./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product42_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product42_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/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 284d5750b565b650dea59fef4c61eb2e70211282 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:57:52,624 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:57:52,625 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:57:52,633 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:57:52,634 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:57:52,634 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:57:52,635 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:57:52,636 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:57:52,638 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:57:52,638 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:57:52,639 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:57:52,639 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:57:52,640 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:57:52,640 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:57:52,641 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:57:52,642 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:57:52,642 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:57:52,643 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:57:52,644 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:57:52,645 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:57:52,646 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:57:52,647 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:57:52,648 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:57:52,649 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:57:52,649 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:57:52,649 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:57:52,650 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:57:52,650 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:57:52,651 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:57:52,652 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:57:52,652 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:57:52,652 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:57:52,652 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:57:52,653 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:57:52,653 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:57:52,654 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:57:52,654 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:57:52,663 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:57:52,663 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:57:52,664 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:57:52,664 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:57:52,664 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:57:52,664 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:57:52,664 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:57:52,664 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:57:52,665 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:57:52,665 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:57:52,665 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:57:52,665 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:57:52,665 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:57:52,666 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:57:52,666 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:57:52,666 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:57:52,666 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:57:52,666 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:57:52,667 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:57:52,667 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:57:52,667 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:57:52,667 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:57:52,667 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:57:52,667 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:57:52,667 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:57:52,667 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:57:52,668 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:57:52,668 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:57:52,668 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:57:52,668 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:57:52,668 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:57:52,668 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:57:52,668 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:57:52,668 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:57:52,669 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:57:52,669 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:57:52,669 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:57:52,669 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_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/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 -> 284d5750b565b650dea59fef4c61eb2e70211282 [2018-11-18 15:57:52,692 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:57:52,701 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:57:52,704 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:57:52,705 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:57:52,705 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:57:52,706 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product42_true-unreach-call_false-termination.cil.c [2018-11-18 15:57:52,748 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/data/b184745f3/643881535e8642b3be4dc8cce97652e4/FLAGb4638dd78 [2018-11-18 15:57:53,182 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:57:53,182 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/sv-benchmarks/c/product-lines/minepump_spec3_product42_true-unreach-call_false-termination.cil.c [2018-11-18 15:57:53,189 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/data/b184745f3/643881535e8642b3be4dc8cce97652e4/FLAGb4638dd78 [2018-11-18 15:57:53,198 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/data/b184745f3/643881535e8642b3be4dc8cce97652e4 [2018-11-18 15:57:53,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:57:53,201 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:57:53,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:57:53,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:57:53,205 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:57:53,205 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,207 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345e74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53, skipping insertion in model container [2018-11-18 15:57:53,207 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:57:53,246 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:57:53,442 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:57:53,451 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:57:53,562 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:57:53,584 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:57:53,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53 WrapperNode [2018-11-18 15:57:53,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:57:53,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:57:53,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:57:53,585 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:57:53,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,606 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,614 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:57:53,614 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:57:53,614 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:57:53,614 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:57:53,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,638 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,640 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (1/1) ... [2018-11-18 15:57:53,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:57:53,643 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:57:53,643 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:57:53,643 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:57:53,644 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:57:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-11-18 15:57:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-11-18 15:57:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:57:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:57:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:57:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-11-18 15:57:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-11-18 15:57:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-11-18 15:57:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-11-18 15:57:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-11-18 15:57:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-11-18 15:57:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-11-18 15:57:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-11-18 15:57:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-11-18 15:57:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-11-18 15:57:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-11-18 15:57:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-11-18 15:57:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-11-18 15:57:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-11-18 15:57:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-11-18 15:57:53,687 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-11-18 