./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/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 bf50661cace84e24af5f399094bd98fed0ff7444 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 17:07:34,820 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:07:34,821 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:07:34,827 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:07:34,828 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:07:34,828 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:07:34,829 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:07:34,830 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:07:34,830 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:07:34,831 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:07:34,831 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:07:34,831 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:07:34,832 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:07:34,832 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:07:34,833 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:07:34,833 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:07:34,834 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:07:34,834 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:07:34,835 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:07:34,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:07:34,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:07:34,837 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:07:34,838 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:07:34,838 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:07:34,839 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:07:34,839 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:07:34,840 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:07:34,840 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:07:34,840 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:07:34,841 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:07:34,841 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:07:34,841 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:07:34,842 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:07:34,842 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:07:34,842 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:07:34,842 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:07:34,843 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 17:07:34,850 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:07:34,850 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:07:34,850 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:07:34,850 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:07:34,851 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 17:07:34,851 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 17:07:34,851 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 17:07:34,851 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 17:07:34,851 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 17:07:34,851 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 17:07:34,851 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 17:07:34,851 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 17:07:34,851 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 17:07:34,852 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:07:34,852 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:07:34,852 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:07:34,853 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:07:34,853 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:07:34,853 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:07:34,853 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:07:34,853 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:07:34,853 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:07:34,853 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 17:07:34,853 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:07:34,853 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 17:07:34,853 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 17:07:34,853 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_b2b5b063-a632-40d2-a1b8-ac35893ca58e/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 -> bf50661cace84e24af5f399094bd98fed0ff7444 [2018-12-08 17:07:34,870 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:07:34,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:07:34,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:07:34,880 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:07:34,880 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:07:34,880 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c [2018-12-08 17:07:34,913 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/data/bdd756956/74173ae749be450b8e581e8d42b186de/FLAG13cf387ab [2018-12-08 17:07:35,317 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:07:35,318 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/sv-benchmarks/c/product-lines/minepump_spec1_product61_true-unreach-call_false-termination.cil.c [2018-12-08 17:07:35,324 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/data/bdd756956/74173ae749be450b8e581e8d42b186de/FLAG13cf387ab [2018-12-08 17:07:35,332 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/data/bdd756956/74173ae749be450b8e581e8d42b186de [2018-12-08 17:07:35,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:07:35,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:07:35,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:07:35,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:07:35,337 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:07:35,338 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d622ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35, skipping insertion in model container [2018-12-08 17:07:35,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:07:35,371 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:07:35,542 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:07:35,587 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:07:35,633 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:07:35,655 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:07:35,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35 WrapperNode [2018-12-08 17:07:35,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:07:35,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:07:35,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:07:35,656 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:07:35,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:07:35,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:07:35,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:07:35,680 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:07:35,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,699 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (1/1) ... [2018-12-08 17:07:35,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:07:35,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:07:35,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:07:35,708 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:07:35,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/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 [2018-12-08 17:07:35,739 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-08 17:07:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-08 17:07:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 17:07:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 17:07:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-08 17:07:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-08 17:07:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 17:07:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-08 17:07:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-08 17:07:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-08 17:07:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-08 17:07:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-08 17:07:35,740 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-08 17:07:35,740 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-08 17:07:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-08 17:07:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-08 17:07:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-08 17:07:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2018-12-08 17:07:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2018-12-08 17:07:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-08 