./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_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_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product39_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/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 c228d9f74ddd17cda7010ca670107d7221f92470 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 05:11:31,324 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 05:11:31,326 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 05:11:31,334 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 05:11:31,334 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 05:11:31,334 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 05:11:31,335 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 05:11:31,336 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 05:11:31,338 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 05:11:31,338 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 05:11:31,339 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 05:11:31,339 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 05:11:31,340 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 05:11:31,340 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 05:11:31,341 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 05:11:31,342 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 05:11:31,342 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 05:11:31,344 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 05:11:31,345 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 05:11:31,346 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 05:11:31,347 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 05:11:31,348 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 05:11:31,349 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 05:11:31,349 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 05:11:31,350 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 05:11:31,350 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 05:11:31,351 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 05:11:31,352 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 05:11:31,352 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 05:11:31,353 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 05:11:31,353 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 05:11:31,354 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 05:11:31,354 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 05:11:31,354 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 05:11:31,354 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 05:11:31,355 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 05:11:31,355 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 05:11:31,365 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 05:11:31,365 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 05:11:31,366 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 05:11:31,366 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 05:11:31,366 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 05:11:31,366 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 05:11:31,366 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 05:11:31,366 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 05:11:31,367 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 05:11:31,367 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 05:11:31,367 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 05:11:31,367 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 05:11:31,367 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 05:11:31,367 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 05:11:31,367 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 05:11:31,368 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 05:11:31,368 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 05:11:31,368 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 05:11:31,368 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 05:11:31,368 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 05:11:31,368 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 05:11:31,368 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 05:11:31,369 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 05:11:31,369 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 05:11:31,369 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 05:11:31,369 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 05:11:31,369 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 05:11:31,369 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 05:11:31,369 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 05:11:31,369 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 05:11:31,369 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 05:11:31,369 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 05:11:31,369 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 05:11:31,369 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 05:11:31,370 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 05:11:31,370 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 05:11:31,370 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_6893c88d-f429-4090-b9c2-8fde33f2dc6d/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 -> c228d9f74ddd17cda7010ca670107d7221f92470 [2018-12-02 05:11:31,387 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 05:11:31,394 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 05:11:31,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 05:11:31,397 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 05:11:31,397 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 05:11:31,397 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product39_false-unreach-call_false-termination.cil.c [2018-12-02 05:11:31,431 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/data/5b625e8a2/04d3e39ed677438d931ac68abed6e93c/FLAG9609a3560 [2018-12-02 05:11:31,873 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 05:11:31,873 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/sv-benchmarks/c/product-lines/minepump_spec4_product39_false-unreach-call_false-termination.cil.c [2018-12-02 05:11:31,880 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/data/5b625e8a2/04d3e39ed677438d931ac68abed6e93c/FLAG9609a3560 [2018-12-02 05:11:31,888 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/data/5b625e8a2/04d3e39ed677438d931ac68abed6e93c [2018-12-02 05:11:31,890 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 05:11:31,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 05:11:31,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 05:11:31,891 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 05:11:31,893 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 05:11:31,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:11:31" (1/1) ... [2018-12-02 05:11:31,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:31, skipping insertion in model container [2018-12-02 05:11:31,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:11:31" (1/1) ... [2018-12-02 05:11:31,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 05:11:31,919 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 05:11:32,062 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 05:11:32,102 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 05:11:32,141 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 05:11:32,156 INFO L195 MainTranslator]: Completed translation [2018-12-02 05:11:32,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32 WrapperNode [2018-12-02 05:11:32,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 05:11:32,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 05:11:32,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 05:11:32,157 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 05:11:32,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (1/1) ... [2018-12-02 05:11:32,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (1/1) ... [2018-12-02 05:11:32,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 05:11:32,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 05:11:32,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 05:11:32,176 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 05:11:32,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (1/1) ... [2018-12-02 05:11:32,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (1/1) ... [2018-12-02 05:11:32,184 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (1/1) ... [2018-12-02 05:11:32,184 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (1/1) ... [2018-12-02 05:11:32,191 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (1/1) ... [2018-12-02 05:11:32,195 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (1/1) ... [2018-12-02 05:11:32,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (1/1) ... [2018-12-02 05:11:32,198 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 05:11:32,198 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 05:11:32,198 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 05:11:32,198 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 05:11:32,199 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/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 05:11:32,230 