./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product39_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_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product39_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/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 f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 14:39:15,090 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 14:39:15,091 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 14:39:15,097 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 14:39:15,097 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 14:39:15,098 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 14:39:15,099 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 14:39:15,099 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 14:39:15,100 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 14:39:15,100 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 14:39:15,101 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 14:39:15,101 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 14:39:15,101 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 14:39:15,102 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 14:39:15,102 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 14:39:15,103 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 14:39:15,103 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 14:39:15,104 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 14:39:15,105 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 14:39:15,106 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 14:39:15,106 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 14:39:15,107 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 14:39:15,108 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 14:39:15,108 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 14:39:15,108 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 14:39:15,108 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 14:39:15,109 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 14:39:15,109 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 14:39:15,110 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 14:39:15,110 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 14:39:15,110 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 14:39:15,111 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 14:39:15,111 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 14:39:15,111 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 14:39:15,112 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 14:39:15,112 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 14:39:15,112 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 14:39:15,119 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 14:39:15,119 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 14:39:15,120 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 14:39:15,120 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 14:39:15,120 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 14:39:15,120 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 14:39:15,120 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 14:39:15,120 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 14:39:15,120 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 14:39:15,121 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 14:39:15,121 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 14:39:15,121 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 14:39:15,121 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 14:39:15,121 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 14:39:15,121 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 14:39:15,121 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 14:39:15,122 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 14:39:15,122 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 14:39:15,122 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 14:39:15,122 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 14:39:15,122 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 14:39:15,122 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 14:39:15,122 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 14:39:15,122 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 14:39:15,122 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 14:39:15,122 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 14:39:15,122 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 14:39:15,123 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 14:39:15,123 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 14:39:15,123 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 14:39:15,123 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 14:39:15,123 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 14:39:15,123 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 14:39:15,123 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 14:39:15,123 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 14:39:15,123 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 14:39:15,123 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_19fc74cd-d8db-46c8-9934-6a24492f579b/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 -> f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe [2018-12-02 14:39:15,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 14:39:15,147 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 14:39:15,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 14:39:15,150 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 14:39:15,150 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 14:39:15,151 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product39_false-unreach-call_false-termination.cil.c [2018-12-02 14:39:15,184 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/data/6187bf9bb/2c41221f30964619b8391046191b182b/FLAG52adc2502 [2018-12-02 14:39:15,703 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 14:39:15,704 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/sv-benchmarks/c/product-lines/minepump_spec1_product39_false-unreach-call_false-termination.cil.c [2018-12-02 14:39:15,710 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/data/6187bf9bb/2c41221f30964619b8391046191b182b/FLAG52adc2502 [2018-12-02 14:39:16,182 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/data/6187bf9bb/2c41221f30964619b8391046191b182b [2018-12-02 14:39:16,185 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 14:39:16,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 14:39:16,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 14:39:16,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 14:39:16,189 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 14:39:16,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a96ab85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16, skipping insertion in model container [2018-12-02 14:39:16,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 14:39:16,217 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 14:39:16,359 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:39:16,398 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 14:39:16,437 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 14:39:16,451 INFO L195 MainTranslator]: Completed translation [2018-12-02 14:39:16,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16 WrapperNode [2018-12-02 14:39:16,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 14:39:16,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 14:39:16,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 14:39:16,452 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 14:39:16,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,471 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 14:39:16,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 14:39:16,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 14:39:16,479 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 14:39:16,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,506 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (1/1) ... [2018-12-02 14:39:16,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 14:39:16,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 14:39:16,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 14:39:16,511 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 14:39:16,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 14:39:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 14:39:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 14:39:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 14:39:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 14:39:16,557 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-02 14:39:16,557 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-02 14:39:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 14:39:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 