15:57:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-11-18 15:57:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-11-18 15:57:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-11-18 15:57:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-11-18 15:57:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-11-18 15:57:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-11-18 15:57:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-11-18 15:57:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-11-18 15:57:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-11-18 15:57:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-11-18 15:57:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-11-18 15:57:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-11-18 15:57:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-11-18 15:57:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-11-18 15:57:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-11-18 15:57:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-11-18 15:57:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-11-18 15:57:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-11-18 15:57:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-11-18 15:57:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-11-18 15:57:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-11-18 15:57:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-11-18 15:57:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2018-11-18 15:57:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2018-11-18 15:57:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:57:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:57:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-11-18 15:57:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-11-18 15:57:53,689 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-11-18 15:57:53,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-11-18 15:57:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-11-18 15:57:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-11-18 15:57:53,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:57:53,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:57:54,092 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:57:54,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:57:54 BoogieIcfgContainer [2018-11-18 15:57:54,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:57:54,093 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:57:54,094 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:57:54,096 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:57:54,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:57:53" (1/3) ... [2018-11-18 15:57:54,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bfe6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:57:54, skipping insertion in model container [2018-11-18 15:57:54,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:57:53" (2/3) ... [2018-11-18 15:57:54,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73bfe6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:57:54, skipping insertion in model container [2018-11-18 15:57:54,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:57:54" (3/3) ... [2018-11-18 15:57:54,099 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product42_true-unreach-call_false-termination.cil.c [2018-11-18 15:57:54,110 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:57:54,116 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:57:54,131 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:57:54,158 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:57:54,158 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:57:54,158 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:57:54,158 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:57:54,158 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:57:54,158 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:57:54,159 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:57:54,159 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:57:54,171 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2018-11-18 15:57:54,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-11-18 15:57:54,178 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:54,178 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:54,181 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:54,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:54,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1846982104, now seen corresponding path program 1 times [2018-11-18 15:57:54,187 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:54,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:54,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:54,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:54,215 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:54,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:54,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:57:54,384 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:57:54,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:57:54,384 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:54,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:57:54,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:57:54,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:57:54,396 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 2 states. [2018-11-18 15:57:54,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:54,419 INFO L93 Difference]: Finished difference Result 258 states and 317 transitions. [2018-11-18 15:57:54,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:57:54,420 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-11-18 15:57:54,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:54,430 INFO L225 Difference]: With dead ends: 258 [2018-11-18 15:57:54,430 INFO L226 Difference]: Without dead ends: 129 [2018-11-18 15:57:54,433 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:57:54,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-11-18 15:57:54,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-11-18 15:57:54,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-11-18 15:57:54,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2018-11-18 15:57:54,469 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 52 [2018-11-18 15:57:54,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:54,470 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2018-11-18 15:57:54,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:57:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2018-11-18 15:57:54,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-11-18 15:57:54,472 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:54,472 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:54,472 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:54,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:54,473 INFO L82 PathProgramCache]: Analyzing trace with hash 421292415, now seen corresponding path program 1 times [2018-11-18 15:57:54,473 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:54,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:54,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:54,474 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:54,474 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:54,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:57:54,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:57:54,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:57:54,560 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:54,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:57:54,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:57:54,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:57:54,562 INFO L87 Difference]: Start difference. First operand 129 states and 150 transitions. Second operand 3 states. [2018-11-18 15:57:54,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:54,581 INFO L93 Difference]: Finished difference Result 201 states and 233 transitions. [2018-11-18 15:57:54,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:57:54,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-11-18 15:57:54,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:54,584 INFO L225 Difference]: With dead ends: 201 [2018-11-18 15:57:54,584 INFO L226 Difference]: Without dead ends: 119 [2018-11-18 15:57:54,585 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:57:54,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-11-18 15:57:54,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-11-18 15:57:54,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-11-18 15:57:54,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2018-11-18 15:57:54,593 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 54 [2018-11-18 15:57:54,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:54,593 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2018-11-18 15:57:54,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:57:54,594 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2018-11-18 15:57:54,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-11-18 15:57:54,594 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:54,595 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:54,595 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:54,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:54,595 INFO L82 PathProgramCache]: Analyzing trace with hash -866759303, now seen corresponding path program 1 times [2018-11-18 15:57:54,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:54,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:54,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:54,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:54,596 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:57:54,717 