./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product56_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_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product56_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/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 3236d89cedc127e9d85364eeaf0ba1493a1eae64 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 18:36:51,147 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:36:51,148 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:36:51,154 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:36:51,154 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:36:51,155 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:36:51,155 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:36:51,156 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:36:51,157 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:36:51,157 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:36:51,158 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:36:51,158 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:36:51,158 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:36:51,159 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:36:51,159 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:36:51,160 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:36:51,160 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:36:51,161 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:36:51,162 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:36:51,162 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:36:51,163 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:36:51,164 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:36:51,165 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:36:51,165 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:36:51,165 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:36:51,165 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:36:51,166 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:36:51,166 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:36:51,166 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:36:51,167 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:36:51,167 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:36:51,167 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:36:51,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:36:51,168 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:36:51,168 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:36:51,168 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:36:51,168 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 18:36:51,176 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:36:51,176 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:36:51,176 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 18:36:51,176 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 18:36:51,176 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 18:36:51,176 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 18:36:51,177 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 18:36:51,177 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 18:36:51,177 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 18:36:51,177 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 18:36:51,177 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 18:36:51,177 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 18:36:51,177 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 18:36:51,177 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:36:51,177 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:36:51,178 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:36:51,178 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:36:51,178 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:36:51,178 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 18:36:51,178 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:36:51,178 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 18:36:51,178 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:36:51,178 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 18:36:51,178 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 18:36:51,178 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:36:51,178 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 18:36:51,179 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:36:51,179 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 18:36:51,179 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:36:51,179 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:36:51,179 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:36:51,179 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 18:36:51,179 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 18:36:51,179 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:36:51,179 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 18:36:51,179 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 18:36:51,179 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_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/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 -> 3236d89cedc127e9d85364eeaf0ba1493a1eae64 [2018-12-09 18:36:51,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:36:51,204 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:36:51,206 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:36:51,207 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:36:51,207 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:36:51,207 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product56_false-unreach-call_false-termination.cil.c [2018-12-09 18:36:51,240 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/data/dd1ee9dcf/9195ea6ba51c45fcbf85f06df01c3837/FLAG687166856 [2018-12-09 18:36:51,586 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:36:51,586 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/sv-benchmarks/c/product-lines/minepump_spec1_product56_false-unreach-call_false-termination.cil.c [2018-12-09 18:36:51,592 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/data/dd1ee9dcf/9195ea6ba51c45fcbf85f06df01c3837/FLAG687166856 [2018-12-09 18:36:51,600 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/data/dd1ee9dcf/9195ea6ba51c45fcbf85f06df01c3837 [2018-12-09 18:36:51,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:36:51,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:36:51,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:36:51,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:36:51,606 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:36:51,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2648fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51, skipping insertion in model container [2018-12-09 18:36:51,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:36:51,637 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:36:51,785 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:36:51,792 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:36:51,876 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:36:51,896 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:36:51,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51 WrapperNode [2018-12-09 18:36:51,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:36:51,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:36:51,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:36:51,898 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:36:51,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,917 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:36:51,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:36:51,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:36:51,918 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:36:51,923 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (1/1) ... [2018-12-09 18:36:51,942 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:36:51,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:36:51,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:36:51,943 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:36:51,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 18:36:51,978 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-09 18:36:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-09 18:36:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 18:36:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 18:36:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-12-09 18:36:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-12-09 18:36:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-09 18:36:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-09 18:36:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:36:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-09 18:36:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-09 18:36:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-09 