14:39:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 14:39:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 14:39:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 14:39:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 14:39:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 14:39:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 14:39:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 14:39:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 14:39:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 14:39:16,558 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 14:39:16,558 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 14:39:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 14:39:16,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 14:39:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 14:39:16,559 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 14:39:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 14:39:16,559 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 14:39:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 14:39:16,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 14:39:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 14:39:16,559 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 14:39:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 14:39:16,559 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 14:39:16,559 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 14:39:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 14:39:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 14:39:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 14:39:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 14:39:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 14:39:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 14:39:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 14:39:16,560 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 14:39:16,560 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 14:39:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 14:39:16,561 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 14:39:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 14:39:16,561 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 14:39:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 14:39:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 14:39:16,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 14:39:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 14:39:16,561 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 14:39:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 14:39:16,561 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 14:39:16,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 14:39:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 14:39:16,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-02 14:39:16,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-02 14:39:16,916 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 14:39:16,916 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 14:39:16,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:39:16 BoogieIcfgContainer [2018-12-02 14:39:16,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 14:39:16,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 14:39:16,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 14:39:16,919 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 14:39:16,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:39:16" (1/3) ... [2018-12-02 14:39:16,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ea1b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:39:16, skipping insertion in model container [2018-12-02 14:39:16,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:39:16" (2/3) ... [2018-12-02 14:39:16,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ea1b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:39:16, skipping insertion in model container [2018-12-02 14:39:16,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:39:16" (3/3) ... [2018-12-02 14:39:16,921 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product39_false-unreach-call_false-termination.cil.c [2018-12-02 14:39:16,927 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 14:39:16,932 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 14:39:16,941 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 14:39:16,959 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 14:39:16,959 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 14:39:16,959 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 14:39:16,959 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 14:39:16,959 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 14:39:16,959 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 14:39:16,959 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 14:39:16,959 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 14:39:16,970 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states. [2018-12-02 14:39:16,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 14:39:16,975 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:39:16,975 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] [2018-12-02 14:39:16,977 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:39:16,980 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:39:16,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1311452861, now seen corresponding path program 1 times [2018-12-02 14:39:16,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:39:17,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:17,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:39:17,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:17,010 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:39:17,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:39:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:39:17,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:39:17,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 14:39:17,116 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:39:17,120 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 14:39:17,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 14:39:17,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 14:39:17,129 INFO L87 Difference]: Start difference. First operand 142 states. Second operand 2 states. [2018-12-02 14:39:17,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:39:17,152 INFO L93 Difference]: Finished difference Result 258 states and 323 transitions. [2018-12-02 14:39:17,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 14:39:17,153 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 14:39:17,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:39:17,160 INFO L225 Difference]: With dead ends: 258 [2018-12-02 14:39:17,160 INFO L226 Difference]: Without dead ends: 129 [2018-12-02 14:39:17,162 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 14:39:17,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2018-12-02 14:39:17,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2018-12-02 14:39:17,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2018-12-02 14:39:17,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 153 transitions. [2018-12-02 14:39:17,192 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 153 transitions. Word has length 46 [2018-12-02 14:39:17,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:39:17,193 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 153 transitions. [2018-12-02 14:39:17,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 14:39:17,193 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 153 transitions. [2018-12-02 14:39:17,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 14:39:17,194 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:39:17,195 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] [2018-12-02 14:39:17,195 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:39:17,195 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:39:17,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1050221383, now seen corresponding path program 1 times [2018-12-02 14:39:17,195 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:39:17,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:17,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:39:17,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:17,196 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:39:17,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:39:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:39:17,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:39:17,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 14:39:17,245 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:39:17,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 14:39:17,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 14:39:17,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 