./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product53_true-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_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product53_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4f6c889e7a16ef76fe9fccec0743002e303bbe32 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 22:36:13,314 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 22:36:13,315 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 22:36:13,322 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 22:36:13,322 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 22:36:13,322 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 22:36:13,323 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 22:36:13,324 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 22:36:13,324 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 22:36:13,325 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 22:36:13,325 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 22:36:13,325 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 22:36:13,326 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 22:36:13,326 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 22:36:13,327 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 22:36:13,327 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 22:36:13,328 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 22:36:13,328 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 22:36:13,329 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 22:36:13,330 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 22:36:13,330 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 22:36:13,331 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 22:36:13,332 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 22:36:13,332 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 22:36:13,332 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 22:36:13,333 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 22:36:13,333 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 22:36:13,334 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 22:36:13,334 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 22:36:13,335 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 22:36:13,335 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 22:36:13,335 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 22:36:13,335 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 22:36:13,335 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 22:36:13,336 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 22:36:13,336 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 22:36:13,336 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 22:36:13,343 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 22:36:13,343 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 22:36:13,344 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 22:36:13,344 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 22:36:13,344 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 22:36:13,344 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 22:36:13,345 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 22:36:13,345 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 22:36:13,345 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 22:36:13,345 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 22:36:13,345 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 22:36:13,345 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 22:36:13,345 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 22:36:13,345 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 22:36:13,345 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 22:36:13,345 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 22:36:13,345 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 22:36:13,346 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 22:36:13,346 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 22:36:13,346 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 22:36:13,346 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 22:36:13,346 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 22:36:13,346 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 22:36:13,346 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 22:36:13,346 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 22:36:13,346 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 22:36:13,346 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 22:36:13,346 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 22:36:13,347 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 22:36:13,347 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 22:36:13,347 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer 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 -> Automizer 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 -> 4f6c889e7a16ef76fe9fccec0743002e303bbe32 [2018-12-02 22:36:13,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 22:36:13,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 22:36:13,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 22:36:13,378 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 22:36:13,378 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 22:36:13,378 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product53_true-unreach-call_false-termination.cil.c [2018-12-02 22:36:13,417 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/data/4e0b69071/6a2b0cafdb6d45bcb4991a50d40889ae/FLAG983ebb88d [2018-12-02 22:36:13,858 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 22:36:13,858 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/sv-benchmarks/c/product-lines/minepump_spec5_product53_true-unreach-call_false-termination.cil.c [2018-12-02 22:36:13,864 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/data/4e0b69071/6a2b0cafdb6d45bcb4991a50d40889ae/FLAG983ebb88d [2018-12-02 22:36:13,873 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/data/4e0b69071/6a2b0cafdb6d45bcb4991a50d40889ae [2018-12-02 22:36:13,875 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 22:36:13,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 22:36:13,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 22:36:13,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 22:36:13,878 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 22:36:13,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:36:13" (1/1) ... [2018-12-02 22:36:13,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d622ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:13, skipping insertion in model container [2018-12-02 22:36:13,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:36:13" (1/1) ... [2018-12-02 22:36:13,884 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 22:36:13,905 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 22:36:14,053 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:36:14,062 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 22:36:14,138 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 22:36:14,153 INFO L195 MainTranslator]: Completed translation [2018-12-02 22:36:14,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14 WrapperNode [2018-12-02 22:36:14,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 22:36:14,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 22:36:14,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 22:36:14,154 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 22:36:14,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (1/1) ... [2018-12-02 22:36:14,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (1/1) ... [2018-12-02 22:36:14,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 22:36:14,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 22:36:14,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 22:36:14,174 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 22:36:14,180 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (1/1) ... [2018-12-02 22:36:14,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (1/1) ... [2018-12-02 22:36:14,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (1/1) ... [2018-12-02 22:36:14,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (1/1) ... [2018-12-02 22:36:14,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (1/1) ... [2018-12-02 22:36:14,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (1/1) ... [2018-12-02 22:36:14,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (1/1) ... [2018-12-02 22:36:14,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 22:36:14,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 22:36:14,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 22:36:14,196 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 22:36:14,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/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 22:36:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-02 22:36:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-02 22:36:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 22:36:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 22:36:14,228 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2018-12-02 22:36:14,228 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2018-12-02 22:36:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 22:36:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-02 22:36:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-02 22:36:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-02 22:36:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-02 22:36:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-02 22:36:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-02 22:36:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-02 22:36:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-02 22:36:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-02 22:36:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-02 22:36:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2018-12-02 22:36:14,229 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2018-12-02 22:36:14,229 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-02 22:36:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-02 22:36:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-02 22:36:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-02 22:36:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-02 