./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/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_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/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 0.1.23-5842f4b [2018-11-18 11:32:03,372 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:32:03,374 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:32:03,382 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:32:03,382 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:32:03,383 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:32:03,383 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:32:03,384 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:32:03,385 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:32:03,386 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:32:03,387 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:32:03,387 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:32:03,387 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:32:03,388 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:32:03,389 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:32:03,389 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:32:03,390 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:32:03,391 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:32:03,392 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:32:03,393 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:32:03,394 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:32:03,395 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:32:03,396 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:32:03,396 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:32:03,397 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:32:03,397 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:32:03,398 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:32:03,398 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:32:03,399 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:32:03,400 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:32:03,400 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:32:03,400 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:32:03,400 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:32:03,400 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:32:03,401 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:32:03,402 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:32:03,402 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:32:03,411 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:32:03,411 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:32:03,412 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:32:03,412 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:32:03,412 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:32:03,412 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:32:03,412 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:32:03,413 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:32:03,413 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:32:03,413 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:32:03,413 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:32:03,413 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:32:03,413 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:32:03,414 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:32:03,414 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:32:03,414 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:32:03,414 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:32:03,414 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:32:03,414 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:32:03,415 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:32:03,415 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:32:03,415 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:32:03,415 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:32:03,415 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:32:03,415 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:32:03,415 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:32:03,416 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:32:03,416 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:32:03,416 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:32:03,416 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:32:03,416 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:32:03,416 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:32:03,416 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:32:03,416 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:32:03,417 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:32:03,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:32:03,417 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:32:03,417 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_25c73a52-98ef-4fc0-9124-f3b68ca8771b/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 [2018-11-18 11:32:03,440 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:32:03,447 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:32:03,449 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:32:03,450 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:32:03,450 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:32:03,451 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-11-18 11:32:03,483 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/data/2abb298b1/6531d8d928f648c9a73680f64ee9cf05/FLAGf1885963f [2018-11-18 11:32:03,904 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:32:03,905 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/sv-benchmarks/c/product-lines/minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-11-18 11:32:03,912 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/data/2abb298b1/6531d8d928f648c9a73680f64ee9cf05/FLAGf1885963f [2018-11-18 11:32:03,920 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/data/2abb298b1/6531d8d928f648c9a73680f64ee9cf05 [2018-11-18 11:32:03,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:32:03,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:32:03,923 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:32:03,923 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:32:03,925 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:32:03,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:32:03" (1/1) ... [2018-11-18 11:32:03,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f746e5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:03, skipping insertion in model container [2018-11-18 11:32:03,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:32:03" (1/1) ... [2018-11-18 11:32:03,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:32:03,962 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:32:04,158 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:32:04,166 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:32:04,287 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:32:04,309 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:32:04,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04 WrapperNode [2018-11-18 11:32:04,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:32:04,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:32:04,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:32:04,310 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:32:04,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (1/1) ... [2018-11-18 11:32:04,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (1/1) ... [2018-11-18 11:32:04,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:32:04,339 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:32:04,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:32:04,339 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:32:04,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (1/1) ... [2018-11-18 11:32:04,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (1/1) ... [2018-11-18 11:32:04,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (1/1) ... [2018-11-18 11:32:04,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (1/1) ... [2018-11-18 11:32:04,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (1/1) ... [2018-11-18 11:32:04,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (1/1) ... [2018-11-18 11:32:04,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (1/1) ... [2018-11-18 11:32:04,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:32:04,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:32:04,372 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:32:04,372 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:32:04,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:32:04,410 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 11:32:04,411 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 11:32:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:32:04,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:32:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-11-18 11:32:04,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-11-18 11:32:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 11:32:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 11:32:04,411 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 11:32:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 11:32:04,411 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 11:32:04,411 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 11:32:04,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 11:32:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 11:32:04,412 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 