14:39:17,246 INFO L87 Difference]: Start difference. First operand 129 states and 153 transitions. Second operand 3 states. [2018-12-02 14:39:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:39:17,259 INFO L93 Difference]: Finished difference Result 201 states and 237 transitions. [2018-12-02 14:39:17,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 14:39:17,259 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 14:39:17,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:39:17,260 INFO L225 Difference]: With dead ends: 201 [2018-12-02 14:39:17,260 INFO L226 Difference]: Without dead ends: 120 [2018-12-02 14:39:17,261 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 14:39:17,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2018-12-02 14:39:17,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2018-12-02 14:39:17,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2018-12-02 14:39:17,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 141 transitions. [2018-12-02 14:39:17,268 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 141 transitions. Word has length 47 [2018-12-02 14:39:17,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:39:17,268 INFO L480 AbstractCegarLoop]: Abstraction has 120 states and 141 transitions. [2018-12-02 14:39:17,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 14:39:17,268 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 141 transitions. [2018-12-02 14:39:17,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 14:39:17,269 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:39:17,269 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] [2018-12-02 14:39:17,269 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:39:17,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:39:17,270 INFO L82 PathProgramCache]: Analyzing trace with hash -272968865, now seen corresponding path program 1 times [2018-12-02 14:39:17,270 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:39:17,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:17,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:39:17,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:17,270 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:39:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:39:17,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:39:17,348 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:39:17,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 14:39:17,348 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:39:17,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 14:39:17,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 14:39:17,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 14:39:17,349 INFO L87 Difference]: Start difference. First operand 120 states and 141 transitions. Second operand 7 states. [2018-12-02 14:39:17,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:39:17,604 INFO L93 Difference]: Finished difference Result 362 states and 441 transitions. [2018-12-02 14:39:17,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 14:39:17,605 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 14:39:17,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:39:17,607 INFO L225 Difference]: With dead ends: 362 [2018-12-02 14:39:17,607 INFO L226 Difference]: Without dead ends: 266 [2018-12-02 14:39:17,607 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 [2018-12-02 14:39:17,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-12-02 14:39:17,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 258. [2018-12-02 14:39:17,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 258 states. [2018-12-02 14:39:17,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 314 transitions. [2018-12-02 14:39:17,626 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 314 transitions. Word has length 51 [2018-12-02 14:39:17,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:39:17,626 INFO L480 AbstractCegarLoop]: Abstraction has 258 states and 314 transitions. [2018-12-02 14:39:17,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 14:39:17,626 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 314 transitions. [2018-12-02 14:39:17,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-02 14:39:17,627 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:39:17,627 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 14:39:17,627 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:39:17,628 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:39:17,628 INFO L82 PathProgramCache]: Analyzing trace with hash 638960771, now seen corresponding path program 1 times [2018-12-02 14:39:17,628 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:39:17,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:17,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:39:17,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:17,629 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:39:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:39:17,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:39:17,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:39:17,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:39:17,691 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:39:17,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:39:17,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:39:17,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:39:17,692 INFO L87 Difference]: Start difference. First operand 258 states and 314 transitions. Second operand 6 states. [2018-12-02 14:39:17,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:39:17,807 INFO L93 Difference]: Finished difference Result 711 states and 890 transitions. [2018-12-02 14:39:17,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:39:17,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-02 14:39:17,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:39:17,810 INFO L225 Difference]: With dead ends: 711 [2018-12-02 14:39:17,810 INFO L226 Difference]: Without dead ends: 477 [2018-12-02 14:39:17,811 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 [2018-12-02 14:39:17,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2018-12-02 14:39:17,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 471. [2018-12-02 14:39:17,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2018-12-02 14:39:17,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 578 transitions. [2018-12-02 14:39:17,847 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 578 transitions. Word has length 57 [2018-12-02 14:39:17,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:39:17,848 INFO L480 AbstractCegarLoop]: Abstraction has 471 states and 578 transitions. [2018-12-02 14:39:17,848 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:39:17,848 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 578 transitions. [2018-12-02 14:39:17,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-02 14:39:17,851 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:39:17,851 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] [2018-12-02 14:39:17,851 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:39:17,852 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:39:17,852 INFO L82 PathProgramCache]: Analyzing trace with hash -1438851705, now seen corresponding path program 1 times [2018-12-02 14:39:17,852 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:39:17,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:17,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:39:17,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:17,853 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:39:17,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:39:17,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:39:17,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:39:17,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 14:39:17,921 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:39:17,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 14:39:17,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 14:39:17,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 14:39:17,921 INFO L87 Difference]: Start difference. First operand 471 states and 578 transitions. Second operand 7 states. [2018-12-02 14:39:18,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:39:18,288 INFO L93 Difference]: Finished difference Result 1236 states and 1631 transitions. [2018-12-02 14:39:18,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 14:39:18,288 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-12-02 14:39:18,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:39:18,291 INFO L225 Difference]: With dead ends: 1236 [2018-12-02 14:39:18,291 INFO L226 Difference]: Without dead ends: 789 [2018-12-02 14:39:18,292 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 [2018-12-02 14:39:18,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2018-12-02 14:39:18,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 