22:36:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-02 22:36:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-02 22:36:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-02 22:36:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-12-02 22:36:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-12-02 22:36:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-02 22:36:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-02 22:36:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-02 22:36:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-02 22:36:14,230 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 22:36:14,230 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 22:36:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-02 22:36:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-02 22:36:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-02 22:36:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-02 22:36:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-02 22:36:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2018-12-02 22:36:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-02 22:36:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-02 22:36:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2018-12-02 22:36:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2018-12-02 22:36:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2018-12-02 22:36:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2018-12-02 22:36:14,231 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2018-12-02 22:36:14,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2018-12-02 22:36:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-02 22:36:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-02 22:36:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-02 22:36:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-02 22:36:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2018-12-02 22:36:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2018-12-02 22:36:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-12-02 22:36:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-12-02 22:36:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-02 22:36:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 22:36:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 22:36:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-02 22:36:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-02 22:36:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-02 22:36:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-02 22:36:14,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 22:36:14,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 22:36:14,510 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 22:36:14,510 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-02 22:36:14,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:14 BoogieIcfgContainer [2018-12-02 22:36:14,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 22:36:14,511 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 22:36:14,511 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 22:36:14,513 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 22:36:14,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 10:36:13" (1/3) ... [2018-12-02 22:36:14,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7306602f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:36:14, skipping insertion in model container [2018-12-02 22:36:14,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:36:14" (2/3) ... [2018-12-02 22:36:14,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7306602f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 10:36:14, skipping insertion in model container [2018-12-02 22:36:14,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:14" (3/3) ... [2018-12-02 22:36:14,515 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53_true-unreach-call_false-termination.cil.c [2018-12-02 22:36:14,521 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 22:36:14,526 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 22:36:14,535 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 22:36:14,553 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 22:36:14,553 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 22:36:14,553 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 22:36:14,553 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 22:36:14,553 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 22:36:14,553 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 22:36:14,553 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 22:36:14,553 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 22:36:14,553 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 22:36:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2018-12-02 22:36:14,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-02 22:36:14,571 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:14,572 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-02 22:36:14,573 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:14,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:14,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1368459006, now seen corresponding path program 1 times [2018-12-02 22:36:14,578 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:14,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:14,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:14,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:14,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:14,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 22:36:14,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:36:14,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 22:36:14,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 22:36:14,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 22:36:14,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 22:36:14,735 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2018-12-02 22:36:14,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:14,760 INFO L93 Difference]: Finished difference Result 308 states and 381 transitions. [2018-12-02 22:36:14,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 22:36:14,761 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2018-12-02 22:36:14,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:14,768 INFO L225 Difference]: With dead ends: 308 [2018-12-02 22:36:14,768 INFO L226 Difference]: Without dead ends: 156 [2018-12-02 22:36:14,770 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 22:36:14,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2018-12-02 22:36:14,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2018-12-02 22:36:14,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2018-12-02 22:36:14,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 184 transitions. [2018-12-02 22:36:14,803 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 184 transitions. Word has length 59 [2018-12-02 22:36:14,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:14,803 INFO L480 AbstractCegarLoop]: Abstraction has 156 states and 184 transitions. [2018-12-02 22:36:14,803 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 22:36:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 184 transitions. [2018-12-02 22:36:14,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-12-02 22:36:14,805 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:14,805 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-02 22:36:14,805 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:14,806 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:14,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1108985580, now seen corresponding path program 1 times [2018-12-02 22:36:14,806 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:14,806 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:14,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:14,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:14,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:14,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 22:36:14,859 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:36:14,859 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-02 22:36:14,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 22:36:14,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 22:36:14,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 22:36:14,860 INFO L87 Difference]: Start difference. First operand 156 states and 184 transitions. Second operand 3 states. [2018-12-02 22:36:14,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:14,875 INFO L93 Difference]: Finished difference Result 257 states and 303 transitions. [2018-12-02 22:36:14,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 22:36:14,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2018-12-02 22:36:14,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:14,877 INFO L225 Difference]: With dead ends: 257 [2018-12-02 22:36:14,877 INFO L226 Difference]: Without dead ends: 147 [2018-12-02 22:36:14,878 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 22:36:14,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-12-02 22:36:14,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-12-02 22:36:14,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-12-02 22:36:14,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 172 transitions. [2018-12-02 22:36:14,886 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 172 transitions. Word has length 60 [2018-12-02 22:36:14,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:14,886 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 172 transitions. [2018-12-02 22:36:14,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 22:36:14,886 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 172 transitions. [2018-12-02 22:36:14,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-12-02 22:36:14,887 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:14,887 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-02 22:36:14,888 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:14,888 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:14,888 INFO L82 PathProgramCache]: Analyzing trace with hash 138946551, now seen corresponding path program 1 times [2018-12-02 22:36:14,888 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:14,888 