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:57:54,717 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:57:54,717 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:54,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:57:54,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:57:54,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:57:54,718 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 7 states. [2018-11-18 15:57:54,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:54,937 INFO L93 Difference]: Finished difference Result 214 states and 251 transitions. [2018-11-18 15:57:54,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:57:54,937 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 59 [2018-11-18 15:57:54,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:54,938 INFO L225 Difference]: With dead ends: 214 [2018-11-18 15:57:54,939 INFO L226 Difference]: Without dead ends: 119 [2018-11-18 15:57:54,939 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:57:54,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-11-18 15:57:54,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-11-18 15:57:54,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-11-18 15:57:54,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 136 transitions. [2018-11-18 15:57:54,947 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 136 transitions. Word has length 59 [2018-11-18 15:57:54,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:54,947 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 136 transitions. [2018-11-18 15:57:54,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:57:54,948 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 136 transitions. [2018-11-18 15:57:54,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-11-18 15:57:54,949 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:54,949 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:54,949 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:54,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:54,949 INFO L82 PathProgramCache]: Analyzing trace with hash -120288512, now seen corresponding path program 1 times [2018-11-18 15:57:54,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:54,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:54,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:54,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:54,951 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:55,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:57:55,024 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:57:55,024 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:57:55,024 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:55,025 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:57:55,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:57:55,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:57:55,025 INFO L87 Difference]: Start difference. First operand 119 states and 136 transitions. Second operand 5 states. [2018-11-18 15:57:55,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:55,368 INFO L93 Difference]: Finished difference Result 318 states and 379 transitions. [2018-11-18 15:57:55,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:57:55,369 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2018-11-18 15:57:55,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:55,370 INFO L225 Difference]: With dead ends: 318 [2018-11-18 15:57:55,370 INFO L226 Difference]: Without dead ends: 223 [2018-11-18 15:57:55,371 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:57:55,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2018-11-18 15:57:55,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 203. [2018-11-18 15:57:55,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-11-18 15:57:55,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 232 transitions. [2018-11-18 15:57:55,391 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 232 transitions. Word has length 67 [2018-11-18 15:57:55,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:55,391 INFO L480 AbstractCegarLoop]: Abstraction has 203 states and 232 transitions. [2018-11-18 15:57:55,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:57:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 232 transitions. [2018-11-18 15:57:55,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2018-11-18 15:57:55,392 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:55,393 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:55,393 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:55,393 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:55,393 INFO L82 PathProgramCache]: Analyzing trace with hash -2115321940, now seen corresponding path program 1 times [2018-11-18 15:57:55,394 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:55,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:55,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:55,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:55,395 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:55,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:55,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:57:55,479 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:57:55,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:57:55,480 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:55,480 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:57:55,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:57:55,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:57:55,481 INFO L87 Difference]: Start difference. First operand 203 states and 232 transitions. Second operand 6 states. [2018-11-18 15:57:55,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:55,720 INFO L93 Difference]: Finished difference Result 511 states and 612 transitions. [2018-11-18 15:57:55,720 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:57:55,721 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 81 [2018-11-18 15:57:55,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:55,725 INFO L225 Difference]: With dead ends: 511 [2018-11-18 15:57:55,725 INFO L226 Difference]: Without dead ends: 332 [2018-11-18 15:57:55,726 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:57:55,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2018-11-18 15:57:55,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 328. [2018-11-18 15:57:55,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2018-11-18 15:57:55,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 380 transitions. [2018-11-18 15:57:55,753 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 380 transitions. Word has length 81 [2018-11-18 15:57:55,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:55,753 INFO L480 AbstractCegarLoop]: Abstraction has 328 states and 380 transitions. [2018-11-18 15:57:55,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:57:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 380 transitions. [2018-11-18 15:57:55,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-18 15:57:55,755 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:55,755 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:55,756 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:55,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:55,756 INFO L82 PathProgramCache]: Analyzing trace with hash 2123501990, now seen corresponding path program 1 times [2018-11-18 15:57:55,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:55,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:55,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:55,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:55,759 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:55,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:55,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:57:55,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:57:55,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:57:55,896 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:55,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:57:55,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:57:55,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:57:55,897 INFO L87 Difference]: Start difference. First operand 328 states and 380 transitions. Second operand 6 states. [2018-11-18 15:57:56,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:56,078 INFO L93 Difference]: Finished difference Result 681 states and 816 transitions. [2018-11-18 15:57:56,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:57:56,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2018-11-18 15:57:56,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:56,082 INFO L225 Difference]: With dead ends: 681 [2018-11-18 15:57:56,082 INFO L226 Difference]: Without dead ends: 502 [2018-11-18 15:57:56,083 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:57:56,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2018-11-18 15:57:56,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 484. [2018-11-18 15:57:56,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-11-18 15:57:56,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 571 transitions. [2018-11-18 15:57:56,111 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 571 transitions. Word has length 85 [2018-11-18 15:57:56,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:56,111 INFO L480 AbstractCegarLoop]: Abstraction has 484 states and 571 transitions. [2018-11-18 15:57:56,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:57:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 571 transitions. [2018-11-18 15:57:56,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-18 15:57:56,114 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:56,114 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:56,114 