17:07:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-08 17:07:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-08 17:07:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-08 17:07:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-08 17:07:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-08 17:07:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-08 17:07:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-08 17:07:35,741 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-08 17:07:35,741 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-08 17:07:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-08 17:07:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-08 17:07:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-08 17:07:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-08 17:07:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-08 17:07:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-08 17:07:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-08 17:07:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-08 17:07:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-08 17:07:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-08 17:07:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-08 17:07:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-08 17:07:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-08 17:07:35,742 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-08 17:07:35,742 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-08 17:07:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-08 17:07:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-08 17:07:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-08 17:07:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-08 17:07:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-08 17:07:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-08 17:07:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-08 17:07:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 17:07:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 17:07:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 17:07:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-08 17:07:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-08 17:07:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-08 17:07:35,743 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-08 17:07:35,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:07:35,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:07:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-08 17:07:35,744 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-08 17:07:36,036 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:07:36,037 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 17:07:36,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:07:36 BoogieIcfgContainer [2018-12-08 17:07:36,037 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:07:36,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:07:36,037 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:07:36,039 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:07:36,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:07:35" (1/3) ... [2018-12-08 17:07:36,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194121fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:07:36, skipping insertion in model container [2018-12-08 17:07:36,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:07:35" (2/3) ... [2018-12-08 17:07:36,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@194121fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:07:36, skipping insertion in model container [2018-12-08 17:07:36,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:07:36" (3/3) ... [2018-12-08 17:07:36,041 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61_true-unreach-call_false-termination.cil.c [2018-12-08 17:07:36,047 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:07:36,052 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 17:07:36,065 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 17:07:36,089 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:07:36,089 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:07:36,089 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:07:36,089 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:07:36,089 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:07:36,089 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:07:36,089 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:07:36,089 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:07:36,106 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states. [2018-12-08 17:07:36,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 17:07:36,112 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:36,112 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:36,114 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:36,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:36,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1498738476, now seen corresponding path program 1 times [2018-12-08 17:07:36,119 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:36,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:36,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:36,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:36,148 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:36,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:07:36,272 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:07:36,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 17:07:36,273 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:36,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 17:07:36,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 17:07:36,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:07:36,285 INFO L87 Difference]: Start difference. First operand 163 states. Second operand 2 states. [2018-12-08 17:07:36,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:36,308 INFO L93 Difference]: Finished difference Result 300 states and 375 transitions. [2018-12-08 17:07:36,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 17:07:36,309 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-08 17:07:36,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:36,316 INFO L225 Difference]: With dead ends: 300 [2018-12-08 17:07:36,316 INFO L226 Difference]: Without dead ends: 150 [2018-12-08 17:07:36,319 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 17:07:36,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2018-12-08 17:07:36,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2018-12-08 17:07:36,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-12-08 17:07:36,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 179 transitions. [2018-12-08 17:07:36,351 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 179 transitions. Word has length 46 [2018-12-08 17:07:36,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:36,351 INFO L480 AbstractCegarLoop]: Abstraction has 150 states and 179 transitions. [2018-12-08 17:07:36,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 17:07:36,351 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 179 transitions. [2018-12-08 17:07:36,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-08 17:07:36,353 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:36,353 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:36,353 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:36,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:36,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1709760892, now seen corresponding path program 1 times [2018-12-08 17:07:36,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:36,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:36,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:36,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:36,354 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:36,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:07:36,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:07:36,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 17:07:36,400 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:36,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 17:07:36,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 17:07:36,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:07:36,402 INFO L87 Difference]: Start difference. First operand 150 states and 179 transitions. Second operand 3 states. [2018-12-08 17:07:36,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:36,422 INFO L93 Difference]: Finished difference Result 249 states