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:14,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:14,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:14,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:14,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 22:36:14,961 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:36:14,961 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 22:36:14,961 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 22:36:14,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 22:36:14,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-02 22:36:14,962 INFO L87 Difference]: Start difference. First operand 147 states and 172 transitions. Second operand 7 states. [2018-12-02 22:36:15,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:15,170 INFO L93 Difference]: Finished difference Result 266 states and 317 transitions. [2018-12-02 22:36:15,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 22:36:15,170 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2018-12-02 22:36:15,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:15,172 INFO L225 Difference]: With dead ends: 266 [2018-12-02 22:36:15,172 INFO L226 Difference]: Without dead ends: 147 [2018-12-02 22:36:15,173 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-12-02 22:36:15,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2018-12-02 22:36:15,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2018-12-02 22:36:15,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-12-02 22:36:15,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 171 transitions. [2018-12-02 22:36:15,185 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 171 transitions. Word has length 64 [2018-12-02 22:36:15,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:15,187 INFO L480 AbstractCegarLoop]: Abstraction has 147 states and 171 transitions. [2018-12-02 22:36:15,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 22:36:15,187 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 171 transitions. [2018-12-02 22:36:15,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-12-02 22:36:15,189 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:15,190 INFO L402 BasicCegarLoop]: trace histogram [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] [2018-12-02 22:36:15,190 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:15,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:15,190 INFO L82 PathProgramCache]: Analyzing trace with hash -577593803, now seen corresponding path program 1 times [2018-12-02 22:36:15,190 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:15,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:15,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:15,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:15,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:15,268 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 22:36:15,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:36:15,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-02 22:36:15,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-02 22:36:15,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-02 22:36:15,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-02 22:36:15,269 INFO L87 Difference]: Start difference. First operand 147 states and 171 transitions. Second operand 5 states. [2018-12-02 22:36:15,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:15,587 INFO L93 Difference]: Finished difference Result 375 states and 455 transitions. [2018-12-02 22:36:15,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 22:36:15,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2018-12-02 22:36:15,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:15,589 INFO L225 Difference]: With dead ends: 375 [2018-12-02 22:36:15,589 INFO L226 Difference]: Without dead ends: 256 [2018-12-02 22:36:15,590 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 22:36:15,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2018-12-02 22:36:15,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 238. [2018-12-02 22:36:15,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2018-12-02 22:36:15,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 272 transitions. [2018-12-02 22:36:15,605 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 272 transitions. Word has length 82 [2018-12-02 22:36:15,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:15,606 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 272 transitions. [2018-12-02 22:36:15,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-02 22:36:15,606 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 272 transitions. [2018-12-02 22:36:15,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2018-12-02 22:36:15,607 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:15,607 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1] [2018-12-02 22:36:15,608 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:15,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:15,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1652182924, now seen corresponding path program 1 times [2018-12-02 22:36:15,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:15,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:15,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:15,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:15,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:15,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-02 22:36:15,681 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:36:15,681 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 22:36:15,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 22:36:15,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 22:36:15,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 22:36:15,682 INFO L87 Difference]: Start difference. First operand 238 states and 272 transitions. Second operand 7 states. [2018-12-02 22:36:16,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:16,002 INFO L93 Difference]: Finished difference Result 465 states and 547 transitions. [2018-12-02 22:36:16,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 22:36:16,003 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 96 [2018-12-02 22:36:16,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:16,004 INFO L225 Difference]: With dead ends: 465 [2018-12-02 22:36:16,004 INFO L226 Difference]: Without dead ends: 255 [2018-12-02 22:36:16,005 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-12-02 22:36:16,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-12-02 22:36:16,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 237. [2018-12-02 22:36:16,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2018-12-02 22:36:16,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 269 transitions. [2018-12-02 22:36:16,018 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 269 transitions. Word has length 96 [2018-12-02 22:36:16,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:16,019 INFO L480 AbstractCegarLoop]: Abstraction has 237 states and 269 transitions. [2018-12-02 22:36:16,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 22:36:16,019 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 269 transitions. [2018-12-02 22:36:16,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-12-02 22:36:16,020 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:16,020 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-12-02 22:36:16,021 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:16,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:16,021 INFO L82 PathProgramCache]: Analyzing trace with hash 814151554, now seen corresponding path program 1 times [2018-12-02 22:36:16,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:16,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:16,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:16,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:16,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:16,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 22:36:16,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:36:16,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 22:36:16,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 22:36:16,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 22:36:16,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 22:36:16,082 INFO L87 Difference]: Start difference. First operand 237 states and 269 transitions. Second operand 6 states. [2018-12-02 22:36:16,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:16,100 INFO L93 Difference]: Finished difference Result 451 states and 521 transitions. [2018-12-02 22:36:16,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-02 22:36:16,100 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 97 [2018-12-02 22:36:16,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:16,102 INFO L225 Difference]: With dead ends: 451 [2018-12-02 22:36:16,102 INFO L226 Difference]: Without dead ends: 242 [2018-12-02 22:36:16,103 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-02 22:36:16,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2018-12-02 22:36:16,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2018-12-02 22:36:16,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2018-12-02 22:36:16,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 274 transitions. [2018-12-02 22:36:16,112 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 274 transitions. Word has length 97 [2018-12-02 22:36:16,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:16,113 INFO L480 AbstractCegarLoop]: Abstraction has 242 states and 274 transitions. [2018-12-02 22:36:16,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 22:36:16,113 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 274 transitions. [2018-12-02 22:36:16,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-12-02 22:36:16,113 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:16,114 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-12-02 22:36:16,114 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:16,114 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:16,114 INFO L82 PathProgramCache]: Analyzing trace with hash 741764996, now seen corresponding path program 1 times [2018-12-02 22:36:16,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:16,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:16,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:16,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:16,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:16,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:16,166 