 states. [2018-11-23 10:00:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:00,442 INFO L93 Difference]: Finished difference Result 266 states and 319 transitions. [2018-11-23 10:00:00,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 10:00:00,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-11-23 10:00:00,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:00,444 INFO L225 Difference]: With dead ends: 266 [2018-11-23 10:00:00,444 INFO L226 Difference]: Without dead ends: 145 [2018-11-23 10:00:00,445 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 10:00:00,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-11-23 10:00:00,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2018-11-23 10:00:00,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-11-23 10:00:00,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2018-11-23 10:00:00,457 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 52 [2018-11-23 10:00:00,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:00,457 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2018-11-23 10:00:00,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 10:00:00,457 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2018-11-23 10:00:00,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-23 10:00:00,459 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:00:00,459 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:00:00,460 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:00:00,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:00,460 INFO L82 PathProgramCache]: Analyzing trace with hash 97775123, now seen corresponding path program 1 times [2018-11-23 10:00:00,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 10:00:00,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:00,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:00,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:00,461 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:00,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:00:00,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:00:00,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 10:00:00,576 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:00,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 10:00:00,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 10:00:00,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-23 10:00:00,577 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 5 states. [2018-11-23 10:00:01,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:01,048 INFO L93 Difference]: Finished difference Result 380 states and 460 transitions. [2018-11-23 10:00:01,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 10:00:01,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2018-11-23 10:00:01,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:01,051 INFO L225 Difference]: With dead ends: 380 [2018-11-23 10:00:01,051 INFO L226 Difference]: Without dead ends: 259 [2018-11-23 10:00:01,052 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-23 10:00:01,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-11-23 10:00:01,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 240. [2018-11-23 10:00:01,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2018-11-23 10:00:01,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 272 transitions. [2018-11-23 10:00:01,077 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 272 transitions. Word has length 70 [2018-11-23 10:00:01,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:01,077 INFO L480 AbstractCegarLoop]: Abstraction has 240 states and 272 transitions. [2018-11-23 10:00:01,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 10:00:01,078 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 272 transitions. [2018-11-23 10:00:01,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-23 10:00:01,079 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:00:01,079 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:00:01,080 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:00:01,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:01,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1410600138, now seen corresponding path program 1 times [2018-11-23 10:00:01,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 10:00:01,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:01,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:01,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:01,082 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:01,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:00:01,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:00:01,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-23 10:00:01,161 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:01,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 10:00:01,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 10:00:01,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 10:00:01,162 INFO L87 Difference]: Start difference. First operand 240 states and 272 transitions. Second operand 8 states. [2018-11-23 10:00:01,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:01,206 INFO L93 Difference]: Finished difference Result 463 states and 539 transitions. [2018-11-23 10:00:01,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 10:00:01,207 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 84 [2018-11-23 10:00:01,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:01,210 INFO L225 Difference]: With dead ends: 463 [2018-11-23 10:00:01,210 INFO L226 Difference]: Without dead ends: 247 [2018-11-23 10:00:01,211 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-23 10:00:01,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2018-11-23 10:00:01,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 244. [2018-11-23 10:00:01,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2018-11-23 10:00:01,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 276 transitions. [2018-11-23 10:00:01,227 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 276 transitions. Word has length 84 [2018-11-23 10:00:01,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:01,227 INFO L480 AbstractCegarLoop]: Abstraction has 244 states and 276 transitions. [2018-11-23 10:00:01,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 10:00:01,227 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 276 transitions. [2018-11-23 10:00:01,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-11-23 10:00:01,228 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:00:01,228 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:00:01,229 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:00:01,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:01,229 INFO L82 PathProgramCache]: Analyzing trace with hash 709000264, now seen corresponding path program 1 times [2018-11-23 