./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product36_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product36_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/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 9eb4b34c09edb6dce3c64c5d30aa92b31214d915 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:52:53,681 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 15:52:53,682 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 15:52:53,687 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 15:52:53,688 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 15:52:53,688 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 15:52:53,689 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 15:52:53,690 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 15:52:53,691 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 15:52:53,691 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 15:52:53,691 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 15:52:53,691 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 15:52:53,692 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 15:52:53,692 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 15:52:53,693 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 15:52:53,693 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 15:52:53,694 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 15:52:53,695 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 15:52:53,696 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 15:52:53,696 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 15:52:53,697 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 15:52:53,697 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 15:52:53,698 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 15:52:53,699 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 15:52:53,699 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 15:52:53,699 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 15:52:53,700 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 15:52:53,700 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 15:52:53,700 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 15:52:53,701 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 15:52:53,701 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 15:52:53,701 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 15:52:53,702 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 15:52:53,702 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 15:52:53,702 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 15:52:53,702 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 15:52:53,703 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 15:52:53,710 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 15:52:53,710 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 15:52:53,710 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 15:52:53,711 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 15:52:53,711 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 15:52:53,711 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 15:52:53,711 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 15:52:53,711 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 15:52:53,711 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 15:52:53,711 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 15:52:53,711 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 15:52:53,711 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 15:52:53,711 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 15:52:53,712 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 15:52:53,712 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 15:52:53,712 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 15:52:53,712 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 15:52:53,712 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 15:52:53,712 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 15:52:53,712 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 15:52:53,712 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 15:52:53,712 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 15:52:53,712 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 15:52:53,713 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 15:52:53,713 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 15:52:53,713 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 15:52:53,713 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 15:52:53,713 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 15:52:53,713 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 15:52:53,713 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 15:52:53,713 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 15:52:53,713 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 15:52:53,713 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 15:52:53,713 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 15:52:53,714 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 15:52:53,714 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 15:52:53,714 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_234e3ed6-e476-4b9f-a482-595a860ee6a9/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 -> 9eb4b34c09edb6dce3c64c5d30aa92b31214d915 [2018-12-09 15:52:53,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 15:52:53,737 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 15:52:53,739 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 15:52:53,740 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 15:52:53,740 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 15:52:53,740 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product36_false-unreach-call_false-termination.cil.c [2018-12-09 15:52:53,778 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/data/ada8823f1/a84d244abf01463d841f6bb344ab98ee/FLAG7a5745493 [2018-12-09 15:52:54,190 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 15:52:54,190 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/sv-benchmarks/c/product-lines/minepump_spec1_product36_false-unreach-call_false-termination.cil.c [2018-12-09 15:52:54,196 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/data/ada8823f1/a84d244abf01463d841f6bb344ab98ee/FLAG7a5745493 [2018-12-09 15:52:54,204 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/data/ada8823f1/a84d244abf01463d841f6bb344ab98ee [2018-12-09 15:52:54,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 15:52:54,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 15:52:54,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 15:52:54,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 15:52:54,209 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 15:52:54,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cc82c98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54, skipping insertion in model container [2018-12-09 15:52:54,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 15:52:54,235 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 15:52:54,381 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:52:54,421 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 15:52:54,464 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 15:52:54,478 INFO L195 MainTranslator]: Completed translation [2018-12-09 15:52:54,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54 WrapperNode [2018-12-09 15:52:54,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 15:52:54,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 15:52:54,479 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 15:52:54,479 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 15:52:54,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,498 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 15:52:54,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 15:52:54,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 15:52:54,498 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 15:52:54,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... [2018-12-09 15:52:54,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 15:52:54,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 15:52:54,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 15:52:54,520 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 15:52:54,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/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 15:52:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 15:52:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 15:52:54,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 15:52:54,559 