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 05:11:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 05:11:32,230 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-02 05:11:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-02 05:11:32,230 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 05:11:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 05:11:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-02 05:11:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-02 05:11:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 05:11:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 05:11:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 05:11:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 05:11:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 05:11:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 05:11:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 05:11:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 05:11:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 05:11:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 05:11:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 05:11:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 05:11:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 05:11:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 05:11:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 05:11:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 05:11:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 05:11:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 05:11:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 05:11:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 05:11:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 05:11:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 05:11:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 05:11:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 05:11:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 05:11:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 05:11:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 05:11:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 05:11:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 05:11:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 05:11:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 05:11:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 05:11:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 05:11:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 05:11:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 05:11:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 05:11:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 05:11:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 05:11:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 05:11:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 05:11:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 05:11:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 05:11:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 05:11:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 05:11:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 05:11:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 05:11:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 05:11:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 05:11:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 05:11:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 05:11:32,537 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 05:11:32,537 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 05:11:32,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:11:32 BoogieIcfgContainer [2018-12-02 05:11:32,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 05:11:32,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 05:11:32,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 05:11:32,541 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 05:11:32,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:11:31" (1/3) ... [2018-12-02 05:11:32,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:11:32, skipping insertion in model container [2018-12-02 05:11:32,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:11:32" (2/3) ... [2018-12-02 05:11:32,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f6268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:11:32, skipping insertion in model container [2018-12-02 05:11:32,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:11:32" (3/3) ... [2018-12-02 05:11:32,544 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39_false-unreach-call_false-termination.cil.c [2018-12-02 05:11:32,552 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 05:11:32,558 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 05:11:32,572 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 05:11:32,593 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 05:11:32,593 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 05:11:32,593 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 05:11:32,593 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 05:11:32,593 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 05:11:32,593 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 05:11:32,593 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 05:11:32,594 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 05:11:32,611 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states. [2018-12-02 05:11:32,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-02 05:11:32,618 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:32,619 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 05:11:32,620 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:32,623 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:32,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1562660957, now seen corresponding path program 1 times [2018-12-02 05:11:32,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:32,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:32,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:32,652 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:32,652 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:32,784 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 05:11:32,786 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 05:11:32,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 05:11:32,786 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:32,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 05:11:32,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 05:11:32,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 05:11:32,798 INFO L87 Difference]: Start difference. First operand 145 states. Second operand 2 states. [2018-12-02 05:11:32,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:32,821 INFO L93 Difference]: Finished difference Result 264 states and 327 transitions. [2018-12-02 05:11:32,821 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 05:11:32,822 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-02 05:11:32,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:32,829 INFO L225 Difference]: With dead ends: 264 [2018-12-02 05:11:32,829 INFO L226 Difference]: Without dead ends: 132 [2018-12-02 05:11:32,831 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 05:11:32,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-12-02 05:11:32,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2018-12-02 05:11:32,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-12-02 05:11:32,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2018-12-02 05:11:32,863 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 46 [2018-12-02 05:11:32,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:32,864 INFO L480 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2018-12-02 05:11:32,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 05:11:32,864 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2018-12-02 05:11:32,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-02 05:11:32,866 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:32,866 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 05:11:32,866 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:32,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:32,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1625318604, now seen corresponding path program 1 times [2018-12-02 05:11:32,867 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:32,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:32,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:32,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:32,867 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:32,919 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 05:11:32,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 05:11:32,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 05:11:32,920 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:32,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 05:11:32,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 05:11:32,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 05:11:32,921 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand 3 states. [2018-12-02 05:11:32,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:32,934 