and 297 transitions. [2018-12-08 17:07:36,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 17:07:36,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-08 17:07:36,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:36,424 INFO L225 Difference]: With dead ends: 249 [2018-12-08 17:07:36,424 INFO L226 Difference]: Without dead ends: 141 [2018-12-08 17:07:36,425 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 17:07:36,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-12-08 17:07:36,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-12-08 17:07:36,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-12-08 17:07:36,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 167 transitions. [2018-12-08 17:07:36,434 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 167 transitions. Word has length 47 [2018-12-08 17:07:36,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:36,434 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 167 transitions. [2018-12-08 17:07:36,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 17:07:36,434 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 167 transitions. [2018-12-08 17:07:36,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-08 17:07:36,435 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:36,435 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:36,436 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:36,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:36,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1598085398, now seen corresponding path program 1 times [2018-12-08 17:07:36,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:36,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:36,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:36,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:36,436 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:36,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:07:36,502 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:07:36,502 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 17:07:36,502 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:36,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 17:07:36,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 17:07:36,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 17:07:36,503 INFO L87 Difference]: Start difference. First operand 141 states and 167 transitions. Second operand 7 states. [2018-12-08 17:07:36,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:36,675 INFO L93 Difference]: Finished difference Result 258 states and 311 transitions. [2018-12-08 17:07:36,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 17:07:36,676 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-08 17:07:36,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:36,677 INFO L225 Difference]: With dead ends: 258 [2018-12-08 17:07:36,677 INFO L226 Difference]: Without dead ends: 141 [2018-12-08 17:07:36,678 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-08 17:07:36,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2018-12-08 17:07:36,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2018-12-08 17:07:36,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-12-08 17:07:36,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 166 transitions. [2018-12-08 17:07:36,685 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 166 transitions. Word has length 51 [2018-12-08 17:07:36,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:36,686 INFO L480 AbstractCegarLoop]: Abstraction has 141 states and 166 transitions. [2018-12-08 17:07:36,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 17:07:36,686 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 166 transitions. [2018-12-08 17:07:36,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-12-08 17:07:36,687 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:36,687 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:36,687 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:36,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:36,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1284631829, now seen corresponding path program 1 times [2018-12-08 17:07:36,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:36,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:36,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:36,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:36,688 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:36,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:07:36,741 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:07:36,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 17:07:36,742 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:36,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 17:07:36,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 17:07:36,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 17:07:36,742 INFO L87 Difference]: Start difference. First operand 141 states and 166 transitions. Second operand 5 states. [2018-12-08 17:07:37,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:37,068 INFO L93 Difference]: Finished difference Result 367 states and 446 transitions. [2018-12-08 17:07:37,068 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 17:07:37,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2018-12-08 17:07:37,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:37,070 INFO L225 Difference]: With dead ends: 367 [2018-12-08 17:07:37,070 INFO L226 Difference]: Without dead ends: 250 [2018-12-08 17:07:37,070 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:07:37,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2018-12-08 17:07:37,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 232. [2018-12-08 17:07:37,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2018-12-08 17:07:37,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 264 transitions. [2018-12-08 17:07:37,085 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 264 transitions. Word has length 69 [2018-12-08 17:07:37,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:37,085 INFO L480 AbstractCegarLoop]: Abstraction has 232 states and 264 transitions. [2018-12-08 17:07:37,085 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 17:07:37,085 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 264 transitions. [2018-12-08 17:07:37,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-08 17:07:37,086 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:37,086 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:37,086 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:37,086 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:37,086 INFO L82 PathProgramCache]: Analyzing trace with hash -65271002, now seen corresponding path program 1 times [2018-12-08 17:07:37,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:37,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:37,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:37,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:37,087 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:37,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:07:37,149 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:07:37,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-08 17:07:37,150 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:37,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 17:07:37,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 17:07:37,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:07:37,150 INFO L87 Difference]: Start difference. First operand 232 states and 264 transitions. Second operand 8 states. [2018-12-08 17:07:37,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:37,179 INFO L93 Difference]: Finished difference Result 447 states and 523 transitions. [2018-12-08 17:07:37,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 17:07:37,179 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2018-12-08 17:07:37,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:37,181 INFO L225 Difference]: With dead ends: 447 [2018-12-08 17:07:37,181 INFO L226 Difference]: Without dead ends: 239 [2018-12-08 17:07:37,182 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-08 17:07:37,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-12-08 17:07:37,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 236. [2018-12-08 17:07:37,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 236 states. [2018-12-08 17:07:37,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 268 transitions. [2018-12-08 17:07:37,195 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 268 transitions. Word has length 83 [2018-12-08 