./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product23_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product23_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/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 eb835625053b28be1502d008fc964b9382c39b0e ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 14:49:13,630 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 14:49:13,631 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 14:49:13,637 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 14:49:13,637 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 14:49:13,638 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 14:49:13,639 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 14:49:13,640 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 14:49:13,641 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 14:49:13,642 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 14:49:13,642 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 14:49:13,643 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 14:49:13,643 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 14:49:13,644 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 14:49:13,645 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 14:49:13,645 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 14:49:13,646 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 14:49:13,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 14:49:13,648 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 14:49:13,650 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 14:49:13,650 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 14:49:13,651 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 14:49:13,653 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 14:49:13,653 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 14:49:13,653 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 14:49:13,653 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 14:49:13,654 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 14:49:13,655 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 14:49:13,655 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 14:49:13,656 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 14:49:13,656 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 14:49:13,656 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 14:49:13,656 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 14:49:13,656 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 14:49:13,657 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 14:49:13,657 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 14:49:13,657 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 14:49:13,667 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 14:49:13,667 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 14:49:13,668 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 14:49:13,668 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 14:49:13,668 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 14:49:13,668 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 14:49:13,668 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 14:49:13,668 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 14:49:13,668 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 14:49:13,668 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 14:49:13,669 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 14:49:13,669 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 14:49:13,669 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 14:49:13,669 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 14:49:13,670 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 14:49:13,670 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 14:49:13,670 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 14:49:13,670 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 14:49:13,670 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 14:49:13,670 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 14:49:13,670 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 14:49:13,670 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 14:49:13,671 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 14:49:13,671 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 14:49:13,671 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 14:49:13,671 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 14:49:13,671 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 14:49:13,671 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 14:49:13,671 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 14:49:13,672 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 14:49:13,672 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 14:49:13,672 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 14:49:13,672 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 14:49:13,672 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 14:49:13,672 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 14:49:13,672 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 14:49:13,672 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_5da252bb-7dc9-47be-ade8-bb223cda1fac/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 -> eb835625053b28be1502d008fc964b9382c39b0e [2018-12-08 14:49:13,696 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 14:49:13,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 14:49:13,708 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 14:49:13,709 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 14:49:13,710 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 14:49:13,710 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product23_false-unreach-call_false-termination.cil.c [2018-12-08 14:49:13,746 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/data/b74ed8c63/49875eeabfb54f77824b3b55c66c8878/FLAG6dc61922c [2018-12-08 14:49:14,179 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 14:49:14,179 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/sv-benchmarks/c/product-lines/minepump_spec3_product23_false-unreach-call_false-termination.cil.c [2018-12-08 14:49:14,186 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/data/b74ed8c63/49875eeabfb54f77824b3b55c66c8878/FLAG6dc61922c [2018-12-08 14:49:14,194 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/data/b74ed8c63/49875eeabfb54f77824b3b55c66c8878 [2018-12-08 14:49:14,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 14:49:14,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 14:49:14,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 14:49:14,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 14:49:14,199 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 14:49:14,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,201 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14, skipping insertion in model container [2018-12-08 14:49:14,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 14:49:14,226 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 14:49:14,374 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 14:49:14,414 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 14:49:14,462 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 14:49:14,476 INFO L195 MainTranslator]: Completed translation [2018-12-08 14:49:14,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14 WrapperNode [2018-12-08 14:49:14,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 14:49:14,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 14:49:14,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 14:49:14,477 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 14:49:14,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 14:49:14,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 14:49:14,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 14:49:14,496 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 14:49:14,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,504 