./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product12_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_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product12_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/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 a45474bbddd00a02338fe4b16e46d3dadff1b340 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-02 22:06:45,711 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 22:06:45,712 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 22:06:45,718 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 22:06:45,718 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 22:06:45,719 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 22:06:45,720 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 22:06:45,721 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 22:06:45,721 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 22:06:45,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 22:06:45,722 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 22:06:45,722 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 22:06:45,723 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 22:06:45,723 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 22:06:45,724 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 22:06:45,724 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 22:06:45,725 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 22:06:45,726 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 22:06:45,727 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 22:06:45,727 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 22:06:45,728 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 22:06:45,729 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 22:06:45,730 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 22:06:45,730 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 22:06:45,730 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 22:06:45,730 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 22:06:45,731 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 22:06:45,731 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 22:06:45,732 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 22:06:45,732 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 22:06:45,732 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 22:06:45,733 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 22:06:45,733 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 22:06:45,733 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 22:06:45,733 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 22:06:45,734 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 22:06:45,734 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 22:06:45,741 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 22:06:45,741 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 22:06:45,742 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 22:06:45,742 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 22:06:45,742 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 22:06:45,742 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 22:06:45,742 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 22:06:45,742 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 22:06:45,742 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 22:06:45,743 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 22:06:45,743 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 22:06:45,743 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 22:06:45,743 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 22:06:45,743 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 22:06:45,743 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 22:06:45,743 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 22:06:45,743 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 22:06:45,744 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 22:06:45,744 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 22:06:45,744 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 22:06:45,744 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 22:06:45,744 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 22:06:45,744 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 22:06:45,744 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 22:06:45,744 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 22:06:45,744 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 22:06:45,744 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 22:06:45,744 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 22:06:45,745 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 22:06:45,745 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 22:06:45,745 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 22:06:45,745 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 22:06:45,745 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 22:06:45,745 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 22:06:45,745 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 22:06:45,745 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 22:06:45,745 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_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/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 -> a45474bbddd00a02338fe4b16e46d3dadff1b340 [2018-12-02 22:06:45,763 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 22:06:45,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 22:06:45,772 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 22:06:45,773 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 22:06:45,773 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 22:06:45,773 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product12_false-unreach-call_false-termination.cil.c [2018-12-02 22:06:45,807 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/data/44dfc10f7/0aad7818108648cfb2bc8bf844a54632/FLAG10deb71c9 [2018-12-02 22:06:46,215 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 22:06:46,216 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/sv-benchmarks/c/product-lines/minepump_spec3_product12_false-unreach-call_false-termination.cil.c [2018-12-02 22:06:46,221 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/data/44dfc10f7/0aad7818108648cfb2bc8bf844a54632/FLAG10deb71c9 [2018-12-02 22:06:46,229 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/data/44dfc10f7/0aad7818108648cfb2bc8bf844a54632 [2018-12-02 22:06:46,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 22:06:46,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 22:06:46,232 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 22:06:46,232 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 22:06:46,234 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 22:06:46,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c0e1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46, skipping insertion in model container [2018-12-02 22:06:46,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,240 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 22:06:46,259 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 22:06:46,403 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:06:46,443 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 22:06:46,484 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:06:46,498 INFO L195 MainTranslator]: Completed translation [2018-12-02 22:06:46,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46 WrapperNode [2018-12-02 22:06:46,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 22:06:46,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 22:06:46,499 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 22:06:46,500 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 22:06:46,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,514 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 22:06:46,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 22:06:46,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 22:06:46,519 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 22:06:46,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,527 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (1/1) ... [2018-12-02 22:06:46,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 22:06:46,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 22:06:46,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 22:06:46,540 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 22:06:46,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/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 [2018-12-02 22:06:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 22:06:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 22:06:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 22:06:46,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 22:06:46,575 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-02 22:06:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-02 22:06:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 22:06:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 22:06:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 22:06:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 22:06:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 22:06:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 22:06:46,576 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 22:06:46,576 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 22:06:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 22:06:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 22:06:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 22:06:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 22:06:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 22:06:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 22:06:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 22:06:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 22:06:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 22:06:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-02 22:06:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-02 22:06:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 22:06:46,577 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 22:06:46,577 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 22:06:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 