17:07:37,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:37,195 INFO L480 AbstractCegarLoop]: Abstraction has 236 states and 268 transitions. [2018-12-08 17:07:37,195 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 17:07:37,195 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 268 transitions. [2018-12-08 17:07:37,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-08 17:07:37,196 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:37,197 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:37,197 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:37,197 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:37,197 INFO L82 PathProgramCache]: Analyzing trace with hash -766870876, now seen corresponding path program 1 times [2018-12-08 17:07:37,197 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:37,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:37,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:37,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:37,198 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:37,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:37,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:07:37,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:07:37,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:07:37,259 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:37,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:07:37,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:07:37,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:07:37,260 INFO L87 Difference]: Start difference. First operand 236 states and 268 transitions. Second operand 6 states. [2018-12-08 17:07:37,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:37,386 INFO L93 Difference]: Finished difference Result 645 states and 754 transitions. [2018-12-08 17:07:37,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 17:07:37,386 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-12-08 17:07:37,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:37,388 INFO L225 Difference]: With dead ends: 645 [2018-12-08 17:07:37,388 INFO L226 Difference]: Without dead ends: 433 [2018-12-08 17:07:37,389 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-08 17:07:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2018-12-08 17:07:37,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 427. [2018-12-08 17:07:37,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2018-12-08 17:07:37,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 486 transitions. [2018-12-08 17:07:37,417 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 486 transitions. Word has length 83 [2018-12-08 17:07:37,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:37,418 INFO L480 AbstractCegarLoop]: Abstraction has 427 states and 486 transitions. [2018-12-08 17:07:37,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:07:37,418 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 486 transitions. [2018-12-08 17:07:37,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-12-08 17:07:37,419 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:37,420 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:37,420 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:37,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:37,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1867403624, now seen corresponding path program 1 times [2018-12-08 17:07:37,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:37,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:37,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:37,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:37,421 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:07:37,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:07:37,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 17:07:37,495 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:37,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 17:07:37,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 17:07:37,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-08 17:07:37,495 INFO L87 Difference]: Start difference. First operand 427 states and 486 transitions. Second operand 7 states. [2018-12-08 17:07:37,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:37,798 INFO L93 Difference]: Finished difference Result 460 states and 536 transitions. [2018-12-08 17:07:37,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-08 17:07:37,799 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2018-12-08 17:07:37,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:37,800 INFO L225 Difference]: With dead ends: 460 [2018-12-08 17:07:37,800 INFO L226 Difference]: Without dead ends: 457 [2018-12-08 17:07:37,800 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-08 17:07:37,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2018-12-08 17:07:37,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 427. [2018-12-08 17:07:37,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2018-12-08 17:07:37,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 485 transitions. [2018-12-08 17:07:37,813 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 485 transitions. Word has length 87 [2018-12-08 17:07:37,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:37,814 INFO L480 AbstractCegarLoop]: Abstraction has 427 states and 485 transitions. [2018-12-08 17:07:37,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 17:07:37,814 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 485 transitions. [2018-12-08 17:07:37,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-12-08 17:07:37,815 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:37,815 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:37,815 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:37,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:37,815 INFO L82 PathProgramCache]: Analyzing trace with hash 157461945, now seen corresponding path program 1 times [2018-12-08 17:07:37,815 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:37,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:37,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:37,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:37,816 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:37,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 17:07:37,847 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:07:37,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 17:07:37,847 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:37,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 17:07:37,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 17:07:37,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 17:07:37,848 INFO L87 Difference]: Start difference. First operand 427 states and 485 transitions. Second operand 6 states. [2018-12-08 17:07:37,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:37,870 INFO L93 Difference]: Finished difference Result 844 states and 982 transitions. [2018-12-08 17:07:37,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 17:07:37,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2018-12-08 17:07:37,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:37,872 INFO L225 Difference]: With dead ends: 844 [2018-12-08 17:07:37,872 INFO L226 Difference]: Without dead ends: 441 [2018-12-08 17:07:37,872 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-08 17:07:37,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2018-12-08 17:07:37,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 437. [2018-12-08 17:07:37,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2018-12-08 17:07:37,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 495 transitions. [2018-12-08 17:07:37,885 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 495 transitions. Word has length 103 [2018-12-08 17:07:37,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:37,885 INFO L480 AbstractCegarLoop]: Abstraction has 437 states and 495 transitions. [2018-12-08 17:07:37,885 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 17:07:37,885 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 495 transitions. [2018-12-08 17:07:37,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-12-08 17:07:37,886 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:37,886 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:37,886 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:37,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:37,886 INFO L82 PathProgramCache]: Analyzing trace with hash 937564156, now seen corresponding path program 1 times [2018-12-08 17:07:37,886 