18:36:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-09 18:36:51,979 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-09 18:36:51,979 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-09 18:36:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-09 18:36:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-09 18:36:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-09 18:36:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-09 18:36:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-09 18:36:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-09 18:36:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-09 18:36:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-09 18:36:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-09 18:36:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-09 18:36:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-09 18:36:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-09 18:36:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-09 18:36:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-09 18:36:51,980 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-09 18:36:51,980 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-09 18:36:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-09 18:36:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-09 18:36:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 18:36:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-09 18:36:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2018-12-09 18:36:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2018-12-09 18:36:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-09 18:36:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-09 18:36:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-09 18:36:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-09 18:36:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 18:36:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-09 18:36:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-09 18:36:51,981 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-09 18:36:51,981 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-09 18:36:51,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-09 18:36:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-09 18:36:51,982 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-09 18:36:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-09 18:36:51,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-09 18:36:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-09 18:36:51,982 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-09 18:36:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-09 18:36:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 18:36:51,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 18:36:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-09 18:36:51,982 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-09 18:36:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-09 18:36:51,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-09 18:36:51,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:36:51,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:36:51,983 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-12-09 18:36:51,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-12-09 18:36:52,287 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:36:52,287 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 18:36:52,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:36:52 BoogieIcfgContainer [2018-12-09 18:36:52,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:36:52,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 18:36:52,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 18:36:52,291 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 18:36:52,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:36:51" (1/3) ... [2018-12-09 18:36:52,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79db9f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:36:52, skipping insertion in model container [2018-12-09 18:36:52,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:36:51" (2/3) ... [2018-12-09 18:36:52,292 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79db9f36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:36:52, skipping insertion in model container [2018-12-09 18:36:52,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:36:52" (3/3) ... [2018-12-09 18:36:52,294 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product56_false-unreach-call_false-termination.cil.c [2018-12-09 18:36:52,302 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 18:36:52,307 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 18:36:52,316 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 18:36:52,335 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 18:36:52,335 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 18:36:52,335 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 18:36:52,335 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 18:36:52,335 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 18:36:52,335 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 18:36:52,335 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 18:36:52,335 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 18:36:52,350 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2018-12-09 18:36:52,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-09 18:36:52,356 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:36:52,357 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:36:52,358 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:36:52,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:36:52,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1281580374, now seen corresponding path program 1 times [2018-12-09 18:36:52,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:36:52,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:52,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:36:52,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:52,392 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:36:52,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:36:52,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:36:52,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:36:52,512 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 18:36:52,512 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:36:52,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 18:36:52,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 18:36:52,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:36:52,524 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 2 states. [2018-12-09 18:36:52,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:36:52,549 INFO L93 Difference]: Finished difference Result 306 states and 381 transitions. [2018-12-09 18:36:52,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 18:36:52,550 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-09 18:36:52,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:36:52,557 INFO L225 Difference]: With dead ends: 306 [2018-12-09 18:36:52,557 INFO L226 Difference]: Without dead ends: 153 [2018-12-09 18:36:52,559 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 18:36:52,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-12-09 18:36:52,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-12-09 18:36:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-12-09 18:36:52,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 182 transitions. [2018-12-09 18:36:52,591 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 182 transitions. Word has length 46 [2018-12-09 18:36:52,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:36:52,592 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 182 transitions. [2018-12-09 18:36:52,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 18:36:52,592 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 182 transitions. [2018-12-09 18:36:52,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-09 18:36:52,593 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:36:52,593 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:36:52,593 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:36:52,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:36:52,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1374599222, now seen corresponding path program 1 times [2018-12-09 18:36:52,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:36:52,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:52,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:36:52,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:52,595 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:36:52,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:36:52,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:36:52,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:36:52,647 