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 22:36:16,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:36:16,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-12-02 22:36:16,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-02 22:36:16,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-02 22:36:16,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 22:36:16,167 INFO L87 Difference]: Start difference. First operand 242 states and 274 transitions. Second operand 8 states. [2018-12-02 22:36:16,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:16,196 INFO L93 Difference]: Finished difference Result 463 states and 539 transitions. [2018-12-02 22:36:16,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 22:36:16,196 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 97 [2018-12-02 22:36:16,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:16,197 INFO L225 Difference]: With dead ends: 463 [2018-12-02 22:36:16,197 INFO L226 Difference]: Without dead ends: 249 [2018-12-02 22:36:16,198 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-12-02 22:36:16,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2018-12-02 22:36:16,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 246. [2018-12-02 22:36:16,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2018-12-02 22:36:16,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 278 transitions. [2018-12-02 22:36:16,208 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 278 transitions. Word has length 97 [2018-12-02 22:36:16,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:16,208 INFO L480 AbstractCegarLoop]: Abstraction has 246 states and 278 transitions. [2018-12-02 22:36:16,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-02 22:36:16,208 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 278 transitions. [2018-12-02 22:36:16,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-12-02 22:36:16,209 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:16,209 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1] [2018-12-02 22:36:16,210 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:16,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:16,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1071530757, now seen corresponding path program 1 times [2018-12-02 22:36:16,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:16,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:16,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:16,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:16,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:16,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:16,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 22:36:16,257 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:36:16,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-02 22:36:16,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-02 22:36:16,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-02 22:36:16,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 22:36:16,257 INFO L87 Difference]: Start difference. First operand 246 states and 278 transitions. Second operand 4 states. [2018-12-02 22:36:16,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:16,386 INFO L93 Difference]: Finished difference Result 720 states and 854 transitions. [2018-12-02 22:36:16,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-02 22:36:16,386 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 97 [2018-12-02 22:36:16,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:16,388 INFO L225 Difference]: With dead ends: 720 [2018-12-02 22:36:16,388 INFO L226 Difference]: Without dead ends: 502 [2018-12-02 22:36:16,389 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-02 22:36:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2018-12-02 22:36:16,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 493. [2018-12-02 22:36:16,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 493 states. [2018-12-02 22:36:16,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 573 transitions. [2018-12-02 22:36:16,407 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 573 transitions. Word has length 97 [2018-12-02 22:36:16,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:16,407 INFO L480 AbstractCegarLoop]: Abstraction has 493 states and 573 transitions. [2018-12-02 22:36:16,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-02 22:36:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 573 transitions. [2018-12-02 22:36:16,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-12-02 22:36:16,408 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:16,408 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 22:36:16,409 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:16,409 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:16,409 INFO L82 PathProgramCache]: Analyzing trace with hash -953362517, now seen corresponding path program 1 times [2018-12-02 22:36:16,409 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:16,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:16,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:16,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:16,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:16,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-02 22:36:16,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 22:36:16,500 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 22:36:16,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 22:36:16,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 22:36:16,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-12-02 22:36:16,500 INFO L87 Difference]: Start difference. First operand 493 states and 573 transitions. Second operand 9 states. [2018-12-02 22:36:17,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:17,101 INFO L93 Difference]: Finished difference Result 1284 states and 1562 transitions. [2018-12-02 22:36:17,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-02 22:36:17,102 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 101 [2018-12-02 22:36:17,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:17,105 INFO L225 Difference]: With dead ends: 1284 [2018-12-02 22:36:17,105 INFO L226 Difference]: Without dead ends: 892 [2018-12-02 22:36:17,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-12-02 22:36:17,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2018-12-02 22:36:17,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 816. [2018-12-02 22:36:17,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 816 states. [2018-12-02 22:36:17,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 937 transitions. [2018-12-02 22:36:17,140 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 937 transitions. Word has length 101 [2018-12-02 22:36:17,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:17,140 INFO L480 AbstractCegarLoop]: Abstraction has 816 states and 937 transitions. [2018-12-02 22:36:17,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 22:36:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 937 transitions. [2018-12-02 22:36:17,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2018-12-02 22:36:17,142 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:17,142 INFO L402 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:36:17,142 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:17,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:17,142 INFO L82 PathProgramCache]: Analyzing trace with hash 433238259, now seen corresponding path program 1 times [2018-12-02 22:36:17,142 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:17,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:17,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:17,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:17,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:17,225 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 22 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-12-02 22:36:17,225 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:36:17,225 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/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 22:36:17,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:17,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:17,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:36:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 29 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 22:36:17,448 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 22:36:17,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 16 [2018-12-02 22:36:17,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-12-02 22:36:17,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-12-02 22:36:17,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2018-12-02 22:36:17,449 INFO L87 Difference]: Start difference. First operand 816 states and 937 transitions. Second operand 16 states. [2018-12-02 22:36:18,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:18,008 INFO L93 Difference]: Finished difference Result 1799 states and 2148 transitions. [2018-12-02 22:36:18,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-12-02 22:36:18,008 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 178 [2018-12-02 22:36:18,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:18,011 INFO L225 Difference]: With dead ends: 1799 [2018-12-02 22:36:18,011 INFO L226 Difference]: Without dead ends: 1082 [2018-12-02 22:36:18,013 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=775, Unknown=0, NotChecked=0, Total=930 [2018-12-02 22:36:18,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2018-12-02 22:36:18,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 962. [2018-12-02 22:36:18,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 962 states. [2018-12-02 22:36:18,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1117 transitions. [2018-12-02 22:36:18,045 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1117 transitions. Word has length 178 [2018-12-02 22:36:18,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:18,046 INFO L480 AbstractCegarLoop]: Abstraction has 962 states and 1117 transitions. [2018-12-02 22:36:18,046 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-12-02 22:36:18,046 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1117 transitions. [2018-12-02 22:36:18,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2018-12-02 22:36:18,049 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:18,049 INFO L402 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 22:36:18,049 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:18,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:18,049 INFO L82 PathProgramCache]: Analyzing trace with hash -818429207, now seen corresponding path program 1 times [2018-12-02 22:36:18,049 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:18,049 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:18,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:18,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:18,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 95 proven. 