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:37,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:37,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:37,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:37,887 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:37,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 17:07:37,932 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 17:07:37,932 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 17:07:37,932 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:37,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-08 17:07:37,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 17:07:37,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:07:37,933 INFO L87 Difference]: Start difference. First operand 437 states and 495 transitions. Second operand 4 states. [2018-12-08 17:07:38,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:38,044 INFO L93 Difference]: Finished difference Result 1297 states and 1546 transitions. [2018-12-08 17:07:38,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 17:07:38,045 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 103 [2018-12-08 17:07:38,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:38,047 INFO L225 Difference]: With dead ends: 1297 [2018-12-08 17:07:38,047 INFO L226 Difference]: Without dead ends: 884 [2018-12-08 17:07:38,049 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 17:07:38,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2018-12-08 17:07:38,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 869. [2018-12-08 17:07:38,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 869 states. [2018-12-08 17:07:38,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 869 states to 869 states and 1015 transitions. [2018-12-08 17:07:38,075 INFO L78 Accepts]: Start accepts. Automaton has 869 states and 1015 transitions. Word has length 103 [2018-12-08 17:07:38,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:38,076 INFO L480 AbstractCegarLoop]: Abstraction has 869 states and 1015 transitions. [2018-12-08 17:07:38,076 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-08 17:07:38,076 INFO L276 IsEmpty]: Start isEmpty. Operand 869 states and 1015 transitions. [2018-12-08 17:07:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-12-08 17:07:38,077 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:38,077 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:38,077 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:38,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:38,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1484540002, now seen corresponding path program 1 times [2018-12-08 17:07:38,078 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:38,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:38,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:38,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:38,078 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:38,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:38,190 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 17:07:38,190 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:07:38,191 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 17:07:38,191 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2018-12-08 17:07:38,192 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [33], [36], [37], [38], [50], [53], [55], [56], [59], [74], [77], [78], [82], [83], [85], [94], [98], [102], [105], [110], [113], [118], [121], [136], [137], [140], [141], [142], [144], [149], [152], [153], [155], [160], [162], [163], [168], [170], [176], [180], [213], [214], [222], [226], [229], [231], [234], [244], [247], [251], [252], [255], [257], [260], [262], [265], [274], [275], [276], [277], [278], [279], [280], [281], [282], [290], [291], [294], [296], [297], [304], [305], [306], [307], [308], [309], [310], [314], [315], [316], [317], [318], [319], [322], [323], [324], [330], [331], [332], [334], [335], [336], [337], [342], [343], [344], [345], [346] [2018-12-08 17:07:38,215 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 17:07:38,215 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 17:07:38,530 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 17:07:38,531 INFO L272 AbstractInterpreter]: Visited 105 different actions 107 times. Never merged. Never widened. Performed 3366 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3366 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-08 17:07:38,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:38,537 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 17:07:38,537 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:07:38,537 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/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 [2018-12-08 17:07:38,544 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:38,544 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 17:07:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:38,620 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:07:38,732 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 17:07:38,732 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 17:07:39,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 17:07:39,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-08 17:07:39,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-08 17:07:39,367 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:39,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 17:07:39,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 17:07:39,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-08 17:07:39,368 INFO L87 Difference]: Start difference. First operand 869 states and 1015 transitions. Second operand 8 states. [2018-12-08 17:07:39,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:39,598 INFO L93 Difference]: Finished difference Result 1684 states and 1979 transitions. [2018-12-08 17:07:39,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 17:07:39,599 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 107 [2018-12-08 17:07:39,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:39,602 INFO L225 Difference]: With dead ends: 1684 [2018-12-08 17:07:39,602 INFO L226 Difference]: Without dead ends: 839 [2018-12-08 17:07:39,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 196 SyntacticMatches, 8 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-08 17:07:39,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2018-12-08 17:07:39,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 839. [2018-12-08 17:07:39,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 839 states. [2018-12-08 17:07:39,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 839 states to 839 states and 966 transitions. [2018-12-08 17:07:39,627 INFO L78 Accepts]: Start accepts. Automaton has 839 states and 966 transitions. Word has length 107 [2018-12-08 17:07:39,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:39,627 INFO L480 AbstractCegarLoop]: Abstraction has 839 states and 966 transitions. [2018-12-08 17:07:39,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 17:07:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 839 states and 966 transitions. [2018-12-08 17:07:39,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-12-08 17:07:39,629 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:07:39,629 INFO L402 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 17:07:39,629 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:07:39,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:39,630 INFO L82 PathProgramCache]: Analyzing trace with hash 98941654, now seen corresponding path program 1 times [2018-12-08 17:07:39,630 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:07:39,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:39,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:39,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:07:39,630 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:07:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:39,731 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-08 17:07:39,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:07:39,731 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 17:07:39,731 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-12-08 17:07:39,731 INFO L205 