22:06:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 22:06:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 22:06:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 22:06:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 22:06:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 22:06:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 22:06:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 22:06:46,578 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 22:06:46,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 22:06:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 22:06:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 22:06:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 22:06:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 22:06:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-12-02 22:06:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-12-02 22:06:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 22:06:46,579 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 22:06:46,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 22:06:46,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 22:06:46,887 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 22:06:46,887 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 22:06:46,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:46 BoogieIcfgContainer [2018-12-02 22:06:46,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 22:06:46,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 22:06:46,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 22:06:46,890 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 22:06:46,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:06:46" (1/3) ... [2018-12-02 22:06:46,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c13d0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:06:46, skipping insertion in model container [2018-12-02 22:06:46,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:06:46" (2/3) ... [2018-12-02 22:06:46,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c13d0cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:06:46, skipping insertion in model container [2018-12-02 22:06:46,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:46" (3/3) ... [2018-12-02 22:06:46,893 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12_false-unreach-call_false-termination.cil.c [2018-12-02 22:06:46,900 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 22:06:46,905 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 22:06:46,914 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 22:06:46,933 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 22:06:46,933 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 22:06:46,934 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 22:06:46,934 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 22:06:46,934 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 22:06:46,934 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 22:06:46,934 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 22:06:46,934 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 22:06:46,948 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2018-12-02 22:06:46,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-02 22:06:46,954 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:46,954 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] [2018-12-02 22:06:46,956 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:46,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:46,960 INFO L82 PathProgramCache]: Analyzing trace with hash 716470641, now seen corresponding path program 1 times [2018-12-02 22:06:46,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:46,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:46,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:46,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:46,989 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:47,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:06:47,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:06:47,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 22:06:47,098 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:47,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 22:06:47,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 22:06:47,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 22:06:47,109 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2018-12-02 22:06:47,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:47,128 INFO L93 Difference]: Finished difference Result 200 states and 247 transitions. [2018-12-02 22:06:47,128 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 22:06:47,129 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-12-02 22:06:47,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:47,136 INFO L225 Difference]: With dead ends: 200 [2018-12-02 22:06:47,136 INFO L226 Difference]: Without dead ends: 100 [2018-12-02 22:06:47,138 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 [2018-12-02 22:06:47,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2018-12-02 22:06:47,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2018-12-02 22:06:47,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2018-12-02 22:06:47,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2018-12-02 22:06:47,166 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2018-12-02 22:06:47,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:47,166 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2018-12-02 22:06:47,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 22:06:47,166 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2018-12-02 22:06:47,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-02 22:06:47,168 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:47,168 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] [2018-12-02 22:06:47,168 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:47,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:47,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1386636677, now seen corresponding path program 1 times [2018-12-02 22:06:47,168 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:47,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:47,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:47,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:47,169 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:47,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:06:47,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:06:47,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 22:06:47,230 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:47,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 22:06:47,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 22:06:47,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 22:06:47,232 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 3 states. [2018-12-02 22:06:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:47,246 INFO L93 Difference]: Finished difference Result 136 states and 155 transitions. [2018-12-02 22:06:47,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 22:06:47,246 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-12-02 22:06:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:47,248 INFO L225 Difference]: With dead ends: 136 [2018-12-02 22:06:47,248 INFO L226 Difference]: Without dead ends: 91 [2018-12-02 22:06:47,249 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 [2018-12-02 22:06:47,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-12-02 22:06:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-12-02 22:06:47,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-02 22:06:47,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2018-12-02 22:06:47,258 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 53 [2018-12-02 22:06:47,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:47,258 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2018-12-02 22:06:47,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 22:06:47,258 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2018-12-02 22:06:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-02 22:06:47,259 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:47,259 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] [2018-12-02 22:06:47,260 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:47,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:47,260 INFO L82 PathProgramCache]: Analyzing trace with hash 2135766962, now seen corresponding path program 1 times [2018-12-02 22:06:47,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:47,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:47,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:47,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:47,261 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:47,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:06:47,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:06:47,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 22:06:47,345 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:47,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 22:06:47,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 22:06:47,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 22:06:47,346 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand 7 states. [2018-12-02 22:06:47,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:47,531 INFO L93 Difference]: Finished difference Result 281 states and 336 transitions. [2018-12-02 22:06:47,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 22:06:47,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2018-12-02 22:06:47,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:47,533 INFO L225 Difference]: With dead ends: 281 [2018-12-02 22:06:47,533 INFO L226 Difference]: Without dead ends: 214 [2018-12-02 22:06:47,533 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 [2018-12-02 22:06:47,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-12-02 22:06:47,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 190. [2018-12-02 22:06:47,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2018-12-02 22:06:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 225 transitions. [2018-12-02 22:06:47,548 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 225 transitions. Word has length 58 [2018-12-02 22:06:47,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:47,548 