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:56,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:56,114 INFO L82 PathProgramCache]: Analyzing trace with hash -1841699545, now seen corresponding path program 1 times [2018-11-18 15:57:56,114 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:56,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:56,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:56,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:56,115 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:56,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:57:56,171 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:57:56,171 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:57:56,171 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:56,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:57:56,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:57:56,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:57:56,172 INFO L87 Difference]: Start difference. First operand 484 states and 571 transitions. Second operand 5 states. [2018-11-18 15:57:56,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:56,196 INFO L93 Difference]: Finished difference Result 829 states and 996 transitions. [2018-11-18 15:57:56,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:57:56,196 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2018-11-18 15:57:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:56,199 INFO L225 Difference]: With dead ends: 829 [2018-11-18 15:57:56,199 INFO L226 Difference]: Without dead ends: 494 [2018-11-18 15:57:56,200 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:57:56,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2018-11-18 15:57:56,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 488. [2018-11-18 15:57:56,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-11-18 15:57:56,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 574 transitions. [2018-11-18 15:57:56,222 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 574 transitions. Word has length 85 [2018-11-18 15:57:56,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:56,223 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 574 transitions. [2018-11-18 15:57:56,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:57:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 574 transitions. [2018-11-18 15:57:56,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-11-18 15:57:56,224 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:56,225 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:56,225 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:56,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:56,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1914086103, now seen corresponding path program 1 times [2018-11-18 15:57:56,225 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:56,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:56,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:56,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:56,226 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:56,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:56,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:57:56,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:57:56,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 15:57:56,304 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:56,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:57:56,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:57:56,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:57:56,304 INFO L87 Difference]: Start difference. First operand 488 states and 574 transitions. Second operand 9 states. [2018-11-18 15:57:56,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:56,345 INFO L93 Difference]: Finished difference Result 969 states and 1162 transitions. [2018-11-18 15:57:56,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:57:56,346 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2018-11-18 15:57:56,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:56,348 INFO L225 Difference]: With dead ends: 969 [2018-11-18 15:57:56,348 INFO L226 Difference]: Without dead ends: 505 [2018-11-18 15:57:56,349 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:57:56,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-11-18 15:57:56,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 495. [2018-11-18 15:57:56,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 495 states. [2018-11-18 15:57:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 581 transitions. [2018-11-18 15:57:56,366 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 581 transitions. Word has length 85 [2018-11-18 15:57:56,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:56,366 INFO L480 AbstractCegarLoop]: Abstraction has 495 states and 581 transitions. [2018-11-18 15:57:56,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:57:56,367 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 581 transitions. [2018-11-18 15:57:56,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-11-18 15:57:56,368 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:56,368 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:56,368 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:56,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:56,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1027362856, now seen corresponding path program 1 times [2018-11-18 15:57:56,368 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:56,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:56,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:56,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:56,369 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:56,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:56,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 15:57:56,450 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:57:56,450 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:57:56,451 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 98 with the following transitions: [2018-11-18 15:57:56,452 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [23], [25], [26], [27], [31], [32], [33], [36], [38], [41], [51], [53], [57], [63], [67], [71], [74], [79], [85], [87], [93], [96], [108], [109], [110], [112], [115], [120], [121], [122], [123], [125], [130], [132], [133], [141], [142], [148], [152], [186], [188], [193], [195], [198], [200], [205], [219], [227], [231], [232], [235], [236], [237], [238], [239], [240], [241], [242], [243], [245], [247], [248], [249], [250], [251], [252], [257], [258], [263], [267], [268], [271], [272], [275], [276], [277], [283], [284], [285], [286], [287], [288], [289], [291], [292], [293] [2018-11-18 15:57:56,477 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:57:56,478 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:57:56,785 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-18 15:57:56,786 INFO L272 AbstractInterpreter]: Visited 71 different actions 71 times. Never merged. Never widened. Performed 2263 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2263 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 133 variables. [2018-11-18 15:57:56,801 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:56,801 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-18 15:57:57,042 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 96.62% of their original sizes. [2018-11-18 15:57:57,042 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-18 15:57:57,166 INFO L415 sIntCurrentIteration]: We unified 96 AI predicates to 96 [2018-11-18 15:57:57,166 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-18 15:57:57,167 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:57:57,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [9] total 25 [2018-11-18 15:57:57,167 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:57,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-18 15:57:57,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-18 15:57:57,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-11-18 15:57:57,168 INFO L87 Difference]: Start difference. First operand 495 states and 581 transitions. Second operand 18 states. [2018-11-18 15:57:58,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:58,559 INFO L93 Difference]: Finished difference Result 1094 states and 1304 transitions. [2018-11-18 15:57:58,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-11-18 15:57:58,559 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 97 [2018-11-18 15:57:58,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:58,562 INFO L225 Difference]: With dead ends: 1094 [2018-11-18 15:57:58,562 INFO L226 Difference]: Without dead ends: 623 [2018-11-18 15:57:58,563 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 108 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=757, Unknown=0, NotChecked=0, Total=870 [2018-11-18 15:57:58,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2018-11-18 15:57:58,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 619. [2018-11-18 15:57:58,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2018-11-18 15:57:58,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 725 transitions. [2018-11-18 15:57:58,587 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 725 transitions. Word has length 97 [2018-11-18 15:57:58,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:58,588 INFO L480 AbstractCegarLoop]: Abstraction has 619 states and 725 transitions. [2018-11-18 15:57:58,588 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-18 15:57:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 725 transitions. [2018-11-18 15:57:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-11-18 15:57:58,590 