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], [62], [64], [70], [74], [77], [78], [82], [83], [84], [85], [94], [98], [102], [105], [108], [110], [113], [116], [118], [121], [136], [137], [138], [139], [140], [141], [142], [144], [149], [152], [153], [155], [160], [162], [163], [168], [170], [173], [176], [180], [186], [213], [214], [217], [221], [222], [226], [229], [231], [234], [241], [244], [247], [251], [252], [255], [257], [260], [262], [265], [271], [273], [274], [275], [276], [277], [278], [279], [280], [281], [282], [284], [285], [288], [289], [290], [291], [292], [293], [294], [296], [297], [298], [299], [302], [303], [304], [305], [306], [307], [308], [309], [310], [311], [314], [315], [316], [317], [318], [319], [320], [321], [322], [323], [324], [325], [330], [331], [332], [334], [335], [336], [337], [340], [341], [342], [343], [344], [345], [346] [2018-12-08 17:07:39,735 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 17:07:39,735 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 17:07:41,270 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 17:07:41,270 INFO L272 AbstractInterpreter]: Visited 144 different actions 1305 times. Merged at 17 different actions 76 times. Never widened. Performed 41846 root evaluator evaluations with a maximum evaluation depth of 5. Performed 41846 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 21 fixpoints after 4 different actions. Largest state had 132 variables. [2018-12-08 17:07:41,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:07:41,272 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 17:07:41,272 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 17:07:41,272 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/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 [2018-12-08 17:07:41,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:07:41,279 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 17:07:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 17:07:41,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 17:07:41,439 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-08 17:07:41,439 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 17:07:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-12-08 17:07:41,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-08 17:07:41,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [13, 9] total 25 [2018-12-08 17:07:41,740 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 17:07:41,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 17:07:41,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 17:07:41,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-08 17:07:41,741 INFO L87 Difference]: Start difference. First operand 839 states and 966 transitions. Second operand 8 states. [2018-12-08 17:07:41,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 17:07:41,899 INFO L93 Difference]: Finished difference Result 1403 states and 1640 transitions. [2018-12-08 17:07:41,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-08 17:07:41,899 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2018-12-08 17:07:41,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 17:07:41,900 INFO L225 Difference]: With dead ends: 1403 [2018-12-08 17:07:41,900 INFO L226 Difference]: Without dead ends: 0 [2018-12-08 17:07:41,902 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 337 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2018-12-08 17:07:41,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-08 17:07:41,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-08 17:07:41,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-08 17:07:41,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-08 17:07:41,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2018-12-08 17:07:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 17:07:41,903 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 17:07:41,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 17:07:41,903 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-08 17:07:41,903 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 17:07:41,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-08 17:07:41,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:07:42,053 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:07:42,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:07:42,097 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:07:42,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:07:42,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-08 17:07:42,489 WARN L180 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2018-12-08 17:07:43,356 WARN L180 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 32 [2018-12-08 17:07:43,744 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2018-12-08 17:07:43,744 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2018-12-08 17:07:43,745 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2018-12-08 17:07:43,745 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2018-12-08 17:07:43,745 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2018-12-08 17:07:43,745 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 300 322) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 17:07:43,745 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 300 322) no Hoare annotation was computed. [2018-12-08 17:07:43,745 INFO L444 ceAbstractionStarter]: At program point L312(line 312) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 17:07:43,745 INFO L444 ceAbstractionStarter]: At program point L312-1(line 312) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= main_~tmp~1 1) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 17:07:43,745 INFO L448 ceAbstractionStarter]: For program point L310(lines 310 317) no Hoare annotation was computed. [2018-12-08 17:07:43,745 INFO L448 ceAbstractionStarter]: For program point L310-1(lines 310 317) no Hoare annotation was computed. [2018-12-08 17:07:43,745 INFO L448 ceAbstractionStarter]: For program point L308(line 308) no Hoare annotation was computed. [2018-12-08 17:07:43,745 INFO L444 ceAbstractionStarter]: At program point L307(line 307) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 17:07:43,745 INFO L444 ceAbstractionStarter]: At program point L306(line 306) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 17:07:43,745 INFO L444 ceAbstractionStarter]: At program point L306-1(line 306) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 17:07:43,745 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 300 322) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L444 ceAbstractionStarter]: At program point L406(line 406) 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))) [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point L406-1(lines 387 411) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L444 ceAbstractionStarter]: At program point L401(line 401) 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))) [2018-12-08 17:07:43,746 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 387 411) 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))) [2018-12-08 17:07:43,746 INFO L444 ceAbstractionStarter]: At program point L397(line 397) 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))) [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 387 411) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point L395(lines 395 403) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L444 ceAbstractionStarter]: At program point L393(line 393) 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))) [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point L393-1(line 393) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point L391(lines 391 408) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 482 490) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 482 490) the Hoare annotation is: true [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 482 490) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point L555(lines 555 559) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 546 564) the Hoare annotation is: true [2018-12-08 17:07:43,746 INFO L451 ceAbstractionStarter]: At program point L553(line 553) the Hoare annotation is: true [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point L555-2(lines 555 559) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point L553-1(line 553) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 546 564) no Hoare annotation was computed. [2018-12-08 17:07:43,746 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 546 564) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2018-12-08 17:07:43,747 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 290 299) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 290 299) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 290 299) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 471 481) the Hoare annotation is: true [2018-12-08 17:07:43,747 INFO L451 ceAbstractionStarter]: At program point L476(line 476) the Hoare annotation is: true [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point