INFO L93 Difference]: Finished difference Result 207 states and 241 transitions. [2018-12-02 05:11:32,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 05:11:32,934 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-02 05:11:32,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:32,935 INFO L225 Difference]: With dead ends: 207 [2018-12-02 05:11:32,936 INFO L226 Difference]: Without dead ends: 123 [2018-12-02 05:11:32,936 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 05:11:32,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2018-12-02 05:11:32,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2018-12-02 05:11:32,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2018-12-02 05:11:32,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2018-12-02 05:11:32,944 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 47 [2018-12-02 05:11:32,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:32,944 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2018-12-02 05:11:32,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 05:11:32,944 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2018-12-02 05:11:32,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-02 05:11:32,945 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:32,945 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 05:11:32,945 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:32,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:32,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1164797503, now seen corresponding path program 1 times [2018-12-02 05:11:32,946 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:32,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:32,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:32,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:32,947 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:32,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:33,014 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 05:11:33,014 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 05:11:33,014 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 05:11:33,014 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:33,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 05:11:33,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 05:11:33,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 05:11:33,015 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 7 states. [2018-12-02 05:11:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:33,281 INFO L93 Difference]: Finished difference Result 371 states and 447 transitions. [2018-12-02 05:11:33,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 05:11:33,282 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-02 05:11:33,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:33,284 INFO L225 Difference]: With dead ends: 371 [2018-12-02 05:11:33,284 INFO L226 Difference]: Without dead ends: 272 [2018-12-02 05:11:33,285 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 05:11:33,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2018-12-02 05:11:33,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 264. [2018-12-02 05:11:33,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2018-12-02 05:11:33,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 318 transitions. [2018-12-02 05:11:33,304 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 318 transitions. Word has length 51 [2018-12-02 05:11:33,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:33,305 INFO L480 AbstractCegarLoop]: Abstraction has 264 states and 318 transitions. [2018-12-02 05:11:33,305 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 05:11:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 318 transitions. [2018-12-02 05:11:33,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-02 05:11:33,306 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:33,306 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 05:11:33,306 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:33,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:33,306 INFO L82 PathProgramCache]: Analyzing trace with hash 384172571, now seen corresponding path program 1 times [2018-12-02 05:11:33,306 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:33,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:33,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:33,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:33,307 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:33,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:33,390 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 05:11:33,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 05:11:33,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 05:11:33,390 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:33,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 05:11:33,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 05:11:33,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-02 05:11:33,391 INFO L87 Difference]: Start difference. First operand 264 states and 318 transitions. Second operand 10 states. [2018-12-02 05:11:33,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:33,705 INFO L93 Difference]: Finished difference Result 936 states and 1220 transitions. [2018-12-02 05:11:33,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-02 05:11:33,706 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2018-12-02 05:11:33,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:33,711 INFO L225 Difference]: With dead ends: 936 [2018-12-02 05:11:33,711 INFO L226 Difference]: Without dead ends: 696 [2018-12-02 05:11:33,713 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-02 05:11:33,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2018-12-02 05:11:33,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 684. [2018-12-02 05:11:33,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 684 states. [2018-12-02 05:11:33,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 858 transitions. [2018-12-02 05:11:33,763 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 858 transitions. Word has length 57 [2018-12-02 05:11:33,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:33,764 INFO L480 AbstractCegarLoop]: Abstraction has 684 states and 858 transitions. [2018-12-02 05:11:33,764 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 05:11:33,764 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 858 transitions. [2018-12-02 05:11:33,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-02 05:11:33,768 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:33,768 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] [2018-12-02 05:11:33,768 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:33,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:33,768 INFO L82 PathProgramCache]: Analyzing trace with hash 964699425, now seen corresponding path program 1 times [2018-12-02 05:11:33,768 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:33,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:33,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:33,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:33,770 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:33,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:33,829 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 05:11:33,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 05:11:33,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 05:11:33,830 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:33,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 05:11:33,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 05:11:33,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 05:11:33,831 INFO L87 Difference]: Start difference. First operand 684 states and 858 transitions. Second operand 4 states. [2018-12-02 05:11:34,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:34,055 INFO L93 Difference]: Finished difference Result 1726 states and 2373 transitions. [2018-12-02 05:11:34,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 05:11:34,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-12-02 05:11:34,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:34,058 INFO L225 Difference]: With dead ends: 1726 [2018-12-02 05:11:34,058 INFO L226 Difference]: Without dead ends: 1066 [2018-12-02 05:11:34,060 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-02 05:11:34,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2018-12-02 05:11:34,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 931. [2018-12-02 05:11:34,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 931 states. [2018-12-02 05:11:34,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 931 states to 931 states and 1178 transitions. [2018-12-02 05:11:34,105 INFO L78 Accepts]: Start accepts. Automaton has 931 states and 1178 transitions. Word has length 61 [2018-12-02 05:11:34,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:34,106 INFO L480 AbstractCegarLoop]: Abstraction has 931 states and 1178 transitions. [2018-12-02 05:11:34,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 05:11:34,106 INFO L276 IsEmpty]: Start isEmpty. Operand 931 states and 1178 transitions. [2018-12-02 05:11:34,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-12-02 05:11:34,108 