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 15:52:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 15:52:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 15:52:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 15:52:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 15:52:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 15:52:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 15:52:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 15:52:54,560 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 15:52:54,560 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 15:52:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 15:52:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 15:52:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 15:52:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 15:52:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 15:52:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 15:52:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 15:52:54,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 15:52:54,561 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 15:52:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 15:52:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 15:52:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 15:52:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 15:52:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 15:52:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 15:52:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 15:52:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 15:52:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 15:52:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 15:52:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 15:52:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 15:52:54,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 15:52:54,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 15:52:54,563 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 15:52:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 15:52:54,563 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 15:52:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 15:52:54,563 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 15:52:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 15:52:54,563 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 15:52:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 15:52:54,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 15:52:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 15:52:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 15:52:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 15:52:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 15:52:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 15:52:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 15:52:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 15:52:54,564 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 15:52:54,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 15:52:54,867 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 15:52:54,867 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 15:52:54,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:52:54 BoogieIcfgContainer [2018-12-09 15:52:54,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 15:52:54,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 15:52:54,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 15:52:54,870 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 15:52:54,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 03:52:54" (1/3) ... [2018-12-09 15:52:54,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d71a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:52:54, skipping insertion in model container [2018-12-09 15:52:54,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 03:52:54" (2/3) ... [2018-12-09 15:52:54,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d71a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 03:52:54, skipping insertion in model container [2018-12-09 15:52:54,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:52:54" (3/3) ... [2018-12-09 15:52:54,872 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product36_false-unreach-call_false-termination.cil.c [2018-12-09 15:52:54,879 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 15:52:54,884 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 15:52:54,896 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 15:52:54,921 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 15:52:54,921 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 15:52:54,922 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 15:52:54,922 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 15:52:54,922 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 15:52:54,922 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 15:52:54,922 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 15:52:54,922 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 15:52:54,937 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states. [2018-12-09 15:52:54,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 15:52:54,943 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:54,944 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 15:52:54,945 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:54,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:54,950 INFO L82 PathProgramCache]: Analyzing trace with hash -1714410462, now seen corresponding path program 1 times [2018-12-09 15:52:54,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:54,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:54,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:54,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:54,985 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:55,123 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 15:52:55,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:52:55,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 15:52:55,124 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:52:55,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 15:52:55,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 15:52:55,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 15:52:55,136 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 2 states. [2018-12-09 15:52:55,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:55,157 INFO L93 Difference]: Finished difference Result 236 states and 291 transitions. [2018-12-09 15:52:55,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 15:52:55,158 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 15:52:55,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:55,164 INFO L225 Difference]: With dead ends: 236 [2018-12-09 15:52:55,164 INFO L226 Difference]: Without dead ends: 118 [2018-12-09 15:52:55,166 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 15:52:55,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2018-12-09 15:52:55,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-12-09 15:52:55,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-12-09 15:52:55,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 137 transitions. [2018-12-09 15:52:55,196 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 137 transitions. Word has length 46 [2018-12-09 15:52:55,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:55,197 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 137 transitions. [2018-12-09 15:52:55,197 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 15:52:55,197 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 137 transitions. [2018-12-09 15:52:55,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 15:52:55,198 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:55,199 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 15:52:55,199 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:55,199 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:55,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1782450311, now seen corresponding path program 1 times [2018-12-09 15:52:55,199 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:55,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:55,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:55,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:55,200 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:55,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:55,254 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 15:52:55,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:52:55,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 