693. [2018-12-02 14:39:18,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2018-12-02 14:39:18,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 847 transitions. [2018-12-02 14:39:18,321 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 847 transitions. Word has length 61 [2018-12-02 14:39:18,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:39:18,321 INFO L480 AbstractCegarLoop]: Abstraction has 693 states and 847 transitions. [2018-12-02 14:39:18,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 14:39:18,321 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 847 transitions. [2018-12-02 14:39:18,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 14:39:18,323 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:39:18,323 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] [2018-12-02 14:39:18,323 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:39:18,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:39:18,324 INFO L82 PathProgramCache]: Analyzing trace with hash 737168965, now seen corresponding path program 1 times [2018-12-02 14:39:18,324 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:39:18,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:18,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:39:18,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:18,325 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:39:18,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:39:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:39:18,373 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:39:18,373 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 14:39:18,373 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:39:18,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 14:39:18,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 14:39:18,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 14:39:18,374 INFO L87 Difference]: Start difference. First operand 693 states and 847 transitions. Second operand 6 states. [2018-12-02 14:39:18,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:39:18,413 INFO L93 Difference]: Finished difference Result 1382 states and 1720 transitions. [2018-12-02 14:39:18,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 14:39:18,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-12-02 14:39:18,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:39:18,415 INFO L225 Difference]: With dead ends: 1382 [2018-12-02 14:39:18,416 INFO L226 Difference]: Without dead ends: 713 [2018-12-02 14:39:18,417 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 [2018-12-02 14:39:18,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2018-12-02 14:39:18,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 713. [2018-12-02 14:39:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 713 states. [2018-12-02 14:39:18,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 867 transitions. [2018-12-02 14:39:18,439 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 867 transitions. Word has length 83 [2018-12-02 14:39:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:39:18,439 INFO L480 AbstractCegarLoop]: Abstraction has 713 states and 867 transitions. [2018-12-02 14:39:18,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 14:39:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 867 transitions. [2018-12-02 14:39:18,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 14:39:18,440 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:39:18,440 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] [2018-12-02 14:39:18,441 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:39:18,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:39:18,441 INFO L82 PathProgramCache]: Analyzing trace with hash 759801219, now seen corresponding path program 1 times [2018-12-02 14:39:18,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:39:18,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:18,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:39:18,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:18,442 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:39:18,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:39:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:39:18,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:39:18,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 14:39:18,495 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:39:18,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 14:39:18,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 14:39:18,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 14:39:18,496 INFO L87 Difference]: Start difference. First operand 713 states and 867 transitions. Second operand 8 states. [2018-12-02 14:39:18,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:39:18,534 INFO L93 Difference]: Finished difference Result 1430 states and 1798 transitions. [2018-12-02 14:39:18,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 14:39:18,534 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 83 [2018-12-02 14:39:18,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:39:18,536 INFO L225 Difference]: With dead ends: 1430 [2018-12-02 14:39:18,536 INFO L226 Difference]: Without dead ends: 741 [2018-12-02 14:39:18,538 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 [2018-12-02 14:39:18,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-12-02 14:39:18,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 729. [2018-12-02 14:39:18,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 729 states. [2018-12-02 14:39:18,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 883 transitions. [2018-12-02 14:39:18,560 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 883 transitions. Word has length 83 [2018-12-02 14:39:18,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:39:18,560 INFO L480 AbstractCegarLoop]: Abstraction has 729 states and 883 transitions. [2018-12-02 14:39:18,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 14:39:18,560 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 883 transitions. [2018-12-02 14:39:18,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-12-02 14:39:18,561 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:39:18,561 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] [2018-12-02 14:39:18,561 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:39:18,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:39:18,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1785293218, now seen corresponding path program 1 times [2018-12-02 14:39:18,561 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:39:18,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:18,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:39:18,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:18,562 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:39:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 14:39:18,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 14:39:18,602 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 14:39:18,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 14:39:18,602 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 14:39:18,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 14:39:18,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 14:39:18,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 14:39:18,603 INFO L87 Difference]: Start difference. First operand 729 states and 883 transitions. Second operand 4 states. [2018-12-02 14:39:18,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 14:39:18,746 INFO L93 Difference]: Finished difference Result 2375 states and 3022 transitions. [2018-12-02 14:39:18,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 14:39:18,746 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2018-12-02 14:39:18,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 14:39:18,753 INFO L225 Difference]: With dead ends: 2375 [2018-12-02 14:39:18,753 INFO L226 Difference]: Without dead ends: 1670 [2018-12-02 14:39:18,755 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 [2018-12-02 14:39:18,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2018-12-02 14:39:18,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1639. [2018-12-02 14:39:18,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1639 states. [2018-12-02 14:39:18,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1639 states to 1639 states and 2035 transitions. [2018-12-02 14:39:18,835 INFO L78 Accepts]: Start accepts. Automaton has 1639 states and 2035 transitions. Word has length 83 [2018-12-02 14:39:18,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 14:39:18,835 INFO L480 AbstractCegarLoop]: Abstraction has 1639 states and 2035 transitions. [2018-12-02 14:39:18,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 14:39:18,835 INFO L276 IsEmpty]: Start isEmpty. Operand 1639 states and 2035 transitions. [2018-12-02 14:39:18,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-12-02 