./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product36_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_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product36_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/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 deeb3c1689cccb41b32be052288e2f3a90dc0e8e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 [2018-12-09 12:25:24,752 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 12:25:24,753 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 12:25:24,759 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 12:25:24,759 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 12:25:24,760 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 12:25:24,760 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 12:25:24,761 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 12:25:24,762 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 12:25:24,763 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 12:25:24,763 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 12:25:24,763 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 12:25:24,764 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 12:25:24,764 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 12:25:24,765 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 12:25:24,765 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 12:25:24,766 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 12:25:24,767 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 12:25:24,768 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 12:25:24,768 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 12:25:24,769 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 12:25:24,770 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 12:25:24,771 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 12:25:24,771 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 12:25:24,771 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 12:25:24,772 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 12:25:24,772 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 12:25:24,773 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 12:25:24,773 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 12:25:24,774 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 12:25:24,774 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 12:25:24,774 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 12:25:24,774 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 12:25:24,775 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 12:25:24,775 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 12:25:24,776 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 12:25:24,776 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 12:25:24,783 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 12:25:24,783 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 12:25:24,784 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 12:25:24,784 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 12:25:24,784 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 12:25:24,784 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 12:25:24,784 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 12:25:24,784 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 12:25:24,785 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 12:25:24,785 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 12:25:24,785 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 12:25:24,785 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 12:25:24,785 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 12:25:24,785 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 12:25:24,786 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 12:25:24,786 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 12:25:24,786 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 12:25:24,786 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 12:25:24,786 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 12:25:24,786 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 12:25:24,786 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 12:25:24,786 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 12:25:24,786 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 12:25:24,787 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 12:25:24,787 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 12:25:24,787 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 12:25:24,787 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 12:25:24,787 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 12:25:24,787 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 12:25:24,787 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 12:25:24,787 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 12:25:24,788 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 12:25:24,788 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 12:25:24,788 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 12:25:24,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 12:25:24,788 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 12:25:24,788 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_c200739d-4d28-44ff-9c57-d208329bac2b/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 -> deeb3c1689cccb41b32be052288e2f3a90dc0e8e [2018-12-09 12:25:24,806 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 12:25:24,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 12:25:24,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 12:25:24,819 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 12:25:24,819 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 12:25:24,820 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product36_false-unreach-call_false-termination.cil.c [2018-12-09 12:25:24,857 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/data/c6d32cdcf/5b51715e5385439cbfe4648367700cba/FLAG77c54f406 [2018-12-09 12:25:25,267 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 12:25:25,267 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/sv-benchmarks/c/product-lines/minepump_spec3_product36_false-unreach-call_false-termination.cil.c [2018-12-09 12:25:25,273 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/data/c6d32cdcf/5b51715e5385439cbfe4648367700cba/FLAG77c54f406 [2018-12-09 12:25:25,281 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/data/c6d32cdcf/5b51715e5385439cbfe4648367700cba [2018-12-09 12:25:25,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 12:25:25,284 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 12:25:25,284 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 12:25:25,284 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 12:25:25,286 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 12:25:25,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25, skipping insertion in model container [2018-12-09 12:25:25,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 12:25:25,312 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 12:25:25,454 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:25:25,495 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 12:25:25,534 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 12:25:25,548 INFO L195 MainTranslator]: Completed translation [2018-12-09 12:25:25,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25 WrapperNode [2018-12-09 12:25:25,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 12:25:25,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 12:25:25,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 12:25:25,549 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 12:25:25,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 12:25:25,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 12:25:25,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 12:25:25,569 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 12:25:25,574 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (1/1) ... [2018-12-09 