10:00:01,229 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 10:00:01,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:01,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:01,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:01,230 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:01,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:01,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:00:01,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:00:01,305 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 10:00:01,305 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:01,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 10:00:01,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 10:00:01,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 10:00:01,306 INFO L87 Difference]: Start difference. First operand 244 states and 276 transitions. Second operand 6 states. [2018-11-23 10:00:01,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:01,494 INFO L93 Difference]: Finished difference Result 669 states and 778 transitions. [2018-11-23 10:00:01,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 10:00:01,495 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-11-23 10:00:01,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:01,497 INFO L225 Difference]: With dead ends: 669 [2018-11-23 10:00:01,497 INFO L226 Difference]: Without dead ends: 449 [2018-11-23 10:00:01,498 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-23 10:00:01,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2018-11-23 10:00:01,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 443. [2018-11-23 10:00:01,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2018-11-23 10:00:01,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 502 transitions. [2018-11-23 10:00:01,525 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 502 transitions. Word has length 84 [2018-11-23 10:00:01,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:01,525 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 502 transitions. [2018-11-23 10:00:01,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 10:00:01,525 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 502 transitions. [2018-11-23 10:00:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-23 10:00:01,526 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:00:01,526 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:00:01,527 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:00:01,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:01,527 INFO L82 PathProgramCache]: Analyzing trace with hash -1045486588, now seen corresponding path program 1 times [2018-11-23 10:00:01,527 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 10:00:01,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:01,528 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:01,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:01,528 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:01,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:01,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:00:01,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:00:01,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 10:00:01,588 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:01,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 10:00:01,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 10:00:01,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 10:00:01,589 INFO L87 Difference]: Start difference. First operand 443 states and 502 transitions. Second operand 7 states. [2018-11-23 10:00:02,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:02,065 INFO L93 Difference]: Finished difference Result 478 states and 556 transitions. [2018-11-23 10:00:02,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 10:00:02,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 88 [2018-11-23 10:00:02,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:02,068 INFO L225 Difference]: With dead ends: 478 [2018-11-23 10:00:02,068 INFO L226 Difference]: Without dead ends: 475 [2018-11-23 10:00:02,069 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-11-23 10:00:02,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2018-11-23 10:00:02,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 443. [2018-11-23 10:00:02,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2018-11-23 10:00:02,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 501 transitions. [2018-11-23 10:00:02,092 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 501 transitions. Word has length 88 [2018-11-23 10:00:02,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:02,093 INFO L480 AbstractCegarLoop]: Abstraction has 443 states and 501 transitions. [2018-11-23 10:00:02,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 10:00:02,093 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 501 transitions. [2018-11-23 10:00:02,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-23 10:00:02,094 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:00:02,094 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:00:02,094 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:00:02,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:02,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1921303165, now seen corresponding path program 1 times [2018-11-23 10:00:02,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 10:00:02,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:02,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:02,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:02,095 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:02,152 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 10:00:02,152 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:00:02,152 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 10:00:02,152 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:02,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 10:00:02,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 10:00:02,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 10:00:02,153 INFO L87 Difference]: Start difference. First operand 443 states and 501 transitions. Second operand 6 states. [2018-11-23 10:00:02,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:02,211 INFO L93 Difference]: Finished difference Result 876 states and 1014 transitions. [2018-11-23 10:00:02,212 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 10:00:02,212 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-11-23 10:00:02,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:02,214 INFO L225 Difference]: With dead ends: 876 [2018-11-23 10:00:02,215 INFO L226 Difference]: Without dead ends: 457 [2018-11-23 10:00:02,215 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 10:00:02,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2018-11-23 