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,504 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (1/1) ... [2018-12-08 14:49:14,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 14:49:14,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 14:49:14,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 14:49:14,518 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 14:49:14,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 14:49:14,552 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-08 14:49:14,552 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-08 14:49:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 14:49:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 14:49:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-08 14:49:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-08 14:49:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-08 14:49:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-08 14:49:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 14:49:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-08 14:49:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-08 14:49:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-08 14:49:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-08 14:49:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-08 14:49:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-08 14:49:14,553 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-08 14:49:14,553 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-08 14:49:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-08 14:49:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-08 14:49:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-08 14:49:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-08 14:49:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-08 14:49:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-08 14:49:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-08 14:49:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-08 14:49:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-08 14:49:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-08 14:49:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-08 14:49:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-08 14:49:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-08 14:49:14,554 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-08 14:49:14,554 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-08 14:49:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-08 14:49:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-08 14:49:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-08 14:49:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-08 14:49:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-08 14:49:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-08 14:49:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-08 14:49:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-08 14:49:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-08 14:49:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-08 14:49:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-08 14:49:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-08 14:49:14,555 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-08 14:49:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 14:49:14,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 14:49:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 14:49:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-08 14:49:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-08 14:49:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-12-08 14:49:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-12-08 14:49:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-08 14:49:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-08 14:49:14,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 14:49:14,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 14:49:14,846 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 14:49:14,847 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 14:49:14,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:49:14 BoogieIcfgContainer [2018-12-08 14:49:14,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 14:49:14,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 14:49:14,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 14:49:14,849 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 14:49:14,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 02:49:14" (1/3) ... [2018-12-08 14:49:14,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20057ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 02:49:14, skipping insertion in model container [2018-12-08 14:49:14,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 02:49:14" (2/3) ... [2018-12-08 14:49:14,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20057ee2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 02:49:14, skipping insertion in model container [2018-12-08 14:49:14,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:49:14" (3/3) ... [2018-12-08 14:49:14,851 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product23_false-unreach-call_false-termination.cil.c [2018-12-08 14:49:14,857 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 14:49:14,862 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 14:49:14,870 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 14:49:14,889 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 14:49:14,889 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 14:49:14,889 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 14:49:14,889 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 14:49:14,889 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 14:49:14,889 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 14:49:14,889 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 14:49:14,889 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 14:49:14,900 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states. [2018-12-08 14:49:14,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-08 14:49:14,906 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:49:14,906 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:49:14,908 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:49:14,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:49:14,911 INFO L82 PathProgramCache]: Analyzing trace with hash 436261763, now seen corresponding path program 1 times [2018-12-08 14:49:14,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:49:14,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:49:14,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:49:14,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:49:14,940 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:49:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:49:15,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 14:49:15,050 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 14:49:15,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 14:49:15,051 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 14:49:15,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 14:49:15,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 14:49:15,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 14:49:15,063 INFO L87 Difference]: Start difference. First operand 144 states. Second operand 2 states. [2018-12-08 14:49:15,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:49:15,085 INFO L93 Difference]: Finished difference Result 262 states and 329 transitions. [2018-12-08 14:49:15,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 14:49:15,086 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-12-08 14:49:15,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:49:15,093 INFO L225 Difference]: With dead ends: 262 [2018-12-08 14:49:15,093 INFO L226 Difference]: Without dead ends: 131 [2018-12-08 14:49:15,095 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 