9 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2018-12-02 22:36:18,168 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:36:18,169 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/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 22:36:18,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:18,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:18,277 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:36:18,401 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 208 proven. 4 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-12-02 22:36:18,426 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-02 22:36:18,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12] total 18 [2018-12-02 22:36:18,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-02 22:36:18,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-02 22:36:18,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2018-12-02 22:36:18,428 INFO L87 Difference]: Start difference. First operand 962 states and 1117 transitions. Second operand 18 states. [2018-12-02 22:36:19,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:19,994 INFO L93 Difference]: Finished difference Result 2566 states and 3162 transitions. [2018-12-02 22:36:19,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-12-02 22:36:19,994 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 301 [2018-12-02 22:36:19,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:19,999 INFO L225 Difference]: With dead ends: 2566 [2018-12-02 22:36:20,000 INFO L226 Difference]: Without dead ends: 1385 [2018-12-02 22:36:20,003 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 346 GetRequests, 306 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=336, Invalid=1304, Unknown=0, NotChecked=0, Total=1640 [2018-12-02 22:36:20,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2018-12-02 22:36:20,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1281. [2018-12-02 22:36:20,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1281 states. [2018-12-02 22:36:20,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1473 transitions. [2018-12-02 22:36:20,056 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1473 transitions. Word has length 301 [2018-12-02 22:36:20,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:20,056 INFO L480 AbstractCegarLoop]: Abstraction has 1281 states and 1473 transitions. [2018-12-02 22:36:20,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-02 22:36:20,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1473 transitions. [2018-12-02 22:36:20,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2018-12-02 22:36:20,060 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 22:36:20,060 INFO L402 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:36:20,060 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 22:36:20,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 22:36:20,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1690902041, now seen corresponding path program 1 times [2018-12-02 22:36:20,061 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 22:36:20,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 22:36:20,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:20,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:20,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 22:36:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:20,156 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 107 proven. 16 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2018-12-02 22:36:20,156 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-02 22:36:20,156 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-02 22:36:20,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 22:36:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 22:36:20,267 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 22:36:20,401 INFO L134 CoverageAnalysis]: Checked inductivity of 569 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2018-12-02 22:36:20,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-02 22:36:20,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2018-12-02 22:36:20,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-02 22:36:20,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-02 22:36:20,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2018-12-02 22:36:20,417 INFO L87 Difference]: Start difference. First operand 1281 states and 1473 transitions. Second operand 13 states. [2018-12-02 22:36:20,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 22:36:20,454 INFO L93 Difference]: Finished difference Result 1560 states and 1784 transitions. [2018-12-02 22:36:20,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 22:36:20,454 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 386 [2018-12-02 22:36:20,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 22:36:20,455 INFO L225 Difference]: With dead ends: 1560 [2018-12-02 22:36:20,455 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 22:36:20,457 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-12-02 22:36:20,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 22:36:20,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 22:36:20,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 22:36:20,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 22:36:20,457 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 386 [2018-12-02 22:36:20,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 22:36:20,457 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 22:36:20,457 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-02 22:36:20,457 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 22:36:20,457 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 22:36:20,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 22:36:20,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,496 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,503 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,565 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,603 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:20,669 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-02 22:36:21,216 WARN L180 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 32 [2018-12-02 22:36:21,563 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 40 [2018-12-02 22:36:22,337 WARN L180 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 36 [2018-12-02 22:36:22,748 INFO L451 ceAbstractionStarter]: At program point select_helpersFINAL(lines 665 671) the Hoare annotation is: true [2018-12-02 22:36:22,748 INFO L448 ceAbstractionStarter]: For program point select_helpersEXIT(lines 665 671) no Hoare annotation was computed. [2018-12-02 22:36:22,748 INFO L448 ceAbstractionStarter]: For program point valid_productEXIT(lines 672 680) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L451 ceAbstractionStarter]: At program point valid_productENTRY(lines 672 680) the Hoare annotation is: true [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point valid_productFINAL(lines 672 680) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L444 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__1ENTRY(lines 753 760) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (= ~switchedOnBeforeTS~0 ~pumpRunning~0) (not (= ~systemActive~0 1)) (not (= |old(~switchedOnBeforeTS~0)| ~pumpRunning~0)) (not (= ~waterLevel~0 1))) [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__1EXIT(lines 753 760) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__1FINAL(lines 753 760) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L444 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__2ENTRY(lines 761 770) the Hoare annotation is: (let ((.cse0 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= ~waterLevel~0 1)))) (and (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse2) (or .cse0 (= ~switchedOnBeforeTS~0 ~pumpRunning~0) .cse1 (not (= |old(~switchedOnBeforeTS~0)| ~pumpRunning~0)) .cse2))) [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point L766(line 766) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__2EXIT(lines 761 770) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__2FINAL(lines 761 770) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L444 ceAbstractionStarter]: At program point L786(line 786) the Hoare annotation is: (let ((.cse4 (not (= ~waterLevel~0 1))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1))) (.cse3 (not (= ~switchedOnBeforeTS~0 ~pumpRunning~0))) (.cse1 (not (= ~waterLevel~0 2)))) (and (or (not (= 1 ~pumpRunning~0)) .cse0 .cse1) (or .cse2 .cse0 .cse3 .cse4) (or (< ~switchedOnBeforeTS~0 1) .cse2 .cse0 .cse4) (or .cse2 .cse0 .cse3 .cse1))) [2018-12-02 22:36:22,749 INFO L451 ceAbstractionStarter]: At program point __utac_acc__Specification5_spec__3ENTRY(lines 771 799) the Hoare annotation is: true [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point L784(lines 784 790) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point L783(lines 783 793) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L444 ceAbstractionStarter]: At program point L781(line 781) the Hoare annotation is: (let ((.cse1 (not (= ~waterLevel~0 2))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= ~systemActive~0 1))) (.cse3 (not (= ~switchedOnBeforeTS~0 ~pumpRunning~0))) (.cse5 (not (= ~waterLevel~0 1))) (.cse4 (<= __utac_acc__Specification5_spec__3_~tmp~9 ~waterLevel~0))) (and (or (not (= 1 ~pumpRunning~0)) .cse0 .cse1) (or .cse2 .cse0 .cse3 .cse1) (or (< ~switchedOnBeforeTS~0 1) .cse2 .cse4 .cse0 .cse5) (or .cse2 .cse0 .cse3 .cse5 .cse4))) [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point L781-1(line 781) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point __utac_acc__Specification5_spec__3EXIT(lines 