12:25:25,588 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 12:25:25,589 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 12:25:25,589 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 12:25:25,589 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 12:25:25,589 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/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 [2018-12-09 12:25:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 12:25:25,620 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 12:25:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 12:25:25,620 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 12:25:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 12:25:25,620 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 12:25:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 12:25:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 12:25:25,620 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 12:25:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 12:25:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 12:25:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 12:25:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 12:25:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 12:25:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 12:25:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 12:25:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 12:25:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 12:25:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 12:25:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 12:25:25,622 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 12:25:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 12:25:25,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 12:25:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 12:25:25,622 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 12:25:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 12:25:25,622 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 12:25:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 12:25:25,623 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 12:25:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 12:25:25,623 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 12:25:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 12:25:25,623 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 12:25:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 12:25:25,623 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 12:25:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 12:25:25,623 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 12:25:25,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 12:25:25,624 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 12:25:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 12:25:25,624 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 12:25:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 12:25:25,624 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 12:25:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 12:25:25,624 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 12:25:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 12:25:25,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 12:25:25,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 12:25:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 12:25:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 12:25:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-12-09 12:25:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-12-09 12:25:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 12:25:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 12:25:25,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 12:25:25,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 12:25:25,889 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 12:25:25,889 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 12:25:25,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:25:25 BoogieIcfgContainer [2018-12-09 12:25:25,890 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 12:25:25,891 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 12:25:25,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 12:25:25,893 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 12:25:25,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:25:25" (1/3) ... [2018-12-09 12:25:25,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c460016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:25:25, skipping insertion in model container [2018-12-09 12:25:25,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:25" (2/3) ... [2018-12-09 12:25:25,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c460016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:25:25, skipping insertion in model container [2018-12-09 12:25:25,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:25:25" (3/3) ... [2018-12-09 12:25:25,896 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product36_false-unreach-call_false-termination.cil.c [2018-12-09 12:25:25,902 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 12:25:25,906 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 12:25:25,915 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 12:25:25,932 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 12:25:25,933 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 12:25:25,933 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 12:25:25,933 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 12:25:25,933 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 12:25:25,933 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 12:25:25,933 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 12:25:25,933 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 12:25:25,944 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2018-12-09 12:25:25,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 12:25:25,949 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:25:25,949 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] [2018-12-09 12:25:25,950 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:25:25,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:25:25,954 INFO L82 PathProgramCache]: Analyzing trace with hash 2134322377, now seen corresponding path program 1 times [2018-12-09 12:25:25,955 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:25:25,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:25:25,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:25:25,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:25:25,983 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:25:26,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:25:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:25:26,091 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:25:26,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 12:25:26,091 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 12:25:26,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 12:25:26,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 12:25:26,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 12:25:26,104 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2018-12-09 12:25:26,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:25:26,125 INFO L93 Difference]: Finished difference Result 248 states and 305 transitions. [2018-12-09 12:25:26,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 12:25:26,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-12-09 12:25:26,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:25:26,133 INFO L225 Difference]: With dead ends: 248 [2018-12-09 12:25:26,133 INFO L226 Difference]: Without dead ends: 124 [2018-12-09 12:25:26,135 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 [2018-12-09 12:25:26,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-12-09 12:25:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-12-09 