./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product49_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_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/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 5f66ecd5f6aef5b29bc80dee4a57cabf0f421223 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 00:25:14,476 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:25:14,477 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:25:14,485 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:25:14,486 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:25:14,486 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:25:14,487 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:25:14,488 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:25:14,490 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:25:14,490 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:25:14,491 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:25:14,491 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:25:14,492 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:25:14,492 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:25:14,493 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:25:14,494 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:25:14,494 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:25:14,496 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:25:14,497 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:25:14,498 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:25:14,499 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:25:14,499 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:25:14,501 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:25:14,501 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:25:14,501 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:25:14,502 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:25:14,503 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:25:14,503 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:25:14,504 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:25:14,504 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:25:14,505 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:25:14,505 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:25:14,505 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:25:14,505 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:25:14,506 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:25:14,506 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:25:14,506 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 00:25:14,517 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:25:14,517 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:25:14,518 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:25:14,518 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:25:14,518 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:25:14,518 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:25:14,518 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:25:14,518 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:25:14,518 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:25:14,518 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:25:14,519 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:25:14,519 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:25:14,519 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:25:14,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:25:14,519 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 00:25:14,519 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:25:14,520 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 00:25:14,520 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:25:14,520 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:25:14,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:25:14,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:25:14,520 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 00:25:14,520 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:25:14,520 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:25:14,521 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:25:14,521 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:25:14,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:25:14,521 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:25:14,521 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:25:14,521 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:25:14,521 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:25:14,521 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:25:14,521 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:25:14,521 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:25:14,521 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:25:14,522 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:25:14,522 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_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/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 -> 5f66ecd5f6aef5b29bc80dee4a57cabf0f421223 [2018-12-09 00:25:14,545 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:25:14,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:25:14,554 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:25:14,555 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:25:14,555 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:25:14,556 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product49_false-unreach-call_false-termination.cil.c [2018-12-09 00:25:14,591 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/data/d6e0fe7a0/820464d02e694871924bd869f796604a/FLAG7cdb8e2a5 [2018-12-09 00:25:14,992 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:25:14,993 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/sv-benchmarks/c/product-lines/minepump_spec1_product49_false-unreach-call_false-termination.cil.c [2018-12-09 00:25:14,998 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/data/d6e0fe7a0/820464d02e694871924bd869f796604a/FLAG7cdb8e2a5 [2018-12-09 00:25:15,006 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/data/d6e0fe7a0/820464d02e694871924bd869f796604a [2018-12-09 00:25:15,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:25:15,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:25:15,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:25:15,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:25:15,012 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:25:15,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@354f5439 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15, skipping insertion in model container [2018-12-09 00:25:15,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:25:15,044 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:25:15,191 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:25:15,233 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:25:15,285 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:25:15,301 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:25:15,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15 WrapperNode [2018-12-09 00:25:15,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:25:15,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:25:15,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:25:15,302 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:25:15,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,326 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:25:15,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:25:15,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:25:15,326 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:25:15,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (1/1) ... [2018-12-09 00:25:15,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:25:15,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:25:15,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:25:15,352 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:25:15,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/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 00:25:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 00:25:15,388 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 00:25:15,388 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:25:15,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:25:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 00:25:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 00:25:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 00:25:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 00:25:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 00:25:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 00:25:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 00:25:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 00:25:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 00:25:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 00:25:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 00:25:15,389 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 00:25:15,389 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 