771 799) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point L779(lines 779 796) no Hoare annotation was computed. [2018-12-02 22:36:22,749 INFO L448 ceAbstractionStarter]: For program point L779-1(lines 771 799) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L451 ceAbstractionStarter]: At program point L777(line 777) the Hoare annotation is: true [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point L777-1(line 777) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L444 ceAbstractionStarter]: At program point mainENTRY(lines 874 896) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 874 896) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L444 ceAbstractionStarter]: At program point L886(line 886) the Hoare annotation is: (or (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= main_~tmp~10 1) (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 22:36:22,750 INFO L444 ceAbstractionStarter]: At program point L886-1(line 886) the Hoare annotation is: (or (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= main_~tmp~10 1) (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point L884(lines 884 891) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point L884-1(lines 884 891) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point L882(line 882) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L444 ceAbstractionStarter]: At program point L881(line 881) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 22:36:22,750 INFO L444 ceAbstractionStarter]: At program point L880(line 880) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 22:36:22,750 INFO L444 ceAbstractionStarter]: At program point L880-1(line 880) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 874 896) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 560 568) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L451 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 560 568) the Hoare annotation is: true [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 560 568) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L451 ceAbstractionStarter]: At program point isLowWaterLevelENTRY(lines 624 642) the Hoare annotation is: true [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point L633(lines 633 637) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L451 ceAbstractionStarter]: At program point L631(line 631) the Hoare annotation is: true [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point L633-2(lines 633 637) no Hoare annotation was computed. [2018-12-02 22:36:22,750 INFO L448 ceAbstractionStarter]: For program point L631-1(line 631) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelEXIT(lines 624 642) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point isLowWaterLevelFINAL(lines 624 642) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point select_featuresEXIT(lines 658 664) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L451 ceAbstractionStarter]: At program point select_featuresFINAL(lines 658 664) the Hoare annotation is: true [2018-12-02 22:36:22,751 INFO L444 ceAbstractionStarter]: At program point runTestENTRY(lines 863 873) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point runTestEXIT(lines 863 873) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point runTestFINAL(lines 863 873) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L444 ceAbstractionStarter]: At program point L868(line 868) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 22:36:22,751 INFO L451 ceAbstractionStarter]: At program point isMethaneAlarmENTRY(lines 549 559) the Hoare annotation is: true [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmEXIT(lines 549 559) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L451 ceAbstractionStarter]: At program point L554(line 554) the Hoare annotation is: true [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point L554-1(line 554) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point isMethaneAlarmFINAL(lines 549 559) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L444 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 541 548) the Hoare annotation is: (or (= ~switchedOnBeforeTS~0 ~pumpRunning~0) (not (= 1 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)) (not (= ~waterLevel~0 1))) [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 541 548) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 541 548) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point L990(lines 990 996) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryEXIT(lines 986 999) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L451 ceAbstractionStarter]: At program point isHighWaterSensorDryENTRY(lines 986 999) the Hoare annotation is: true [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point isHighWaterSensorDryFINAL(lines 986 999) no Hoare annotation was computed. [2018-12-02 22:36:22,751 INFO L448 ceAbstractionStarter]: For program point L514-1(line 514) no Hoare annotation was computed. [2018-12-02 22:36:22,752 INFO L448 ceAbstractionStarter]: For program point L512(lines 512 529) no Hoare annotation was computed. [2018-12-02 22:36:22,752 INFO L448 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 508 532) no Hoare annotation was computed. [2018-12-02 22:36:22,752 INFO L444 ceAbstractionStarter]: At program point processEnvironmentENTRY(lines 508 532) the Hoare annotation is: (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse0 (= ~switchedOnBeforeTS~0 ~pumpRunning~0))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse2 .cse3) (or (or .cse2 (or .cse4 .cse1 (not (= ~waterLevel~0 2)))) .cse0))) [2018-12-02 22:36:22,752 INFO L444 ceAbstractionStarter]: At program point L527(line 527) the Hoare annotation is: (let ((.cse2 (not (= ~waterLevel~0 1))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse4 (= ~switchedOnBeforeTS~0 ~pumpRunning~0))) (and (or (not (= 1 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse1 .cse2) (or (or .cse1 (or .cse3 .cse0 (not (= ~waterLevel~0 2)))) .cse4))) [2018-12-02 22:36:22,752 INFO L448 ceAbstractionStarter]: For program point L527-1(lines 508 532) no Hoare annotation was computed. [2018-12-02 22:36:22,752 INFO L444 ceAbstractionStarter]: At program point L522(line 522) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~waterLevel~0 1)))) (and (or .cse0 (or .cse1 .cse2 (not (= ~waterLevel~0 2)))) (or (= ~switchedOnBeforeTS~0 ~pumpRunning~0) (not (= 1 |old(~pumpRunning~0)|)) .cse2 .cse0 .cse3) (or .cse1 .cse2 .cse0 .cse3))) [2018-12-02 22:36:22,752 INFO L444 ceAbstractionStarter]: At program point L518(line 518) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~waterLevel~0 1)))) (and (or .cse0 (or .cse1 .cse2 (not (= ~waterLevel~0 2)))) (or (= ~switchedOnBeforeTS~0 ~pumpRunning~0) (not (= 1 |old(~pumpRunning~0)|)) .cse2 .cse0 .cse3) (or .cse1 .cse2 .cse0 .cse3))) [2018-12-02 22:36:22,752 INFO L448 ceAbstractionStarter]: For program point L516(lines 516 524) no Hoare annotation was computed. [2018-12-02 22:36:22,752 INFO L444 ceAbstractionStarter]: At program point L514(line 514) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~waterLevel~0 1)))) (and (or .cse0 (or .cse1 .cse2 (not (= ~waterLevel~0 2)))) (or (= ~switchedOnBeforeTS~0 ~pumpRunning~0) (not (= 1 |old(~pumpRunning~0)|)) .cse2 .cse0 .cse3) (or .cse1 .cse2 .cse0 .cse3))) [2018-12-02 22:36:22,752 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__baseEXIT(lines 448 454) no Hoare annotation was computed. [2018-12-02 22:36:22,752 INFO L451 ceAbstractionStarter]: At program point processEnvironment__wrappee__baseFINAL(lines 448 454) the Hoare annotation is: true [2018-12-02 22:36:22,752 INFO L444 ceAbstractionStarter]: At program point testENTRY(lines 685 748) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 22:36:22,752 INFO L448 ceAbstractionStarter]: For program point L731(lines 731 735) no Hoare annotation was computed. [2018-12-02 22:36:22,752 INFO L444 ceAbstractionStarter]: At program point L731-2(lines 725 736) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (= 2 ~waterLevel~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse2 (= ~pumpRunning~0 1) .cse1) (not (= |old(~waterLevel~0)| 1)) (and .cse0 .cse2 .cse1))) [2018-12-02 22:36:22,752 INFO L448 ceAbstractionStarter]: For program point L696(lines 695 740) no Hoare annotation was computed. [2018-12-02 22:36:22,752 INFO L448 ceAbstractionStarter]: For program point testFINAL(lines 685 748) no Hoare annotation was computed. [2018-12-02 22:36:22,752 INFO L448 ceAbstractionStarter]: For program point L725(lines 725 736) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L444 ceAbstractionStarter]: At program point L717(line 717) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse2 (= 2 ~waterLevel~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (= ~systemActive~0 1)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse2 (= ~pumpRunning~0 1) .cse1) (not (= |old(~waterLevel~0)| 1)) (and .cse0 .cse2 .cse1))) [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point L715(lines 715 721) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point L715-1(lines 715 721) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L444 ceAbstractionStarter]: At program point L707(line 707) the Hoare annotation is: (let ((.cse0 (= 2 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= ~pumpRunning~0 1) .cse1) (and .cse2 .cse0 .cse1 (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1)) (and .cse2 (= 1 ~waterLevel~0) .cse1))) [2018-12-02 22:36:22,753 INFO L444 ceAbstractionStarter]: At program point L738(lines 695 740) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse0 (= 2 ~waterLevel~0)) (.cse1 (= test_~splverifierCounter~0 0))) (or (and .cse0 (= ~pumpRunning~0 1) .