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:34,108 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:34,108 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:34,108 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:34,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1788697759, now seen corresponding path program 1 times [2018-12-02 05:11:34,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:34,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:34,110 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:34,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:34,110 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:34,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-12-02 05:11:34,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 05:11:34,189 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 05:11:34,190 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 89 with the following transitions: [2018-12-02 05:11:34,191 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [42], [44], [45], [46], [47], [48], [83], [92], [96], [100], [103], [108], [114], [116], [119], [121], [124], [135], [136], [139], [140], [192], [199], [202], [210], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [261], [273], [274], [277], [278], [279], [280], [293], [294], [295], [296], [297] [2018-12-02 05:11:34,214 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 05:11:34,214 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 05:11:34,592 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 05:11:34,593 INFO L272 AbstractInterpreter]: Visited 65 different actions 133 times. Merged at 13 different actions 19 times. Never widened. Performed 4845 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4845 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 133 variables. [2018-12-02 05:11:34,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:34,599 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 05:11:34,795 INFO L227 lantSequenceWeakener]: Weakened 84 states. On average, predicates are now at 98.37% of their original sizes. [2018-12-02 05:11:34,795 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 05:11:34,847 INFO L418 sIntCurrentIteration]: We unified 87 AI predicates to 87 [2018-12-02 05:11:34,847 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 05:11:34,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 05:11:34,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [7] total 16 [2018-12-02 05:11:34,848 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:34,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-02 05:11:34,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-02 05:11:34,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-12-02 05:11:34,849 INFO L87 Difference]: Start difference. First operand 931 states and 1178 transitions. Second operand 11 states. [2018-12-02 05:11:36,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:36,186 INFO L93 Difference]: Finished difference Result 1289 states and 1659 transitions. [2018-12-02 05:11:36,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-12-02 05:11:36,186 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 88 [2018-12-02 05:11:36,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:36,188 INFO L225 Difference]: With dead ends: 1289 [2018-12-02 05:11:36,188 INFO L226 Difference]: Without dead ends: 557 [2018-12-02 05:11:36,189 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 97 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2018-12-02 05:11:36,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-12-02 05:11:36,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 523. [2018-12-02 05:11:36,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2018-12-02 05:11:36,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 643 transitions. [2018-12-02 05:11:36,207 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 643 transitions. Word has length 88 [2018-12-02 05:11:36,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:36,208 INFO L480 AbstractCegarLoop]: Abstraction has 523 states and 643 transitions. [2018-12-02 05:11:36,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-02 05:11:36,208 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 643 transitions. [2018-12-02 05:11:36,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-12-02 05:11:36,210 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:36,210 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:36,210 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:36,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:36,210 INFO L82 PathProgramCache]: Analyzing trace with hash 2143637337, now seen corresponding path program 1 times [2018-12-02 05:11:36,211 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:36,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:36,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:36,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:36,211 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:36,274 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-12-02 05:11:36,274 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 05:11:36,274 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 05:11:36,274 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-12-02 05:11:36,275 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [57], [60], [62], [63], [78], [81], [83], [92], [96], [100], [103], [106], [108], [114], [116], [119], [135], [136], [137], [138], [139], [140], [141], [143], [146], [150], [151], [189], [192], [196], [202], [205], [209], [210], [214], [217], [219], [222], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [261], [271], [272], [273], [274], [279], [280], [283], [284], [289], [290], [291], [292], [293], [294], [295], [296], [297], [299], [300], [301], [302] [2018-12-02 05:11:36,277 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 05:11:36,277 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 05:11:36,472 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 05:11:36,472 INFO L272 AbstractInterpreter]: Visited 61 different actions 89 times. Merged at 5 different actions 5 times. Never widened. Performed 4655 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4655 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 05:11:36,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:36,474 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 05:11:36,625 INFO L227 lantSequenceWeakener]: Weakened 88 states. On average, predicates are now at 97.64% of their original sizes. [2018-12-02 05:11:36,625 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 05:11:36,736 INFO L418 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2018-12-02 05:11:36,736 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 05:11:36,736 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 05:11:36,736 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-12-02 05:11:36,736 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:36,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-12-02 05:11:36,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-12-02 05:11:36,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=284, Unknown=0, NotChecked=0, Total=380 [2018-12-02 05:11:36,737 INFO L87 Difference]: Start difference. First operand 523 states and 643 transitions. Second operand 20 states. [2018-12-02 05:11:38,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:38,246 INFO L93 Difference]: Finished difference Result 1387 states and 1857 transitions. [2018-12-02 05:11:38,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-02 05:11:38,246 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 138 [2018-12-02 05:11:38,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:38,250 INFO L225 Difference]: With dead ends: 1387 [2018-12-02 05:11:38,250 INFO L226 Difference]: Without dead ends: 945 [2018-12-02 05:11:38,252 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 142 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2018-12-02 05:11:38,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 945 states. [2018-12-02 05:11:38,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 945 to 872. [2018-12-02 05:11:38,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 872 states. [2018-12-02 05:11:38,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 1098 transitions. [2018-12-02 05:11:38,296 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 1098 transitions. Word has length 138 [2018-12-02 05:11:38,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:38,296 INFO L480 AbstractCegarLoop]: Abstraction has 872 states and 1098 transitions. [2018-12-02 05:11:38,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-12-02 05:11:38,296 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 1098 transitions. [2018-12-02 05:11:38,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-12-02 05:11:38,298 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:38,298 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:38,298 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:38,298 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:38,298 INFO L82 PathProgramCache]: Analyzing trace with hash 1789318210, now seen corresponding path program 1 times [2018-12-02 05:11:38,298 