./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product29_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_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product29_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/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 6a7af561659176054c5750cdb899e68779816fa6 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:19:57,242 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 23:19:57,243 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 23:19:57,250 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 23:19:57,251 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 23:19:57,251 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 23:19:57,252 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 23:19:57,252 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 23:19:57,253 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 23:19:57,253 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 23:19:57,254 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 23:19:57,254 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 23:19:57,254 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 23:19:57,255 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 23:19:57,255 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 23:19:57,256 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 23:19:57,256 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 23:19:57,257 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 23:19:57,258 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 23:19:57,259 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 23:19:57,259 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 23:19:57,260 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 23:19:57,261 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 23:19:57,261 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 23:19:57,261 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 23:19:57,262 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 23:19:57,262 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 23:19:57,262 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 23:19:57,263 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 23:19:57,263 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 23:19:57,263 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 23:19:57,264 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 23:19:57,264 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 23:19:57,264 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 23:19:57,264 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 23:19:57,265 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 23:19:57,265 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 23:19:57,274 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 23:19:57,274 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 23:19:57,275 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 23:19:57,275 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 23:19:57,275 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 23:19:57,275 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 23:19:57,275 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 23:19:57,276 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 23:19:57,276 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 23:19:57,276 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 23:19:57,276 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 23:19:57,276 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 23:19:57,276 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 23:19:57,277 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 23:19:57,277 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 23:19:57,277 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 23:19:57,277 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 23:19:57,277 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 23:19:57,278 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 23:19:57,278 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 23:19:57,278 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 23:19:57,278 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 23:19:57,278 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 23:19:57,278 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 23:19:57,279 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 23:19:57,279 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 23:19:57,279 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 23:19:57,279 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 23:19:57,279 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 23:19:57,279 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 23:19:57,279 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 23:19:57,280 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 23:19:57,280 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 23:19:57,280 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 23:19:57,280 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 23:19:57,280 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 23:19:57,280 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_59182425-2861-408d-8c88-fb8b00ef0b83/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 -> 6a7af561659176054c5750cdb899e68779816fa6 [2018-12-02 23:19:57,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 23:19:57,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 23:19:57,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 23:19:57,317 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 23:19:57,317 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 23:19:57,318 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product29_false-unreach-call_false-termination.cil.c [2018-12-02 23:19:57,359 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/data/9303f2a67/cb8b71c1f95f4975a1f58f0c7d9d4a2b/FLAG905a24623 [2018-12-02 23:19:57,709 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 23:19:57,709 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/sv-benchmarks/c/product-lines/minepump_spec3_product29_false-unreach-call_false-termination.cil.c [2018-12-02 23:19:57,715 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/data/9303f2a67/cb8b71c1f95f4975a1f58f0c7d9d4a2b/FLAG905a24623 [2018-12-02 23:19:58,102 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/data/9303f2a67/cb8b71c1f95f4975a1f58f0c7d9d4a2b [2018-12-02 23:19:58,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 23:19:58,106 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 23:19:58,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 23:19:58,106 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 23:19:58,108 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 23:19:58,109 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,111 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67523692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58, skipping insertion in model container [2018-12-02 23:19:58,111 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 23:19:58,142 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 23:19:58,299 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 23:19:58,341 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 23:19:58,380 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 23:19:58,395 INFO L195 MainTranslator]: Completed translation [2018-12-02 23:19:58,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58 WrapperNode [2018-12-02 23:19:58,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 23:19:58,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 23:19:58,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 23:19:58,395 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 23:19:58,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 23:19:58,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 23:19:58,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 23:19:58,415 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 23:19:58,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,423 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,434 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (1/1) ... [2018-12-02 23:19:58,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 23:19:58,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 23:19:58,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 23:19:58,436 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 23:19:58,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/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 23:19:58,474 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 23:19:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 23:19:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 23:19:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 23:19:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 23:19:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 23:19:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 23:19:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 23:19:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 23:19:58,475 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 23:19:58,475 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 23:19:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 23:19:58,476 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 23:19:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 23:19:58,476 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 23:19:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 23:19:58,476 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 23:19:58,476 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 23:19:58,477 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 23:19:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 23:19:58,477 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 23:19:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 23:19:58,477 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 23:19:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 23:19:58,477 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 23:19:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 23:19:58,477 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 23:19:58,477 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 23:19:58,478 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 23:19:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 23:19:58,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 23:19:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 23:19:58,478 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 23:19:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 