11:32:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 11:32:04,412 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 11:32:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 11:32:04,412 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-11-18 11:32:04,412 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-11-18 11:32:04,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-11-18 11:32:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 11:32:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 11:32:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 11:32:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 11:32:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 11:32:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 11:32:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 11:32:04,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 11:32:04,413 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 11:32:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 11:32:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 11:32:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 11:32:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-18 11:32:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-18 11:32:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 11:32:04,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 11:32:04,414 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 11:32:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 11:32:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 11:32:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 11:32:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 11:32:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 11:32:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 11:32:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-11-18 11:32:04,415 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 11:32:04,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 11:32:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 11:32:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 11:32:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 11:32:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 11:32:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-11-18 11:32:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-11-18 11:32:04,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:32:04,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:32:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 11:32:04,417 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 11:32:04,417 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 11:32:04,418 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 11:32:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:32:04,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:32:04,418 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-11-18 11:32:04,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-11-18 11:32:04,891 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:32:04,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:32:04 BoogieIcfgContainer [2018-11-18 11:32:04,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:32:04,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:32:04,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:32:04,895 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:32:04,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:32:03" (1/3) ... [2018-11-18 11:32:04,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2811cb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:32:04, skipping insertion in model container [2018-11-18 11:32:04,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:04" (2/3) ... [2018-11-18 11:32:04,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2811cb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:32:04, skipping insertion in model container [2018-11-18 11:32:04,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:32:04" (3/3) ... [2018-11-18 11:32:04,898 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62_true-unreach-call_false-termination.cil.c [2018-11-18 11:32:04,903 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:32:04,909 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:32:04,918 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:32:04,941 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:32:04,941 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:32:04,941 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:32:04,941 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:32:04,941 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:32:04,941 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:32:04,941 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:32:04,942 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:32:04,957 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2018-11-18 11:32:04,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-11-18 11:32:04,964 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:04,964 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:32:04,967 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:04,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:04,972 INFO L82 PathProgramCache]: Analyzing trace with hash -265339350, now seen corresponding path program 1 times [2018-11-18 11:32:04,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:05,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:05,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:05,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:05,003 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:05,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:32:05,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:32:05,170 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:05,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 11:32:05,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:32:05,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:32:05,183 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2018-11-18 11:32:05,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:05,215 INFO L93 Difference]: Finished difference Result 312 states and 387 transitions. [2018-11-18 11:32:05,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:32:05,217 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-11-18 11:32:05,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:05,226 INFO L225 Difference]: With dead ends: 312 [2018-11-18 11:32:05,226 INFO L226 Difference]: Without dead ends: 156 [2018-11-18 11:32:05,229 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:32:05,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-11-18 11:32:05,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2018-11-18 11:32:05,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-11-18 11:32:05,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 185 transitions. [2018-11-18 11:32:05,268 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 185 transitions. Word has length 46 [2018-11-18 11:32:05,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:05,268 INFO L480 AbstractCegarLoop]: Abstraction has 156 states and 185 transitions. [2018-11-18 11:32:05,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 11:32:05,269 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 185 transitions. [2018-11-18 11:32:05,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-11-18 11:32:05,270 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:05,270 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:32:05,271 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:05,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:05,271 INFO L82 PathProgramCache]: Analyzing trace with hash 470724881, now seen corresponding path program 1 times [2018-11-18 11:32:05,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:05,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:05,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:05,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:05,272 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:05,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:05,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:32:05,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:32:05,343 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:05,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:32:05,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:32:05,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:32:05,346 INFO L87 Difference]: Start difference. First operand 156 states and 185 transitions. Second operand 3 states. [2018-11-18 11:32:05,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:05,367 INFO L93 Difference]: Finished difference Result 255 states and 303 transitions. [2018-11-18 11:32:05,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:32:05,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-11-18 11:32:05,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:05,370 INFO L225 Difference]: With dead ends: 255 [2018-11-18 11:32:05,370 INFO L226 Difference]: Without dead ends: 146 [2018-11-18 11:32:05,371 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:32:05,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-11-18 11:32:05,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-11-18 11:32:05,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-11-18 11:32:05,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 172 transitions. [2018-11-18 11:32:05,385 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 172 transitions. Word has length 48 [2018-11-18 11:32:05,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:05,385 