00:25:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 00:25:15,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 00:25:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 00:25:15,390 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 00:25:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 00:25:15,390 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 00:25:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 00:25:15,390 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 00:25:15,390 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 00:25:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 00:25:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 00:25:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 00:25:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 00:25:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 00:25:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 00:25:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 00:25:15,391 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 00:25:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 00:25:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 00:25:15,392 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 00:25:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 00:25:15,392 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 00:25:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 00:25:15,392 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 00:25:15,392 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 00:25:15,392 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 00:25:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 00:25:15,393 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 00:25:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 00:25:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:25:15,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:25:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 00:25:15,393 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 00:25:15,393 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 00:25:15,393 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 00:25:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:25:15,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:25:15,394 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 00:25:15,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 00:25:15,666 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:25:15,666 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 00:25:15,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:25:15 BoogieIcfgContainer [2018-12-09 00:25:15,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:25:15,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:25:15,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:25:15,670 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:25:15,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:25:15" (1/3) ... [2018-12-09 00:25:15,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6e9504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:25:15, skipping insertion in model container [2018-12-09 00:25:15,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:25:15" (2/3) ... [2018-12-09 00:25:15,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6e9504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:25:15, skipping insertion in model container [2018-12-09 00:25:15,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:25:15" (3/3) ... [2018-12-09 00:25:15,672 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product49_false-unreach-call_false-termination.cil.c [2018-12-09 00:25:15,680 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:25:15,686 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 00:25:15,697 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 00:25:15,716 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:25:15,716 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:25:15,716 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:25:15,716 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:25:15,716 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:25:15,716 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:25:15,716 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:25:15,716 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:25:15,729 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states. [2018-12-09 00:25:15,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 00:25:15,736 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:25:15,737 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] [2018-12-09 00:25:15,739 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:25:15,743 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:25:15,744 INFO L82 PathProgramCache]: Analyzing trace with hash 347417763, now seen corresponding path program 1 times [2018-12-09 00:25:15,745 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:25:15,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:15,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:25:15,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:15,775 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:25:15,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:25:15,881 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 00:25:15,882 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:25:15,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 00:25:15,882 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:25:15,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 00:25:15,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 00:25:15,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 00:25:15,895 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 2 states. [2018-12-09 00:25:15,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:25:15,918 INFO L93 Difference]: Finished difference Result 256 states and 317 transitions. [2018-12-09 00:25:15,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 00:25:15,919 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 00:25:15,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:25:15,925 INFO L225 Difference]: With dead ends: 256 [2018-12-09 00:25:15,925 INFO L226 Difference]: Without dead ends: 128 [2018-12-09 00:25:15,928 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 00:25:15,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2018-12-09 00:25:15,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2018-12-09 00:25:15,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-12-09 00:25:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2018-12-09 00:25:15,958 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2018-12-09 00:25:15,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:25:15,958 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2018-12-09 00:25:15,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 00:25:15,958 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2018-12-09 00:25:15,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 00:25:15,960 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:25:15,960 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] [2018-12-09 00:25:15,960 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:25:15,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:25:15,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1264392848, now seen corresponding path program 1 times [2018-12-09 00:25:15,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:25:15,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:15,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:25:15,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:15,962 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:25:15,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:25:16,011 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 00:25:16,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:25:16,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:25:16,012 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:25:16,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:25:16,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:25:16,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:25:16,013 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 3 states. [2018-12-09 00:25:16,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:25:16,025 INFO L93 Difference]: Finished difference Result 205 states and 239 transitions. [2018-12-09 00:25:16,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:25:16,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 00:25:16,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:25:16,026 INFO L225 Difference]: With dead ends: 205 [2018-12-09 00:25:16,026 INFO L226 Difference]: Without dead ends: 119 [2018-12-09 00:25:16,027 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 00:25:16,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-12-09 00:25:16,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-12-09 00:25:16,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-12-09 00:25:16,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2018-12-09 00:25:16,035 