./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product21_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_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product21_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/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 6346ce5eb6334508a32a1216a3fa5c414f15aa87 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:55:57,342 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:55:57,343 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:55:57,349 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:55:57,349 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:55:57,349 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:55:57,350 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:55:57,351 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:55:57,351 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:55:57,352 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:55:57,352 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:55:57,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:55:57,353 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:55:57,353 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:55:57,354 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:55:57,354 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:55:57,355 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:55:57,355 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:55:57,356 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:55:57,357 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:55:57,358 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:55:57,358 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:55:57,359 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:55:57,359 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:55:57,359 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:55:57,360 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:55:57,360 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:55:57,361 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:55:57,361 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:55:57,362 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:55:57,362 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:55:57,362 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:55:57,362 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:55:57,362 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:55:57,363 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:55:57,363 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:55:57,363 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 18:55:57,370 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:55:57,371 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:55:57,371 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:55:57,371 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:55:57,371 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:55:57,371 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:55:57,372 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:55:57,372 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 18:55:57,372 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:55:57,372 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:55:57,372 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 18:55:57,372 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 18:55:57,372 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:55:57,372 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:55:57,373 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:55:57,373 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:55:57,373 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:55:57,373 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:55:57,373 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:55:57,373 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:55:57,373 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:55:57,373 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:55:57,373 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:55:57,373 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:55:57,373 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:55:57,374 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:55:57,374 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:55:57,374 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:55:57,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:55:57,374 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:55:57,374 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:55:57,374 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:55:57,374 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 18:55:57,374 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:55:57,374 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 18:55:57,374 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 18:55:57,375 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_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/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 -> 6346ce5eb6334508a32a1216a3fa5c414f15aa87 [2018-12-09 18:55:57,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:55:57,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:55:57,404 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:55:57,405 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:55:57,405 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:55:57,406 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec3_product21_false-unreach-call_false-termination.cil.c [2018-12-09 18:55:57,452 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/data/34fef76f5/92234492085f4d6786cc01700450dde9/FLAGb1137bef3 [2018-12-09 18:55:57,868 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:55:57,868 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/sv-benchmarks/c/product-lines/minepump_spec3_product21_false-unreach-call_false-termination.cil.c [2018-12-09 18:55:57,874 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/data/34fef76f5/92234492085f4d6786cc01700450dde9/FLAGb1137bef3 [2018-12-09 18:55:57,882 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/data/34fef76f5/92234492085f4d6786cc01700450dde9 [2018-12-09 18:55:57,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:55:57,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:55:57,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:55:57,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:55:57,887 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:55:57,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:55:57" (1/1) ... [2018-12-09 18:55:57,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:57, skipping insertion in model container [2018-12-09 18:55:57,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:55:57" (1/1) ... [2018-12-09 18:55:57,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:55:57,920 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:55:58,069 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:55:58,108 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:55:58,146 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:55:58,160 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:55:58,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58 WrapperNode [2018-12-09 18:55:58,161 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:55:58,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:55:58,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:55:58,162 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:55:58,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (1/1) ... [2018-12-09 18:55:58,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (1/1) ... [2018-12-09 18:55:58,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:55:58,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:55:58,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:55:58,181 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:55:58,186 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (1/1) ... [2018-12-09 18:55:58,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (1/1) ... [2018-12-09 18:55:58,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (1/1) ... [2018-12-09 18:55:58,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (1/1) ... [2018-12-09 18:55:58,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (1/1) ... [2018-12-09 18:55:58,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (1/1) ... [2018-12-09 18:55:58,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (1/1) ... [2018-12-09 18:55:58,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:55:58,202 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:55:58,202 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:55:58,202 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:55:58,203 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/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 18:55:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 18:55:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 18:55:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:55:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:55:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 18:55:58,234 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 18:55:58,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:55:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 18:55:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 18:55:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 18:55:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 18:55:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 18:55:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 18:55:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 18:55:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 18:55:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 18:55:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 18:55:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-09 18:55:58,235 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-09 18:55:58,235 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 18:55:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 18:55:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 18:55:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 18:55:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 18:55:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 18:55:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 18:55:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 18:55:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 18:55:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 