15:52:55,255 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:52:55,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 15:52:55,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 15:52:55,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 15:52:55,256 INFO L87 Difference]: Start difference. First operand 118 states and 137 transitions. Second operand 3 states. [2018-12-09 15:52:55,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:55,267 INFO L93 Difference]: Finished difference Result 172 states and 199 transitions. [2018-12-09 15:52:55,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 15:52:55,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 15:52:55,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:55,268 INFO L225 Difference]: With dead ends: 172 [2018-12-09 15:52:55,268 INFO L226 Difference]: Without dead ends: 109 [2018-12-09 15:52:55,269 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 15:52:55,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-12-09 15:52:55,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-12-09 15:52:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-12-09 15:52:55,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 125 transitions. [2018-12-09 15:52:55,276 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 125 transitions. Word has length 47 [2018-12-09 15:52:55,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:55,276 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 125 transitions. [2018-12-09 15:52:55,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 15:52:55,276 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 125 transitions. [2018-12-09 15:52:55,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 15:52:55,277 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:55,277 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 15:52:55,277 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:55,277 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:55,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1215741066, now seen corresponding path program 1 times [2018-12-09 15:52:55,277 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:55,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:55,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:55,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:55,278 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:55,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:55,362 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 15:52:55,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:52:55,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:52:55,362 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:52:55,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:52:55,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:52:55,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:52:55,363 INFO L87 Difference]: Start difference. First operand 109 states and 125 transitions. Second operand 7 states. [2018-12-09 15:52:55,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:55,555 INFO L93 Difference]: Finished difference Result 329 states and 395 transitions. [2018-12-09 15:52:55,555 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 15:52:55,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 15:52:55,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:55,557 INFO L225 Difference]: With dead ends: 329 [2018-12-09 15:52:55,557 INFO L226 Difference]: Without dead ends: 244 [2018-12-09 15:52:55,557 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 15:52:55,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2018-12-09 15:52:55,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 220. [2018-12-09 15:52:55,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2018-12-09 15:52:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 262 transitions. [2018-12-09 15:52:55,575 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 262 transitions. Word has length 52 [2018-12-09 15:52:55,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:55,575 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 262 transitions. [2018-12-09 15:52:55,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:52:55,575 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 262 transitions. [2018-12-09 15:52:55,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 15:52:55,576 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:55,576 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 15:52:55,576 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:55,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:55,577 INFO L82 PathProgramCache]: Analyzing trace with hash 448105606, now seen corresponding path program 1 times [2018-12-09 15:52:55,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:55,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:55,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:55,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:55,578 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:55,629 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 15:52:55,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:52:55,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 15:52:55,630 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:52:55,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 15:52:55,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 15:52:55,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 15:52:55,631 INFO L87 Difference]: Start difference. First operand 220 states and 262 transitions. Second operand 6 states. [2018-12-09 15:52:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:55,752 INFO L93 Difference]: Finished difference Result 597 states and 734 transitions. [2018-12-09 15:52:55,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 15:52:55,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-09 15:52:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:55,756 INFO L225 Difference]: With dead ends: 597 [2018-12-09 15:52:55,756 INFO L226 Difference]: Without dead ends: 401 [2018-12-09 15:52:55,757 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 15:52:55,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2018-12-09 15:52:55,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 395. [2018-12-09 15:52:55,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2018-12-09 15:52:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 474 transitions. [2018-12-09 15:52:55,790 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 474 transitions. Word has length 57 [2018-12-09 15:52:55,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:55,790 INFO L480 AbstractCegarLoop]: Abstraction has 395 states and 474 transitions. [2018-12-09 15:52:55,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 15:52:55,790 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 474 transitions. [2018-12-09 15:52:55,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 15:52:55,793 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:55,793 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 15:52:55,793 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:55,793 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:55,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1768579094, now seen corresponding path program 1 times [2018-12-09 15:52:55,794 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:55,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:55,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:55,794 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:55,795 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:55,860 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 15:52:55,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:52:55,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 15:52:55,860 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:52:55,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 15:52:55,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 15:52:55,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 15:52:55,861 INFO L87 Difference]: Start difference. First operand 395 states and 474 transitions. Second operand 7 states. [2018-12-09 15:52:56,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:56,217 INFO L93 Difference]: Finished difference Result 1050 states and 1351 transitions. [2018-12-09 15:52:56,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 15:52:56,217 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-12-09 15:52:56,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:56,220 INFO L225 Difference]: With dead ends: 