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 18:36:52,647 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:36:52,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 18:36:52,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 18:36:52,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 18:36:52,648 INFO L87 Difference]: Start difference. First operand 153 states and 182 transitions. Second operand 3 states. [2018-12-09 18:36:52,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:36:52,662 INFO L93 Difference]: Finished difference Result 245 states and 291 transitions. [2018-12-09 18:36:52,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 18:36:52,662 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-09 18:36:52,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:36:52,663 INFO L225 Difference]: With dead ends: 245 [2018-12-09 18:36:52,664 INFO L226 Difference]: Without dead ends: 144 [2018-12-09 18:36:52,664 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 18:36:52,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2018-12-09 18:36:52,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2018-12-09 18:36:52,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-12-09 18:36:52,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2018-12-09 18:36:52,672 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 47 [2018-12-09 18:36:52,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:36:52,673 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2018-12-09 18:36:52,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 18:36:52,673 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2018-12-09 18:36:52,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-12-09 18:36:52,674 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:36:52,674 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:36:52,674 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:36:52,674 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:36:52,674 INFO L82 PathProgramCache]: Analyzing trace with hash 772566134, now seen corresponding path program 1 times [2018-12-09 18:36:52,674 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:36:52,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:52,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:36:52,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:52,675 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:36:52,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:36:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:36:52,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:36:52,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 18:36:52,750 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:36:52,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 18:36:52,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 18:36:52,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 18:36:52,751 INFO L87 Difference]: Start difference. First operand 144 states and 170 transitions. Second operand 7 states. [2018-12-09 18:36:53,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:36:53,044 INFO L93 Difference]: Finished difference Result 434 states and 530 transitions. [2018-12-09 18:36:53,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 18:36:53,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-12-09 18:36:53,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:36:53,046 INFO L225 Difference]: With dead ends: 434 [2018-12-09 18:36:53,047 INFO L226 Difference]: Without dead ends: 314 [2018-12-09 18:36:53,047 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-09 18:36:53,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2018-12-09 18:36:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 302. [2018-12-09 18:36:53,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2018-12-09 18:36:53,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 368 transitions. [2018-12-09 18:36:53,069 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 368 transitions. Word has length 52 [2018-12-09 18:36:53,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:36:53,069 INFO L480 AbstractCegarLoop]: Abstraction has 302 states and 368 transitions. [2018-12-09 18:36:53,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 18:36:53,070 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 368 transitions. [2018-12-09 18:36:53,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2018-12-09 18:36:53,071 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:36:53,071 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:36:53,071 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:36:53,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:36:53,072 INFO L82 PathProgramCache]: Analyzing trace with hash 437449018, now seen corresponding path program 1 times [2018-12-09 18:36:53,072 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:36:53,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:53,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:36:53,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:53,073 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:36:53,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:36:53,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:36:53,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:36:53,148 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 18:36:53,148 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:36:53,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:36:53,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:36:53,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 18:36:53,149 INFO L87 Difference]: Start difference. First operand 302 states and 368 transitions. Second operand 6 states. [2018-12-09 18:36:53,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:36:53,269 INFO L93 Difference]: Finished difference Result 843 states and 1052 transitions. [2018-12-09 18:36:53,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 18:36:53,269 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2018-12-09 18:36:53,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:36:53,271 INFO L225 Difference]: With dead ends: 843 [2018-12-09 18:36:53,271 INFO L226 Difference]: Without dead ends: 565 [2018-12-09 18:36:53,272 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-12-09 18:36:53,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2018-12-09 18:36:53,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2018-12-09 18:36:53,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2018-12-09 18:36:53,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 686 transitions. [2018-12-09 18:36:53,299 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 686 transitions. Word has length 57 [2018-12-09 18:36:53,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:36:53,299 INFO L480 AbstractCegarLoop]: Abstraction has 559 states and 686 transitions. [2018-12-09 18:36:53,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:36:53,299 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 686 transitions. [2018-12-09 18:36:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-12-09 18:36:53,300 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:36:53,301 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:36:53,301 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:36:53,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:36:53,301 INFO L82 PathProgramCache]: Analyzing trace with hash -202619490, now seen corresponding path program 1 times [2018-12-09 18:36:53,301 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:36:53,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:53,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:36:53,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:53,302 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:36:53,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:36:53,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:36:53,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:36:53,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 18:36:53,350 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:36:53,350 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 18:36:53,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 18:36:53,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 18:36:53,351 INFO L87 Difference]: Start difference. First operand 559 states and 686 transitions. Second operand 7 states. [2018-12-09 18:36:53,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:36:53,797 INFO L93 Difference]: Finished difference Result 1454 states and 1907 transitions. [2018-12-09 18:36:53,798 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 18:36:53,798 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2018-12-09 18:36:53,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:36:53,800 INFO L225 Difference]: With dead ends: 1454 [2018-12-09 18:36:53,800 INFO L226 Difference]: Without dead ends: 919 [2018-12-09 18:36:53,802 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-09 