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 172 transitions. [2018-11-18 11:32:05,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:32:05,385 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 172 transitions. [2018-11-18 11:32:05,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-11-18 11:32:05,387 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:05,387 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:32:05,387 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:05,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:05,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1106663847, now seen corresponding path program 1 times [2018-11-18 11:32:05,388 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:05,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:05,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:05,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:05,389 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:05,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:05,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:32:05,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:32:05,501 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:05,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:32:05,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:32:05,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:32:05,502 INFO L87 Difference]: Start difference. First operand 146 states and 172 transitions. Second operand 7 states. [2018-11-18 11:32:05,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:05,772 INFO L93 Difference]: Finished difference Result 268 states and 321 transitions. [2018-11-18 11:32:05,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:32:05,772 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2018-11-18 11:32:05,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:05,774 INFO L225 Difference]: With dead ends: 268 [2018-11-18 11:32:05,774 INFO L226 Difference]: Without dead ends: 146 [2018-11-18 11:32:05,774 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:32:05,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2018-11-18 11:32:05,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-11-18 11:32:05,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-11-18 11:32:05,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 171 transitions. [2018-11-18 11:32:05,787 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 171 transitions. Word has length 53 [2018-11-18 11:32:05,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:05,787 INFO L480 AbstractCegarLoop]: Abstraction has 146 states and 171 transitions. [2018-11-18 11:32:05,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:32:05,787 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 171 transitions. [2018-11-18 11:32:05,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-11-18 11:32:05,789 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:05,790 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:32:05,790 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:05,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:05,790 INFO L82 PathProgramCache]: Analyzing trace with hash -442397529, now seen corresponding path program 1 times [2018-11-18 11:32:05,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:05,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:05,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:05,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:05,791 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:05,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:05,885 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:32:05,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 11:32:05,885 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:05,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 11:32:05,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 11:32:05,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 11:32:05,886 INFO L87 Difference]: Start difference. First operand 146 states and 171 transitions. Second operand 5 states. [2018-11-18 11:32:06,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:06,348 INFO L93 Difference]: Finished difference Result 384 states and 464 transitions. [2018-11-18 11:32:06,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 11:32:06,348 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2018-11-18 11:32:06,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:06,351 INFO L225 Difference]: With dead ends: 384 [2018-11-18 11:32:06,351 INFO L226 Difference]: Without dead ends: 262 [2018-11-18 11:32:06,352 INFO L604 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 [2018-11-18 11:32:06,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-11-18 11:32:06,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 242. [2018-11-18 11:32:06,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-11-18 11:32:06,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 274 transitions. [2018-11-18 11:32:06,380 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 274 transitions. Word has length 71 [2018-11-18 11:32:06,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:06,381 INFO L480 AbstractCegarLoop]: Abstraction has 242 states and 274 transitions. [2018-11-18 11:32:06,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 11:32:06,381 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 274 transitions. [2018-11-18 11:32:06,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-18 11:32:06,382 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:06,383 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:32:06,383 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:06,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:06,383 INFO L82 PathProgramCache]: Analyzing trace with hash -2061553985, now seen corresponding path program 1 times [2018-11-18 11:32:06,383 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:06,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:06,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:06,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:06,386 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:06,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:32:06,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:32:06,468 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:06,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:32:06,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:32:06,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:32:06,469 INFO L87 Difference]: Start difference. First operand 242 states and 274 transitions. Second operand 6 states. [2018-11-18 11:32:06,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:06,637 INFO L93 Difference]: Finished difference Result 663 states and 772 transitions. [2018-11-18 11:32:06,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:32:06,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2018-11-18 11:32:06,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:06,640 INFO L225 Difference]: With dead ends: 663 [2018-11-18 11:32:06,640 INFO L226 Difference]: Without dead ends: 445 [2018-11-18 11:32:06,640 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 11:32:06,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2018-11-18 11:32:06,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 439. [2018-11-18 11:32:06,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2018-11-18 11:32:06,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 498 transitions. [2018-11-18 11:32:06,670 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 498 transitions. Word has length 85 [2018-11-18 11:32:06,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:06,671 INFO L480 AbstractCegarLoop]: Abstraction has 439 states and 498 transitions. [2018-11-18 11:32:06,671 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:32:06,671 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 498 transitions. [2018-11-18 11:32:06,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-18 11:32:06,672 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:06,672 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:32:06,672 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:06,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:06,673 INFO L82 PathProgramCache]: Analyzing trace with hash 495627675, now seen corresponding path program 1 times [2018-11-18 11:32:06,673 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:06,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:06,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:06,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:06,674 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:06,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:06,760 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:32:06,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 11:32:06,761 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:06,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 11:32:06,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 11:32:06,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:32:06,762 INFO L87 Difference]: Start difference. First operand 439 states and 498 transitions. Second operand 7 states. [2018-11-18 11:32:07,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:07,141 INFO L93 Difference]: Finished difference Result 476 states and 554 transitions. [2018-11-18 11:32:07,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 11:32:07,141 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 89 [2018-11-18 11:32:07,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:07,143 INFO L225 Difference]: With dead ends: 476 [2018-11-18 11:32:07,143 