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2018-12-09 00:25:16,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:25:16,035 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2018-12-09 00:25:16,035 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:25:16,035 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2018-12-09 00:25:16,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-09 00:25:16,036 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:25:16,036 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] [2018-12-09 00:25:16,036 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:25:16,036 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:25:16,036 INFO L82 PathProgramCache]: Analyzing trace with hash -912661404, now seen corresponding path program 1 times [2018-12-09 00:25:16,036 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:25:16,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:16,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:25:16,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:16,037 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:25:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:25:16,124 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 00:25:16,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:25:16,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 00:25:16,124 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:25:16,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 00:25:16,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 00:25:16,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 00:25:16,125 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 7 states. [2018-12-09 00:25:16,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:25:16,279 INFO L93 Difference]: Finished difference Result 214 states and 253 transitions. [2018-12-09 00:25:16,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 00:25:16,279 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-09 00:25:16,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:25:16,281 INFO L225 Difference]: With dead ends: 214 [2018-12-09 00:25:16,281 INFO L226 Difference]: Without dead ends: 119 [2018-12-09 00:25:16,281 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 00:25:16,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2018-12-09 00:25:16,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2018-12-09 00:25:16,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-12-09 00:25:16,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2018-12-09 00:25:16,289 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2018-12-09 00:25:16,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:25:16,289 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2018-12-09 00:25:16,290 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 00:25:16,290 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2018-12-09 00:25:16,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-09 00:25:16,291 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:25:16,291 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] [2018-12-09 00:25:16,291 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:25:16,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:25:16,291 INFO L82 PathProgramCache]: Analyzing trace with hash -1115667263, now seen corresponding path program 1 times [2018-12-09 00:25:16,291 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:25:16,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:16,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:25:16,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:16,292 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:25:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:25:16,356 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 00:25:16,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:25:16,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-09 00:25:16,357 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:25:16,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-09 00:25:16,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-09 00:25:16,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-09 00:25:16,357 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 5 states. [2018-12-09 00:25:16,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:25:16,616 INFO L93 Difference]: Finished difference Result 308 states and 371 transitions. [2018-12-09 00:25:16,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 00:25:16,616 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2018-12-09 00:25:16,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:25:16,618 INFO L225 Difference]: With dead ends: 308 [2018-12-09 00:25:16,618 INFO L226 Difference]: Without dead ends: 213 [2018-12-09 00:25:16,619 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 00:25:16,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2018-12-09 00:25:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 195. [2018-12-09 00:25:16,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2018-12-09 00:25:16,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2018-12-09 00:25:16,637 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 64 [2018-12-09 00:25:16,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:25:16,638 INFO L480 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2018-12-09 00:25:16,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-09 00:25:16,638 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2018-12-09 00:25:16,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-12-09 00:25:16,639 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:25:16,639 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, 1, 1, 1, 1] [2018-12-09 00:25:16,639 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:25:16,639 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:25:16,639 INFO L82 PathProgramCache]: Analyzing trace with hash -146644890, now seen corresponding path program 1 times [2018-12-09 00:25:16,639 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:25:16,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:16,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:25:16,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:16,640 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:25:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:25:16,682 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 00:25:16,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:25:16,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 00:25:16,682 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:25:16,683 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 00:25:16,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 00:25:16,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:25:16,683 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand 6 states. [2018-12-09 00:25:16,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:25:16,819 INFO L93 Difference]: Finished difference Result 522 states and 616 transitions. [2018-12-09 00:25:16,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 00:25:16,820 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2018-12-09 00:25:16,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:25:16,823 INFO L225 Difference]: With dead ends: 522 [2018-12-09 00:25:16,823 INFO L226 Difference]: Without dead ends: 351 [2018-12-09 00:25:16,824 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 00:25:16,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-12-09 00:25:16,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 345. [2018-12-09 00:25:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-12-09 00:25:16,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 394 transitions. [2018-12-09 00:25:16,848 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 394 transitions. Word has length 78 [2018-12-09 00:25:16,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:25:16,849 INFO L480 AbstractCegarLoop]: Abstraction has 345 states and 394 transitions. [2018-12-09 00:25:16,849 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 00:25:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 394 transitions. [2018-12-09 00:25:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-09 00:25:16,850 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:25:16,850 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, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:25:16,850 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:25:16,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:25:16,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1582125086, now seen corresponding path program 1 times [2018-12-09 00:25:16,851 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:25:16,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:16,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:25:16,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:16,852 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:25:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:25:16,928 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 00:25:16,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:25:16,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 00:25:16,928 