18:36:53,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2018-12-09 18:36:53,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 821. [2018-12-09 18:36:53,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2018-12-09 18:36:53,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 999 transitions. [2018-12-09 18:36:53,835 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 999 transitions. Word has length 61 [2018-12-09 18:36:53,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:36:53,835 INFO L480 AbstractCegarLoop]: Abstraction has 821 states and 999 transitions. [2018-12-09 18:36:53,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 18:36:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 999 transitions. [2018-12-09 18:36:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 18:36:53,836 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:36:53,836 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:36:53,836 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:36:53,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:36:53,836 INFO L82 PathProgramCache]: Analyzing trace with hash 440788808, now seen corresponding path program 1 times [2018-12-09 18:36:53,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:36:53,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:53,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:36:53,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:53,837 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:36:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:36:53,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:36:53,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:36:53,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 18:36:53,886 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:36:53,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 18:36:53,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 18:36:53,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 18:36:53,887 INFO L87 Difference]: Start difference. First operand 821 states and 999 transitions. Second operand 6 states. [2018-12-09 18:36:53,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:36:53,932 INFO L93 Difference]: Finished difference Result 1638 states and 2032 transitions. [2018-12-09 18:36:53,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 18:36:53,933 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-12-09 18:36:53,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:36:53,936 INFO L225 Difference]: With dead ends: 1638 [2018-12-09 18:36:53,936 INFO L226 Difference]: Without dead ends: 841 [2018-12-09 18:36:53,938 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-09 18:36:53,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2018-12-09 18:36:53,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 841. [2018-12-09 18:36:53,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 841 states. [2018-12-09 18:36:53,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 841 states to 841 states and 1019 transitions. [2018-12-09 18:36:53,967 INFO L78 Accepts]: Start accepts. Automaton has 841 states and 1019 transitions. Word has length 89 [2018-12-09 18:36:53,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:36:53,967 INFO L480 AbstractCegarLoop]: Abstraction has 841 states and 1019 transitions. [2018-12-09 18:36:53,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 18:36:53,967 INFO L276 IsEmpty]: Start isEmpty. Operand 841 states and 1019 transitions. [2018-12-09 18:36:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 18:36:53,969 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:36:53,969 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:36:53,969 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:36:53,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:36:53,970 INFO L82 PathProgramCache]: Analyzing trace with hash 715548422, now seen corresponding path program 1 times [2018-12-09 18:36:53,970 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:36:53,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:53,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:36:53,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:53,971 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:36:53,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:36:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:36:54,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:36:54,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-09 18:36:54,035 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:36:54,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 18:36:54,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 18:36:54,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 18:36:54,035 INFO L87 Difference]: Start difference. First operand 841 states and 1019 transitions. Second operand 8 states. [2018-12-09 18:36:54,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:36:54,081 INFO L93 Difference]: Finished difference Result 1686 states and 2118 transitions. [2018-12-09 18:36:54,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 18:36:54,082 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 89 [2018-12-09 18:36:54,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:36:54,085 INFO L225 Difference]: With dead ends: 1686 [2018-12-09 18:36:54,085 INFO L226 Difference]: Without dead ends: 869 [2018-12-09 18:36:54,087 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-09 18:36:54,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 869 states. [2018-12-09 18:36:54,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 869 to 857. [2018-12-09 18:36:54,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 857 states. [2018-12-09 18:36:54,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 857 states to 857 states and 1035 transitions. [2018-12-09 18:36:54,115 INFO L78 Accepts]: Start accepts. Automaton has 857 states and 1035 transitions. Word has length 89 [2018-12-09 18:36:54,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:36:54,115 INFO L480 AbstractCegarLoop]: Abstraction has 857 states and 1035 transitions. [2018-12-09 18:36:54,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 18:36:54,116 INFO L276 IsEmpty]: Start isEmpty. Operand 857 states and 1035 transitions. [2018-12-09 18:36:54,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-12-09 18:36:54,116 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:36:54,117 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:36:54,117 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:36:54,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:36:54,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1629118619, now seen corresponding path program 1 times [2018-12-09 18:36:54,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:36:54,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:54,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:36:54,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:54,118 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:36:54,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:36:54,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:36:54,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 18:36:54,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-09 18:36:54,177 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 18:36:54,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 18:36:54,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 18:36:54,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 18:36:54,178 INFO L87 Difference]: Start difference. First operand 857 states and 1035 transitions. Second operand 4 states. [2018-12-09 18:36:54,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 18:36:54,344 INFO L93 Difference]: Finished difference Result 2779 states and 3518 transitions. [2018-12-09 18:36:54,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 18:36:54,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-12-09 18:36:54,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 18:36:54,353 INFO L225 Difference]: With dead ends: 2779 [2018-12-09 18:36:54,353 INFO L226 Difference]: Without dead ends: 1946 [2018-12-09 18:36:54,355 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 18:36:54,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1946 states. [2018-12-09 18:36:54,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1946 to 1915. [2018-12-09 18:36:54,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1915 states. [2018-12-09 18:36:54,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1915 states to 1915 states and 2371 transitions. [2018-12-09 18:36:54,420 INFO L78 Accepts]: Start accepts. Automaton has 1915 states and 2371 transitions. Word has length 89 [2018-12-09 18:36:54,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 18:36:54,421 INFO L480 AbstractCegarLoop]: Abstraction has 1915 states and 2371 transitions. [2018-12-09 18:36:54,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 