10:00:02,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 453. [2018-11-23 10:00:02,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 453 states. [2018-11-23 10:00:02,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 511 transitions. [2018-11-23 10:00:02,231 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 511 transitions. Word has length 104 [2018-11-23 10:00:02,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:02,231 INFO L480 AbstractCegarLoop]: Abstraction has 453 states and 511 transitions. [2018-11-23 10:00:02,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 10:00:02,232 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 511 transitions. [2018-11-23 10:00:02,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-23 10:00:02,233 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:00:02,233 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:00:02,233 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:00:02,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:02,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1593561920, now seen corresponding path program 1 times [2018-11-23 10:00:02,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 10:00:02,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:02,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:02,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:02,234 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:02,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 10:00:02,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 10:00:02,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 10:00:02,294 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:02,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 10:00:02,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 10:00:02,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 10:00:02,295 INFO L87 Difference]: Start difference. First operand 453 states and 511 transitions. Second operand 4 states. [2018-11-23 10:00:02,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:02,423 INFO L93 Difference]: Finished difference Result 1353 states and 1602 transitions. [2018-11-23 10:00:02,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 10:00:02,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2018-11-23 10:00:02,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:02,426 INFO L225 Difference]: With dead ends: 1353 [2018-11-23 10:00:02,426 INFO L226 Difference]: Without dead ends: 924 [2018-11-23 10:00:02,427 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 10:00:02,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 924 states. [2018-11-23 10:00:02,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 924 to 909. [2018-11-23 10:00:02,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 909 states. [2018-11-23 10:00:02,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1055 transitions. [2018-11-23 10:00:02,458 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1055 transitions. Word has length 104 [2018-11-23 10:00:02,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:02,458 INFO L480 AbstractCegarLoop]: Abstraction has 909 states and 1055 transitions. [2018-11-23 10:00:02,458 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 10:00:02,458 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1055 transitions. [2018-11-23 10:00:02,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-23 10:00:02,460 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:00:02,460 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:00:02,460 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:00:02,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:02,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1641621798, now seen corresponding path program 1 times [2018-11-23 10:00:02,460 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 10:00:02,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:02,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:02,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:02,461 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:02,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 10:00:02,560 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 10:00:02,561 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 10:00:02,561 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2018-11-23 10:00:02,563 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [59], [63], [64], [65], [80], [83], [85], [94], [98], [102], [105], [110], [113], [118], [124], [129], [137], [138], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [169], [171], [198], [199], [205], [209], [223], [229], [232], [234], [237], [247], [250], [254], [255], [258], [260], [263], [265], [268], [277], [278], [279], [280], [281], [282], [283], [284], [285], [293], [294], [297], [299], [300], [307], [308], [309], [310], [311], [312], [315], [319], [320], [321], [322], [323], [324], [331], [332], [333], [335], [336], [337], [339], [340], [341], [342], [347], [348], [349], [350], [351] [2018-11-23 10:00:02,588 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 10:00:02,588 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 10:00:03,020 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 10:00:03,021 INFO L272 AbstractInterpreter]: Visited 106 different actions 108 times. Never merged. Never widened. Performed 3374 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3374 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-23 10:00:03,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:03,050 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 10:00:03,050 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 10:00:03,050 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 10:00:03,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:03,061 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 10:00:03,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:03,163 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:00:03,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 10:00:03,348 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 10:00:04,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-23 10:00:04,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 10:00:04,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-23 10:00:04,016 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:04,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 10:00:04,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 10:00:04,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 10:00:04,017 INFO L87 Difference]: Start difference. First operand 909 states and 1055 transitions. Second operand 8 states. [2018-11-23 10:00:04,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:04,233 INFO L93 Difference]: Finished difference Result 1764 states