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 225 transitions. [2018-12-02 22:06:47,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 22:06:47,549 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 225 transitions. [2018-12-02 22:06:47,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-02 22:06:47,550 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:47,550 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] [2018-12-02 22:06:47,550 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:47,550 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:47,550 INFO L82 PathProgramCache]: Analyzing trace with hash -696909878, now seen corresponding path program 1 times [2018-12-02 22:06:47,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:47,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:47,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:47,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:47,551 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:47,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:06:47,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:06:47,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:06:47,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 22:06:47,617 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 22:06:47,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 22:06:47,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 22:06:47,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 22:06:47,617 INFO L87 Difference]: Start difference. First operand 190 states and 225 transitions. Second operand 6 states. [2018-12-02 22:06:47,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:06:47,714 INFO L93 Difference]: Finished difference Result 495 states and 621 transitions. [2018-12-02 22:06:47,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 22:06:47,714 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2018-12-02 22:06:47,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:06:47,716 INFO L225 Difference]: With dead ends: 495 [2018-12-02 22:06:47,716 INFO L226 Difference]: Without dead ends: 329 [2018-12-02 22:06:47,717 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 [2018-12-02 22:06:47,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2018-12-02 22:06:47,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 323. [2018-12-02 22:06:47,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 323 states. [2018-12-02 22:06:47,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 392 transitions. [2018-12-02 22:06:47,737 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 392 transitions. Word has length 61 [2018-12-02 22:06:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:06:47,737 INFO L480 AbstractCegarLoop]: Abstraction has 323 states and 392 transitions. [2018-12-02 22:06:47,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 22:06:47,738 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 392 transitions. [2018-12-02 22:06:47,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-12-02 22:06:47,739 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:06:47,739 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] [2018-12-02 22:06:47,740 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:06:47,740 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:06:47,740 INFO L82 PathProgramCache]: Analyzing trace with hash -55534384, now seen corresponding path program 1 times [2018-12-02 22:06:47,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 22:06:47,740 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:47,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:06:47,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:06:47,741 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 22:06:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:06:47,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 22:06:47,813 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 22:06:47,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:06:47 BoogieIcfgContainer [2018-12-02 22:06:47,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 22:06:47,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 22:06:47,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 22:06:47,877 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 22:06:47,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:06:46" (3/4) ... [2018-12-02 22:06:47,879 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 22:06:47,936 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4b73687e-4c32-40a2-a362-95a0d2e3a3f7/bin-2019/utaipan/witness.graphml [2018-12-02 22:06:47,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 22:06:47,937 INFO L168 Benchmark]: Toolchain (without parser) took 1705.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 958.0 MB in the beginning and 853.8 MB in the end (delta: 104.2 MB). Peak memory consumption was 234.8 MB. Max. memory is 11.5 GB. [2018-12-02 22:06:47,937 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:06:47,938 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-12-02 22:06:47,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.82 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. [2018-12-02 22:06:47,938 INFO L168 Benchmark]: Boogie Preprocessor took 20.78 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. [2018-12-02 22:06:47,938 INFO L168 Benchmark]: RCFGBuilder took 347.06 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. [2018-12-02 22:06:47,938 INFO L168 Benchmark]: TraceAbstraction took 988.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.7 MB in the end (delta: 198.5 MB). Peak memory consumption was 198.5 MB. Max. memory is 11.5 GB. [2018-12-02 22:06:47,938 INFO L168 Benchmark]: Witness Printer took 59.14 ms. Allocated memory is still 1.2 GB. Free memory was 874.7 MB in the beginning and 853.8 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. [2018-12-02 22:06:47,940 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -156.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.82 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 20.78 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 347.06 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 988.83 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 874.7 MB in the end (delta: 198.5 MB). Peak memory consumption was 198.5 MB. Max. memory is 11.5 GB. * Witness Printer took 59.14 ms. Allocated memory is still 1.2 GB. Free memory was 874.7 MB in the beginning and 853.8 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=188, \old(head)=178, \old(head)=199, \old(methaneLevelCritical)=160, \old(pumpRunning)=147, \old(systemActive)=146, \old(waterLevel)=155, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] int retValue_acc ; [L864] 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] [L868] 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] [L869] 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] [L870] 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] [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] 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] [L870] 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] [L870] tmp = valid_product() [L872] 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] [L874] 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] [L875] 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] [L857] 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] [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] 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] [L94] 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] [L96] 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] [L102] tmp = __VERIFIER_nondet_int() [L104] 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] [L106] 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] [L324] COND TRUE waterLevel < 2 [L325] 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] [L106] 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] [L112] tmp___0 = __VERIFIER_nondet_int() [L114] 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] [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___2)) [L130] tmp___1 = __VERIFIER_nondet_int() [L132] COND FALSE !(\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=0, tmp___2=0, waterLevel=2] [L141] 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=1, waterLevel=2] [L165] 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=1, waterLevel=2] [L172] COND TRUE \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=1, waterLevel=2] [L174] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L180] 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=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] 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=1, waterLevel=2] [L51] 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=1, waterLevel=2] [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] 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=1, waterLevel=2] [L51] 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=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] 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=1, tmp=0, waterLevel=2] [L57] 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=1, waterLevel=2] [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] 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=1, waterLevel=2] [L57] 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=1, tmp=0, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L61] 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=1, waterLevel=2] [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] 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=1, waterLevel=2] [L61] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L61] tmp___1 = isPumpRunning() [L63] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L67] 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=1, waterLevel=2] [L890] __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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 113 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 463 SDtfs, 216 SDslu, 907 SDs, 0 SdLazy, 213 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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=323occurred 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, 30 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 20672 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...