INFO L226 Difference]: Without dead ends: 473 [2018-11-18 11:32:07,144 INFO L604 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 [2018-11-18 11:32:07,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2018-11-18 11:32:07,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 439. [2018-11-18 11:32:07,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2018-11-18 11:32:07,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 497 transitions. [2018-11-18 11:32:07,170 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 497 transitions. Word has length 89 [2018-11-18 11:32:07,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:07,170 INFO L480 AbstractCegarLoop]: Abstraction has 439 states and 497 transitions. [2018-11-18 11:32:07,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 11:32:07,170 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 497 transitions. [2018-11-18 11:32:07,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-18 11:32:07,172 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:07,172 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:32:07,172 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:07,172 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:07,172 INFO L82 PathProgramCache]: Analyzing trace with hash 959038742, now seen corresponding path program 1 times [2018-11-18 11:32:07,172 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:07,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:07,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:07,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:07,173 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:07,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 11:32:07,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:32:07,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 11:32:07,231 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:07,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 11:32:07,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 11:32:07,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 11:32:07,232 INFO L87 Difference]: Start difference. First operand 439 states and 497 transitions. Second operand 6 states. [2018-11-18 11:32:07,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:07,269 INFO L93 Difference]: Finished difference Result 868 states and 1006 transitions. [2018-11-18 11:32:07,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 11:32:07,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 105 [2018-11-18 11:32:07,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:07,272 INFO L225 Difference]: With dead ends: 868 [2018-11-18 11:32:07,272 INFO L226 Difference]: Without dead ends: 453 [2018-11-18 11:32:07,273 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-18 11:32:07,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2018-11-18 11:32:07,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 449. [2018-11-18 11:32:07,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 449 states. [2018-11-18 11:32:07,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 507 transitions. [2018-11-18 11:32:07,294 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 507 transitions. Word has length 105 [2018-11-18 11:32:07,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:07,295 INFO L480 AbstractCegarLoop]: Abstraction has 449 states and 507 transitions. [2018-11-18 11:32:07,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 11:32:07,295 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 507 transitions. [2018-11-18 11:32:07,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-18 11:32:07,296 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:07,296 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:32:07,296 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:07,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:07,297 INFO L82 PathProgramCache]: Analyzing trace with hash 605950360, now seen corresponding path program 1 times [2018-11-18 11:32:07,297 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:07,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:07,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:07,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:07,298 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 11:32:07,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:32:07,389 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 11:32:07,389 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:07,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 11:32:07,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 11:32:07,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:32:07,390 INFO L87 Difference]: Start difference. First operand 449 states and 507 transitions. Second operand 8 states. [2018-11-18 11:32:07,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:07,432 INFO L93 Difference]: Finished difference Result 888 states and 1028 transitions. [2018-11-18 11:32:07,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:32:07,433 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 105 [2018-11-18 11:32:07,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:07,435 INFO L225 Difference]: With dead ends: 888 [2018-11-18 11:32:07,436 INFO L226 Difference]: Without dead ends: 463 [2018-11-18 11:32:07,437 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-18 11:32:07,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2018-11-18 11:32:07,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 457. [2018-11-18 11:32:07,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2018-11-18 11:32:07,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 515 transitions. [2018-11-18 11:32:07,459 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 515 transitions. Word has length 105 [2018-11-18 11:32:07,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:07,460 INFO L480 AbstractCegarLoop]: Abstraction has 457 states and 515 transitions. [2018-11-18 11:32:07,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 11:32:07,460 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 515 transitions. [2018-11-18 11:32:07,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-11-18 11:32:07,462 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:07,462 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:32:07,462 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:07,462 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:07,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1739140953, now seen corresponding path program 1 times [2018-11-18 11:32:07,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:07,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:07,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:07,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:07,463 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:07,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:07,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 11:32:07,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:32:07,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 11:32:07,531 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:07,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 11:32:07,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 11:32:07,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:32:07,531 INFO L87 Difference]: Start difference. First operand 457 states and 515 transitions. Second operand 4 states. [2018-11-18 11:32:07,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:07,773 INFO L93 Difference]: Finished difference Result 1367 states and 1616 transitions. [2018-11-18 11:32:07,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 11:32:07,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2018-11-18 11:32:07,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:07,777 INFO L225 Difference]: With dead ends: 1367 [2018-11-18 11:32:07,777 INFO L226 Difference]: Without dead ends: 934 [2018-11-18 11:32:07,779 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 11:32:07,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2018-11-18 11:32:07,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 919. [2018-11-18 11:32:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2018-11-18 11:32:07,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1065 transitions. [2018-11-18 11:32:07,823 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1065 transitions. Word has length 105 [2018-11-18 11:32:07,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:07,823 INFO L480 AbstractCegarLoop]: Abstraction has 919 states and 1065 transitions. [2018-11-18 11:32:07,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 11:32:07,823 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1065 transitions. [2018-11-18 11:32:07,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-11-18 11:32:07,825 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:07,825 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:32:07,825 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:07,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:07,826 INFO L82 PathProgramCache]: Analyzing trace with hash -1235977101, now seen corresponding path program 1 times [2018-11-18 11:32:07,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:07,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:07,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:07,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:07,827 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:07,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:32:07,955 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:32:07,955 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:32:07,956 