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and .cse2 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (= ~systemActive~0 1)) (and .cse2 .cse0 .cse1 (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 1)))) [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point L705(lines 705 711) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point L705-1(lines 705 711) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point L697(lines 697 701) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L444 ceAbstractionStarter]: At program point L741(lines 694 742) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= |old(~waterLevel~0)| 1))) [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point testEXIT(lines 685 748) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryFINAL(lines 1000 1008) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L451 ceAbstractionStarter]: At program point isLowWaterSensorDryENTRY(lines 1000 1008) the Hoare annotation is: true [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point isLowWaterSensorDryEXIT(lines 1000 1008) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L444 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0)) [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point activatePumpFINAL(lines 533 540) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point activatePumpEXIT(lines 533 540) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L444 ceAbstractionStarter]: At program point activatePumpENTRY(lines 533 540) the Hoare annotation is: (or (= ~switchedOnBeforeTS~0 ~pumpRunning~0) (not (= 0 |old(~pumpRunning~0)|)) (not (= ~systemActive~0 1)) (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)) (not (= ~waterLevel~0 2))) [2018-12-02 22:36:22,753 INFO L451 ceAbstractionStarter]: At program point getWaterLevelENTRY(lines 977 985) the Hoare annotation is: true [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point getWaterLevelFINAL(lines 977 985) no Hoare annotation was computed. [2018-12-02 22:36:22,753 INFO L448 ceAbstractionStarter]: For program point getWaterLevelEXIT(lines 977 985) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelEXIT(lines 605 623) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point L614(lines 614 618) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L451 ceAbstractionStarter]: At program point isHighWaterLevelENTRY(lines 605 623) the Hoare annotation is: true [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point isHighWaterLevelFINAL(lines 605 623) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L451 ceAbstractionStarter]: At program point L612(line 612) the Hoare annotation is: true [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point L614-2(lines 614 618) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point L612-1(line 612) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L451 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 933 944) the Hoare annotation is: true [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point L937-1(lines 933 944) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 933 944) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point cleanupEXIT(lines 802 831) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L451 ceAbstractionStarter]: At program point cleanupENTRY(lines 802 831) the Hoare annotation is: true [2018-12-02 22:36:22,754 INFO L451 ceAbstractionStarter]: At program point L827(lines 802 831) the Hoare annotation is: true [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point L823(line 823) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point L816(lines 816 820) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L451 ceAbstractionStarter]: At program point L816-1(lines 816 820) the Hoare annotation is: true [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point L813(line 813) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L451 ceAbstractionStarter]: At program point L812-2(lines 812 826) the Hoare annotation is: true [2018-12-02 22:36:22,754 INFO L451 ceAbstractionStarter]: At program point L808(line 808) the Hoare annotation is: true [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point L808-1(line 808) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L451 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 945 953) the Hoare annotation is: true [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 945 953) no Hoare annotation was computed. [2018-12-02 22:36:22,754 INFO L448 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 945 953) no Hoare annotation was computed. [2018-12-02 22:36:22,755 INFO L444 ceAbstractionStarter]: At program point L437(line 437) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0)) (.cse5 (= ~switchedOnBeforeTS~0 ~pumpRunning~0))) (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse4 .cse5)) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~waterLevel~0)| 2)))) (and (or (or .cse0 .cse1 .cse2) .cse3) (or .cse0 .cse3 .cse1 (not (= |old(~waterLevel~0)| 1))) (or (and (= 1 ~waterLevel~0) .cse4 .cse5) (or (or .cse1 .cse2) (not (= 1 |old(~pumpRunning~0)|))))))) [2018-12-02 22:36:22,755 INFO L444 ceAbstractionStarter]: At program point L435(lines 435 441) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse1 (and .cse4 (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~switchedOnBeforeTS~0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 1))) (or (and (<= 1 ~switchedOnBeforeTS~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (or (or .cse2 .cse3) (not (= 1 |old(~pumpRunning~0)|)))) (or (or .cse0 .cse2 .cse3) .cse1 (and (= ~pumpRunning~0 1) .cse4))))) [2018-12-02 22:36:22,755 INFO L444 ceAbstractionStarter]: At program point timeShiftENTRY(lines 421 447) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| ~pumpRunning~0))) (let ((.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse5 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse4 (not (= |old(~waterLevel~0)| 1)))) (and (or (or .cse0 .cse1 .cse2) (and (= 2 ~waterLevel~0) .cse3)) (or (< |old(~switchedOnBeforeTS~0)| 1) .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse4) (or (or (or .cse1 .cse2) (not (= 1 |old(~pumpRunning~0)|))) .cse5) (or .cse0 .cse1 .cse5 .cse4) (or .cse0 (= ~switchedOnBeforeTS~0 ~pumpRunning~0) .cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse4)))) [2018-12-02 22:36:22,755 INFO L444 ceAbstractionStarter]: At program point L430(line 430) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse2 (not (= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1))) (or (or (or .cse1 .cse2) (not (= 1 |old(~pumpRunning~0)|))) (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |old(~pumpRunning~0)| ~pumpRunning~0) (= ~switchedOnBeforeTS~0 ~pumpRunning~0))))) [2018-12-02 22:36:22,755 INFO L448 ceAbstractionStarter]: For program point L428(lines 424 446) no Hoare annotation was computed. [2018-12-02 22:36:22,755 INFO L448 ceAbstractionStarter]: For program point timeShiftEXIT(lines 421 447) no Hoare annotation was computed. [2018-12-02 22:36:22,755 INFO L448 ceAbstractionStarter]: For program point L426(lines 424 446) no Hoare annotation was computed. [2018-12-02 22:36:22,755 INFO L448 ceAbstractionStarter]: For program point timeShiftFINAL(lines 421 447) no Hoare annotation was computed. [2018-12-02 22:36:22,755 INFO L448 ceAbstractionStarter]: For program point L913-1(lines 909 920) no Hoare annotation was computed. [2018-12-02 22:36:22,755 INFO L444 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 909 920) the Hoare annotation is: (or (or (not (= ~systemActive~0 1)) (not (= 1 ~pumpRunning~0)) (not (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= |old(~waterLevel~0)| 2))) (= |old(~waterLevel~0)| ~waterLevel~0)) [2018-12-02 22:36:22,755 INFO L448 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 909 920) no Hoare annotation was computed. [2018-12-02 22:36:22,755 INFO L448 ceAbstractionStarter]: For program point setupEXIT(lines 856 862) no Hoare annotation was computed. [2018-12-02 22:36:22,755 INFO L451 ceAbstractionStarter]: At program point setupFINAL(lines 856 862) the Hoare annotation is: true [2018-12-02 22:36:22,755 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 22:36:22,755 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= ~systemActive~0 1) (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) [2018-12-02 22:36:22,755 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 22:36:22,755 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 22:36:22,755 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 456 480) the Hoare annotation is: (let ((.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (= ~switchedOnBeforeTS~0 ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~waterLevel~0 1))) (or (or .cse3 (or .cse0 .cse2 (not (= ~waterLevel~0 2)))) .cse1))) [2018-12-02 22:36:22,755 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 456 480) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L444 ceAbstractionStarter]: At program point L475(line 475) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (or .cse1 .cse2 (not (= ~waterLevel~0 2)))) (or .cse1 .cse2 .cse0 (not (= ~waterLevel~0 1))))) [2018-12-02 22:36:22,756 INFO L448 ceAbstractionStarter]: For program point L475-1(lines 456 480) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L444 ceAbstractionStarter]: At program point L470(line 470) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~systemActive~0 1))) (.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~3) (= ~switchedOnBeforeTS~0 ~pumpRunning~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (or .cse1 (or .cse2 .cse3 (not (= ~waterLevel~0 2))))) (or .cse2 .cse3 .cse0 .cse1 (not (= ~waterLevel~0 1))))) [2018-12-02 22:36:22,756 INFO L444 ceAbstractionStarter]: At program point L466(line 466) the Hoare annotation is: (let ((.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 .cse2 (not (= ~waterLevel~0 1))) (or (= ~switchedOnBeforeTS~0 ~pumpRunning~0) (or .cse2 (or .cse0 .cse1 (not (= ~waterLevel~0 2))))))) [2018-12-02 22:36:22,756 INFO L448 ceAbstractionStarter]: For program point L464(lines 464 472) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L444 ceAbstractionStarter]: At program point L462(line 462) the Hoare annotation is: (let ((.cse3 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse1 (= ~switchedOnBeforeTS~0 ~pumpRunning~0))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= ~waterLevel~0 1))) (or (or .cse3 (or .cse0 .cse2 (not (= ~waterLevel~0 2)))) .cse1))) [2018-12-02 22:36:22,756 INFO L448 ceAbstractionStarter]: For program point L462-1(line 462) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L448 ceAbstractionStarter]: For program point L460(lines 460 477) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L448 ceAbstractionStarter]: For program point waterRiseEXIT(lines 921 932) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L448 ceAbstractionStarter]: For program point L925-1(lines 921 932) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L444 ceAbstractionStarter]: At program point waterRiseENTRY(lines 921 932) the Hoare annotation is: (let ((.cse2 (not (= |old(~waterLevel~0)| 2))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse1 (not (= ~systemActive~0 1)))) (and (or .cse0 .cse1 (not (= 1 ~pumpRunning~0)) .cse2) (or (or .cse3 .cse1) (not (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) .cse2 .cse0) (or (= 1 ~waterLevel~0) (or .cse3 .cse1 (not (= |old(~waterLevel~0)| 1)))))) [2018-12-02 22:36:22,756 INFO L448 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 898 905) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L448 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 902) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L451 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 898 905) the Hoare annotation is: true [2018-12-02 22:36:22,756 INFO L448 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 898 905) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L448 ceAbstractionStarter]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 482 506) no Hoare annotation was computed. [2018-12-02 22:36:22,756 INFO L444 ceAbstractionStarter]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 482 506) the Hoare annotation is: (let ((.cse3 (not (= ~waterLevel~0 1))) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= ~systemActive~0 1))) (.cse0 (= ~switchedOnBeforeTS~0 ~pumpRunning~0))) (and (or .cse0 (not (= 1 |old(~pumpRunning~0)|)) .