and 2059 transitions. [2018-11-23 10:00:04,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 10:00:04,234 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2018-11-23 10:00:04,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:04,236 INFO L225 Difference]: With dead ends: 1764 [2018-11-23 10:00:04,236 INFO L226 Difference]: Without dead ends: 879 [2018-11-23 10:00:04,238 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 198 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 10:00:04,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2018-11-23 10:00:04,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 879. [2018-11-23 10:00:04,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 879 states. [2018-11-23 10:00:04,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1006 transitions. [2018-11-23 10:00:04,266 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1006 transitions. Word has length 108 [2018-11-23 10:00:04,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:04,266 INFO L480 AbstractCegarLoop]: Abstraction has 879 states and 1006 transitions. [2018-11-23 10:00:04,266 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 10:00:04,266 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1006 transitions. [2018-11-23 10:00:04,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-11-23 10:00:04,268 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 10:00:04,269 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 10:00:04,269 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 10:00:04,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:04,270 INFO L82 PathProgramCache]: Analyzing trace with hash 885904890, now seen corresponding path program 1 times [2018-11-23 10:00:04,270 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 10:00:04,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:04,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:04,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 10:00:04,271 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 10:00:04,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-23 10:00:04,386 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 10:00:04,386 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-23 10:00:04,386 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 179 with the following transitions: [2018-11-23 10:00:04,387 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [21], [23], [29], [33], [36], [37], [38], [39], [41], [44], [48], [49], [50], [53], [55], [56], [59], [63], [64], [65], [68], [70], [76], [80], [83], [84], [85], [94], [98], [102], [105], [108], [110], [113], [116], [118], [124], [129], [137], [138], [139], [140], [141], [142], [143], [145], [150], [153], [154], [156], [161], [163], [164], [169], [171], [198], [199], [202], [205], [209], [215], [218], [222], [223], [229], [232], [234], [237], [244], [247], [250], [254], [255], [258], [260], [263], [265], [268], [274], [276], [277], [278], [279], [280], [281], [282], [283], [284], [285], [287], [288], [291], [292], [293], [294], [295], [296], [297], [299], [300], [301], [302], [305], [306], [307], [308], [309], [310], [311], [312], [315], [316], [319], [320], [321], [322], [323], [324], [329], [330], [331], [332], [333], [334], [335], [336], [337], [339], [340], [341], [342], [345], [346], [347], [348], [349], [350], [351] [2018-11-23 10:00:04,391 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-23 10:00:04,391 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-23 10:00:07,603 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-23 10:00:07,603 INFO L272 AbstractInterpreter]: Visited 145 different actions 1605 times. Merged at 21 different actions 110 times. Never widened. Performed 58307 root evaluator evaluations with a maximum evaluation depth of 5. Performed 58307 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 26 fixpoints after 5 different actions. Largest state had 133 variables. [2018-11-23 10:00:07,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 10:00:07,609 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-23 10:00:07,609 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 10:00:07,609 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/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 [2018-11-23 10:00:07,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 10:00:07,616 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-23 10:00:07,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 10:00:07,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 10:00:07,818 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-23 10:00:07,818 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-23 10:00:08,175 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-23 10:00:08,200 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-23 10:00:08,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-23 10:00:08,201 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-23 10:00:08,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-23 10:00:08,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-23 10:00:08,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 10:00:08,202 INFO L87 Difference]: Start difference. First operand 879 states and 1006 transitions. Second operand 8 states. [2018-11-23 10:00:08,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 10:00:08,393 INFO L93 Difference]: Finished difference Result 1475 states and 1712 transitions. [2018-11-23 10:00:08,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 10:00:08,393 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 178 [2018-11-23 10:00:08,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 10:00:08,394 INFO L225 Difference]: With dead ends: 1475 [2018-11-23 10:00:08,394 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 10:00:08,397 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 341 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-23 10:00:08,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 10:00:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 10:00:08,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 10:00:08,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 10:00:08,398 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 178 [2018-11-23 10:00:08,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 10:00:08,398 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 10:00:08,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-23 10:00:08,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 10:00:08,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 10:00:08,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 10:00:08,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 10:00:08,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 10:00:08,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 10:00:08,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-23 