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:58,590 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:58,590 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:58,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:58,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1964761460, now seen corresponding path program 1 times [2018-11-18 15:57:58,591 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:58,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:58,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:58,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:58,592 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:58,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-18 15:57:58,678 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:57:58,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 15:57:58,678 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:58,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 15:57:58,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 15:57:58,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:57:58,679 INFO L87 Difference]: Start difference. First operand 619 states and 725 transitions. Second operand 10 states. [2018-11-18 15:57:58,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:58,964 INFO L93 Difference]: Finished difference Result 1510 states and 1824 transitions. [2018-11-18 15:57:58,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 15:57:58,965 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2018-11-18 15:57:58,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:58,969 INFO L225 Difference]: With dead ends: 1510 [2018-11-18 15:57:58,969 INFO L226 Difference]: Without dead ends: 1039 [2018-11-18 15:57:58,971 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 15:57:58,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2018-11-18 15:57:59,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1021. [2018-11-18 15:57:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2018-11-18 15:57:59,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1200 transitions. [2018-11-18 15:57:59,017 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1200 transitions. Word has length 101 [2018-11-18 15:57:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:59,017 INFO L480 AbstractCegarLoop]: Abstraction has 1021 states and 1200 transitions. [2018-11-18 15:57:59,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 15:57:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1200 transitions. [2018-11-18 15:57:59,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-11-18 15:57:59,019 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:59,019 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:57:59,020 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:59,020 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:59,020 INFO L82 PathProgramCache]: Analyzing trace with hash 28002074, now seen corresponding path program 1 times [2018-11-18 15:57:59,020 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:59,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:59,021 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:59,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:59,021 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:59,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:59,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 15:57:59,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:57:59,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 15:57:59,111 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:57:59,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 15:57:59,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 15:57:59,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:57:59,112 INFO L87 Difference]: Start difference. First operand 1021 states and 1200 transitions. Second operand 10 states. [2018-11-18 15:57:59,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:57:59,356 INFO L93 Difference]: Finished difference Result 1900 states and 2238 transitions. [2018-11-18 15:57:59,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 15:57:59,357 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 101 [2018-11-18 15:57:59,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:57:59,359 INFO L225 Difference]: With dead ends: 1900 [2018-11-18 15:57:59,359 INFO L226 Difference]: Without dead ends: 581 [2018-11-18 15:57:59,362 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 15:57:59,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2018-11-18 15:57:59,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 579. [2018-11-18 15:57:59,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 579 states. [2018-11-18 15:57:59,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 659 transitions. [2018-11-18 15:57:59,388 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 659 transitions. Word has length 101 [2018-11-18 15:57:59,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:57:59,388 INFO L480 AbstractCegarLoop]: Abstraction has 579 states and 659 transitions. [2018-11-18 15:57:59,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 15:57:59,388 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 659 transitions. [2018-11-18 15:57:59,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-11-18 15:57:59,390 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:57:59,391 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-18 15:57:59,391 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:57:59,391 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:57:59,391 INFO L82 PathProgramCache]: Analyzing trace with hash -81369813, now seen corresponding path program 1 times [2018-11-18 15:57:59,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:57:59,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:59,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:57:59,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:57:59,392 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:57:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:57:59,480 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 15:57:59,480 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:57:59,480 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:57:59,480 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-11-18 15:57:59,482 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [3], [7], [10], [18], [19], [20], [23], [25], [26], [27], [30], [31], [32], [33], [36], [38], [41], [44], [51], [52], [53], [57], [63], [67], [71], [74], [77], [79], [82], [87], [93], [96], [108], [109], [110], [112], [115], [120], [121], [122], [123], [125], [128], [130], [132], [133], [136], [138], [140], [141], [142], [148], [152], [158], [186], [188], [191], [193], [195], [198], [200], [205], [211], [219], [227], [231], [232], [235], [236], [237], [238], [239], [240], [241], [242], [243], [245], [247], [248], [249], [250], [251], [252], [253], [254], [257], [258], [259], [260], [263], [264], [267], [268], [271], [272], [275], [276], [277], [278], [283], [284], [285], [286], [287], [288], [289], [291], [292], [293] [2018-11-18 15:57:59,485 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:57:59,488 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:58:01,216 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:58:01,216 INFO L272 AbstractInterpreter]: Visited 112 different actions 700 times. Merged at 33 different actions 173 times. Widened at 1 different actions 2 times. Performed 34345 root evaluator evaluations with a maximum evaluation depth of 3. Performed 34345 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 23 fixpoints after 7 different actions. Largest state had 133 variables. [2018-11-18 15:58:01,218 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:58:01,219 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:58:01,219 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:58:01,219 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:58:01,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:58:01,225 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:58:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:58:01,307 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:58:01,388 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 15:58:01,388 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:58:01,669 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 15:58:01,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:58:01,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 9] total 19 [2018-11-18 15:58:01,686 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:58:01,686 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 15:58:01,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 15:58:01,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-11-18 15:58:01,687 INFO L87 Difference]: Start difference. First operand 579 states and 659 transitions. Second operand 8 states. [2018-11-18 15:58:02,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:58:02,113 INFO L93 Difference]: Finished difference Result 1093 states and 1261 transitions. [2018-11-18 15:58:02,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 15:58:02,113 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2018-11-18 15:58:02,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:58:02,114 INFO L225 Difference]: With dead ends: 1093 [2018-11-18 15:58:02,114 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:58:02,116 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 290 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2018-11-18 15:58:02,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:58:02,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:58:02,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:58:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:58:02,117 