14:39:18,836 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 14:39:18,836 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] [2018-12-02 14:39:18,837 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 14:39:18,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 14:39:18,837 INFO L82 PathProgramCache]: Analyzing trace with hash -390590904, now seen corresponding path program 1 times [2018-12-02 14:39:18,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 14:39:18,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:18,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 14:39:18,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 14:39:18,838 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 14:39:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:39:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 14:39:18,913 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 14:39:18,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:39:18 BoogieIcfgContainer [2018-12-02 14:39:18,998 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 14:39:18,998 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 14:39:18,998 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 14:39:18,998 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 14:39:18,999 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:39:16" (3/4) ... [2018-12-02 14:39:19,000 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 14:39:19,085 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_19fc74cd-d8db-46c8-9934-6a24492f579b/bin-2019/utaipan/witness.graphml [2018-12-02 14:39:19,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 14:39:19,086 INFO L168 Benchmark]: Toolchain (without parser) took 2900.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.5 MB). Free memory was 956.0 MB in the beginning and 865.9 MB in the end (delta: 90.1 MB). Peak memory consumption was 305.6 MB. Max. memory is 11.5 GB. [2018-12-02 14:39:19,086 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 14:39:19,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2018-12-02 14:39:19,087 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.51 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-12-02 14:39:19,087 INFO L168 Benchmark]: Boogie Preprocessor took 31.49 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. [2018-12-02 14:39:19,087 INFO L168 Benchmark]: RCFGBuilder took 406.01 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. [2018-12-02 14:39:19,087 INFO L168 Benchmark]: TraceAbstraction took 2080.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.5 MB). Free memory was 1.1 GB in the beginning and 897.5 MB in the end (delta: 155.9 MB). Peak memory consumption was 242.4 MB. Max. memory is 11.5 GB. [2018-12-02 14:39:19,087 INFO L168 Benchmark]: Witness Printer took 87.14 ms. Allocated memory is still 1.2 GB. Free memory was 897.5 MB in the beginning and 865.9 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-12-02 14:39:19,088 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.51 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.49 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 406.01 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 2080.71 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 86.5 MB). Free memory was 1.1 GB in the beginning and 897.5 MB in the end (delta: 155.9 MB). Peak memory consumption was 242.4 MB. Max. memory is 11.5 GB. * Witness Printer took 87.14 ms. Allocated memory is still 1.2 GB. Free memory was 897.5 MB in the beginning and 865.9 MB in the end (delta: 31.6 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L617] int pumpRunning = 0; [L618] int systemActive = 1; [L848] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=193, \old(head)=200, \old(head)=179, \old(methaneLevelCritical)=151, \old(pumpRunning)=140, \old(systemActive)=139, \old(waterLevel)=142, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L921] int retValue_acc ; [L922] 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] [L926] 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] [L927] 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] [L928] 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] [L839] int retValue_acc ; [L842] retValue_acc = 1 [L843] 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] [L928] 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] [L928] tmp = valid_product() [L930] 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] [L932] 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] [L933] 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] [L915] 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] [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] 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] [L557] 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] [L559] 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] [L565] tmp = __VERIFIER_nondet_int() [L567] 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] [L569] 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] [L468] COND TRUE waterLevel < 2 [L469] 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] [L569] 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] [L575] tmp___0 = __VERIFIER_nondet_int() [L577] 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] [L579] 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] [L480] COND FALSE !(\read(methaneLevelCritical)) [L483] 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] [L579] 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] [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) 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___2=1, waterLevel=2] [L602] 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] [L624] 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] [L631] 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] [L633] 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] [L679] 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] [L682] 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] [L697] CALL processEnvironment__wrappee__highWaterSensor() 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] [L653] 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] [L656] 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] [L658] 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] [L776] int retValue_acc ; [L777] int tmp ; [L778] 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] [L782] 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] [L530] 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] [L533] COND FALSE !(waterLevel < 2) [L537] retValue_acc = 0 [L538] 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] [L782] 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] [L782] tmp = isHighWaterSensorDry() [L784] COND FALSE !(\read(tmp)) [L787] 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] [L789] retValue_acc = tmp___0 [L790] 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] [L658] 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] [L658] tmp = isHighWaterLevel() [L660] 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] [L662] 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] [L707] 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] [L662] 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] [L697] RET processEnvironment__wrappee__highWaterSensor() 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] [L633] 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] [L639] 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] [L410] int tmp ; [L411] 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] [L415] 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] [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] 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] [L415] 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] [L415] tmp = isMethaneLevelCritical() [L417] 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] [L419] 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] [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] 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] [L419] 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] [L419] tmp___0 = isPumpRunning() [L421] 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] [L423] 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] [L439] __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 27 procedures, 142 locations, 1 error locations. UNSAFE Result, 2.0s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1289 SDtfs, 767 SDslu, 3027 SDs, 0 SdLazy, 852 SolverSat, 160 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=1639occurred 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, 153 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 598 NumberOfCodeBlocks, 598 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 503 ConstructedInterpolants, 0 QuantifiedInterpolants, 55539 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...