L476-1(line 476) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 471 481) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 471 481) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 463 470) 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))) [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 463 470) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 463 470) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point L417(lines 417 434) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 413 437) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 413 437) 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))) [2018-12-08 17:07:43,747 INFO L444 ceAbstractionStarter]: At program point L432(line 432) 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))) [2018-12-08 17:07:43,747 INFO L448 ceAbstractionStarter]: For program point L432-1(lines 413 437) no Hoare annotation was computed. [2018-12-08 17:07:43,747 INFO L444 ceAbstractionStarter]: At program point L427(line 427) 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))) [2018-12-08 17:07:43,747 INFO L444 ceAbstractionStarter]: At program point L423(line 423) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse0 (< ~methaneLevelCritical~0 1)) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (and (<= ~methaneLevelCritical~0 processEnvironment_~tmp~4) .cse1) .cse2) (or .cse2 .cse3 .cse1) (or .cse0 .cse4 .cse2) (or .cse4 .cse2 .cse3))) [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point L421(lines 421 429) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L444 ceAbstractionStarter]: At program point L419(line 419) 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))) [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point L419-1(line 419) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 175) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 165 178) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 165 178) the Hoare annotation is: true [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 165 178) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 353 359) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 353 359) the Hoare annotation is: true [2018-12-08 17:07:43,748 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 566 629) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (= 1 ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 566 629) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L444 ceAbstractionStarter]: At program point L622(lines 575 623) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point L612(lines 612 616) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L444 ceAbstractionStarter]: At program point L612-2(lines 606 617) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0))) [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point L577(lines 576 621) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point L606(lines 606 617) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L444 ceAbstractionStarter]: At program point L598(line 598) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point L596(lines 596 602) no Hoare annotation was computed. [2018-12-08 17:07:43,748 INFO L448 ceAbstractionStarter]: For program point L596-1(lines 596 602) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L444 ceAbstractionStarter]: At program point L588(line 588) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-12-08 17:07:43,749 INFO L444 ceAbstractionStarter]: At program point L619(lines 576 621) the Hoare annotation is: (let ((.cse0 (= test_~splverifierCounter~0 0))) (or (and (= 0 ~pumpRunning~0) (<= 1 ~methaneLevelCritical~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point L586(lines 586 592) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point L586-1(lines 586 592) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 566 629) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point L578(lines 578 582) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L444 ceAbstractionStarter]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 438 445) 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))) [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 438 445) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 438 445) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 179 187) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 179 187) the Hoare annotation is: true [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 179 187) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= |old(~pumpRunning~0)| ~pumpRunning~0) [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 446 462) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L444 ceAbstractionStarter]: At program point L457(line 457) 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))) [2018-12-08 17:07:43,749 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 446 462) 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))))) [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point L457-1(lines 446 462) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point L453(lines 453 459) no Hoare annotation was computed. [2018-12-08 17:07:43,749 INFO L444 ceAbstractionStarter]: At program point L451(line 451) 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))))) [2018-12-08 17:07:43,749 INFO L448 ceAbstractionStarter]: For program point L451-1(line 451) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 527 545) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point L536(lines 536 540) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L451 ceAbstractionStarter]: At program point L534(line 534) the Hoare annotation is: true [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point L536-2(lines 536 540) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 527 545) the Hoare annotation is: true [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point L534-1(line 534) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 527 545) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L444 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 112 123) 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))))) [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 112 123) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point L116-1(lines 112 123) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L444 ceAbstractionStarter]: At program point L342(line 342) 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)))) [2018-12-08 17:07:43,750 INFO L444 ceAbstractionStarter]: At program point L340(lines 340 346) 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)))) [2018-12-08 17:07:43,750 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 329 352) 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)))) [2018-12-08 17:07:43,750 INFO L444 ceAbstractionStarter]: At program point L335(line 335) 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))) [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point L333(lines 332 351) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 329 352) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 329 352) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 227 256) no Hoare annotation was computed. [2018-12-08 17:07:43,750 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 227 256) the Hoare annotation is: true [2018-12-08 17:07:43,751 INFO L451 ceAbstractionStarter]: At program point L252(lines 227 256) the Hoare annotation is: true [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point L248(line 248) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point L241(lines 241 245) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L451 ceAbstractionStarter]: At program point L241-1(lines 241 245) the Hoare annotation is: true [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point L238(line 238) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L451 ceAbstractionStarter]: At program point L237-2(lines 237 251) the Hoare annotation is: true [2018-12-08 17:07:43,751 INFO L451 ceAbstractionStarter]: At program point L233(line 233) the Hoare annotation is: true [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point L233-1(line 233) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 124 132) the Hoare annotation is: true [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 124 132) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 124 132) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L451 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 88 99) the Hoare annotation is: true [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point L92-1(lines 88 99) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 