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 152 [2018-11-18 15:58:02,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:58:02,117 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:58:02,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 15:58:02,117 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:58:02,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:58:02,121 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:58:02,783 WARN L180 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 39 [2018-11-18 15:58:03,250 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2018-11-18 15:58:03,794 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 38 [2018-11-18 15:58:04,182 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 520 526) the Hoare annotation is: true [2018-11-18 15:58:04,182 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 520 526) no Hoare annotation was computed. [2018-11-18 15:58:04,182 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 527 535) no Hoare annotation was computed. [2018-11-18 15:58:04,182 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 527 535) the Hoare annotation is: true [2018-11-18 15:58:04,182 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 527 535) no Hoare annotation was computed. [2018-11-18 15:58:04,182 INFO L425 ceAbstractionStarter]: For program point L130-1(lines 130 137) no Hoare annotation was computed. [2018-11-18 15:58:04,182 INFO L425 ceAbstractionStarter]: For program point L128(line 128) no Hoare annotation was computed. [2018-11-18 15:58:04,182 INFO L421 ceAbstractionStarter]: At program point L127(line 127) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:58:04,183 INFO L421 ceAbstractionStarter]: At program point L126(line 126) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:58:04,183 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 120 142) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:58:04,183 INFO L421 ceAbstractionStarter]: At program point L126-1(line 126) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:58:04,183 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 120 142) no Hoare annotation was computed. [2018-11-18 15:58:04,183 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 120 142) no Hoare annotation was computed. [2018-11-18 15:58:04,183 INFO L421 ceAbstractionStarter]: At program point L132(line 132) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~0 1) (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:58:04,183 INFO L421 ceAbstractionStarter]: At program point L132-1(line 132) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= main_~tmp~0 1) (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:58:04,183 INFO L425 ceAbstractionStarter]: For program point L130(lines 130 137) no Hoare annotation was computed. [2018-11-18 15:58:04,183 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 325 333) no Hoare annotation was computed. [2018-11-18 15:58:04,183 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 325 333) the Hoare annotation is: true [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 325 333) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 513 519) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 513 519) the Hoare annotation is: true [2018-11-18 15:58:04,184 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 107 116) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 107 116) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 107 116) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L428 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 314 324) the Hoare annotation is: true [2018-11-18 15:58:04,184 INFO L428 ceAbstractionStarter]: At program point L319(line 319) the Hoare annotation is: true [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point L319-1(line 319) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 314 324) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 314 324) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 478 491) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L428 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 478 491) the Hoare annotation is: true [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point L482(lines 482 488) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 478 491) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 255 279) no Hoare annotation was computed. [2018-11-18 15:58:04,184 INFO L421 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 255 279) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (= 1 |old(~pumpRunning~0)|)) .cse1 (= ~pumpRunning~0 1)))) [2018-11-18 15:58:04,185 INFO L421 ceAbstractionStarter]: At program point L274(line 274) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1) (or (not (= 1 |old(~pumpRunning~0)|)) .cse1 (= ~pumpRunning~0 1)))) [2018-11-18 15:58:04,185 INFO L425 ceAbstractionStarter]: For program point L274-1(lines 255 279) no Hoare annotation was computed. [2018-11-18 15:58:04,185 INFO L421 ceAbstractionStarter]: At program point L269(line 269) the Hoare annotation is: (let ((.cse3 (= 0 ~pumpRunning~0)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= ~waterLevel~0 2)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 (and .cse4 .cse3)) (or .cse0 .cse1 .cse2 .cse4))) [2018-11-18 15:58:04,185 INFO L421 ceAbstractionStarter]: At program point L265(line 265) the Hoare annotation is: (let ((.cse4 (= 0 ~pumpRunning~0))) (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (and (not (= ~waterLevel~0 2)) .cse4)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (and .cse4 (= processEnvironment_~tmp~2 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2 .cse3) (or (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or .cse0 .cse3 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2)))) [2018-11-18 15:58:04,185 INFO L425 ceAbstractionStarter]: For program point L263(lines 263 271) no Hoare annotation was computed. [2018-11-18 15:58:04,185 INFO L421 ceAbstractionStarter]: At program point L261(line 261) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or (not (= 1 |old(~pumpRunning~0)|)) .cse1) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 15:58:04,185 INFO L425 ceAbstractionStarter]: For program point L261-1(line 261) no Hoare annotation was computed. [2018-11-18 15:58:04,185 INFO L425 ceAbstractionStarter]: For program point L259(lines 259 276) no Hoare annotation was computed. [2018-11-18 15:58:04,185 INFO L425 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 247 253) no Hoare annotation was computed. [2018-11-18 15:58:04,185 INFO L428 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 247 253) the Hoare annotation is: true [2018-11-18 15:58:04,185 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 145 210) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:58:04,185 INFO L425 ceAbstractionStarter]: For program point L157(lines 157 161) no Hoare annotation was computed. [2018-11-18 15:58:04,185 INFO L425 ceAbstractionStarter]: For program point L155-1(lines 155 202) no Hoare annotation was computed. [2018-11-18 15:58:04,186 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 145 210) no Hoare annotation was computed. [2018-11-18 15:58:04,186 INFO L421 ceAbstractionStarter]: At program point L203(lines 154 204) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-11-18 15:58:04,186 INFO L425 ceAbstractionStarter]: For program point L193(lines 193 197) no Hoare annotation was computed. [2018-11-18 15:58:04,186 INFO L421 ceAbstractionStarter]: At program point L193-2(lines 185 198) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (= ~systemActive~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (and .cse0 (= ~methaneLevelCritical~0 1) .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 1) .cse1 .cse2))) [2018-11-18 15:58:04,186 INFO L425 ceAbstractionStarter]: For program point L156(lines 155 202) no Hoare annotation was computed. [2018-11-18 15:58:04,186 INFO L421 ceAbstractionStarter]: At program point L187(line 187) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (= ~systemActive~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (and .cse0 (= ~methaneLevelCritical~0 1) .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 1) .cse1 .cse2))) [2018-11-18 15:58:04,186 INFO L425 ceAbstractionStarter]: For program point L185(lines 185 198) no Hoare annotation was computed. [2018-11-18 15:58:04,186 INFO L421 ceAbstractionStarter]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (= ~systemActive~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (and .cse0 (= ~methaneLevelCritical~0 1) .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 1) .cse1 .cse2))) [2018-11-18 15:58:04,186 INFO L425 ceAbstractionStarter]: For program point L175(lines 175 181) no Hoare annotation was computed. [2018-11-18 15:58:04,186 INFO L425 ceAbstractionStarter]: For program point L175-1(lines 175 181) no Hoare annotation was computed. [2018-11-18 15:58:04,186 INFO L421 ceAbstractionStarter]: At program point L200(lines 155 202) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (= ~systemActive~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (not (= ~waterLevel~0 2)) (= 0 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= ~methaneLevelCritical~0 1) .