14:49:15,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2018-12-08 14:49:15,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2018-12-08 14:49:15,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2018-12-08 14:49:15,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 156 transitions. [2018-12-08 14:49:15,126 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 156 transitions. Word has length 52 [2018-12-08 14:49:15,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:49:15,126 INFO L480 AbstractCegarLoop]: Abstraction has 131 states and 156 transitions. [2018-12-08 14:49:15,126 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 14:49:15,126 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 156 transitions. [2018-12-08 14:49:15,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-08 14:49:15,128 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:49:15,128 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:49:15,128 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:49:15,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:49:15,129 INFO L82 PathProgramCache]: Analyzing trace with hash -608253782, now seen corresponding path program 1 times [2018-12-08 14:49:15,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:49:15,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:49:15,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:49:15,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:49:15,130 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:49:15,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:49:15,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 14:49:15,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 14:49:15,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 14:49:15,188 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 14:49:15,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 14:49:15,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 14:49:15,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 14:49:15,189 INFO L87 Difference]: Start difference. First operand 131 states and 156 transitions. Second operand 3 states. [2018-12-08 14:49:15,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:49:15,201 INFO L93 Difference]: Finished difference Result 205 states and 243 transitions. [2018-12-08 14:49:15,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 14:49:15,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-12-08 14:49:15,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:49:15,203 INFO L225 Difference]: With dead ends: 205 [2018-12-08 14:49:15,203 INFO L226 Difference]: Without dead ends: 122 [2018-12-08 14:49:15,204 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 14:49:15,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2018-12-08 14:49:15,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2018-12-08 14:49:15,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2018-12-08 14:49:15,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 144 transitions. [2018-12-08 14:49:15,211 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 144 transitions. Word has length 53 [2018-12-08 14:49:15,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:49:15,212 INFO L480 AbstractCegarLoop]: Abstraction has 122 states and 144 transitions. [2018-12-08 14:49:15,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 14:49:15,212 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 144 transitions. [2018-12-08 14:49:15,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-08 14:49:15,213 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:49:15,213 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:49:15,213 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:49:15,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:49:15,213 INFO L82 PathProgramCache]: Analyzing trace with hash 494816809, now seen corresponding path program 1 times [2018-12-08 14:49:15,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:49:15,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:49:15,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:49:15,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:49:15,214 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:49:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:49:15,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 14:49:15,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 14:49:15,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 14:49:15,297 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 14:49:15,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 14:49:15,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 14:49:15,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 14:49:15,298 INFO L87 Difference]: Start difference. First operand 122 states and 144 transitions. Second operand 7 states. [2018-12-08 14:49:15,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:49:15,538 INFO L93 Difference]: Finished difference Result 374 states and 457 transitions. [2018-12-08 14:49:15,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 14:49:15,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-12-08 14:49:15,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:49:15,540 INFO L225 Difference]: With dead ends: 374 [2018-12-08 14:49:15,540 INFO L226 Difference]: Without dead ends: 276 [2018-12-08 14:49:15,541 INFO L631 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 [2018-12-08 14:49:15,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2018-12-08 14:49:15,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 268. [2018-12-08 14:49:15,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2018-12-08 14:49:15,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 327 transitions. [2018-12-08 14:49:15,559 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 327 transitions. Word has length 57 [2018-12-08 14:49:15,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:49:15,560 INFO L480 AbstractCegarLoop]: Abstraction has 268 states and 327 transitions. [2018-12-08 14:49:15,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 14:49:15,560 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 327 transitions. [2018-12-08 14:49:15,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-08 14:49:15,562 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:49:15,562 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:49:15,562 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:49:15,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:49:15,562 INFO L82 PathProgramCache]: Analyzing trace with hash -2106330872, now seen corresponding path program 1 times [2018-12-08 14:49:15,562 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:49:15,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:49:15,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:49:15,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:49:15,563 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:49:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 14:49:15,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 14:49:15,637 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 14:49:15,637 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-08 14:49:15,637 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 14:49:15,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-08 14:49:15,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-08 14:49:15,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-08 14:49:15,638 INFO L87 Difference]: Start difference. First operand 268 states and 327 transitions. Second operand 6 states. [2018-12-08 14:49:15,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 14:49:15,763 INFO L93 Difference]: Finished difference Result 729 states and 927 transitions. [2018-12-08 14:49:15,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 14:49:15,764 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2018-12-08 14:49:15,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 14:49:15,767 INFO L225 Difference]: With dead ends: 729 [2018-12-08 14:49:15,768 INFO L226 Difference]: Without dead ends: 485 [2018-12-08 14:49:15,769 INFO L631 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 [2018-12-08 14:49:15,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2018-12-08 14:49:15,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 479. [2018-12-08 14:49:15,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-12-08 14:49:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 596 transitions. [2018-12-08 14:49:15,806 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 596 transitions. Word has length 63 [2018-12-08 14:49:15,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 14:49:15,806 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 596 transitions. [2018-12-08 14:49:15,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-08 14:49:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 596 transitions. [2018-12-08 14:49:15,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-08 14:49:15,809 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 14:49:15,809 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 14:49:15,809 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 14:49:15,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 14:49:15,809 INFO L82 PathProgramCache]: Analyzing trace with hash -400582226, now seen corresponding path program 1 times [2018-12-08 14:49:15,810 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 14:49:15,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:49:15,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 14:49:15,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 14:49:15,810 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 14:49:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 14:49:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 14:49:15,921 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 14:49:16,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 02:49:16 BoogieIcfgContainer [2018-12-08 14:49:16,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 14:49:16,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 14:49:16,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 14:49:16,009 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 14:49:16,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 02:49:14" (3/4) ... [2018-12-08 14:49:16,012 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 14:49:16,106 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_5da252bb-7dc9-47be-ade8-bb223cda1fac/bin-2019/utaipan/witness.graphml [2018-12-08 14:49:16,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 14:49:16,107 INFO L168 Benchmark]: Toolchain (without parser) took 1910.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.0 MB in the beginning and 829.8 MB in the end (delta: 117.2 MB). Peak memory consumption was 255.1 MB. Max. memory is 11.5 GB. [2018-12-08 14:49:16,108 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:49:16,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-08 14:49:16,108 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:49:16,109 INFO L168 Benchmark]: Boogie Preprocessor took 21.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 14:49:16,109 INFO L168 Benchmark]: RCFGBuilder took 329.45 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: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. [2018-12-08 14:49:16,109 INFO L168 Benchmark]: TraceAbstraction took 1161.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 850.4 MB in the end (delta: 224.4 MB). Peak memory consumption was 224.4 MB. Max. memory is 11.5 GB. [2018-12-08 14:49:16,109 INFO L168 Benchmark]: Witness Printer took 97.22 ms. Allocated memory is still 1.2 GB. Free memory was 850.4 MB in the beginning and 829.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2018-12-08 14:49:16,111 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 279.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -175.0 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.06 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 21.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 329.45 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: 47.2 MB). Peak memory consumption was 47.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1161.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 850.4 MB in the end (delta: 224.4 MB). Peak memory consumption was 224.4 MB. Max. memory is 11.5 GB. * Witness Printer took 97.22 ms. Allocated memory is still 1.2 GB. Free memory was 850.4 MB in the beginning and 829.8 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 541]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L177] int pumpRunning = 0; [L178] int systemActive = 1; [L438] int cleanupTimeShifts = 4; [L715] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L514] int retValue_acc ; [L515] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L519] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L520] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L521] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L938] int retValue_acc ; [L941] retValue_acc = 1 [L942] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L521] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L521] tmp = valid_product() [L523] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L525] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L526] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L505] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L372] int splverifierCounter ; [L373] int tmp ; [L374] int tmp___0 ; [L375] int tmp___1 ; [L376] int tmp___2 ; [L379] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L381] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L383] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L389] tmp = __VERIFIER_nondet_int() [L391] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L393] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L393] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L399] tmp___0 = __VERIFIER_nondet_int() [L401] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L409] tmp___2 = __VERIFIER_nondet_int() [L411] COND FALSE !(\read(tmp___2)) [L415] tmp___1 = __VERIFIER_nondet_int() [L417] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L419] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L358] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L365] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L419] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L426] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L184] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L191] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L199] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L139] int tmp ; [L140] int tmp___0 ; [L141] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L145] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L145] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L145] tmp = isMethaneLevelCritical() [L147] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L151] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L151] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L151] tmp___0 = getWaterLevel() [L153] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L155] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L291] int retValue_acc ; [L294] retValue_acc = pumpRunning [L295] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L155] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L155] tmp___1 = isPumpRunning() [L157] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L161] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L541] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 144 locations, 1 error locations. UNSAFE Result, 1.1s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 665 SDtfs, 342 SDslu, 1302 SDs, 0 SdLazy, 305 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=479occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 20709 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...