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2018-11-18 11:32:07,957 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], [89], [95], [99], [103], [106], [111], [114], [119], [125], [128], [138], [139], [142], [143], [144], [146], [151], [154], [155], [157], [162], [164], [165], [170], [172], [200], [201], [207], [211], [225], [231], [234], [236], [239], [249], [252], [256], [257], [260], [262], [265], [267], [270], [279], [280], [281], [282], [283], [284], [285], [286], [287], [295], [296], [299], [301], [302], [309], [310], [311], [312], [313], [314], [317], [321], [322], [323], [324], [325], [326], [333], [334], [335], [337], [338], [339], [341], [342], [343], [344], [349], [350], [351], [352], [353] [2018-11-18 11:32:07,988 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:32:07,988 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:32:08,499 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:32:08,500 INFO L272 AbstractInterpreter]: Visited 107 different actions 109 times. Never merged. Never widened. Performed 3290 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3290 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 11:32:08,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:08,529 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:32:08,529 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:32:08,529 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:32:08,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:08,539 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:32:08,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:08,644 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:08,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:08,844 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:32:09,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 11:32:09,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:32:09,635 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-18 11:32:09,635 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:09,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 11:32:09,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 11:32:09,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 11:32:09,636 INFO L87 Difference]: Start difference. First operand 919 states and 1065 transitions. Second operand 8 states. [2018-11-18 11:32:09,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:09,883 INFO L93 Difference]: Finished difference Result 1784 states and 2079 transitions. [2018-11-18 11:32:09,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:32:09,884 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 109 [2018-11-18 11:32:09,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:09,888 INFO L225 Difference]: With dead ends: 1784 [2018-11-18 11:32:09,889 INFO L226 Difference]: Without dead ends: 889 [2018-11-18 11:32:09,891 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 200 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 11:32:09,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 889 states. [2018-11-18 11:32:09,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 889 to 889. [2018-11-18 11:32:09,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 889 states. [2018-11-18 11:32:09,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1016 transitions. [2018-11-18 11:32:09,940 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1016 transitions. Word has length 109 [2018-11-18 11:32:09,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:09,940 INFO L480 AbstractCegarLoop]: Abstraction has 889 states and 1016 transitions. [2018-11-18 11:32:09,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 11:32:09,941 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1016 transitions. [2018-11-18 11:32:09,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2018-11-18 11:32:09,944 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:32:09,945 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 11:32:09,945 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:32:09,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:09,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1067263677, now seen corresponding path program 1 times [2018-11-18 11:32:09,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:32:09,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:09,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:09,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:09,946 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:32:09,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:10,131 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-18 11:32:10,133 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:32:10,133 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 11:32:10,134 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 181 with the following transitions: [2018-11-18 11:32:10,135 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], [89], [95], [99], [103], [106], [109], [111], [114], [117], [119], [125], [128], [138], [139], [140], [141], [142], [143], [144], [146], [151], [154], [155], [157], [162], [164], [165], [170], [172], [200], [201], [204], [207], [211], [217], [220], [224], [225], [231], [234], [236], [239], [246], [249], [252], [256], [257], [260], [262], [265], [267], [270], [276], [278], [279], [280], [281], [282], [283], [284], [285], [286], [287], [289], [290], [293], [294], [295], [296], [297], [298], [299], [301], [302], [303], [304], [307], [308], [309], [310], [311], [312], [313], [314], [317], [318], [321], [322], [323], [324], [325], [326], [331], [332], [333], [334], [335], [336], [337], [338], [339], [341], [342], [343], [344], [347], [348], [349], [350], [351], [352], [353] [2018-11-18 11:32:10,138 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 11:32:10,138 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 11:32:12,101 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 11:32:12,101 INFO L272 AbstractInterpreter]: Visited 146 different actions 1062 times. Merged at 19 different actions 80 times. Never widened. Performed 42552 root evaluator evaluations with a maximum evaluation depth of 5. Performed 42552 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 19 fixpoints after 5 different actions. Largest state had 133 variables. [2018-11-18 11:32:12,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:12,115 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 11:32:12,115 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:32:12,115 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:32:12,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:12,122 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 11:32:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:12,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:12,311 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-11-18 11:32:12,311 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 11:32:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-18 11:32:12,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:32:12,638 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-11-18 11:32:12,638 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 11:32:12,638 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 11:32:12,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 11:32:12,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 11:32:12,639 INFO L87 Difference]: Start difference. First operand 889 states and 1016 transitions. Second operand 8 states. [2018-11-18 11:32:12,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:32:12,859 INFO L93 Difference]: Finished difference Result 1491 states and 1728 transitions. [2018-11-18 11:32:12,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 11:32:12,859 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 180 [2018-11-18 11:32:12,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:32:12,860 INFO L225 Difference]: With dead ends: 1491 [2018-11-18 11:32:12,860 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:32:12,864 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 345 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-11-18 11:32:12,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:32:12,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:32:12,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:32:12,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:32:12,865 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 180 [2018-11-18 11:32:12,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:32:12,865 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:32:12,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 11:32:12,865 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:32:12,865 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:32:12,869 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:32:12,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:32:13,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:32:13,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:32:13,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:32:13,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:32:13,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:32:13,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-18 11:32:13,608 WARN L180 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2018-11-18 11:32:14,806 WARN L180 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2018-11-18 11:32:15,303 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 391 397) the Hoare annotation is: true [2018-11-18 11:32:15,303 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 391 397) no Hoare annotation was computed. [2018-11-18 11:32:15,303 