18:36:54,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1915 states and 2371 transitions. [2018-12-09 18:36:54,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-12-09 18:36:54,422 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 18:36:54,422 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 18:36:54,422 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 18:36:54,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:36:54,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1430934315, now seen corresponding path program 1 times [2018-12-09 18:36:54,423 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 18:36:54,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:54,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 18:36:54,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 18:36:54,424 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 18:36:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 18:36:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 18:36:54,500 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 18:36:54,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:36:54 BoogieIcfgContainer [2018-12-09 18:36:54,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 18:36:54,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:36:54,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:36:54,589 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:36:54,589 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:36:52" (3/4) ... [2018-12-09 18:36:54,591 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 18:36:54,684 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_44dfd39e-8ab9-406d-9bbf-6ccde593fa28/bin-2019/utaipan/witness.graphml [2018-12-09 18:36:54,684 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:36:54,685 INFO L168 Benchmark]: Toolchain (without parser) took 3082.33 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 226.5 MB). Free memory was 947.0 MB in the beginning and 825.5 MB in the end (delta: 121.6 MB). Peak memory consumption was 348.0 MB. Max. memory is 11.5 GB. [2018-12-09 18:36:54,686 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:36:54,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. [2018-12-09 18:36:54,686 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:36:54,686 INFO L168 Benchmark]: Boogie Preprocessor took 24.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:36:54,686 INFO L168 Benchmark]: RCFGBuilder took 345.66 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: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:36:54,687 INFO L168 Benchmark]: TraceAbstraction took 2299.86 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 86.0 MB). Free memory was 1.1 GB in the beginning and 858.7 MB in the end (delta: 200.2 MB). Peak memory consumption was 286.2 MB. Max. memory is 11.5 GB. [2018-12-09 18:36:54,687 INFO L168 Benchmark]: Witness Printer took 95.66 ms. Allocated memory is still 1.3 GB. Free memory was 858.7 MB in the beginning and 825.5 MB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2018-12-09 18:36:54,688 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 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 293.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 26.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.06 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 24.43 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 345.66 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: 57.7 MB). Peak memory consumption was 57.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2299.86 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 86.0 MB). Free memory was 1.1 GB in the beginning and 858.7 MB in the end (delta: 200.2 MB). Peak memory consumption was 286.2 MB. Max. memory is 11.5 GB. * Witness Printer took 95.66 ms. Allocated memory is still 1.3 GB. Free memory was 858.7 MB in the beginning and 825.5 MB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 806]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int pumpRunning = 0; [L491] int systemActive = 1; [L811] int cleanupTimeShifts = 4; [L908] int waterLevel = 1; [L909] int methaneLevelCritical = 0; [L884] int retValue_acc ; [L885] 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] [L889] 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] [L890] 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] [L891] 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] [L766] int retValue_acc ; [L769] retValue_acc = 1 [L770] 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] [L891] 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] [L891] tmp = valid_product() [L893] 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] [L895] 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] [L896] 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] [L878] 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] [L413] int splverifierCounter ; [L414] int tmp ; [L415] int tmp___0 ; [L416] int tmp___1 ; [L417] int tmp___2 ; [L420] 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] [L422] 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] [L424] 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] [L430] tmp = __VERIFIER_nondet_int() [L432] 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] [L434] 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] [L926] COND TRUE waterLevel < 2 [L927] 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] [L434] 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] [L440] tmp___0 = __VERIFIER_nondet_int() [L442] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L444] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L938] COND FALSE !(\read(methaneLevelCritical)) [L941] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L444] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L450] tmp___2 = __VERIFIER_nondet_int() [L452] COND FALSE !(\read(tmp___2)) [L458] tmp___1 = __VERIFIER_nondet_int() [L460] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=1, tmp___1=0, tmp___2=0, waterLevel=2] [L469] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L505] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L507] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L579] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L582] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L553] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L556] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L571] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L527] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L530] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L676] int retValue_acc ; [L677] int tmp ; [L678] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L988] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L991] COND FALSE !(waterLevel < 2) [L995] retValue_acc = 0 [L996] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L682] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L682] tmp = isHighWaterSensorDry() [L684] COND FALSE !(\read(tmp)) [L687] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L689] retValue_acc = tmp___0 [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L532] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L532] tmp = isHighWaterLevel() [L534] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L536] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L607] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L536] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L571] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L597] RET processEnvironment__wrappee__lowWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L507] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L513] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L777] int tmp ; [L778] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L947] int retValue_acc ; [L950] retValue_acc = methaneLevelCritical [L951] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L782] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L782] tmp = isMethaneLevelCritical() [L784] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L786] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=2] [L786] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L786] tmp___0 = isPumpRunning() [L788] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=2] [L790] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L806] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 31 procedures, 166 locations, 1 error locations. UNSAFE Result, 2.2s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1562 SDtfs, 933 SDslu, 3661 SDs, 0 SdLazy, 1036 SolverSat, 194 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1915occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 159 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 623 NumberOfCodeBlocks, 623 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 522 ConstructedInterpolants, 0 QuantifiedInterpolants, 60344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...