10:00:08,956 WARN L180 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 30 [2018-11-23 10:00:10,083 WARN L180 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2018-11-23 10:00:10,616 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 391 397) the Hoare annotation is: true [2018-11-23 10:00:10,616 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 391 397) no Hoare annotation was computed. [2018-11-23 10:00:10,616 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 398 406) no Hoare annotation was computed. [2018-11-23 10:00:10,616 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 398 406) the Hoare annotation is: true [2018-11-23 10:00:10,616 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 398 406) no Hoare annotation was computed. [2018-11-23 10:00:10,616 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 846 868) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 10:00:10,616 INFO L444 ceAbstractionStarter]: At program point L858(line 858) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= main_~tmp~10 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 10:00:10,617 INFO L444 ceAbstractionStarter]: At program point L858-1(line 858) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= main_~tmp~10 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 10:00:10,617 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 846 868) no Hoare annotation was computed. [2018-11-23 10:00:10,617 INFO L448 ceAbstractionStarter]: For program point L856(lines 856 863) no Hoare annotation was computed. [2018-11-23 10:00:10,617 INFO L448 ceAbstractionStarter]: For program point L856-1(lines 856 863) no Hoare annotation was computed. [2018-11-23 10:00:10,617 INFO L448 ceAbstractionStarter]: For program point L854(line 854) no Hoare annotation was computed. [2018-11-23 10:00:10,617 INFO L444 ceAbstractionStarter]: At program point L853(line 853) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 10:00:10,617 INFO L444 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 10:00:10,617 INFO L444 ceAbstractionStarter]: At program point L852-1(line 852) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 10:00:10,617 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 846 868) no Hoare annotation was computed. [2018-11-23 10:00:10,618 INFO L444 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-11-23 10:00:10,618 INFO L444 ceAbstractionStarter]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-11-23 10:00:10,618 INFO L448 ceAbstractionStarter]: For program point L121(lines 121 129) no Hoare annotation was computed. [2018-11-23 10:00:10,618 INFO L444 ceAbstractionStarter]: At program point L119(line 119) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-11-23 10:00:10,618 INFO L448 ceAbstractionStarter]: For program point L119-1(line 119) no Hoare annotation was computed. [2018-11-23 10:00:10,618 INFO L448 ceAbstractionStarter]: For program point L117(lines 117 134) no Hoare annotation was computed. [2018-11-23 10:00:10,618 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 113 137) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-11-23 10:00:10,618 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 113 137) no Hoare annotation was computed. [2018-11-23 10:00:10,618 INFO L444 ceAbstractionStarter]: At program point L132(line 132) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-11-23 10:00:10,618 INFO L448 ceAbstractionStarter]: For program point L132-1(lines 113 137) no Hoare annotation was computed. [2018-11-23 10:00:10,618 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 208 216) no Hoare annotation was computed. [2018-11-23 10:00:10,618 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 208 216) the Hoare annotation is: true [2018-11-23 10:00:10,618 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 208 216) no Hoare annotation was computed. [2018-11-23 10:00:10,618 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 272 290) the Hoare annotation is: true [2018-11-23 10:00:10,618 INFO L448 ceAbstractionStarter]: For program point L281(lines 281 285) no Hoare annotation was computed. [2018-11-23 10:00:10,618 INFO L451 ceAbstractionStarter]: At program point L279(line 279) the Hoare annotation is: true [2018-11-23 10:00:10,618 INFO L448 ceAbstractionStarter]: For program point L281-2(lines 281 285) no Hoare annotation was computed. [2018-11-23 10:00:10,618 INFO L448 ceAbstractionStarter]: For program point L279-1(line 279) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 272 290) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 272 290) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 384 390) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 384 390) the Hoare annotation is: true [2018-11-23 10:00:10,619 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 836 845) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 836 845) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 836 845) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 197 207) the Hoare annotation is: true [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 197 207) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L451 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: true [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point L202-1(line 202) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 197 207) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 189 196) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (= ~systemActive~0 0)) (.cse2 (= |old(~pumpRunning~0)| 0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse1 .cse0 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 189 196) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 189 196) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point L954(lines 954 960) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 950 963) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 950 963) the Hoare annotation is: true [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 950 963) no Hoare annotation was computed. [2018-11-23 10:00:10,619 INFO L444 ceAbstractionStarter]: At program point L158(line 158) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse4) (or .cse3 .cse0 .cse1) (or .cse1 .cse2 .cse4))) [2018-11-23 10:00:10,619 INFO L448 ceAbstractionStarter]: For program point L158-1(lines 139 163) no Hoare annotation was computed. [2018-11-23 10:00:10,620 INFO L444 ceAbstractionStarter]: At program point L153(line 153) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= ~systemActive~0 0))) (and (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse0))) [2018-11-23 10:00:10,620 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 139 163) no Hoare annotation was computed. [2018-11-23 10:00:10,620 INFO L444 ceAbstractionStarter]: At program point L149(line 149) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2) .cse4) .cse1))) [2018-11-23 10:00:10,620 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 139 163) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0))) [2018-11-23 10:00:10,620 INFO L448 ceAbstractionStarter]: For program point L147(lines 147 155) no Hoare annotation was computed. [2018-11-23 10:00:10,620 INFO L444 ceAbstractionStarter]: At program point L145(line 145) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse1 .cse4))) [2018-11-23 10:00:10,620 INFO L448 ceAbstractionStarter]: For program point L145-1(line 145) no Hoare annotation was computed. [2018-11-23 10:00:10,620 INFO L448 ceAbstractionStarter]: For program point L143(lines 143 160) no Hoare annotation was computed. [2018-11-23 10:00:10,620 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 79 85) no Hoare annotation was computed. [2018-11-23 10:00:10,620 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 79 85) the Hoare annotation is: true [2018-11-23 10:00:10,620 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 303 368) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0)) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 10:00:10,620 INFO L448 ceAbstractionStarter]: For program point L351(lines 351 355) no Hoare annotation was computed. [2018-11-23 10:00:10,620 INFO L444 ceAbstractionStarter]: At program point L351-2(lines 343 356) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 10:00:10,621 INFO L448 ceAbstractionStarter]: For program point L314(lines 313 360) no Hoare annotation was computed. [2018-11-23 10:00:10,621 INFO L444 ceAbstractionStarter]: At program point L345(line 345) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 10:00:10,621 INFO L448 ceAbstractionStarter]: For program point L343(lines 343 356) no Hoare annotation was computed. [2018-11-23 10:00:10,621 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 303 368) no Hoare annotation was computed. [2018-11-23 10:00:10,621 INFO L444 ceAbstractionStarter]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 10:00:10,621 INFO L448 ceAbstractionStarter]: For program point L333(lines 333 339) no Hoare annotation was computed. [2018-11-23 10:00:10,621 INFO L448 ceAbstractionStarter]: For program point L333-1(lines 333 339) no Hoare annotation was computed. [2018-11-23 10:00:10,621 INFO L444 ceAbstractionStarter]: At program point L358(lines 313 360) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (= 0 ~pumpRunning~0) .cse0 (<= 1 ~methaneLevelCritical~0) .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 10:00:10,621 INFO L444 ceAbstractionStarter]: At program point L325(line 325) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 0))) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (and (= 0 ~pumpRunning~0) .cse0 .cse1) (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)))) [2018-11-23 10:00:10,621 INFO L448 ceAbstractionStarter]: For program point L323(lines 323 329) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point L323-1(lines 323 329) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point L315(lines 315 319) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L444 ceAbstractionStarter]: At program point L361(lines 312 362) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= |old(~systemActive~0)| 0) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 303 368) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 164 171) the Hoare annotation is: (or (= ~waterLevel~0 1) (not (= 0 |old(~pumpRunning~0)|)) (= ~systemActive~0 0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~methaneLevelCritical~0 0))) [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 164 171) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 164 171) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 964 972) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 964 972) the Hoare annotation is: true [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 964 972) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~pumpRunning~0)| ~pumpRunning~0) [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L444 ceAbstractionStarter]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse3 .cse1 .cse2))) [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point L177-1(line 177) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 172 188) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 172 188) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse3 .cse1 .cse2))) [2018-11-23 10:00:10,622 INFO L444 ceAbstractionStarter]: At program point L183(line 183) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= ~systemActive~0 0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point L183-1(lines 172 188) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point L179(lines 179 185) no Hoare annotation was computed. [2018-11-23 10:00:10,622 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 253 271) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point L262(lines 262 266) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 253 271) the Hoare annotation is: true [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 253 271) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L451 ceAbstractionStarter]: At program point L260(line 260) the Hoare annotation is: true [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point L262-2(lines 262 266) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point L260-1(line 260) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 897 908) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1) (not (= 0 ~pumpRunning~0)) .cse0) (or (= 0 ~methaneLevelCritical~0) .cse0 (not (= |old(~methaneLevelCritical~0)| 0))))) [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 897 908) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L451 ceAbstractionStarter]: At program point L800(lines 775 804) the Hoare annotation is: true [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 775 804) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 775 804) the Hoare annotation is: true [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point L796(line 796) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point L789(lines 789 793) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L451 ceAbstractionStarter]: At program point L789-1(lines 789 793) the Hoare annotation is: true [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point L786(line 786) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L451 ceAbstractionStarter]: At program point L785-2(lines 785 799) the Hoare annotation is: true [2018-11-23 10:00:10,623 INFO L451 ceAbstractionStarter]: At program point L781(line 781) the Hoare annotation is: true [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point L781-1(line 781) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 909 917) the Hoare annotation is: true [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 909 917) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 909 917) no Hoare annotation was computed. [2018-11-23 10:00:10,623 INFO L444 ceAbstractionStarter]: At program point L61(line 61) the Hoare annotation is: (let ((.cse0 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or (and (not (= |old(~pumpRunning~0)| 0)) .cse2) .