88 99) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 282 288) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 282 288) the Hoare annotation is: true [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L444 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)) [2018-12-08 17:07:43,751 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-08 17:07:43,751 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 361 385) 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))) [2018-12-08 17:07:43,751 INFO L444 ceAbstractionStarter]: At program point L380(line 380) 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))) [2018-12-08 17:07:43,751 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 361 385) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point L380-1(lines 361 385) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L444 ceAbstractionStarter]: At program point L375(line 375) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= |old(~pumpRunning~0)| ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1)))) (and (or (= |old(~pumpRunning~0)| 0) .cse0 .cse1) (or .cse2 .cse0 .cse1) (or (< ~methaneLevelCritical~0 1) (not (= 0 |old(~pumpRunning~0)|)) .cse2 .cse0))) [2018-12-08 17:07:43,752 INFO L444 ceAbstractionStarter]: At program point L371(line 371) 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))) [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point L369(lines 369 377) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L444 ceAbstractionStarter]: At program point L367(line 367) 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))) [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point L367-1(line 367) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point L365(lines 365 382) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 100 111) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point L104-1(lines 100 111) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 100 111) 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))))) [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 189 196) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 189 196) the Hoare annotation is: true [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 189 196) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 199 223) the Hoare annotation is: true [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 199 223) no Hoare annotation was computed. [2018-12-08 17:07:43,752 INFO L444 ceAbstractionStarter]: At program point L213(line 213) 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))))) [2018-12-08 17:07:43,752 INFO L448 ceAbstractionStarter]: For program point L211(lines 211 217) no Hoare annotation was computed. [2018-12-08 17:07:43,753 INFO L444 ceAbstractionStarter]: At program point L209(line 209) the Hoare annotation is: (or (not (= ~systemActive~0 1)) (not (= ~methaneLevelCritical~0 0))) [2018-12-08 17:07:43,753 INFO L448 ceAbstractionStarter]: For program point L209-1(line 209) no Hoare annotation was computed. [2018-12-08 17:07:43,753 INFO L448 ceAbstractionStarter]: For program point L207(lines 207 220) no Hoare annotation was computed. [2018-12-08 17:07:43,753 INFO L448 ceAbstractionStarter]: For program point L207-1(lines 199 223) no Hoare annotation was computed. [2018-12-08 17:07:43,753 INFO L451 ceAbstractionStarter]: At program point L205(line 205) the Hoare annotation is: true [2018-12-08 17:07:43,753 INFO L448 ceAbstractionStarter]: For program point L205-1(line 205) no Hoare annotation was computed. [2018-12-08 17:07:43,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:07:43 BoogieIcfgContainer [2018-12-08 17:07:43,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:07:43,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:07:43,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:07:43,762 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:07:43,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:07:36" (3/4) ... [2018-12-08 17:07:43,765 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__lowWaterSensor [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-08 17:07:43,769 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-08 17:07:43,770 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-12-08 17:07:43,774 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2018-12-08 17:07:43,775 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-08 17:07:43,775 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-08 17:07:43,775 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-08 17:07:43,775 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 17:07:43,775 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 17:07:43,792 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((0 == pumpRunning && 1 <= methaneLevelCritical) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter == 0) [2018-12-08 17:07:43,792 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-12-08 17:07:43,825 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b2b5b063-a632-40d2-a1b8-ac35893ca58e/bin-2019/utaipan/witness.graphml [2018-12-08 17:07:43,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:07:43,825 INFO L168 Benchmark]: Toolchain (without parser) took 8490.92 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 597.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -163.9 MB). Peak memory consumption was 433.3 MB. Max. memory is 11.5 GB. [2018-12-08 17:07:43,826 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:07:43,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-08 17:07:43,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.89 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. [2018-12-08 17:07:43,826 INFO L168 Benchmark]: Boogie Preprocessor took 27.03 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. [2018-12-08 17:07:43,826 INFO L168 Benchmark]: RCFGBuilder took 329.58 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: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 11.5 GB. [2018-12-08 17:07:43,826 INFO L168 Benchmark]: TraceAbstraction took 7724.16 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 463.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -73.6 MB). Peak memory consumption was 568.8 MB. Max. memory is 11.5 GB. [2018-12-08 17:07:43,826 INFO L168 Benchmark]: Witness Printer took 62.96 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-12-08 17:07:43,827 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 320.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -163.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.89 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 27.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 329.58 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: 57.4 MB). Peak memory consumption was 57.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7724.16 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 463.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -73.6 MB). Peak memory consumption was 568.8 MB. Max. memory is 11.5 GB. * Witness Printer took 62.96 ms. Allocated memory is still 1.6 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.0 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 193]: 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: 237]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: ((((((0 == pumpRunning && 1 <= methaneLevelCritical) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || !(systemActive == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 30 procedures, 163 locations, 1 error locations. SAFE Result, 7.6s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 1.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 2199 SDtfs, 1072 SDslu, 5844 SDs, 0 SdLazy, 1691 SolverSat, 270 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 685 GetRequests, 578 SyntacticMatches, 15 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=869occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.8s AbstIntTime, 2 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 76 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 68 LocationsWithAnnotation, 1755 PreInvPairs, 1843 NumberOfFragments, 1647 HoareAnnotationTreeSize, 1755 FomulaSimplifications, 1981 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 68 FomulaSimplificationsInter, 6689 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 1238 NumberOfCodeBlocks, 1238 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1506 ConstructedInterpolants, 0 QuantifiedInterpolants, 276205 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1655 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 163/171 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...