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:38,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:38,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:38,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:38,299 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 05:11:38,380 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 05:11:38,380 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 05:11:38,380 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-12-02 05:11:38,381 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [60], [62], [63], [66], [68], [74], [78], [81], [82], [83], [92], [96], [100], [106], [108], [114], [116], [119], [135], [136], [137], [138], [139], [140], [141], [143], [148], [150], [151], [159], [160], [189], [192], [196], [202], [205], [209], [210], [214], [217], [219], [222], [229], [232], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [261], [263], [264], [265], [266], [269], [270], [271], [272], [279], [280], [283], [284], [289], [290], [291], [292], [293], [294], [295], [296], [297], [299], [300], [301], [302], [305], [306] [2018-12-02 05:11:38,384 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 05:11:38,384 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 05:11:38,829 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 05:11:38,829 INFO L272 AbstractInterpreter]: Visited 107 different actions 366 times. Merged at 16 different actions 35 times. Never widened. Performed 11080 root evaluator evaluations with a maximum evaluation depth of 3. Performed 11080 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 5 fixpoints after 2 different actions. Largest state had 132 variables. [2018-12-02 05:11:38,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:38,832 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 05:11:38,832 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 05:11:38,832 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 05:11:38,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:38,839 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 05:11:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:38,910 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 05:11:38,960 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-12-02 05:11:38,960 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 05:11:39,113 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 05:11:39,129 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-12-02 05:11:39,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [8, 5] total 11 [2018-12-02 05:11:39,129 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:39,129 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 05:11:39,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 05:11:39,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-02 05:11:39,130 INFO L87 Difference]: Start difference. First operand 872 states and 1098 transitions. Second operand 5 states. [2018-12-02 05:11:39,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:39,172 INFO L93 Difference]: Finished difference Result 1537 states and 2001 transitions. [2018-12-02 05:11:39,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-02 05:11:39,173 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-12-02 05:11:39,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:39,176 INFO L225 Difference]: With dead ends: 1537 [2018-12-02 05:11:39,176 INFO L226 Difference]: Without dead ends: 689 [2018-12-02 05:11:39,178 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 257 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2018-12-02 05:11:39,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 689 states. [2018-12-02 05:11:39,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 689 to 689. [2018-12-02 05:11:39,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 689 states. [2018-12-02 05:11:39,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 847 transitions. [2018-12-02 05:11:39,201 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 847 transitions. Word has length 130 [2018-12-02 05:11:39,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:39,202 INFO L480 AbstractCegarLoop]: Abstraction has 689 states and 847 transitions. [2018-12-02 05:11:39,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 05:11:39,202 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 847 transitions. [2018-12-02 05:11:39,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-12-02 05:11:39,203 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:39,203 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:39,204 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:39,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:39,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1830509755, now seen corresponding path program 1 times [2018-12-02 05:11:39,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:39,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:39,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:39,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:39,205 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:39,240 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-12-02 05:11:39,241 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 05:11:39,241 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 05:11:39,241 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-12-02 05:11:39,241 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [61], [62], [63], [66], [68], [74], [78], [81], [82], [83], [92], [96], [100], [103], [106], [108], [114], [116], [119], [135], [136], [137], [138], [139], [140], [141], [143], [146], [150], [151], [159], [160], [189], [192], [196], [202], [205], [209], [210], [214], [217], [219], [222], [229], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [261], [263], [264], [265], [266], [269], [270], [271], [272], [273], [274], [279], [280], [283], [284], [289], [290], [291], [292], [293], [294], [295], [296], [297], [299], [300], [301], [302], [305], [306] [2018-12-02 05:11:39,243 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 05:11:39,243 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 05:11:39,375 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 05:11:39,375 INFO L272 AbstractInterpreter]: Visited 58 different actions 79 times. Merged at 5 different actions 5 times. Never widened. Performed 4615 root evaluator evaluations with a maximum evaluation depth of 3. Performed 4615 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 05:11:39,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:39,376 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 05:11:39,534 INFO L227 lantSequenceWeakener]: Weakened 66 states. On average, predicates are now at 96.43% of their original sizes. [2018-12-02 05:11:39,534 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 05:11:39,586 INFO L418 sIntCurrentIteration]: We unified 133 AI predicates to 133 [2018-12-02 05:11:39,586 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 05:11:39,586 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 05:11:39,586 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-12-02 05:11:39,586 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:39,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-02 05:11:39,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-02 05:11:39,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-02 05:11:39,587 INFO L87 Difference]: Start difference. First operand 689 states and 847 transitions. Second operand 12 states. [2018-12-02 05:11:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:40,900 INFO L93 Difference]: Finished difference Result 1668 states and 2098 transitions. [2018-12-02 05:11:40,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-02 05:11:40,901 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 134 [2018-12-02 05:11:40,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:40,904 INFO L225 Difference]: With dead ends: 1668 [2018-12-02 05:11:40,904 INFO L226 Difference]: Without dead ends: 1003 [2018-12-02 05:11:40,905 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 137 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-12-02 05:11:40,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2018-12-02 05:11:40,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 989. [2018-12-02 05:11:40,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 989 states. [2018-12-02 05:11:40,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1216 transitions. [2018-12-02 05:11:40,946 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1216 transitions. Word has length 134 [2018-12-02 05:11:40,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:40,947 INFO L480 AbstractCegarLoop]: Abstraction has 989 states and 1216 transitions. [2018-12-02 05:11:40,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-02 05:11:40,947 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1216 transitions. [2018-12-02 05:11:40,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-12-02 05:11:40,948 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:40,949 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:40,949 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:40,949 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:40,949 INFO L82 PathProgramCache]: Analyzing trace with hash 805589507, now seen corresponding path program 1 times [2018-12-02 