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse2 .cse3) (or (or .cse2 (or .cse4 .cse1 (not (= ~waterLevel~0 2)))) .cse0))) [2018-12-02 22:36:22,757 INFO L444 ceAbstractionStarter]: At program point L501(line 501) the Hoare annotation is: (let ((.cse2 (not (= ~waterLevel~0 1))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (= ~systemActive~0 1))) (.cse4 (= ~switchedOnBeforeTS~0 ~pumpRunning~0))) (and (or (not (= 1 |old(~pumpRunning~0)|)) .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse1 .cse2) (or (or .cse1 (or .cse3 .cse0 (not (= ~waterLevel~0 2)))) .cse4))) [2018-12-02 22:36:22,757 INFO L448 ceAbstractionStarter]: For program point L501-1(lines 482 506) no Hoare annotation was computed. [2018-12-02 22:36:22,757 INFO L444 ceAbstractionStarter]: At program point L496(line 496) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~waterLevel~0 1)))) (and (or .cse0 (or .cse1 .cse2 (not (= ~waterLevel~0 2)))) (or .cse1 .cse2 .cse0 .cse3) (or (not (= 1 |old(~pumpRunning~0)|)) .cse2 .cse0 .cse3))) [2018-12-02 22:36:22,757 INFO L444 ceAbstractionStarter]: At program point L492(line 492) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~waterLevel~0 1)))) (and (or .cse0 (or .cse1 .cse2 (not (= ~waterLevel~0 2)))) (or .cse1 .cse2 .cse0 .cse3) (or (and (= processEnvironment__wrappee__lowWaterSensor_~tmp~4 1) (= ~switchedOnBeforeTS~0 ~pumpRunning~0)) (not (= 1 |old(~pumpRunning~0)|)) .cse2 .cse0 .cse3))) [2018-12-02 22:36:22,757 INFO L448 ceAbstractionStarter]: For program point L490(lines 490 498) no Hoare annotation was computed. [2018-12-02 22:36:22,757 INFO L444 ceAbstractionStarter]: At program point L488(line 488) the Hoare annotation is: (let ((.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= ~systemActive~0 1))) (.cse0 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|))) (.cse3 (not (= ~waterLevel~0 1)))) (and (or .cse0 (or .cse1 .cse2 (not (= ~waterLevel~0 2)))) (or (= ~switchedOnBeforeTS~0 ~pumpRunning~0) (not (= 1 |old(~pumpRunning~0)|)) .cse2 .cse0 .cse3) (or .cse1 .cse2 .cse0 .cse3))) [2018-12-02 22:36:22,757 INFO L448 ceAbstractionStarter]: For program point L488-1(line 488) no Hoare annotation was computed. [2018-12-02 22:36:22,757 INFO L448 ceAbstractionStarter]: For program point L486(lines 486 503) no Hoare annotation was computed. [2018-12-02 22:36:22,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 10:36:22 BoogieIcfgContainer [2018-12-02 22:36:22,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 22:36:22,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 22:36:22,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 22:36:22,765 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 22:36:22,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:36:14" (3/4) ... [2018-12-02 22:36:22,767 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 22:36:22,771 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-12-02 22:36:22,771 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-12-02 22:36:22,771 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification5_spec__1 [2018-12-02 22:36:22,771 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification5_spec__2 [2018-12-02 22:36:22,771 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification5_spec__3 [2018-12-02 22:36:22,771 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 22:36:22,771 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterLevel [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterSensorDry [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isLowWaterSensorDry [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure activatePump [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure getWaterLevel [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isHighWaterLevel [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-12-02 22:36:22,772 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-12-02 22:36:22,773 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2018-12-02 22:36:22,773 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-12-02 22:36:22,773 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-12-02 22:36:22,773 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2018-12-02 22:36:22,777 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 47 nodes and edges [2018-12-02 22:36:22,777 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-12-02 22:36:22,778 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-02 22:36:22,778 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 22:36:22,778 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 22:36:22,778 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 22:36:22,796 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((2 == waterLevel && pumpRunning == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == pumpRunning && \old(waterLevel) == waterLevel) && splverifierCounter == 0)) || !(systemActive == 1)) || (((0 == pumpRunning && 2 == waterLevel) && splverifierCounter == 0) && switchedOnBeforeTS == pumpRunning)) || !(\old(waterLevel) == 1) [2018-12-02 22:36:22,796 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) [2018-12-02 22:36:22,819 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c759167b-088a-472f-b9ea-73c2d7327ef0/bin-2019/uautomizer/witness.graphml [2018-12-02 22:36:22,819 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 22:36:22,819 INFO L168 Benchmark]: Toolchain (without parser) took 8944.16 ms. Allocated memory was 1.0 GB in the beginning and 1.5 GB in the end (delta: 518.5 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -144.1 MB). Peak memory consumption was 374.4 MB. Max. memory is 11.5 GB. [2018-12-02 22:36:22,820 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 22:36:22,820 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2018-12-02 22:36:22,820 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.54 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 22:36:22,820 INFO L168 Benchmark]: Boogie Preprocessor took 21.68 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 22:36:22,820 INFO L168 Benchmark]: RCFGBuilder took 314.41 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: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. [2018-12-02 22:36:22,820 INFO L168 Benchmark]: TraceAbstraction took 8253.44 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 381.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -32.3 MB). Peak memory consumption was 533.4 MB. Max. memory is 11.5 GB. [2018-12-02 22:36:22,820 INFO L168 Benchmark]: Witness Printer took 54.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 552.5 kB). Peak memory consumption was 552.5 kB. Max. memory is 11.5 GB. [2018-12-02 22:36:22,821 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 277.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.54 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 21.68 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 314.41 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: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8253.44 ms. Allocated memory was 1.2 GB in the beginning and 1.5 GB in the end (delta: 381.7 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -32.3 MB). Peak memory consumption was 533.4 MB. Max. memory is 11.5 GB. * Witness Printer took 54.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 552.5 kB). Peak memory consumption was 552.5 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 902]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: ((((((2 == waterLevel && pumpRunning == 1) && splverifierCounter == 0) || !(0 == \old(pumpRunning))) || ((0 == pumpRunning && \old(waterLevel) == waterLevel) && splverifierCounter == 0)) || !(systemActive == 1)) || (((0 == pumpRunning && 2 == waterLevel) && splverifierCounter == 0) && switchedOnBeforeTS == pumpRunning)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 694]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(systemActive == 1)) || !(\old(waterLevel) == 1) - InvariantResult [Line: 812]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 169 locations, 1 error locations. SAFE Result, 8.2s OverallTime, 12 OverallIterations, 9 TraceHistogramMax, 3.8s AutomataDifference, 0.0s DeadEndRemovalTime, 2.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 2548 SDtfs, 2660 SDslu, 7775 SDs, 0 SdLazy, 6012 SolverSat, 1460 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1058 GetRequests, 917 SyntacticMatches, 5 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1281occurred in iteration=11, 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, 12 MinimizatonAttempts, 348 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 69 LocationsWithAnnotation, 2130 PreInvPairs, 2201 NumberOfFragments, 1894 HoareAnnotationTreeSize, 2130 FomulaSimplifications, 9846 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 69 FomulaSimplificationsInter, 14581 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 2483 NumberOfCodeBlocks, 2483 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 2468 ConstructedInterpolants, 0 QuantifiedInterpolants, 794913 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3619 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 15 InterpolantComputations, 10 PerfectInterpolantSequences, 1760/1815 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...