18:55:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 18:55:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 18:55:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 18:55:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 18:55:58,236 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 18:55:58,236 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 18:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 18:55:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 18:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 18:55:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 18:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 18:55:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 18:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 18:55:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 18:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 18:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:55:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 18:55:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 18:55:58,237 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2018-12-09 18:55:58,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2018-12-09 18:55:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 18:55:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 18:55:58,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:55:58,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:55:58,526 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:55:58,526 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 18:55:58,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:55:58 BoogieIcfgContainer [2018-12-09 18:55:58,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:55:58,527 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:55:58,527 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:55:58,529 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:55:58,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:55:57" (1/3) ... [2018-12-09 18:55:58,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a2b07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:55:58, skipping insertion in model container [2018-12-09 18:55:58,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:55:58" (2/3) ... [2018-12-09 18:55:58,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32a2b07c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:55:58, skipping insertion in model container [2018-12-09 18:55:58,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:55:58" (3/3) ... [2018-12-09 18:55:58,531 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21_false-unreach-call_false-termination.cil.c [2018-12-09 18:55:58,537 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:55:58,542 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 18:55:58,552 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 18:55:58,571 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:55:58,571 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:55:58,571 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:55:58,571 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:55:58,571 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:55:58,571 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:55:58,571 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:55:58,571 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:55:58,583 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states. [2018-12-09 18:55:58,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 18:55:58,588 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:58,589 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 18:55:58,590 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:58,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:58,593 INFO L82 PathProgramCache]: Analyzing trace with hash -413662011, now seen corresponding path program 1 times [2018-12-09 18:55:58,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:55:58,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:58,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:58,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:58,624 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:55:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:58,730 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 18:55:58,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:55:58,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 18:55:58,732 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:55:58,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 18:55:58,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 18:55:58,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:55:58,744 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 2 states. [2018-12-09 18:55:58,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:58,767 INFO L93 Difference]: Finished difference Result 250 states and 313 transitions. [2018-12-09 18:55:58,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 18:55:58,768 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2018-12-09 18:55:58,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:58,775 INFO L225 Difference]: With dead ends: 250 [2018-12-09 18:55:58,775 INFO L226 Difference]: Without dead ends: 125 [2018-12-09 18:55:58,777 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 18:55:58,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-12-09 18:55:58,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-12-09 18:55:58,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-12-09 18:55:58,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 148 transitions. [2018-12-09 18:55:58,808 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 148 transitions. Word has length 52 [2018-12-09 18:55:58,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:58,808 INFO L480 AbstractCegarLoop]: Abstraction has 125 states and 148 transitions. [2018-12-09 18:55:58,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 18:55:58,809 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 148 transitions. [2018-12-09 18:55:58,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-12-09 18:55:58,810 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:58,810 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 18:55:58,810 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:58,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:58,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1222789862, now seen corresponding path program 1 times [2018-12-09 18:55:58,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:55:58,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:58,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:58,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:58,812 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:55:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:58,863 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 18:55:58,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:55:58,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 18:55:58,863 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:55:58,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 18:55:58,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 18:55:58,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 18:55:58,864 INFO L87 Difference]: Start difference. First operand 125 states and 148 transitions. Second operand 3 states. [2018-12-09 18:55:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:58,877 INFO L93 Difference]: Finished difference Result 199 states and 235 transitions. [2018-12-09 18:55:58,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 18:55:58,877 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2018-12-09 18:55:58,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:58,878 INFO L225 Difference]: With dead ends: 199 [2018-12-09 18:55:58,878 INFO L226 Difference]: Without dead ends: 116 [2018-12-09 18:55:58,879 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 18:55:58,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-12-09 18:55:58,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-12-09 18:55:58,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-12-09 18:55:58,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 136 transitions. [2018-12-09 18:55:58,886 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 136 transitions. Word has length 53 [2018-12-09 18:55:58,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:58,886 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 136 transitions. [2018-12-09 18:55:58,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 18:55:58,886 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 136 transitions. [2018-12-09 18:55:58,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 18:55:58,887 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:58,887 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] [2018-12-09 18:55:58,887 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:58,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:58,888 INFO L82 PathProgramCache]: Analyzing trace with hash 817854089, now seen corresponding path program 1 times [2018-12-09 18:55:58,888 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:55:58,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:58,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:58,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:58,888 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:55:58,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:58,955 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 18:55:58,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:55:58,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 18:55:58,956 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:55:58,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 18:55:58,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 18:55:58,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 18:55:58,957 INFO L87 Difference]: Start difference. First operand 116 states and 136 transitions. Second operand 7 states. [2018-12-09 18:55:59,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:59,098 INFO L93 Difference]: Finished difference Result 208 states and 249 transitions. [2018-12-09 18:55:59,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 18:55:59,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2018-12-09 18:55:59,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:59,100 INFO L225 Difference]: With dead ends: 208 [2018-12-09 18:55:59,100 INFO L226 Difference]: Without dead ends: 116 [2018-12-09 18:55:59,101 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 [2018-12-09 18:55:59,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2018-12-09 