05:11:40,949 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:40,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:40,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:40,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:40,950 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 21 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-12-02 05:11:40,999 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 05:11:40,999 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 05:11:40,999 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-12-02 05:11:40,999 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [61], [62], [63], [66], [68], [74], [78], [81], [82], [83], [92], [96], [100], [103], [108], [114], [116], [119], [135], [136], [137], [138], [139], [140], [141], [143], [148], [150], [151], [159], [160], [189], [192], [196], [202], [205], [209], [210], [214], [217], [219], [222], [229], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [261], [263], [264], [265], [266], [269], [270], [271], [272], [273], [274], [279], [280], [283], [284], [289], [290], [291], [292], [293], [294], [295], [296], [297], [299], [300], [301], [302], [305], [306] [2018-12-02 05:11:41,000 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 05:11:41,000 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 05:11:41,127 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 05:11:41,127 INFO L272 AbstractInterpreter]: Visited 83 different actions 91 times. Merged at 5 different actions 5 times. Never widened. Performed 2987 root evaluator evaluations with a maximum evaluation depth of 3. Performed 2987 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 132 variables. [2018-12-02 05:11:41,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:41,129 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 05:11:41,245 INFO L227 lantSequenceWeakener]: Weakened 105 states. On average, predicates are now at 96.66% of their original sizes. [2018-12-02 05:11:41,245 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 05:11:41,382 INFO L418 sIntCurrentIteration]: We unified 137 AI predicates to 137 [2018-12-02 05:11:41,382 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 05:11:41,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 05:11:41,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [5] total 27 [2018-12-02 05:11:41,383 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:41,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-12-02 05:11:41,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-12-02 05:11:41,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2018-12-02 05:11:41,383 INFO L87 Difference]: Start difference. First operand 989 states and 1216 transitions. Second operand 24 states. [2018-12-02 05:11:43,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:43,382 INFO L93 Difference]: Finished difference Result 1677 states and 2091 transitions. [2018-12-02 05:11:43,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-02 05:11:43,383 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 138 [2018-12-02 05:11:43,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:43,385 INFO L225 Difference]: With dead ends: 1677 [2018-12-02 05:11:43,385 INFO L226 Difference]: Without dead ends: 824 [2018-12-02 05:11:43,386 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 147 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=144, Invalid=978, Unknown=0, NotChecked=0, Total=1122 [2018-12-02 05:11:43,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2018-12-02 05:11:43,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 815. [2018-12-02 05:11:43,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 815 states. [2018-12-02 05:11:43,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 989 transitions. [2018-12-02 05:11:43,410 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 989 transitions. Word has length 138 [2018-12-02 05:11:43,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:43,411 INFO L480 AbstractCegarLoop]: Abstraction has 815 states and 989 transitions. [2018-12-02 05:11:43,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-12-02 05:11:43,411 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 989 transitions. [2018-12-02 05:11:43,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-12-02 05:11:43,412 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:43,412 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:43,412 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:43,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:43,412 INFO L82 PathProgramCache]: Analyzing trace with hash 772671677, now seen corresponding path program 1 times [2018-12-02 05:11:43,412 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:43,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:43,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:43,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:43,413 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:43,492 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 05:11:43,492 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 05:11:43,492 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 05:11:43,492 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-12-02 05:11:43,492 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [61], [62], [63], [66], [68], [74], [78], [81], [82], [83], [92], [96], [100], [103], [106], [108], [114], [116], [119], [135], [136], [137], [138], [139], [140], [141], [143], [148], [150], [151], [159], [160], [189], [192], [196], [202], [205], [209], [210], [214], [217], [219], [222], [229], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [261], [263], [264], [265], [266], [269], [270], [271], [272], [273], [274], [279], [280], [283], [284], [289], [290], [291], [292], [293], [294], [295], [296], [297], [299], [300], [301], [302], [305], [306] [2018-12-02 05:11:43,494 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 05:11:43,494 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 05:11:44,053 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-02 05:11:44,053 INFO L272 AbstractInterpreter]: Visited 112 different actions 510 times. Merged at 18 different actions 51 times. Never widened. Performed 17039 root evaluator evaluations with a maximum evaluation depth of 3. Performed 17039 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 9 fixpoints after 3 different actions. Largest state had 132 variables. [2018-12-02 05:11:44,055 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:44,055 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-02 05:11:44,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 05:11:44,055 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 05:11:44,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:44,061 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-02 05:11:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:44,115 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 05:11:44,184 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 05:11:44,184 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-02 05:11:44,316 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-02 05:11:44,332 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-02 05:11:44,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-02 05:11:44,332 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-02 05:11:44,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-02 05:11:44,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-02 05:11:44,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-02 05:11:44,333 INFO L87 Difference]: Start difference. First operand 815 states and 989 transitions. Second operand 15 states. [2018-12-02 05:11:45,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:45,081 INFO L93 Difference]: Finished difference Result 1464 states and 1991 transitions. [2018-12-02 05:11:45,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-02 05:11:45,082 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 134 [2018-12-02 05:11:45,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:45,084 INFO L225 Difference]: With dead ends: 1464 [2018-12-02 05:11:45,084 INFO L226 Difference]: Without dead ends: 856 [2018-12-02 05:11:45,085 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 260 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-02 05:11:45,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2018-12-02 05:11:45,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 716. [2018-12-02 05:11:45,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2018-12-02 05:11:45,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 864 transitions. [2018-12-02 05:11:45,111 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 864 transitions. Word has length 134 [2018-12-02 05:11:45,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:45,111 INFO L480 AbstractCegarLoop]: Abstraction has 716 states and 864 transitions. [2018-12-02 05:11:45,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-02 05:11:45,111 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 864 transitions. [2018-12-02 05:11:45,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-12-02 05:11:45,113 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:45,113 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:45,113 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:45,113 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:45,113 INFO L82 PathProgramCache]: Analyzing trace with hash 880710163, now seen corresponding path program 1 times [2018-12-02 05:11:45,113 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:45,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:45,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:45,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:45,114 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 05:11:45,148 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 34 proven. 