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 398 406) no Hoare annotation was computed. [2018-11-18 11:32:15,303 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 398 406) the Hoare annotation is: true [2018-11-18 11:32:15,303 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 398 406) no Hoare annotation was computed. [2018-11-18 11:32:15,303 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 846 868) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:32:15,303 INFO L421 ceAbstractionStarter]: At program point L858(line 858) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= main_~tmp~10 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:32:15,303 INFO L421 ceAbstractionStarter]: At program point L858-1(line 858) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= main_~tmp~10 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:32:15,303 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 846 868) no Hoare annotation was computed. [2018-11-18 11:32:15,303 INFO L425 ceAbstractionStarter]: For program point L856(lines 856 863) no Hoare annotation was computed. [2018-11-18 11:32:15,304 INFO L425 ceAbstractionStarter]: For program point L856-1(lines 856 863) no Hoare annotation was computed. [2018-11-18 11:32:15,304 INFO L425 ceAbstractionStarter]: For program point L854(line 854) no Hoare annotation was computed. [2018-11-18 11:32:15,304 INFO L421 ceAbstractionStarter]: At program point L853(line 853) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:32:15,305 INFO L421 ceAbstractionStarter]: At program point L852(line 852) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:32:15,306 INFO L421 ceAbstractionStarter]: At program point L852-1(line 852) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:32:15,306 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 846 868) no Hoare annotation was computed. [2018-11-18 11:32:15,306 INFO L421 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-11-18 11:32:15,306 INFO L421 ceAbstractionStarter]: At program point L123(line 123) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-11-18 11:32:15,306 INFO L425 ceAbstractionStarter]: For program point L121(lines 121 129) no Hoare annotation was computed. [2018-11-18 11:32:15,306 INFO L421 ceAbstractionStarter]: At program point L119(line 119) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-11-18 11:32:15,306 INFO L425 ceAbstractionStarter]: For program point L119-1(line 119) no Hoare annotation was computed. [2018-11-18 11:32:15,306 INFO L425 ceAbstractionStarter]: For program point L117(lines 117 134) no Hoare annotation was computed. [2018-11-18 11:32:15,306 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 113 137) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse0))) [2018-11-18 11:32:15,306 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 113 137) no Hoare annotation was computed. [2018-11-18 11:32:15,306 INFO L421 ceAbstractionStarter]: At program point L132(line 132) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or (= |old(~pumpRunning~0)| 0) .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 11:32:15,307 INFO L425 ceAbstractionStarter]: For program point L132-1(lines 113 137) no Hoare annotation was computed. [2018-11-18 11:32:15,307 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 208 216) no Hoare annotation was computed. [2018-11-18 11:32:15,307 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 208 216) the Hoare annotation is: true [2018-11-18 11:32:15,307 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 208 216) no Hoare annotation was computed. [2018-11-18 11:32:15,307 INFO L428 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 272 290) the Hoare annotation is: true [2018-11-18 11:32:15,307 INFO L425 ceAbstractionStarter]: For program point L281(lines 281 285) no Hoare annotation was computed. [2018-11-18 11:32:15,307 INFO L428 ceAbstractionStarter]: At program point L279(line 279) the Hoare annotation is: true [2018-11-18 11:32:15,307 INFO L425 ceAbstractionStarter]: For program point L281-2(lines 281 285) no Hoare annotation was computed. [2018-11-18 11:32:15,307 INFO L425 ceAbstractionStarter]: For program point L279-1(line 279) no Hoare annotation was computed. [2018-11-18 11:32:15,307 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 272 290) no Hoare annotation was computed. [2018-11-18 11:32:15,307 INFO L425 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 272 290) no Hoare annotation was computed. [2018-11-18 11:32:15,307 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 384 390) no Hoare annotation was computed. [2018-11-18 11:32:15,307 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 384 390) the Hoare annotation is: true [2018-11-18 11:32:15,307 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 836 845) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:32:15,307 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 836 845) no Hoare annotation was computed. [2018-11-18 11:32:15,308 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 836 845) no Hoare annotation was computed. [2018-11-18 11:32:15,308 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 197 207) the Hoare annotation is: true [2018-11-18 11:32:15,308 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 197 207) no Hoare annotation was computed. [2018-11-18 11:32:15,308 INFO L428 ceAbstractionStarter]: At program point L202(line 202) the Hoare annotation is: true [2018-11-18 11:32:15,308 INFO L425 ceAbstractionStarter]: For program point L202-1(line 202) no Hoare annotation was computed. [2018-11-18 11:32:15,308 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 197 207) no Hoare annotation was computed. [2018-11-18 11:32:15,308 INFO L421 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 189 196) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-11-18 11:32:15,308 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 189 196) no Hoare annotation was computed. [2018-11-18 11:32:15,308 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 189 196) no Hoare annotation was computed. [2018-11-18 11:32:15,308 INFO L425 ceAbstractionStarter]: For program point L954(lines 954 960) no Hoare annotation was computed. [2018-11-18 11:32:15,308 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 950 963) no Hoare annotation was computed. [2018-11-18 11:32:15,308 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 950 963) the Hoare annotation is: true [2018-11-18 11:32:15,308 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 950 963) no Hoare annotation was computed. [2018-11-18 11:32:15,308 INFO L421 ceAbstractionStarter]: At program point L158(line 158) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse1) (or .cse4 .cse1 .cse2) (or .cse3 .cse0 .cse1))) [2018-11-18 11:32:15,309 INFO L425 ceAbstractionStarter]: For program point L158-1(lines 139 163) no Hoare annotation was computed. [2018-11-18 11:32:15,309 INFO L421 ceAbstractionStarter]: At program point L153(line 153) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) .cse0))) [2018-11-18 11:32:15,309 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 139 163) no Hoare annotation was computed. [2018-11-18 11:32:15,309 INFO L421 ceAbstractionStarter]: At program point L149(line 149) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2) .cse2) .cse0) (or .cse3 .cse4 .cse0) (or .cse4 .cse0 .cse1))) [2018-11-18 11:32:15,309 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 139 163) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (< ~methaneLevelCritical~0 1) .cse1 .cse0))) [2018-11-18 11:32:15,309 INFO L425 ceAbstractionStarter]: For program point L147(lines 147 155) no Hoare annotation was computed. [2018-11-18 11:32:15,309 INFO L421 ceAbstractionStarter]: At program point L145(line 145) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0) (or .cse4 .cse0 .cse1) (or .cse3 .cse0 .cse2))) [2018-11-18 11:32:15,309 INFO L425 ceAbstractionStarter]: For program point L145-1(line 145) no Hoare annotation was computed. [2018-11-18 11:32:15,309 INFO L425 ceAbstractionStarter]: For program point L143(lines 143 160) no Hoare annotation was computed. [2018-11-18 11:32:15,309 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 79 85) no Hoare annotation was computed. [2018-11-18 11:32:15,309 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 79 85) the Hoare annotation is: true [2018-11-18 11:32:15,309 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 303 368) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:32:15,310 INFO L425 ceAbstractionStarter]: For program point L351(lines 351 355) no Hoare annotation was computed. [2018-11-18 11:32:15,310 INFO L421 ceAbstractionStarter]: At program point L351-2(lines 343 356) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-18 11:32:15,310 INFO L425 ceAbstractionStarter]: For program point L314(lines 313 360) no Hoare annotation was computed. [2018-11-18 11:32:15,310 INFO L421 ceAbstractionStarter]: At program point L345(line 345) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-18 11:32:15,310 INFO L425 ceAbstractionStarter]: For program point L343(lines 343 356) no Hoare annotation was computed. [2018-11-18 11:32:15,310 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 303 368) no Hoare annotation was computed. [2018-11-18 11:32:15,310 INFO L421 ceAbstractionStarter]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-18 11:32:15,310 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 339) no Hoare annotation was computed. [2018-11-18 11:32:15,310 INFO L425 ceAbstractionStarter]: For program point L333-1(lines 333 339) no Hoare annotation was computed. [2018-11-18 11:32:15,310 INFO L421 ceAbstractionStarter]: At program point L358(lines 313 360) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-18 11:32:15,310 INFO L421 ceAbstractionStarter]: At program point L325(line 325) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1))) [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point L323(lines 323 329) no Hoare annotation was computed. [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point L323-1(lines 323 329) no Hoare annotation was computed. [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point L315(lines 315 319) no Hoare annotation was computed. [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point L313-1(lines 313 360) no Hoare annotation was computed. [2018-11-18 11:32:15,311 INFO L421 ceAbstractionStarter]: At program point L361(lines 312 362) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 303 368) no Hoare annotation was computed. [2018-11-18 11:32:15,311 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 164 171) the Hoare annotation is: (or (= ~waterLevel~0 1) (not (= 0 |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| ~pumpRunning~0) (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 164 171) no Hoare annotation was computed. [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 164 171) no Hoare annotation was computed. [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 964 972) no Hoare annotation was computed. [2018-11-18 11:32:15,311 INFO L428 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 964 972) the Hoare annotation is: true [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 964 972) no Hoare annotation was computed. [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:32:15,311 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~pumpRunning~0)| ~pumpRunning~0) [2018-11-18 11:32:15,311 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:32:15,312 INFO L421 ceAbstractionStarter]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 11:32:15,312 INFO L425 ceAbstractionStarter]: For program point L177-1(line 177) no Hoare annotation was computed. [2018-11-18 11:32:15,312 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 172 188) no Hoare annotation was computed. [2018-11-18 11:32:15,312 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 172 188) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 11:32:15,312 INFO L421 ceAbstractionStarter]: At program point L183(line 183) the Hoare annotation is: (let ((.cse0 (= ~waterLevel~0 1)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse2 (not (= ~methaneLevelCritical~0 0))) (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2))) [2018-11-18 11:32:15,312 INFO L425 ceAbstractionStarter]: For program point L183-1(lines 172 188) no Hoare annotation was computed. [2018-11-18 11:32:15,312 INFO L425 ceAbstractionStarter]: For program point L179(lines 179 185) no Hoare annotation was computed. [2018-11-18 11:32:15,312 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 253 271) no Hoare annotation was computed. [2018-11-18 11:32:15,312 INFO L425 ceAbstractionStarter]: For program point L262(lines 262 266) no Hoare annotation was computed. [2018-11-18 11:32:15,312 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 253 271) the Hoare annotation is: true [2018-11-18 11:32:15,312 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 253 271) no Hoare annotation was computed. [2018-11-18 11:32:15,312 INFO L428 ceAbstractionStarter]: At program point L260(line 260) the Hoare annotation is: true [2018-11-18 11:32:15,312 INFO L425 ceAbstractionStarter]: For program point L262-2(lines 262 266) no Hoare annotation was computed. [2018-11-18 11:32:15,313 INFO L425 ceAbstractionStarter]: For program point L260-1(line 260) no Hoare annotation was computed. [2018-11-18 11:32:15,313 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 897 908) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< |old(~methaneLevelCritical~0)| 1) (not (= 0 ~pumpRunning~0)) (<= 1 ~methaneLevelCritical~0) .cse0) (or (= 0 ~methaneLevelCritical~0) .cse0 (not (= |old(~methaneLevelCritical~0)| 0))))) [2018-11-18 11:32:15,313 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 897 908) no Hoare annotation was computed. [2018-11-18 11:32:15,313 INFO L425 ceAbstractionStarter]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2018-11-18 11:32:15,313 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 775 804) no Hoare annotation was computed. [2018-11-18 11:32:15,313 INFO L425 ceAbstractionStarter]: For program point L789(lines 789 793) no Hoare annotation was computed. [2018-11-18 11:32:15,313 INFO L428 ceAbstractionStarter]: At program point L789-1(lines 789 793) the Hoare annotation is: true [2018-11-18 11:32:15,313 INFO L425 ceAbstractionStarter]: For program point L785-1(lines 785 799) no Hoare annotation was computed. [2018-11-18 11:32:15,313 INFO L428 ceAbstractionStarter]: At program point L785-3(lines 785 799) the Hoare annotation is: true [2018-11-18 11:32:15,313 INFO L428 ceAbstractionStarter]: At program point L781(line 781) the Hoare annotation is: true [2018-11-18 11:32:15,313 INFO L425 ceAbstractionStarter]: For program point L781-1(line 781) no Hoare annotation was computed. [2018-11-18 11:32:15,313 INFO L428 ceAbstractionStarter]: At program point L800(lines 775 804) the Hoare annotation is: true [2018-11-18 11:32:15,313 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 775 804) the Hoare annotation is: true [2018-11-18 11:32:15,313 INFO L425 ceAbstractionStarter]: For program point L796(line 796) no Hoare annotation was computed. [2018-11-18 11:32:15,313 INFO L425 ceAbstractionStarter]: For program point L786(line 786) no Hoare annotation was computed. [2018-11-18 11:32:15,314 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 909 917) the Hoare annotation is: true [2018-11-18 11:32:15,314 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 909 917) no Hoare annotation was computed. [2018-11-18 11:32:15,314 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 909 917) no Hoare annotation was computed. [2018-11-18 11:32:15,314 INFO L421 ceAbstractionStarter]: At program point L61(line 61) the Hoare annotation is: (let ((.cse2 (< ~methaneLevelCritical~0 1)) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (not (= |old(~pumpRunning~0)| 0)) .cse1)) (or .cse2 (not (= 0 |old(~pumpRunning~0)|)) .cse0) (or .cse2 .cse0 .cse1))) [2018-11-18 11:32:15,314 INFO L425 ceAbstractionStarter]: For program point L59(lines 58 77) no Hoare annotation was computed. [2018-11-18 11:32:15,314 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 55 78) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| 1))) (let ((.cse7 (= 1 ~waterLevel~0)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not .cse1)) (.cse5 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~waterLevel~0 1))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse2 .cse5) (or .cse0 .cse6 .cse7 .cse2 .cse8) (or .cse7 .cse6 .cse2 .cse8 .cse5) (or .cse1 .cse2 .cse5 .cse3) (or .cse0 .cse4 .cse2)))) [2018-11-18 11:32:15,314 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 55 78) no Hoare annotation was computed. [2018-11-18 11:32:15,314 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 55 78) no Hoare annotation was computed. [2018-11-18 11:32:15,314 INFO L421 ceAbstractionStarter]: At program point L68(line 68) the Hoare annotation is: (let ((.cse7 (= |old(~waterLevel~0)| 1))) (let ((.cse5 (= 1 ~waterLevel~0)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse6 (not .cse7)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse3 (< ~methaneLevelCritical~0 1)) (.cse8 (not (= ~waterLevel~0 1))) (.cse1 (not (= ~systemActive~0 1))) (.cse9 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5 .cse1 .cse6) (or .cse5 .cse4 .cse1 .cse6 .cse2) (or .cse7 .cse8 .cse1 .cse2 .cse9) (or .cse3 .cse0 .cse1) (or .cse3 .cse7 .cse8 .cse1 .cse9)))) [2018-11-18 11:32:15,314 INFO L421 ceAbstractionStarter]: At program point L66(lines 66 72) the Hoare annotation is: (let ((.cse5 (= |old(~waterLevel~0)| 1))) (let ((.cse2 (= 1 ~waterLevel~0)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse4 (not .cse5)) (.cse6 (not (= ~waterLevel~0 1))) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse8 (= 0 ~pumpRunning~0)) (.cse3 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse6 .cse3) (or .cse2 .cse1 .cse3 .cse4 .cse7) (or .cse5 .cse6 .cse3 .cse7 (not (= |old(~pumpRunning~0)| 0))) (or (= |old(~pumpRunning~0)| ~pumpRunning~0) .cse6 .cse8 .cse3 .cse7) (or .cse0 .cse8 .cse3)))) [2018-11-18 11:32:15,315 INFO L428 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 873 884) the Hoare annotation is: true [2018-11-18 11:32:15,315 INFO L425 ceAbstractionStarter]: For program point L877-1(lines 873 884) no Hoare annotation was computed. [2018-11-18 11:32:15,315 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 873 884) no Hoare annotation was computed. [2018-11-18 11:32:15,315 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 829 835) no Hoare annotation was computed. [2018-11-18 11:32:15,315 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 829 835) the Hoare annotation is: true [2018-11-18 11:32:15,315 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:32:15,315 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1)) [2018-11-18 11:32:15,315 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:32:15,315 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:32:15,315 INFO L425 ceAbstractionStarter]: For program point startSystemEXIT(lines 291 298) no Hoare annotation was computed. [2018-11-18 11:32:15,315 INFO L421 ceAbstractionStarter]: At program point startSystemENTRY(lines 291 298) the Hoare annotation is: (let ((.cse0 (= ~systemActive~0 1)) (.cse1 (not (= |old(~systemActive~0)| 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 11:32:15,315 