18:55:59,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2018-12-09 18:55:59,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2018-12-09 18:55:59,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2018-12-09 18:55:59,112 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 57 [2018-12-09 18:55:59,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:59,112 INFO L480 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2018-12-09 18:55:59,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 18:55:59,112 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2018-12-09 18:55:59,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-12-09 18:55:59,114 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:59,114 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] [2018-12-09 18:55:59,114 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:59,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:59,115 INFO L82 PathProgramCache]: Analyzing trace with hash 234436965, now seen corresponding path program 1 times [2018-12-09 18:55:59,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:55:59,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:59,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:59,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:59,116 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:55:59,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:55:59,193 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 18:55:59,193 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:55:59,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 18:55:59,194 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:55:59,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:55:59,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:55:59,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 18:55:59,195 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand 6 states. [2018-12-09 18:55:59,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:55:59,307 INFO L93 Difference]: Finished difference Result 289 states and 353 transitions. [2018-12-09 18:55:59,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 18:55:59,308 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2018-12-09 18:55:59,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:55:59,310 INFO L225 Difference]: With dead ends: 289 [2018-12-09 18:55:59,310 INFO L226 Difference]: Without dead ends: 197 [2018-12-09 18:55:59,311 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 18:55:59,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2018-12-09 18:55:59,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2018-12-09 18:55:59,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-12-09 18:55:59,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 233 transitions. [2018-12-09 18:55:59,326 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 233 transitions. Word has length 70 [2018-12-09 18:55:59,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:55:59,326 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 233 transitions. [2018-12-09 18:55:59,326 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:55:59,326 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 233 transitions. [2018-12-09 18:55:59,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2018-12-09 18:55:59,328 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:55:59,328 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] [2018-12-09 18:55:59,328 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:55:59,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:55:59,328 INFO L82 PathProgramCache]: Analyzing trace with hash 712176063, now seen corresponding path program 1 times [2018-12-09 18:55:59,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:55:59,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:59,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:55:59,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:55:59,329 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:55:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 18:55:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 18:55:59,409 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 18:55:59,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:55:59 BoogieIcfgContainer [2018-12-09 18:55:59,474 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:55:59,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:55:59,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:55:59,475 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:55:59,475 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:55:58" (3/4) ... [2018-12-09 18:55:59,477 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 18:55:59,538 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9567ae2b-3c8f-4332-8235-c7cb7db40bf8/bin-2019/utaipan/witness.graphml [2018-12-09 18:55:59,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:55:59,538 INFO L168 Benchmark]: Toolchain (without parser) took 1654.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 948.1 MB in the beginning and 839.2 MB in the end (delta: 108.9 MB). Peak memory consumption was 233.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:59,539 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:59,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:59,540 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:59,540 INFO L168 Benchmark]: Boogie Preprocessor took 21.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:55:59,540 INFO L168 Benchmark]: RCFGBuilder took 324.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:59,540 INFO L168 Benchmark]: TraceAbstraction took 947.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 860.3 MB in the end (delta: 197.8 MB). Peak memory consumption was 197.8 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:59,541 INFO L168 Benchmark]: Witness Printer took 63.21 ms. Allocated memory is still 1.2 GB. Free memory was 860.3 MB in the beginning and 839.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2018-12-09 18:55:59,542 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 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 275.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.02 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 324.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.3 MB). Peak memory consumption was 50.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 947.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 860.3 MB in the end (delta: 197.8 MB). Peak memory consumption was 197.8 MB. Max. memory is 11.5 GB. * Witness Printer took 63.21 ms. Allocated memory is still 1.2 GB. Free memory was 860.3 MB in the beginning and 839.2 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 598]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L415] int pumpRunning = 0; [L416] int systemActive = 1; [L672] int waterLevel = 1; [L673] int methaneLevelCritical = 0; [L761] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=195, \old(head)=179, \old(head)=200, \old(methaneLevelCritical)=154, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=146, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L837] int retValue_acc ; [L838] 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] [L842] 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] [L843] 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] [L844] 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] [L920] int retValue_acc ; [L923] retValue_acc = 1 [L924] 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] [L844] 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] [L844] tmp = valid_product() [L846] 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] [L848] 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] [L849] 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] [L828] 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] [L607] int splverifierCounter ; [L608] int tmp ; [L609] int tmp___0 ; [L610] int tmp___1 ; [L611] int tmp___2 ; [L614] 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] [L616] 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] [L618] 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] [L624] tmp = __VERIFIER_nondet_int() [L626] 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] [L628] 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] [L690] COND TRUE waterLevel < 2 [L691] 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] [L628] 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] [L634] tmp___0 = __VERIFIER_nondet_int() [L636] 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] [L644] tmp___2 = __VERIFIER_nondet_int() [L646] 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] [L659] 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] [L423] 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] [L430] 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] [L432] 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] [L478] 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] [L481] 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] [L496] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L452] 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] [L455] 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] [L470] 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] [L496] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] 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] [L438] 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] [L861] int tmp ; [L862] int tmp___0 ; [L863] 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] [L867] 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] [L711] int retValue_acc ; [L714] retValue_acc = methaneLevelCritical [L715] 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] [L867] 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] [L867] tmp = isMethaneLevelCritical() [L869] 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] [L873] 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] [L743] int retValue_acc ; [L746] retValue_acc = waterLevel [L747] 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] [L873] 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] [L873] tmp___0 = getWaterLevel() [L875] 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] [L877] 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] [L530] int retValue_acc ; [L533] retValue_acc = pumpRunning [L534] 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] [L877] 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] [L877] tmp___1 = isPumpRunning() [L879] 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] [L883] 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] [L598] __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...