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 1) .cse1 .cse2))) [2018-11-18 15:58:04,187 INFO L421 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (= ~systemActive~0 1)) (.cse2 (= test_~splverifierCounter~0 0))) (or (and (not (= ~waterLevel~0 2)) (= 0 ~methaneLevelCritical~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= ~methaneLevelCritical~0 1) .cse1 .cse2) (not (= |old(~systemActive~0)| 1)) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= ~pumpRunning~0 1) .cse1 .cse2))) [2018-11-18 15:58:04,187 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 171) no Hoare annotation was computed. [2018-11-18 15:58:04,187 INFO L425 ceAbstractionStarter]: For program point L165-1(lines 165 171) no Hoare annotation was computed. [2018-11-18 15:58:04,187 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 145 210) no Hoare annotation was computed. [2018-11-18 15:58:04,187 INFO L421 ceAbstractionStarter]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 280 287) the Hoare annotation is: (or (= 0 ~pumpRunning~0) (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)))) [2018-11-18 15:58:04,187 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 280 287) no Hoare annotation was computed. [2018-11-18 15:58:04,187 INFO L425 ceAbstractionStarter]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 280 287) no Hoare annotation was computed. [2018-11-18 15:58:04,187 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:58:04,187 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~pumpRunning~0 |old(~pumpRunning~0)|) [2018-11-18 15:58:04,187 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:58:04,187 INFO L421 ceAbstractionStarter]: At program point L300(line 300) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse2 .cse1))) [2018-11-18 15:58:04,187 INFO L425 ceAbstractionStarter]: For program point activatePumpEXIT(lines 289 305) no Hoare annotation was computed. [2018-11-18 15:58:04,187 INFO L425 ceAbstractionStarter]: For program point L300-1(lines 289 305) no Hoare annotation was computed. [2018-11-18 15:58:04,187 INFO L421 ceAbstractionStarter]: At program point activatePumpENTRY(lines 289 305) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 15:58:04,188 INFO L425 ceAbstractionStarter]: For program point L296(lines 296 302) no Hoare annotation was computed. [2018-11-18 15:58:04,188 INFO L421 ceAbstractionStarter]: At program point L294(line 294) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (= 0 ~pumpRunning~0))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 15:58:04,188 INFO L425 ceAbstractionStarter]: For program point L294-1(line 294) no Hoare annotation was computed. [2018-11-18 15:58:04,188 INFO L428 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 469 477) the Hoare annotation is: true [2018-11-18 15:58:04,188 INFO L425 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 469 477) no Hoare annotation was computed. [2018-11-18 15:58:04,188 INFO L425 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 469 477) no Hoare annotation was computed. [2018-11-18 15:58:04,188 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 370 388) no Hoare annotation was computed. [2018-11-18 15:58:04,188 INFO L425 ceAbstractionStarter]: For program point L379(lines 379 383) no Hoare annotation was computed. [2018-11-18 15:58:04,188 INFO L428 ceAbstractionStarter]: At program point L377(line 377) the Hoare annotation is: true [2018-11-18 15:58:04,188 INFO L425 ceAbstractionStarter]: For program point L379-2(lines 379 383) no Hoare annotation was computed. [2018-11-18 15:58:04,188 INFO L425 ceAbstractionStarter]: For program point L377-1(line 377) no Hoare annotation was computed. [2018-11-18 15:58:04,188 INFO L428 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 370 388) the Hoare annotation is: true [2018-11-18 15:58:04,188 INFO L425 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 370 388) no Hoare annotation was computed. [2018-11-18 15:58:04,188 INFO L425 ceAbstractionStarter]: For program point L429-1(lines 425 436) no Hoare annotation was computed. [2018-11-18 15:58:04,189 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 425 436) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (= ~methaneLevelCritical~0 1))) (and (or .cse0 .cse1 (not (= 1 ~pumpRunning~0)) .cse2) (or .cse3 .cse2 (= ~methaneLevelCritical~0 0) (not (= |old(~methaneLevelCritical~0)| 0))) (or .cse0 .cse3 .cse2 .cse1))) [2018-11-18 15:58:04,189 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 425 436) no Hoare annotation was computed. [2018-11-18 15:58:04,189 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 437 445) the Hoare annotation is: true [2018-11-18 15:58:04,189 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 437 445) no Hoare annotation was computed. [2018-11-18 15:58:04,189 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 437 445) no Hoare annotation was computed. [2018-11-18 15:58:04,189 INFO L421 ceAbstractionStarter]: At program point timeShiftENTRY(lines 223 246) the Hoare annotation is: (let ((.cse10 (= ~waterLevel~0 2))) (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not .cse10)) (.cse5 (= 0 ~pumpRunning~0)) (.cse2 (= 1 ~waterLevel~0)) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse8 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse9 (not (= ~methaneLevelCritical~0 0))) (.cse6 (= |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse5) (or .cse6 .cse7 .cse8 .cse3) (or .cse0 .cse6 .cse1 .cse3 .cse7) (or .cse6 .cse1 .cse3 .cse9 (and .cse7 .cse5)) (or .cse1 .cse2 .cse3 .cse4 .cse9) (or .cse2 .cse8 .cse3 .cse4) (or .cse8 .cse3 (= ~pumpRunning~0 1)) (or .cse1 (and .cse10 (= ~pumpRunning~0 0)) .cse3 .cse9 (not .cse6))))) [2018-11-18 15:58:04,189 INFO L421 ceAbstractionStarter]: At program point L236(line 236) the Hoare annotation is: (let ((.cse9 (= ~waterLevel~0 2))) (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not .cse9)) (.cse5 (= 0 ~pumpRunning~0)) (.cse2 (= 1 ~waterLevel~0)) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse8 (not (= ~methaneLevelCritical~0 0))) (.cse6 (= |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse5) (or .cse0 .cse6 .cse1 .cse3 .cse7) (or .cse6 .cse1 .cse3 .cse8 (and .cse7 .cse5)) (or .cse1 .cse2 .cse3 .cse4 .cse8) (or (not (= 1 |old(~pumpRunning~0)|)) .cse3 (= ~pumpRunning~0 1)) (or .cse1 (and .cse9 (= ~pumpRunning~0 0)) .cse3 .cse8 (not .cse6))))) [2018-11-18 15:58:04,189 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 223 246) no Hoare annotation was computed. [2018-11-18 15:58:04,189 INFO L421 ceAbstractionStarter]: At program point L234(lines 234 240) the Hoare annotation is: (let ((.cse2 (= 1 ~waterLevel~0)) (.cse4 (not (= |old(~waterLevel~0)| 1))) (.cse7 (= |old(~waterLevel~0)| 2)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse8 (not (= ~waterLevel~0 2))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (= ~pumpRunning~0 1)) (.cse3 (not (= ~systemActive~0 1))) (.cse9 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse3 .cse6 (not .cse7)) (or .cse0 .cse7 .cse1 .cse8 .cse3) (or .cse1 .cse2 .cse3 .cse4 .cse6) (or (not (= 1 |old(~pumpRunning~0)|)) .cse3 .cse5) (or (and .cse8 .cse5) .cse7 .cse1 .cse3 .cse6 (and .cse8 .cse9)) (or .cse0 .cse1 .cse5 .cse3 .cse9))) [2018-11-18 15:58:04,190 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 223 246) no Hoare annotation was computed. [2018-11-18 15:58:04,190 INFO L421 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1) (or .cse2 .cse1 (= ~pumpRunning~0 1)) (or .cse2 .cse1 (not (= |old(~waterLevel~0)| 1)) (= 1 ~waterLevel~0)))) [2018-11-18 15:58:04,190 INFO L425 ceAbstractionStarter]: For program point L227(lines 226 245) no Hoare annotation was computed. [2018-11-18 15:58:04,190 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2018-11-18 15:58:04,190 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 60) no Hoare annotation was computed. [2018-11-18 15:58:04,190 INFO L428 ceAbstractionStarter]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2018-11-18 15:58:04,190 INFO L425 ceAbstractionStarter]: For program point L52-1(lines 52 66) no Hoare annotation was computed. [2018-11-18 15:58:04,190 INFO L428 ceAbstractionStarter]: At program point L52-3(lines 52 66) the Hoare annotation is: true [2018-11-18 15:58:04,190 INFO L428 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: true [2018-11-18 15:58:04,190 INFO L425 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2018-11-18 15:58:04,190 INFO L428 ceAbstractionStarter]: At program point L67(lines 42 71) the Hoare annotation is: true [2018-11-18 15:58:04,190 INFO L425 ceAbstractionStarter]: For program point L63(line 63) no Hoare annotation was computed. [2018-11-18 15:58:04,190 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2018-11-18 15:58:04,190 INFO L425 ceAbstractionStarter]: For program point L53(line 53) no Hoare annotation was computed. [2018-11-18 15:58:04,191 INFO L421 ceAbstractionStarter]: At program point L926(line 926) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or (not (= ~methaneLevelCritical~0 1)) .cse0 .cse1) (or (= ~waterLevel~0 2) .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or (not (= 1 ~pumpRunning~0)) .cse1))) [2018-11-18 15:58:04,191 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification3_spec__1EXIT(lines 903 935) no Hoare annotation was computed. [2018-11-18 15:58:04,191 INFO L425 ceAbstractionStarter]: For program point L922(lines 922 928) no Hoare annotation was computed. [2018-11-18 15:58:04,191 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification3_spec__1ENTRY(lines 903 935) the Hoare annotation is: true [2018-11-18 15:58:04,191 INFO L421 ceAbstractionStarter]: At program point L920(line 920) the Hoare annotation is: (let ((.cse1 (not (= 1 ~pumpRunning~0))) (.