1050 [2018-12-09 15:52:56,220 INFO L226 Difference]: Without dead ends: 679 [2018-12-09 15:52:56,222 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 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 15:52:56,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2018-12-09 15:52:56,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 593. [2018-12-09 15:52:56,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2018-12-09 15:52:56,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 713 transitions. [2018-12-09 15:52:56,254 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 713 transitions. Word has length 61 [2018-12-09 15:52:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:56,255 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 713 transitions. [2018-12-09 15:52:56,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 15:52:56,255 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 713 transitions. [2018-12-09 15:52:56,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 15:52:56,256 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:56,256 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] [2018-12-09 15:52:56,257 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:56,257 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:56,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1896487449, now seen corresponding path program 1 times [2018-12-09 15:52:56,257 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:56,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:56,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:56,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:56,258 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:56,321 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 15:52:56,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:52:56,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 15:52:56,322 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:52:56,322 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 15:52:56,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 15:52:56,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 15:52:56,323 INFO L87 Difference]: Start difference. First operand 593 states and 713 transitions. Second operand 6 states. [2018-12-09 15:52:56,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:56,356 INFO L93 Difference]: Finished difference Result 1182 states and 1444 transitions. [2018-12-09 15:52:56,356 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 15:52:56,356 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2018-12-09 15:52:56,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:56,358 INFO L225 Difference]: With dead ends: 1182 [2018-12-09 15:52:56,358 INFO L226 Difference]: Without dead ends: 613 [2018-12-09 15:52:56,359 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 15:52:56,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2018-12-09 15:52:56,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2018-12-09 15:52:56,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 613 states. [2018-12-09 15:52:56,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 733 transitions. [2018-12-09 15:52:56,380 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 733 transitions. Word has length 79 [2018-12-09 15:52:56,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:56,381 INFO L480 AbstractCegarLoop]: Abstraction has 613 states and 733 transitions. [2018-12-09 15:52:56,381 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 15:52:56,381 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 733 transitions. [2018-12-09 15:52:56,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 15:52:56,382 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:56,382 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] [2018-12-09 15:52:56,382 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:56,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:56,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1387014359, now seen corresponding path program 1 times [2018-12-09 15:52:56,382 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:56,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:56,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:56,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:56,383 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:56,449 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 15:52:56,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:52:56,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 15:52:56,450 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:52:56,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 15:52:56,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 15:52:56,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 15:52:56,450 INFO L87 Difference]: Start difference. First operand 613 states and 733 transitions. Second operand 8 states. [2018-12-09 15:52:56,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:56,481 INFO L93 Difference]: Finished difference Result 1230 states and 1514 transitions. [2018-12-09 15:52:56,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 15:52:56,481 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 79 [2018-12-09 15:52:56,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:56,484 INFO L225 Difference]: With dead ends: 1230 [2018-12-09 15:52:56,484 INFO L226 Difference]: Without dead ends: 641 [2018-12-09 15:52:56,486 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 15:52:56,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2018-12-09 15:52:56,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 629. [2018-12-09 15:52:56,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2018-12-09 15:52:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 749 transitions. [2018-12-09 15:52:56,518 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 749 transitions. Word has length 79 [2018-12-09 15:52:56,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:56,518 INFO L480 AbstractCegarLoop]: Abstraction has 629 states and 749 transitions. [2018-12-09 15:52:56,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 15:52:56,518 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 749 transitions. [2018-12-09 15:52:56,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-12-09 15:52:56,519 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:56,520 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] [2018-12-09 15:52:56,520 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:56,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:56,520 INFO L82 PathProgramCache]: Analyzing trace with hash -623089482, now seen corresponding path program 1 times [2018-12-09 15:52:56,520 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:56,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:56,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:56,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:56,521 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:56,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 15:52:56,559 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 15:52:56,559 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 15:52:56,559 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 15:52:56,559 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 15:52:56,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 15:52:56,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 15:52:56,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 15:52:56,560 INFO L87 Difference]: Start difference. First operand 629 states and 749 transitions. Second operand 4 states. [2018-12-09 15:52:56,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 15:52:56,709 INFO L93 Difference]: Finished difference Result 2071 states and 2588 transitions. [2018-12-09 15:52:56,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 15:52:56,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2018-12-09 15:52:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 15:52:56,716 INFO L225 Difference]: With dead ends: 2071 [2018-12-09 15:52:56,716 INFO L226 Difference]: Without dead ends: 1466 [2018-12-09 15:52:56,718 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 15:52:56,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1466 states. [2018-12-09 15:52:56,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1466 to 1435. [2018-12-09 15:52:56,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1435 states. [2018-12-09 15:52:56,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1743 transitions. [2018-12-09 15:52:56,766 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1743 transitions. Word