23:19:58,478 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2018-12-02 23:19:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 23:19:58,478 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 23:19:58,478 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 23:19:58,479 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 23:19:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 23:19:58,479 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 23:19:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 23:19:58,479 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 23:19:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 23:19:58,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 23:19:58,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 23:19:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 23:19:58,480 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 23:19:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-12-02 23:19:58,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-12-02 23:19:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 23:19:58,480 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 23:19:58,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 23:19:58,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 23:19:58,746 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 23:19:58,746 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 23:19:58,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:19:58 BoogieIcfgContainer [2018-12-02 23:19:58,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 23:19:58,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 23:19:58,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 23:19:58,749 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 23:19:58,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:19:58" (1/3) ... [2018-12-02 23:19:58,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523dd7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:19:58, skipping insertion in model container [2018-12-02 23:19:58,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:19:58" (2/3) ... [2018-12-02 23:19:58,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@523dd7ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:19:58, skipping insertion in model container [2018-12-02 23:19:58,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:19:58" (3/3) ... [2018-12-02 23:19:58,751 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product29_false-unreach-call_false-termination.cil.c [2018-12-02 23:19:58,757 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 23:19:58,761 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 23:19:58,771 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 23:19:58,788 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 23:19:58,788 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 23:19:58,789 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 23:19:58,789 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 23:19:58,789 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 23:19:58,789 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 23:19:58,789 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 23:19:58,789 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 23:19:58,800 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2018-12-02 23:19:58,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-02 23:19:58,805 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 23:19:58,806 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 23:19:58,807 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 23:19:58,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 23:19:58,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1506732962, now seen corresponding path program 1 times [2018-12-02 23:19:58,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 23:19:58,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 23:19:58,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 23:19:58,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 23:19:58,840 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 23:19:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:19:58,952 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 23:19:58,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 23:19:58,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 23:19:58,953 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 23:19:58,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 23:19:58,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 23:19:58,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 23:19:58,965 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2018-12-02 23:19:58,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 23:19:58,990 INFO L93 Difference]: Finished difference Result 250 states and 313 transitions. [2018-12-02 23:19:58,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 23:19:58,991 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-12-02 23:19:58,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 23:19:58,997 INFO L225 Difference]: With dead ends: 250 [2018-12-02 23:19:58,997 INFO L226 Difference]: Without dead ends: 125 [2018-12-02 23:19:59,000 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 23:19:59,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-12-02 23:19:59,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-12-02 23:19:59,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-12-02 23:19:59,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2018-12-02 23:19:59,031 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 52 [2018-12-02 23:19:59,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 23:19:59,031 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2018-12-02 23:19:59,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 23:19:59,032 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2018-12-02 23:19:59,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-02 23:19:59,033 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 23:19:59,034 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 23:19:59,034 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 23:19:59,034 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 23:19:59,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1161867440, now seen corresponding path program 1 times [2018-12-02 23:19:59,034 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 23:19:59,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 23:19:59,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 23:19:59,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 23:19:59,035 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 23:19:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:19:59,105 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 23:19:59,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 23:19:59,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 23:19:59,106 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 23:19:59,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 23:19:59,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 23:19:59,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 23:19:59,108 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand 3 states. [2018-12-02 23:19:59,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 23:19:59,124 INFO L93 Difference]: Finished difference Result 199 states and 235 transitions. [2018-12-02 23:19:59,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 23:19:59,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-12-02 23:19:59,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 23:19:59,126 INFO L225 Difference]: With dead ends: 199 [2018-12-02 23:19:59,126 INFO L226 Difference]: Without dead ends: 116 [2018-12-02 23:19:59,127 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 23:19:59,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-12-02 23:19:59,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-12-02 23:19:59,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-12-02 23:19:59,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2018-12-02 23:19:59,135 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 53 [2018-12-02 23:19:59,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 23:19:59,135 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2018-12-02 23:19:59,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 23:19:59,135 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2018-12-02 23:19:59,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-02 23:19:59,136 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 23:19:59,136 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 23:19:59,136 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 23:19:59,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 23:19:59,136 INFO L82 PathProgramCache]: Analyzing trace with hash 459155816, now seen corresponding path program 1 times [2018-12-02 23:19:59,137 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 23:19:59,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 23:19:59,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 23:19:59,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 23:19:59,137 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 23:19:59,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:19:59,196 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 23:19:59,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 23:19:59,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 23:19:59,197 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 23:19:59,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 23:19:59,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 23:19:59,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 23:19:59,198 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand 7 states. [2018-12-02 23:19:59,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 23:19:59,352 INFO L93 Difference]: Finished difference Result 208 states and 249 transitions. [2018-12-02 23:19:59,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 23:19:59,353 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-12-02 23:19:59,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 23:19:59,354 INFO L225 Difference]: With dead ends: 208 [2018-12-02 23:19:59,354 INFO L226 Difference]: Without dead ends: 116 [2018-12-02 23:19:59,354 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 23:19:59,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-12-02 23:19:59,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-12-02 23:19:59,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-12-02 23:19:59,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2018-12-02 