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:25:16,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 00:25:16,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 00:25:16,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 00:25:16,929 INFO L87 Difference]: Start difference. First operand 345 states and 394 transitions. Second operand 7 states. [2018-12-09 00:25:17,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:25:17,232 INFO L93 Difference]: Finished difference Result 378 states and 444 transitions. [2018-12-09 00:25:17,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 00:25:17,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 82 [2018-12-09 00:25:17,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:25:17,234 INFO L225 Difference]: With dead ends: 378 [2018-12-09 00:25:17,234 INFO L226 Difference]: Without dead ends: 375 [2018-12-09 00:25:17,234 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 00:25:17,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2018-12-09 00:25:17,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 345. [2018-12-09 00:25:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 345 states. [2018-12-09 00:25:17,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 393 transitions. [2018-12-09 00:25:17,249 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 393 transitions. Word has length 82 [2018-12-09 00:25:17,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:25:17,249 INFO L480 AbstractCegarLoop]: Abstraction has 345 states and 393 transitions. [2018-12-09 00:25:17,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 00:25:17,250 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 393 transitions. [2018-12-09 00:25:17,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 00:25:17,250 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:25:17,251 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:25:17,251 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:25:17,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:25:17,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1509243893, now seen corresponding path program 1 times [2018-12-09 00:25:17,251 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:25:17,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:17,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:25:17,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:17,252 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:25:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:25:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:25:17,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:25:17,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 00:25:17,298 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:25:17,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 00:25:17,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 00:25:17,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:25:17,298 INFO L87 Difference]: Start difference. First operand 345 states and 393 transitions. Second operand 6 states. [2018-12-09 00:25:17,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:25:17,328 INFO L93 Difference]: Finished difference Result 676 states and 782 transitions. [2018-12-09 00:25:17,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 00:25:17,329 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-12-09 00:25:17,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:25:17,331 INFO L225 Difference]: With dead ends: 676 [2018-12-09 00:25:17,331 INFO L226 Difference]: Without dead ends: 355 [2018-12-09 00:25:17,332 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 00:25:17,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2018-12-09 00:25:17,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 355. [2018-12-09 00:25:17,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 355 states. [2018-12-09 00:25:17,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 403 transitions. [2018-12-09 00:25:17,350 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 403 transitions. Word has length 83 [2018-12-09 00:25:17,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:25:17,350 INFO L480 AbstractCegarLoop]: Abstraction has 355 states and 403 transitions. [2018-12-09 00:25:17,350 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 00:25:17,350 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 403 transitions. [2018-12-09 00:25:17,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 00:25:17,351 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:25:17,351 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:25:17,351 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:25:17,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:25:17,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1531876147, now seen corresponding path program 1 times [2018-12-09 00:25:17,352 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:25:17,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:17,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:25:17,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:17,353 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:25:17,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:25:17,427 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 00:25:17,427 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:25:17,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 00:25:17,427 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:25:17,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 00:25:17,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 00:25:17,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 00:25:17,428 INFO L87 Difference]: Start difference. First operand 355 states and 403 transitions. Second operand 8 states. [2018-12-09 00:25:17,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:25:17,464 INFO L93 Difference]: Finished difference Result 700 states and 816 transitions. [2018-12-09 00:25:17,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 00:25:17,464 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2018-12-09 00:25:17,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:25:17,466 INFO L225 Difference]: With dead ends: 700 [2018-12-09 00:25:17,466 INFO L226 Difference]: Without dead ends: 369 [2018-12-09 00:25:17,467 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 00:25:17,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2018-12-09 00:25:17,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 363. [2018-12-09 00:25:17,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2018-12-09 00:25:17,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 411 transitions. [2018-12-09 00:25:17,483 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 411 transitions. Word has length 83 [2018-12-09 00:25:17,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:25:17,483 INFO L480 AbstractCegarLoop]: Abstraction has 363 states and 411 transitions. [2018-12-09 00:25:17,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 00:25:17,484 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 411 transitions. [2018-12-09 00:25:17,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 00:25:17,485 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:25:17,485 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:25:17,485 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:25:17,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:25:17,485 INFO L82 PathProgramCache]: Analyzing trace with hash -1737599150, now seen corresponding path program 1 times [2018-12-09 00:25:17,485 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:25:17,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:17,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:25:17,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:17,486 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:25:17,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:25:17,530 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 00:25:17,530 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:25:17,530 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 00:25:17,530 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:25:17,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 00:25:17,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 00:25:17,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 00:25:17,531 INFO L87 Difference]: Start difference. First operand 363 states and 411 transitions. Second operand 4 states. [2018-12-09 00:25:17,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:25:17,646 INFO L93 Difference]: Finished difference Result 1097 states and 1312 transitions. [2018-12-09 00:25:17,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:25:17,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2018-12-09 00:25:17,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:25:17,650 INFO L225 Difference]: With dead ends: 1097 [2018-12-09 00:25:17,650 INFO L226 Difference]: Without dead ends: 758 [2018-12-09 00:25:17,651 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 00:25:17,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2018-12-09 00:25:17,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 