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 .cse2))) [2018-11-23 10:00:10,624 INFO L448 ceAbstractionStarter]: For program point L59(lines 58 77) no Hoare annotation was computed. [2018-11-23 10:00:10,624 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 55 78) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (= 1 ~waterLevel~0)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (not .cse7)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse1 (= ~systemActive~0 0)) (.cse8 (not (= ~waterLevel~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1 .cse5 .cse6) (or .cse3 .cse1 .cse0) (or .cse5 .cse4 .cse1 .cse6 .cse2) (or .cse7 .cse8 .cse1 .cse2) (or .cse3 .cse7 .cse1 .cse8)))) [2018-11-23 10:00:10,624 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 55 78) no Hoare annotation was computed. [2018-11-23 10:00:10,624 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 55 78) no Hoare annotation was computed. [2018-11-23 10:00:10,624 INFO L444 ceAbstractionStarter]: At program point L68(line 68) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (= 1 ~waterLevel~0)) (.cse6 (not .cse7)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse8 (not (= ~waterLevel~0 1))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse0) (or .cse3 .cse4 .cse1 .cse5 .cse6) (or .cse5 .cse4 .cse1 .cse6 .cse2) (or .cse7 (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse8 .cse2) (or .cse3 .cse7 .cse8 .cse4 .cse1)))) [2018-11-23 10:00:10,624 INFO L444 ceAbstractionStarter]: At program point L66(lines 66 72) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse9 (not (= ~waterLevel~0 1))) (.cse0 (= |old(~waterLevel~0)| 1))) (let ((.cse7 (= 1 ~waterLevel~0)) (.cse8 (not .cse0)) (.cse2 (and (not .cse1) .cse9)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (= 0 ~pumpRunning~0)) (.cse5 (< ~methaneLevelCritical~0 1)) (.cse6 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1) (or .cse5 .cse6 .cse1 .cse7 .cse8) (or .cse7 .cse6 .cse1 .cse8 .cse3) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse9 .cse6 .cse1)))) [2018-11-23 10:00:10,624 INFO L451 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 873 884) the Hoare annotation is: true [2018-11-23 10:00:10,624 INFO L448 ceAbstractionStarter]: For program point L877-1(lines 873 884) no Hoare annotation was computed. [2018-11-23 10:00:10,624 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 873 884) no Hoare annotation was computed. [2018-11-23 10:00:10,624 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 829 835) no Hoare annotation was computed. [2018-11-23 10:00:10,624 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 829 835) the Hoare annotation is: true [2018-11-23 10:00:10,624 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (not (= ~systemActive~0 0))) [2018-11-23 10:00:10,625 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point startSystemEXIT(lines 291 298) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L444 ceAbstractionStarter]: At program point startSystemENTRY(lines 291 298) the Hoare annotation is: (let ((.cse1 (not (= ~systemActive~0 0))) (.cse0 (= |old(~systemActive~0)| 0))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point startSystemFINAL(lines 291 298) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L444 ceAbstractionStarter]: At program point L97(line 97) the Hoare annotation is: (let ((.cse0 (not (= ~waterLevel~0 1))) (.cse2 (= ~systemActive~0 0)) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) (and .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) .cse2) (or .cse2 (= |old(~pumpRunning~0)| 0) .cse3) (or .cse2 .cse0 .cse3) (or .cse2 .cse1 .cse3))) [2018-11-23 10:00:10,625 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 87 111) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 103) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L444 ceAbstractionStarter]: At program point L93(line 93) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (= ~systemActive~0 0))) (and (or .cse0 .cse1 .cse2) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or .cse0 (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point L93-1(line 93) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 87 111) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point L91(lines 91 108) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L444 ceAbstractionStarter]: At program point L106(line 106) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse1 .cse2))) [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point L106-1(lines 87 111) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L444 ceAbstractionStarter]: At program point L101(line 101) the Hoare annotation is: (let ((.cse1 (= ~systemActive~0 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or .cse1 (= |old(~pumpRunning~0)| 0) .cse2) (or .cse1 .cse2 .cse0))) [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 885 896) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point L889-1(lines 885 896) no Hoare annotation was computed. [2018-11-23 10:00:10,625 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 885 896) the Hoare annotation is: (let ((.cse2 (= 1 ~waterLevel~0)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (= ~systemActive~0 0)) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse0 .cse1 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-23 10:00:10,625 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 1001 1008) no Hoare annotation was computed. [2018-11-23 10:00:10,626 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2018-11-23 10:00:10,626 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 1001 1008) the Hoare annotation is: true [2018-11-23 10:00:10,626 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 1001 1008) no Hoare annotation was computed. [2018-11-23 10:00:10,626 INFO L444 ceAbstractionStarter]: At program point L989(line 989) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) (not (= 0 ~pumpRunning~0)) .cse0))) [2018-11-23 10:00:10,626 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 975 999) the Hoare annotation is: true [2018-11-23 10:00:10,626 INFO L448 ceAbstractionStarter]: For program point L987(lines 987 993) no Hoare annotation was computed. [2018-11-23 10:00:10,626 INFO L444 ceAbstractionStarter]: At program point L985(line 985) the Hoare annotation is: (or (= ~systemActive~0 0) (not (= ~methaneLevelCritical~0 0))) [2018-11-23 10:00:10,626 INFO L448 ceAbstractionStarter]: For program point L985-1(line 985) no Hoare annotation was computed. [2018-11-23 10:00:10,626 