INFO L425 ceAbstractionStarter]: For program point startSystemFINAL(lines 291 298) no Hoare annotation was computed. [2018-11-18 11:32:15,316 INFO L421 ceAbstractionStarter]: At program point L97(line 97) the Hoare annotation is: (let ((.cse0 (and (not (= ~waterLevel~0 1)) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| 0) .cse1 .cse2) (or .cse0 .cse1 .cse2))) [2018-11-18 11:32:15,316 INFO L421 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 87 111) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse1 .cse0))) [2018-11-18 11:32:15,316 INFO L425 ceAbstractionStarter]: For program point L95(lines 95 103) no Hoare annotation was computed. [2018-11-18 11:32:15,316 INFO L421 ceAbstractionStarter]: At program point L93(line 93) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse0 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or (= |old(~pumpRunning~0)| 0) .cse1 .cse2) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1))) [2018-11-18 11:32:15,316 INFO L425 ceAbstractionStarter]: For program point L93-1(line 93) no Hoare annotation was computed. [2018-11-18 11:32:15,316 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 87 111) no Hoare annotation was computed. [2018-11-18 11:32:15,316 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 108) no Hoare annotation was computed. [2018-11-18 11:32:15,316 INFO L421 ceAbstractionStarter]: At program point L106(line 106) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse1 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (or (< ~methaneLevelCritical~0 1) .cse2 .cse0) (or .cse2 .cse0 .cse1))) [2018-11-18 11:32:15,316 INFO L425 ceAbstractionStarter]: For program point L106-1(lines 87 111) no Hoare annotation was computed. [2018-11-18 11:32:15,316 INFO L421 ceAbstractionStarter]: At program point L101(line 101) the Hoare annotation is: (let ((.cse1 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse0 .cse1) (or (= |old(~pumpRunning~0)| 0) .cse0 .cse2) (or .cse1 .cse0 .cse2))) [2018-11-18 11:32:15,316 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 885 896) no Hoare annotation was computed. [2018-11-18 11:32:15,316 INFO L425 ceAbstractionStarter]: For program point L889-1(lines 885 896) no Hoare annotation was computed. [2018-11-18 11:32:15,317 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 885 896) the Hoare annotation is: (let ((.cse1 (= 1 ~waterLevel~0)) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or (< ~methaneLevelCritical~0 1) .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse0 .cse2 .cse3 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 11:32:15,317 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 1001 1008) no Hoare annotation was computed. [2018-11-18 11:32:15,317 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 1001 1008) the Hoare annotation is: true [2018-11-18 11:32:15,317 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 1001 1008) no Hoare annotation was computed. [2018-11-18 11:32:15,317 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2018-11-18 11:32:15,317 INFO L421 ceAbstractionStarter]: At program point L989(line 989) the Hoare annotation is: (let ((.cse0 (not (= ~systemActive~0 1)))) (and (or (< ~methaneLevelCritical~0 1) (not (= 0 ~pumpRunning~0)) .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 11:32:15,317 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 975 999) the Hoare annotation is: true [2018-11-18 11:32:15,317 INFO L425 ceAbstractionStarter]: For program point L987(lines 987 993) no Hoare annotation was computed. [2018-11-18 11:32:15,317 INFO L421 ceAbstractionStarter]: At program point L985(line 985) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-11-18 11:32:15,317 INFO L425 ceAbstractionStarter]: For program point L985-1(line 985) no Hoare annotation was computed. [2018-11-18 11:32:15,317 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 975 999) no Hoare annotation was computed. [2018-11-18 11:32:15,317 INFO L425 ceAbstractionStarter]: For program point L983(lines 983 996) no Hoare annotation was computed. [2018-11-18 11:32:15,317 INFO L425 ceAbstractionStarter]: For program point L983-1(lines 975 999) no Hoare annotation was computed. [2018-11-18 11:32:15,318 INFO L428 ceAbstractionStarter]: At program point L981(line 981) the Hoare annotation is: true [2018-11-18 11:32:15,318 INFO L425 ceAbstractionStarter]: For program point L981-1(line 981) no Hoare annotation was computed. [2018-11-18 11:32:15,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:32:15 BoogieIcfgContainer [2018-11-18 11:32:15,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:32:15,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:32:15,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:32:15,331 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:32:15,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:32:04" (3/4) ... [2018-11-18 11:32:15,334 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-11-18 11:32:15,339 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 11:32:15,340 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 11:32:15,341 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-18 11:32:15,341 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-11-18 11:32:15,341 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 11:32:15,341 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 11:32:15,341 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-11-18 11:32:15,348 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2018-11-18 11:32:15,348 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 11:32:15,348 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 11:32:15,368 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0 == pumpRunning && 1 <= methaneLevelCritical) && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((0 == methaneLevelCritical && systemActive == 1) && splverifierCounter == 0) [2018-11-18 11:32:15,368 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 11:32:15,401 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_25c73a52-98ef-4fc0-9124-f3b68ca8771b/bin-2019/utaipan/witness.graphml [2018-11-18 11:32:15,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:32:15,402 INFO L168 Benchmark]: Toolchain (without parser) took 11479.78 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 609.7 MB). Free memory was 956.4 MB in the beginning and 988.5 MB in the end (delta: -32.1 MB). Peak memory consumption was 577.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:32:15,402 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:32:15,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:32:15,403 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.17 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. [2018-11-18 11:32:15,403 INFO L168 Benchmark]: Boogie Preprocessor took 32.55 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:32:15,403 INFO L168 Benchmark]: RCFGBuilder took 520.04 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: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 11.5 GB. [2018-11-18 11:32:15,403 INFO L168 Benchmark]: TraceAbstraction took 10437.54 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 455.6 MB). Free memory was 1.1 GB in the beginning and 988.5 MB in the end (delta: 77.7 MB). Peak memory consumption was 548.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:32:15,404 INFO L168 Benchmark]: Witness Printer took 71.06 ms. Allocated memory is still 1.6 GB. Free memory is still 988.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:32:15,405 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 386.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 32.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.17 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 32.55 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 520.04 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: 71.0 MB). Peak memory consumption was 71.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10437.54 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 455.6 MB). Free memory was 1.1 GB in the beginning and 988.5 MB in the end (delta: 77.7 MB). Peak memory consumption was 548.3 MB. Max. memory is 11.5 GB. * Witness Printer took 71.06 ms. Allocated memory is still 1.6 GB. Free memory is still 988.5 MB. There was no memory consumed. 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 == pumpRunning && 1 <= methaneLevelCritical) && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((0 == methaneLevelCritical && systemActive == 1) && splverifierCounter == 0) - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 169 locations, 1 error locations. SAFE Result, 10.3s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 2.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 2271 SDtfs, 1112 SDslu, 4643 SDs, 0 SdLazy, 1714 SolverSat, 282 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 700 GetRequests, 593 SyntacticMatches, 15 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=919occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 11 MinimizatonAttempts, 85 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 1883 PreInvPairs, 1981 NumberOfFragments, 1757 HoareAnnotationTreeSize, 1883 FomulaSimplifications, 2379 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 70 FomulaSimplificationsInter, 6891 FormulaSimplificationTreeSizeReductionInter, 2.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1285 NumberOfCodeBlocks, 1285 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1559 ConstructedInterpolants, 0 QuantifiedInterpolants, 294225 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1534 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 172/180 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...