487. [2018-12-09 00:25:17,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 487 states. [2018-12-09 00:25:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 548 transitions. [2018-12-09 00:25:17,683 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 548 transitions. Word has length 83 [2018-12-09 00:25:17,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:25:17,683 INFO L480 AbstractCegarLoop]: Abstraction has 487 states and 548 transitions. [2018-12-09 00:25:17,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 00:25:17,684 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 548 transitions. [2018-12-09 00:25:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-12-09 00:25:17,685 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:25:17,685 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:25:17,685 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 00:25:17,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:25:17,686 INFO L82 PathProgramCache]: Analyzing trace with hash -383074824, now seen corresponding path program 1 times [2018-12-09 00:25:17,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:25:17,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:17,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:25:17,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:25:17,687 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:25:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:25:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 00:25:17,793 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 00:25:17,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:25:17 BoogieIcfgContainer [2018-12-09 00:25:17,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:25:17,891 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:25:17,891 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:25:17,891 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:25:17,892 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:25:15" (3/4) ... [2018-12-09 00:25:17,894 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 00:25:17,977 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3a52a002-1ae2-4b4f-9f94-113a7e332bf5/bin-2019/utaipan/witness.graphml [2018-12-09 00:25:17,977 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:25:17,977 INFO L168 Benchmark]: Toolchain (without parser) took 2969.15 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 221.2 MB). Free memory was 948.1 MB in the beginning and 910.2 MB in the end (delta: 37.9 MB). Peak memory consumption was 259.2 MB. Max. memory is 11.5 GB. [2018-12-09 00:25:17,978 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:25:17,978 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -177.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:25:17,979 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.90 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 00:25:17,979 INFO L168 Benchmark]: Boogie Preprocessor took 25.65 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:25:17,979 INFO L168 Benchmark]: RCFGBuilder took 314.26 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: 53.1 MB). Peak memory consumption was 53.1 MB. Max. memory is 11.5 GB. [2018-12-09 00:25:17,979 INFO L168 Benchmark]: TraceAbstraction took 2223.67 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 82.8 MB). Free memory was 1.1 GB in the beginning and 943.1 MB in the end (delta: 122.7 MB). Peak memory consumption was 205.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:25:17,979 INFO L168 Benchmark]: Witness Printer took 85.94 ms. Allocated memory is still 1.3 GB. Free memory was 943.1 MB in the beginning and 910.2 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:25:17,980 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 292.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 948.1 MB in the beginning and 1.1 GB in the end (delta: -177.7 MB). Peak memory consumption was 27.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.90 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 25.65 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 314.26 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: 53.1 MB). Peak memory consumption was 53.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2223.67 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 82.8 MB). Free memory was 1.1 GB in the beginning and 943.1 MB in the end (delta: 122.7 MB). Peak memory consumption was 205.5 MB. Max. memory is 11.5 GB. * Witness Printer took 85.94 ms. Allocated memory is still 1.3 GB. Free memory was 943.1 MB in the beginning and 910.2 MB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 950]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L69] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L545] int pumpRunning = 0; [L546] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L150] int retValue_acc ; [L151] 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] [L155] 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] [L156] 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] [L157] 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] [L833] int retValue_acc ; [L836] retValue_acc = 1 [L837] 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] [L157] 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] [L157] tmp = valid_product() [L159] 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] [L161] 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] [L162] 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] [L141] 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] [L743] int splverifierCounter ; [L744] int tmp ; [L745] int tmp___0 ; [L746] int tmp___1 ; [L747] int tmp___2 ; [L750] 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] [L752] 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] [L754] 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] [L760] tmp = __VERIFIER_nondet_int() [L762] 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] [L764] 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] [L861] COND TRUE waterLevel < 2 [L862] 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] [L764] 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] [L770] tmp___0 = __VERIFIER_nondet_int() [L772] COND TRUE \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=1, waterLevel=2] [L774] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L873] COND FALSE !(\read(methaneLevelCritical)) [L876] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L774] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L780] tmp___2 = __VERIFIER_nondet_int() [L782] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___2=1, waterLevel=2] [L795] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L552] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L559] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L561] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L607] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L610] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L625] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L581] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L584] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L586] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L704] int retValue_acc ; [L705] int tmp ; [L706] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L710] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L923] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L926] COND FALSE !(waterLevel < 2) [L930] retValue_acc = 0 [L931] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L710] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L710] tmp = isHighWaterSensorDry() [L712] COND FALSE !(\read(tmp)) [L715] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L717] retValue_acc = tmp___0 [L718] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L586] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L586] tmp = isHighWaterLevel() [L588] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L590] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L635] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L590] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L625] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L561] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L567] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L49] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = isMethaneLevelCritical() [L51] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L659] int retValue_acc ; [L662] retValue_acc = pumpRunning [L663] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L950] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 27 procedures, 141 locations, 1 error locations. UNSAFE Result, 2.1s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1352 SDtfs, 763 SDslu, 2817 SDs, 0 SdLazy, 956 SolverSat, 215 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=487occurred in iteration=9, 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 331 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 704 NumberOfCodeBlocks, 704 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 608 ConstructedInterpolants, 0 QuantifiedInterpolants, 74237 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...