11 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-12-02 05:11:45,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 05:11:45,148 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-02 05:11:45,148 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-12-02 05:11:45,148 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [46], [47], [48], [51], [53], [54], [57], [61], [62], [63], [66], [68], [74], [78], [81], [82], [83], [92], [96], [100], [103], [106], [108], [111], [114], [116], [119], [135], [136], [137], [138], [139], [140], [141], [143], [146], [150], [151], [156], [158], [159], [160], [189], [192], [196], [202], [205], [209], [210], [214], [217], [219], [222], [229], [232], [235], [239], [240], [243], [244], [245], [246], [247], [249], [250], [251], [252], [253], [254], [255], [256], [257], [261], [263], [264], [265], [266], [269], [270], [271], [272], [273], [274], [275], [276], [279], [280], [283], [284], [289], [290], [291], [292], [293], [294], [295], [296], [297], [299], [300], [301], [302], [305], [306] [2018-12-02 05:11:45,149 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-02 05:11:45,149 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-02 05:11:45,428 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-02 05:11:45,428 INFO L272 AbstractInterpreter]: Visited 63 different actions 135 times. Merged at 7 different actions 12 times. Never widened. Performed 10340 root evaluator evaluations with a maximum evaluation depth of 3. Performed 10340 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-02 05:11:45,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:45,430 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-02 05:11:45,583 INFO L227 lantSequenceWeakener]: Weakened 84 states. On average, predicates are now at 96.37% of their original sizes. [2018-12-02 05:11:45,583 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-02 05:11:45,656 INFO L418 sIntCurrentIteration]: We unified 188 AI predicates to 188 [2018-12-02 05:11:45,657 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-02 05:11:45,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 05:11:45,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [5] total 18 [2018-12-02 05:11:45,657 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 05:11:45,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-02 05:11:45,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-02 05:11:45,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2018-12-02 05:11:45,657 INFO L87 Difference]: Start difference. First operand 716 states and 864 transitions. Second operand 15 states. [2018-12-02 05:11:47,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 05:11:47,732 INFO L93 Difference]: Finished difference Result 1499 states and 1855 transitions. [2018-12-02 05:11:47,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-12-02 05:11:47,732 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 189 [2018-12-02 05:11:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 05:11:47,734 INFO L225 Difference]: With dead ends: 1499 [2018-12-02 05:11:47,734 INFO L226 Difference]: Without dead ends: 933 [2018-12-02 05:11:47,735 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 199 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2018-12-02 05:11:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2018-12-02 05:11:47,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 889. [2018-12-02 05:11:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 889 states. [2018-12-02 05:11:47,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 889 states to 889 states and 1050 transitions. [2018-12-02 05:11:47,769 INFO L78 Accepts]: Start accepts. Automaton has 889 states and 1050 transitions. Word has length 189 [2018-12-02 05:11:47,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 05:11:47,769 INFO L480 AbstractCegarLoop]: Abstraction has 889 states and 1050 transitions. [2018-12-02 05:11:47,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-02 05:11:47,769 INFO L276 IsEmpty]: Start isEmpty. Operand 889 states and 1050 transitions. [2018-12-02 05:11:47,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-12-02 05:11:47,771 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 05:11:47,771 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:11:47,772 INFO L423 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 05:11:47,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 05:11:47,772 INFO L82 PathProgramCache]: Analyzing trace with hash -2059900115, now seen corresponding path program 2 times [2018-12-02 05:11:47,772 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 05:11:47,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:47,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 05:11:47,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 05:11:47,772 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 05:11:47,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 05:11:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 05:11:47,901 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 05:11:48,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 05:11:48 BoogieIcfgContainer [2018-12-02 05:11:48,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 05:11:48,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 05:11:48,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 05:11:48,031 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 05:11:48,031 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:11:32" (3/4) ... [2018-12-02 05:11:48,033 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 05:11:48,137 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6893c88d-f429-4090-b9c2-8fde33f2dc6d/bin-2019/utaipan/witness.graphml [2018-12-02 05:11:48,137 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 05:11:48,137 INFO L168 Benchmark]: Toolchain (without parser) took 16247.36 ms. Allocated memory was 1.0 GB in the beginning and 1.9 GB in the end (delta: 902.3 MB). Free memory was 947.0 MB in the beginning and 1.5 GB in the end (delta: -593.0 MB). Peak memory consumption was 309.3 MB. Max. memory is 11.5 GB. [2018-12-02 05:11:48,138 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 05:11:48,138 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -164.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2018-12-02 05:11:48,138 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.53 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 05:11:48,138 INFO L168 Benchmark]: Boogie Preprocessor took 21.88 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 05:11:48,138 INFO L168 Benchmark]: RCFGBuilder took 339.32 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: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 11.5 GB. [2018-12-02 05:11:48,139 INFO L168 Benchmark]: TraceAbstraction took 15492.26 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 774.9 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -548.7 MB). Peak memory consumption was 226.2 MB. Max. memory is 11.5 GB. [2018-12-02 05:11:48,139 INFO L168 Benchmark]: Witness Printer took 106.04 ms. Allocated memory is still 1.9 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. [2018-12-02 05:11:48,140 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.4 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -164.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.53 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 21.88 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 339.32 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: 48.0 MB). Peak memory consumption was 48.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15492.26 ms. Allocated memory was 1.2 GB in the beginning and 1.9 GB in the end (delta: 774.9 MB). Free memory was 1.1 GB in the beginning and 1.6 GB in the end (delta: -548.7 MB). Peak memory consumption was 226.2 MB. Max. memory is 11.5 GB. * Witness Printer took 106.04 ms. Allocated memory is still 1.9 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 64.9 MB). Peak memory consumption was 64.