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 975 999) no Hoare annotation was computed. [2018-11-23 10:00:10,626 INFO L448 ceAbstractionStarter]: For program point L983(lines 983 996) no Hoare annotation was computed. [2018-11-23 10:00:10,626 INFO L448 ceAbstractionStarter]: For program point L983-1(lines 975 999) no Hoare annotation was computed. [2018-11-23 10:00:10,626 INFO L451 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: true [2018-11-23 10:00:10,626 INFO L448 ceAbstractionStarter]: For program point L981-1(line 981) no Hoare annotation was computed. [2018-11-23 10:00:10,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:00:10 BoogieIcfgContainer [2018-11-23 10:00:10,635 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 10:00:10,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 10:00:10,636 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 10:00:10,636 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 10:00:10,636 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:59:59" (3/4) ... [2018-11-23 10:00:10,639 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 10:00:10,644 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-23 10:00:10,644 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-23 10:00:10,645 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-23 10:00:10,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 10:00:10,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-23 10:00:10,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-23 10:00:10,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-23 10:00:10,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-23 10:00:10,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-23 10:00:10,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-23 10:00:10,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-23 10:00:10,646 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-23 10:00:10,647 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-23 10:00:10,647 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-23 10:00:10,647 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-23 10:00:10,647 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-23 10:00:10,647 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-11-23 10:00:10,654 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-11-23 10:00:10,654 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-23 10:00:10,654 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 10:00:10,655 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 10:00:10,655 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 10:00:10,655 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 10:00:10,656 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 10:00:10,677 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || ((0 == methaneLevelCritical && !(systemActive == 0)) && splverifierCounter == 0)) || (((0 == pumpRunning && !(systemActive == 0)) && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 10:00:10,677 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-23 10:00:10,712 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_781b1f11-0503-4238-85f5-4984490f4809/bin-2019/utaipan/witness.graphml [2018-11-23 10:00:10,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 10:00:10,712 INFO L168 Benchmark]: Toolchain (without parser) took 11810.39 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 627.6 MB). Free memory was 956.4 MB in the beginning and 1.4 GB in the end (delta: -395.4 MB). Peak memory consumption was 232.2 MB. Max. memory is 11.5 GB. [2018-11-23 10:00:10,713 INFO L168 Benchmark]: CDTParser took 0.17 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. [2018-11-23 10:00:10,713 INFO L168 Benchmark]: CACSL2BoogieTranslator took 375.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-23 10:00:10,713 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 10:00:10,713 INFO L168 Benchmark]: Boogie Preprocessor took 31.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-23 10:00:10,713 INFO L168 Benchmark]: RCFGBuilder took 489.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. [2018-11-23 10:00:10,714 INFO L168 Benchmark]: TraceAbstraction took 10810.00 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 503.3 MB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -302.7 MB). Peak memory consumption was 793.3 MB. Max. memory is 11.5 GB. [2018-11-23 10:00:10,714 INFO L168 Benchmark]: Witness Printer took 75.96 ms. Allocated memory is still 1.7 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 399.0 kB). Peak memory consumption was 399.0 kB. Max. memory is 11.5 GB. [2018-11-23 10:00:10,715 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 375.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.3 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 489.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10810.00 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 503.3 MB). Free memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: -302.7 MB). Peak memory consumption was 793.3 MB. Max. memory is 11.5 GB. * Witness Printer took 75.96 ms. Allocated memory is still 1.7 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 399.0 kB). Peak memory consumption was 399.0 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1005]: 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: 775]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: ((((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || ((0 == methaneLevelCritical && !(systemActive == 0)) && splverifierCounter == 0)) || (((0 == pumpRunning && !(systemActive == 0)) && 1 <= methaneLevelCritical) && splverifierCounter == 0)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || \old(systemActive) == 0) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 167 locations, 1 error locations. SAFE Result, 10.7s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 2259 SDtfs, 1089 SDslu, 4701 SDs, 0 SdLazy, 1581 SolverSat, 273 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 687 GetRequests, 587 SyntacticMatches, 15 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=909occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.7s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 79 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 1799 PreInvPairs, 1897 NumberOfFragments, 1698 HoareAnnotationTreeSize, 1799 FomulaSimplifications, 2052 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 70 FomulaSimplificationsInter, 7476 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 1251 NumberOfCodeBlocks, 1251 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1522 ConstructedInterpolants, 0 QuantifiedInterpolants, 284285 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1700 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 166/174 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...