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse3 (= ~waterLevel~0 2)) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse2 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2) (or .cse0 .cse4 .cse2) (or .cse3 .cse4 .cse2 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 15:58:04,191 INFO L425 ceAbstractionStarter]: For program point L920-1(line 920) no Hoare annotation was computed. [2018-11-18 15:58:04,191 INFO L425 ceAbstractionStarter]: For program point L918(lines 918 931) no Hoare annotation was computed. [2018-11-18 15:58:04,191 INFO L425 ceAbstractionStarter]: For program point L918-1(lines 903 935) no Hoare annotation was computed. [2018-11-18 15:58:04,191 INFO L421 ceAbstractionStarter]: At program point L916(line 916) the Hoare annotation is: (let ((.cse0 (not (= ~methaneLevelCritical~0 1))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 (not (= 1 ~pumpRunning~0)) .cse1) (or .cse0 (not (= 0 ~pumpRunning~0)) .cse1))) [2018-11-18 15:58:04,191 INFO L425 ceAbstractionStarter]: For program point L916-1(line 916) no Hoare annotation was computed. [2018-11-18 15:58:04,191 INFO L425 ceAbstractionStarter]: For program point L912(lines 912 932) no Hoare annotation was computed. [2018-11-18 15:58:04,191 INFO L428 ceAbstractionStarter]: At program point L910(line 910) the Hoare annotation is: true [2018-11-18 15:58:04,191 INFO L425 ceAbstractionStarter]: For program point L910-1(line 910) no Hoare annotation was computed. [2018-11-18 15:58:04,192 INFO L421 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 401 412) the Hoare annotation is: (or (not (= 1 ~pumpRunning~0)) (not (= ~systemActive~0 1)) (= 1 ~waterLevel~0) (not (= |old(~waterLevel~0)| 1))) [2018-11-18 15:58:04,192 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 401 412) no Hoare annotation was computed. [2018-11-18 15:58:04,192 INFO L425 ceAbstractionStarter]: For program point L405-1(lines 401 412) no Hoare annotation was computed. [2018-11-18 15:58:04,192 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2018-11-18 15:58:04,192 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2018-11-18 15:58:04,192 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:58:04,192 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~waterLevel~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0) (= ~systemActive~0 1)) [2018-11-18 15:58:04,192 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:58:04,192 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:58:04,192 INFO L425 ceAbstractionStarter]: For program point startSystemEXIT(lines 389 396) no Hoare annotation was computed. [2018-11-18 15:58:04,192 INFO L421 ceAbstractionStarter]: At program point startSystemENTRY(lines 389 396) the Hoare annotation is: (let ((.cse2 (not (= 0 ~pumpRunning~0))) (.cse1 (= ~systemActive~0 1)) (.cse0 (not (= |old(~systemActive~0)| 1)))) (and (or (not (= 1 ~pumpRunning~0)) .cse0 .cse1) (or (not (= ~methaneLevelCritical~0 1)) .cse2 .cse0 .cse1) (or .cse2 .cse1 .cse0 (not (= ~methaneLevelCritical~0 0))))) [2018-11-18 15:58:04,192 INFO L425 ceAbstractionStarter]: For program point startSystemFINAL(lines 389 396) no Hoare annotation was computed. [2018-11-18 15:58:04,192 INFO L425 ceAbstractionStarter]: For program point L417-1(lines 413 424) no Hoare annotation was computed. [2018-11-18 15:58:04,192 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 413 424) no Hoare annotation was computed. [2018-11-18 15:58:04,193 INFO L421 ceAbstractionStarter]: At program point waterRiseENTRY(lines 413 424) the Hoare annotation is: (let ((.cse8 (not (= 1 ~pumpRunning~0))) (.cse6 (= |old(~waterLevel~0)| 2)) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse7 (not (= ~waterLevel~0 2))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (= 1 ~waterLevel~0)) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse6 .cse0 .cse2 .cse7) (or .cse1 .cse8 .cse2 .cse3) (or .cse6 .cse7 .cse8 .cse2) (or .cse6 .cse0 .cse2 .cse4 .cse7) (or .cse5 .cse0 .cse1 .cse2 .cse3))) [2018-11-18 15:58:04,193 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 493 500) no Hoare annotation was computed. [2018-11-18 15:58:04,193 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 497) no Hoare annotation was computed. [2018-11-18 15:58:04,193 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 493 500) the Hoare annotation is: true [2018-11-18 15:58:04,193 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 493 500) no Hoare annotation was computed. [2018-11-18 15:58:04,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:58:04 BoogieIcfgContainer [2018-11-18 15:58:04,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:58:04,203 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:58:04,203 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:58:04,204 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:58:04,204 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:57:54" (3/4) ... [2018-11-18 15:58:04,207 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-11-18 15:58:04,212 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump__wrappee__highWaterSensor [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification3_spec__1 [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-11-18 15:58:04,213 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-11-18 15:58:04,214 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure startSystem [2018-11-18 15:58:04,214 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-11-18 15:58:04,214 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-11-18 15:58:04,220 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 39 nodes and edges [2018-11-18 15:58:04,220 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2018-11-18 15:58:04,220 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 15:58:04,243 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(waterLevel == 2) && 0 == methaneLevelCritical) && 0 == pumpRunning) && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (((0 == pumpRunning && methaneLevelCritical == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((pumpRunning == 1 && systemActive == 1) && splverifierCounter == 0) [2018-11-18 15:58:04,244 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-11-18 15:58:04,280 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a377aa0f-83f8-46f3-bd31-0299ddd25e2b/bin-2019/utaipan/witness.graphml [2018-11-18 15:58:04,280 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:58:04,280 INFO L168 Benchmark]: Toolchain (without parser) took 11080.29 ms. Allocated memory was 1.0 GB in the beginning and 1.7 GB in the end (delta: 626.5 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -146.2 MB). Peak memory consumption was 480.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:58:04,281 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:58:04,281 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:58:04,281 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:58:04,281 INFO L168 Benchmark]: Boogie Preprocessor took 28.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:58:04,281 INFO L168 Benchmark]: RCFGBuilder took 449.78 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: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:58:04,282 INFO L168 Benchmark]: TraceAbstraction took 10109.68 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 473.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -30.1 MB). Peak memory consumption was 562.0 MB. Max. memory is 11.5 GB. [2018-11-18 15:58:04,282 INFO L168 Benchmark]: Witness Printer took 76.39 ms. Allocated memory is still 1.7 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 596.5 kB). Peak memory consumption was 596.5 kB. Max. memory is 11.5 GB. [2018-11-18 15:58:04,283 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 956.4 MB in the beginning and 1.1 GB in the end (delta: -183.8 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.14 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 28.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 449.78 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: 63.7 MB). Peak memory consumption was 63.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10109.68 ms. Allocated memory was 1.2 GB in the beginning and 1.7 GB in the end (delta: 473.4 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -30.1 MB). Peak memory consumption was 562.0 MB. Max. memory is 11.5 GB. * Witness Printer took 76.39 ms. Allocated memory is still 1.7 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 596.5 kB). Peak memory consumption was 596.5 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 497]: 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: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (((((((((!(waterLevel == 2) && 0 == methaneLevelCritical) && 0 == pumpRunning) && systemActive == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || (((0 == pumpRunning && methaneLevelCritical == 1) && systemActive == 1) && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(waterLevel) == 1)) || !(\old(methaneLevelCritical) == 0)) || ((pumpRunning == 1 && systemActive == 1) && splverifierCounter == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 142 locations, 1 error locations. SAFE Result, 10.0s OverallTime, 12 OverallIterations, 3 TraceHistogramMax, 3.5s AutomataDifference, 0.0s DeadEndRemovalTime, 2.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1890 SDtfs, 891 SDslu, 6729 SDs, 0 SdLazy, 1198 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 519 GetRequests, 407 SyntacticMatches, 6 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1021occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.0s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9966675141730991 AbsIntWeakeningRatio, 1.1666666666666667 AbsIntAvgWeakeningVarsNumRemoved, 80.83333333333333 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 82 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 58 LocationsWithAnnotation, 1777 PreInvPairs, 1916 NumberOfFragments, 1791 HoareAnnotationTreeSize, 1777 FomulaSimplifications, 2134 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 58 FomulaSimplificationsInter, 10006 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1171 NumberOfCodeBlocks, 1171 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1309 ConstructedInterpolants, 0 QuantifiedInterpolants, 214492 SizeOfPredicates, 3 NumberOfNonLiveVariables, 793 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 153/159 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...