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 722]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int pumpRunning = 0; [L525] int systemActive = 1; [L728] int waterLevel = 1; [L729] int methaneLevelCritical = 0; [L822] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=192, \old(head)=200, \old(head)=181, \old(methaneLevelCritical)=155, \old(pumpRunning)=146, \old(systemActive)=145, \old(waterLevel)=148, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] 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] [L900] 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] [L901] 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] [L902] 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] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] 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] [L902] 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] [L902] tmp = valid_product() [L904] 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] [L906] 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] [L907] 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] [L889] 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] [L450] int splverifierCounter ; [L451] int tmp ; [L452] int tmp___0 ; [L453] int tmp___1 ; [L454] int tmp___2 ; [L457] 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] [L459] 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] [L461] 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] [L467] tmp = __VERIFIER_nondet_int() [L469] 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] [L471] 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] [L746] COND TRUE waterLevel < 2 [L747] 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] [L471] 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] [L477] tmp___0 = __VERIFIER_nondet_int() [L479] COND FALSE !(\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=0, waterLevel=2] [L487] tmp___2 = __VERIFIER_nondet_int() [L489] COND TRUE \read(tmp___2) 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=0, tmp___2=1, waterLevel=2] [L504] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L532] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L539] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L541] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L587] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L590] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L605] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L561] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L564] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L684] int retValue_acc ; [L685] int tmp ; [L686] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L690] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L808] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L811] COND FALSE !(waterLevel < 2) [L815] retValue_acc = 0 [L816] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L690] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L690] tmp = isHighWaterSensorDry() [L692] COND FALSE !(\read(tmp)) [L695] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L697] retValue_acc = tmp___0 [L698] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L566] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isHighWaterLevel() [L568] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L570] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L615] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L570] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L605] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L541] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L547] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L919] int tmp ; [L920] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L924] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L924] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L924] tmp = getWaterLevel() [L926] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L547] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L504] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L459] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L461] 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=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L467] tmp = __VERIFIER_nondet_int() [L469] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L477] tmp___0 = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L487] tmp___2 = __VERIFIER_nondet_int() [L489] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L504] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L532] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L534] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L734] COND TRUE waterLevel > 0 [L735] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L534] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L539] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L541] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L587] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L590] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L628] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L632] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L767] int retValue_acc ; [L770] retValue_acc = methaneLevelCritical [L771] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L632] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L632] retValue_acc = isMethaneLevelCritical() [L634] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L592] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] tmp = isMethaneAlarm() [L594] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L600] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L561] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L579] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L600] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L541] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L547] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L919] int tmp ; [L920] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L924] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L924] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L924] tmp = getWaterLevel() [L926] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L547] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L504] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L459] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L461] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L467] tmp = __VERIFIER_nondet_int() [L469] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L477] tmp___0 = __VERIFIER_nondet_int() [L479] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L487] tmp___2 = __VERIFIER_nondet_int() [L489] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L504] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L532] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L534] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L734] COND TRUE waterLevel > 0 [L735] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L534] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L539] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L541] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L587] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L590] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L628] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L632] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L767] int retValue_acc ; [L770] retValue_acc = methaneLevelCritical [L771] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L632] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L632] retValue_acc = isMethaneLevelCritical() [L634] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L592] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] tmp = isMethaneAlarm() [L594] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L600] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L561] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L564] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L579] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L600] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L541] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L547] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L919] int tmp ; [L920] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L924] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] tmp = getWaterLevel() [L926] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L928] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L639] int retValue_acc ; [L642] retValue_acc = pumpRunning [L643] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L928] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L928] tmp___0 = isPumpRunning() [L930] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L932] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L722] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 28 procedures, 145 locations, 1 error locations. UNSAFE Result, 15.4s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 9.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2141 SDtfs, 3081 SDslu, 8465 SDs, 0 SdLazy, 4700 SolverSat, 1079 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 1338 GetRequests, 1149 SyntacticMatches, 10 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 802 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=989occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.1s AbstIntTime, 7 AbstIntIterations, 5 AbstIntStrong, 0.9976475922664187 AbsIntWeakeningRatio, 0.8665689149560117 AbsIntAvgWeakeningVarsNumRemoved, 44.341642228739005 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 469 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1662 NumberOfCodeBlocks, 1662 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1725 ConstructedInterpolants, 0 QuantifiedInterpolants, 300942 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1629 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 343/405 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...