23:19:59,361 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 57 [2018-12-02 23:19:59,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 23:19:59,361 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2018-12-02 23:19:59,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 23:19:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2018-12-02 23:19:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-02 23:19:59,363 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 23:19:59,363 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 23:19:59,363 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 23:19:59,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 23:19:59,363 INFO L82 PathProgramCache]: Analyzing trace with hash 521086793, now seen corresponding path program 1 times [2018-12-02 23:19:59,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 23:19:59,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 23:19:59,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 23:19:59,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 23:19:59,364 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 23:19:59,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 23:19:59,420 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 23:19:59,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 23:19:59,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 23:19:59,420 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 23:19:59,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 23:19:59,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 23:19:59,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 23:19:59,421 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand 6 states. [2018-12-02 23:19:59,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 23:19:59,532 INFO L93 Difference]: Finished difference Result 289 states and 353 transitions. [2018-12-02 23:19:59,532 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 23:19:59,532 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2018-12-02 23:19:59,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 23:19:59,535 INFO L225 Difference]: With dead ends: 289 [2018-12-02 23:19:59,535 INFO L226 Difference]: Without dead ends: 197 [2018-12-02 23:19:59,536 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 23:19:59,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-12-02 23:19:59,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2018-12-02 23:19:59,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-12-02 23:19:59,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 233 transitions. [2018-12-02 23:19:59,551 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 233 transitions. Word has length 70 [2018-12-02 23:19:59,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 23:19:59,551 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 233 transitions. [2018-12-02 23:19:59,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 23:19:59,551 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 233 transitions. [2018-12-02 23:19:59,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-12-02 23:19:59,552 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 23:19:59,553 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 23:19:59,553 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 23:19:59,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 23:19:59,553 INFO L82 PathProgramCache]: Analyzing trace with hash -459371837, now seen corresponding path program 1 times [2018-12-02 23:19:59,553 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 23:19:59,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 23:19:59,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 23:19:59,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 23:19:59,554 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 23:19:59,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 23:19:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 23:19:59,656 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 23:19:59,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:19:59 BoogieIcfgContainer [2018-12-02 23:19:59,723 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 23:19:59,723 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 23:19:59,723 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 23:19:59,724 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 23:19:59,724 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:19:58" (3/4) ... [2018-12-02 23:19:59,725 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 23:19:59,788 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_59182425-2861-408d-8c88-fb8b00ef0b83/bin-2019/utaipan/witness.graphml [2018-12-02 23:19:59,789 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 23:19:59,789 INFO L168 Benchmark]: Toolchain (without parser) took 1683.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 945.9 MB in the beginning and 827.3 MB in the end (delta: 118.6 MB). Peak memory consumption was 236.6 MB. Max. memory is 11.5 GB. [2018-12-02 23:19:59,790 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. [2018-12-02 23:19:59,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -158.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-12-02 23:19:59,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.60 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. [2018-12-02 23:19:59,791 INFO L168 Benchmark]: Boogie Preprocessor took 20.86 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 23:19:59,791 INFO L168 Benchmark]: RCFGBuilder took 310.26 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. [2018-12-02 23:19:59,791 INFO L168 Benchmark]: TraceAbstraction took 976.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 851.4 MB in the end (delta: 203.3 MB). Peak memory consumption was 203.3 MB. Max. memory is 11.5 GB. [2018-12-02 23:19:59,791 INFO L168 Benchmark]: Witness Printer took 65.17 ms. Allocated memory is still 1.1 GB. Free memory was 851.4 MB in the beginning and 827.3 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2018-12-02 23:19:59,793 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 288.85 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -158.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.60 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 20.86 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 310.26 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: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 976.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 851.4 MB in the end (delta: 203.3 MB). Peak memory consumption was 203.3 MB. Max. memory is 11.5 GB. * Witness Printer took 65.17 ms. Allocated memory is still 1.1 GB. Free memory was 851.4 MB in the beginning and 827.3 MB 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: 580]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L83] int waterLevel = 1; [L84] int methaneLevelCritical = 0; [L341] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L585] int cleanupTimeShifts = 4; [L686] int pumpRunning = 0; [L687] int systemActive = 1; [L661] int retValue_acc ; [L662] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L666] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L667] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L668] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L567] int retValue_acc ; [L570] retValue_acc = 1 [L571] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L668] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L668] tmp = valid_product() [L670] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L672] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L673] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L655] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] int splverifierCounter ; [L883] int tmp ; [L884] int tmp___0 ; [L885] int tmp___1 ; [L886] int tmp___2 ; [L889] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L891] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L893] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L899] tmp = __VERIFIER_nondet_int() [L901] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L903] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L101] COND TRUE waterLevel < 2 [L102] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L903] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L909] tmp___0 = __VERIFIER_nondet_int() [L911] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L919] tmp___2 = __VERIFIER_nondet_int() [L921] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L934] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L693] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L700] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L748] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L751] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L722] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L725] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L740] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L766] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L702] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L708] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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(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(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L122] int retValue_acc ; [L125] retValue_acc = methaneLevelCritical [L126] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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(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(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(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L154] int retValue_acc ; [L157] retValue_acc = waterLevel [L158] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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(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(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(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L817] int retValue_acc ; [L820] retValue_acc = pumpRunning [L821] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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(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(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(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L580] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 138 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 575 SDtfs, 223 SDslu, 907 SDs, 0 SdLazy, 200 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 306 NumberOfCodeBlocks, 306 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 228 ConstructedInterpolants, 0 QuantifiedInterpolants, 21992 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...