has length 79 [2018-12-09 15:52:56,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 15:52:56,766 INFO L480 AbstractCegarLoop]: Abstraction has 1435 states and 1743 transitions. [2018-12-09 15:52:56,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 15:52:56,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1743 transitions. [2018-12-09 15:52:56,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-09 15:52:56,768 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 15:52:56,768 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 15:52:56,768 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 15:52:56,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 15:52:56,768 INFO L82 PathProgramCache]: Analyzing trace with hash 132962460, now seen corresponding path program 1 times [2018-12-09 15:52:56,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 15:52:56,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:56,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 15:52:56,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 15:52:56,769 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 15:52:56,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:52:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 15:52:56,848 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 15:52:56,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 03:52:56 BoogieIcfgContainer [2018-12-09 15:52:56,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 15:52:56,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 15:52:56,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 15:52:56,929 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 15:52:56,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 03:52:54" (3/4) ... [2018-12-09 15:52:56,932 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 15:52:57,012 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_234e3ed6-e476-4b9f-a482-595a860ee6a9/bin-2019/utaipan/witness.graphml [2018-12-09 15:52:57,012 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 15:52:57,013 INFO L168 Benchmark]: Toolchain (without parser) took 2806.35 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 223.9 MB). Free memory was 950.6 MB in the beginning and 942.2 MB in the end (delta: 8.5 MB). Peak memory consumption was 232.3 MB. Max. memory is 11.5 GB. [2018-12-09 15:52:57,013 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 15:52:57,013 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-12-09 15:52:57,014 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.36 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 15:52:57,014 INFO L168 Benchmark]: Boogie Preprocessor took 21.50 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 15:52:57,014 INFO L168 Benchmark]: RCFGBuilder took 347.47 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: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. [2018-12-09 15:52:57,014 INFO L168 Benchmark]: TraceAbstraction took 2060.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 90.7 MB). Free memory was 1.1 GB in the beginning and 976.2 MB in the end (delta: 89.7 MB). Peak memory consumption was 180.4 MB. Max. memory is 11.5 GB. [2018-12-09 15:52:57,014 INFO L168 Benchmark]: Witness Printer took 83.09 ms. Allocated memory is still 1.3 GB. Free memory was 970.5 MB in the beginning and 942.2 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2018-12-09 15:52:57,015 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 271.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -169.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.36 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 21.50 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 347.47 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: 50.7 MB). Peak memory consumption was 50.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2060.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 90.7 MB). Free memory was 1.1 GB in the beginning and 976.2 MB in the end (delta: 89.7 MB). Peak memory consumption was 180.4 MB. Max. memory is 11.5 GB. * Witness Printer took 83.09 ms. Allocated memory is still 1.3 GB. Free memory was 970.5 MB in the beginning and 942.2 MB in the end (delta: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L610] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L833] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=190, \old(head)=199, \old(head)=172, \old(methaneLevelCritical)=145, \old(pumpRunning)=139, \old(systemActive)=138, \old(waterLevel)=143, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L906] int retValue_acc ; [L907] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L911] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L912] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L913] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L432] int retValue_acc ; [L435] retValue_acc = 1 [L436] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L913] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L917] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L918] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L900] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L344] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L346] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L352] tmp = __VERIFIER_nondet_int() [L354] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L356] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L257] COND TRUE waterLevel < 2 [L258] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L356] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L366] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L269] COND FALSE !(\read(methaneLevelCritical)) [L272] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L366] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND FALSE !(\read(tmp___2)) [L380] tmp___1 = __VERIFIER_nondet_int() [L382] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L391] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L68] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L75] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L77] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L97] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L100] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L102] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L194] int retValue_acc ; [L195] int tmp ; [L196] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L319] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L322] COND FALSE !(waterLevel < 2) [L326] retValue_acc = 0 [L327] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L200] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L200] tmp = isHighWaterSensorDry() [L202] COND FALSE !(\read(tmp)) [L205] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L207] retValue_acc = tmp___0 [L208] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \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] [L102] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L102] tmp = isHighWaterLevel() [L104] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L106] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L125] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L106] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L77] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L83] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L808] int tmp ; [L809] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L813] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L813] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L813] tmp = isMethaneLevelCritical() [L815] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L817] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L149] int retValue_acc ; [L152] retValue_acc = pumpRunning [L153] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L817] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L817] tmp___0 = isPumpRunning() [L819] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L821] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L44] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 26 procedures, 131 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1143 SDtfs, 617 SDslu, 2734 SDs, 0 SdLazy, 762 SolverSat, 109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1435occurred in iteration=8, 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: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 159 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 583 NumberOfCodeBlocks, 583 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 492 ConstructedInterpolants, 0 QuantifiedInterpolants, 53148 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...