12:25:26,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-12-09 12:25:26,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 144 transitions. [2018-12-09 12:25:26,165 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 144 transitions. Word has length 52 [2018-12-09 12:25:26,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:25:26,166 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 144 transitions. [2018-12-09 12:25:26,166 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 12:25:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 144 transitions. [2018-12-09 12:25:26,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-09 12:25:26,168 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:25:26,168 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] [2018-12-09 12:25:26,168 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:25:26,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:25:26,168 INFO L82 PathProgramCache]: Analyzing trace with hash -2100211172, now seen corresponding path program 1 times [2018-12-09 12:25:26,168 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:25:26,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:25:26,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:25:26,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:25:26,169 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:25:26,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:25:26,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:25:26,236 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:25:26,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 12:25:26,237 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 12:25:26,238 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 12:25:26,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 12:25:26,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 12:25:26,239 INFO L87 Difference]: Start difference. First operand 124 states and 144 transitions. Second operand 3 states. [2018-12-09 12:25:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:25:26,255 INFO L93 Difference]: Finished difference Result 184 states and 213 transitions. [2018-12-09 12:25:26,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 12:25:26,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-12-09 12:25:26,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:25:26,257 INFO L225 Difference]: With dead ends: 184 [2018-12-09 12:25:26,257 INFO L226 Difference]: Without dead ends: 115 [2018-12-09 12:25:26,258 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 [2018-12-09 12:25:26,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2018-12-09 12:25:26,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2018-12-09 12:25:26,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2018-12-09 12:25:26,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 132 transitions. [2018-12-09 12:25:26,268 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 132 transitions. Word has length 53 [2018-12-09 12:25:26,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:25:26,268 INFO L480 AbstractCegarLoop]: Abstraction has 115 states and 132 transitions. [2018-12-09 12:25:26,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 12:25:26,269 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 132 transitions. [2018-12-09 12:25:26,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-12-09 12:25:26,270 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:25:26,270 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] [2018-12-09 12:25:26,270 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:25:26,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:25:26,271 INFO L82 PathProgramCache]: Analyzing trace with hash 587868502, now seen corresponding path program 1 times [2018-12-09 12:25:26,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:25:26,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:25:26,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:25:26,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:25:26,272 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:25:26,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:25:26,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:25:26,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:25:26,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 12:25:26,354 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 12:25:26,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 12:25:26,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 12:25:26,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 12:25:26,355 INFO L87 Difference]: Start difference. First operand 115 states and 132 transitions. Second operand 7 states. [2018-12-09 12:25:26,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:25:26,592 INFO L93 Difference]: Finished difference Result 353 states and 423 transitions. [2018-12-09 12:25:26,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 12:25:26,592 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2018-12-09 12:25:26,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:25:26,595 INFO L225 Difference]: With dead ends: 353 [2018-12-09 12:25:26,595 INFO L226 Difference]: Without dead ends: 262 [2018-12-09 12:25:26,596 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 [2018-12-09 12:25:26,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-12-09 12:25:26,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 238. [2018-12-09 12:25:26,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-12-09 12:25:26,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 283 transitions. [2018-12-09 12:25:26,613 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 283 transitions. Word has length 58 [2018-12-09 12:25:26,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:25:26,614 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 283 transitions. [2018-12-09 12:25:26,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 12:25:26,614 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 283 transitions. [2018-12-09 12:25:26,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-12-09 12:25:26,616 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:25:26,616 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] [2018-12-09 12:25:26,616 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:25:26,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:25:26,616 INFO L82 PathProgramCache]: Analyzing trace with hash 138534338, now seen corresponding path program 1 times [2018-12-09 12:25:26,617 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:25:26,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:25:26,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:25:26,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:25:26,617 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:25:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 12:25:26,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 12:25:26,679 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 12:25:26,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 12:25:26,680 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 12:25:26,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 12:25:26,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 12:25:26,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 12:25:26,681 INFO L87 Difference]: Start difference. First operand 238 states and 283 transitions. Second operand 6 states. [2018-12-09 12:25:26,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 12:25:26,795 INFO L93 Difference]: Finished difference Result 639 states and 801 transitions. [2018-12-09 12:25:26,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 12:25:26,795 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2018-12-09 12:25:26,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 12:25:26,797 INFO L225 Difference]: With dead ends: 639 [2018-12-09 12:25:26,797 INFO L226 Difference]: Without dead ends: 425 [2018-12-09 12:25:26,799 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 [2018-12-09 12:25:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2018-12-09 12:25:26,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 419. [2018-12-09 12:25:26,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 419 states. [2018-12-09 12:25:26,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 506 transitions. [2018-12-09 12:25:26,821 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 506 transitions. Word has length 63 [2018-12-09 12:25:26,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 12:25:26,822 INFO L480 AbstractCegarLoop]: Abstraction has 419 states and 506 transitions. [2018-12-09 12:25:26,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 12:25:26,822 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 506 transitions. [2018-12-09 12:25:26,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-12-09 12:25:26,823 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 12:25:26,823 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] [2018-12-09 12:25:26,824 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 12:25:26,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 12:25:26,824 INFO L82 PathProgramCache]: Analyzing trace with hash 174382664, now seen corresponding path program 1 times [2018-12-09 12:25:26,824 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 12:25:26,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:25:26,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 12:25:26,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 12:25:26,825 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 12:25:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:25:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 12:25:26,899 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 12:25:26,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:25:26 BoogieIcfgContainer [2018-12-09 12:25:26,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 12:25:26,968 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 12:25:26,968 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 12:25:26,968 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 12:25:26,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:25:25" (3/4) ... [2018-12-09 12:25:26,970 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 12:25:27,025 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c200739d-4d28-44ff-9c57-d208329bac2b/bin-2019/utaipan/witness.graphml [2018-12-09 12:25:27,025 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 12:25:27,026 INFO L168 Benchmark]: Toolchain (without parser) took 1742.54 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 948.1 MB in the beginning and 1.0 GB in the end (delta: -101.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:25:27,027 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:25:27,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -141.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2018-12-09 12:25:27,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 12:25:27,027 INFO L168 Benchmark]: Boogie Preprocessor took 20.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-09 12:25:27,027 INFO L168 Benchmark]: RCFGBuilder took 301.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. [2018-12-09 12:25:27,027 INFO L168 Benchmark]: TraceAbstraction took 1077.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -36.0 MB). Peak memory consumption was 213.5 MB. Max. memory is 11.5 GB. [2018-12-09 12:25:27,028 INFO L168 Benchmark]: Witness Printer took 57.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-12-09 12:25:27,029 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 264.27 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -141.4 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.15 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 301.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1077.21 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -36.0 MB). Peak memory consumption was 213.5 MB. Max. memory is 11.5 GB. * Witness Printer took 57.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L218] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L675] int waterLevel = 1; [L676] int methaneLevelCritical = 0; [L769] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=193, \old(head)=200, \old(head)=181, \old(methaneLevelCritical)=155, \old(pumpRunning)=144, \old(systemActive)=143, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L845] int retValue_acc ; [L846] 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] [L850] 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] [L851] 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] [L852] 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] [L894] int retValue_acc ; [L897] retValue_acc = 1 [L898] 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] [L852] 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] [L852] tmp = valid_product() [L854] 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] [L856] 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] [L857] 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] [L836] 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] [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] 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] [L615] 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] [L617] 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] [L623] tmp = __VERIFIER_nondet_int() [L625] 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] [L627] 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] [L693] COND TRUE waterLevel < 2 [L694] 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] [L627] 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] [L633] tmp___0 = __VERIFIER_nondet_int() [L635] 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] [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___2)) [L651] tmp___1 = __VERIFIER_nondet_int() [L653] 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] [L655] 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] [L582] 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] [L589] 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] [L655] 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] [L662] 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] [L434] 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] [L441] 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] [L449] 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] [L904] int tmp ; [L905] int tmp___0 ; [L906] 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] [L910] 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] [L714] int retValue_acc ; [L717] retValue_acc = methaneLevelCritical [L718] 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] [L910] 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] [L910] tmp = isMethaneLevelCritical() [L912] 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] [L916] 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] [L746] int retValue_acc ; [L749] retValue_acc = waterLevel [L750] 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] [L916] 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] [L916] tmp___0 = getWaterLevel() [L918] 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] [L920] 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] [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] 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] [L920] 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] [L920] tmp___1 = isPumpRunning() [L922] 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] [L926] 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] [L44] __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, 137 locations, 1 error locations. UNSAFE Result, 1.0s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 612 SDtfs, 302 SDslu, 1214 SDs, 0 SdLazy, 270 SolverSat, 16 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=419occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 21060 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...