./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product33_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product33_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2bf5cdbd1397f8c2609b4d66a963cb35955afadc ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 15:47:38,234 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 15:47:38,235 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 15:47:38,241 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 15:47:38,241 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 15:47:38,242 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 15:47:38,242 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 15:47:38,243 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 15:47:38,244 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 15:47:38,244 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 15:47:38,245 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 15:47:38,245 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 15:47:38,245 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 15:47:38,246 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 15:47:38,246 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 15:47:38,247 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 15:47:38,247 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 15:47:38,248 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 15:47:38,249 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 15:47:38,250 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 15:47:38,250 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 15:47:38,251 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 15:47:38,252 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 15:47:38,252 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:47:38,252 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:47:38,252 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:47:38,253 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:47:38,253 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:47:38,254 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:47:38,254 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:47:38,254 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:47:38,255 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:47:38,255 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:47:38,255 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:47:38,256 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:47:38,256 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:47:38,256 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 15:47:38,263 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:47:38,263 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:47:38,263 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 15:47:38,264 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 15:47:38,264 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 15:47:38,264 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 15:47:38,264 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 15:47:38,264 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 15:47:38,264 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 15:47:38,264 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 15:47:38,265 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 15:47:38,265 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 15:47:38,265 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 15:47:38,265 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:47:38,265 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 15:47:38,265 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 15:47:38,266 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 15:47:38,266 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:47:38,266 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 15:47:38,266 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 15:47:38,266 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 15:47:38,266 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 15:47:38,266 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 15:47:38,266 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 15:47:38,267 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:47:38,267 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 15:47:38,267 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 15:47:38,267 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 15:47:38,267 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:47:38,267 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:47:38,267 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 15:47:38,267 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 15:47:38,268 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 15:47:38,268 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 15:47:38,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 15:47:38,268 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 15:47:38,268 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf5cdbd1397f8c2609b4d66a963cb35955afadc [2018-12-08 15:47:38,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:47:38,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:47:38,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:47:38,295 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:47:38,295 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:47:38,295 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec4_product33_false-unreach-call_false-termination.cil.c [2018-12-08 15:47:38,327 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/data/347783508/f85b0339b5574786856fb8ef63e4e0b5/FLAGa42be11f2 [2018-12-08 15:47:38,718 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:47:38,719 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/sv-benchmarks/c/product-lines/minepump_spec4_product33_false-unreach-call_false-termination.cil.c [2018-12-08 15:47:38,724 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/data/347783508/f85b0339b5574786856fb8ef63e4e0b5/FLAGa42be11f2 [2018-12-08 15:47:38,732 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/data/347783508/f85b0339b5574786856fb8ef63e4e0b5 [2018-12-08 15:47:38,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:47:38,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:47:38,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:47:38,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:47:38,737 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:47:38,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:47:38" (1/1) ... [2018-12-08 15:47:38,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39cd0825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:38, skipping insertion in model container [2018-12-08 15:47:38,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:47:38" (1/1) ... [2018-12-08 15:47:38,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:47:38,763 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:47:38,906 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:47:38,913 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:47:38,989 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:47:39,002 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:47:39,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39 WrapperNode [2018-12-08 15:47:39,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:47:39,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:47:39,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:47:39,003 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:47:39,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (1/1) ... [2018-12-08 15:47:39,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (1/1) ... [2018-12-08 15:47:39,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:47:39,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:47:39,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:47:39,022 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:47:39,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (1/1) ... [2018-12-08 15:47:39,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (1/1) ... [2018-12-08 15:47:39,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (1/1) ... [2018-12-08 15:47:39,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (1/1) ... [2018-12-08 15:47:39,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (1/1) ... [2018-12-08 15:47:39,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (1/1) ... [2018-12-08 15:47:39,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (1/1) ... [2018-12-08 15:47:39,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:47:39,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:47:39,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:47:39,043 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:47:39,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 15:47:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-12-08 15:47:39,074 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-12-08 15:47:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2018-12-08 15:47:39,074 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2018-12-08 15:47:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 15:47:39,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 15:47:39,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 15:47:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-12-08 15:47:39,075 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-12-08 15:47:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-12-08 15:47:39,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-12-08 15:47:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2018-12-08 15:47:39,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2018-12-08 15:47:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2018-12-08 15:47:39,075 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2018-12-08 15:47:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-12-08 15:47:39,075 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-12-08 15:47:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2018-12-08 15:47:39,075 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2018-12-08 15:47:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2018-12-08 15:47:39,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2018-12-08 15:47:39,075 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2018-12-08 15:47:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2018-12-08 15:47:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-12-08 15:47:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-12-08 15:47:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-12-08 15:47:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-12-08 15:47:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-12-08 15:47:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-12-08 15:47:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-12-08 15:47:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-12-08 15:47:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-12-08 15:47:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-12-08 15:47:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-12-08 15:47:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-12-08 15:47:39,076 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-12-08 15:47:39,076 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-12-08 15:47:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-12-08 15:47:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-12-08 15:47:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 15:47:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 15:47:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 15:47:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-12-08 15:47:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-12-08 15:47:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-12-08 15:47:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-12-08 15:47:39,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:47:39,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:47:39,349 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:47:39,350 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-08 15:47:39,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:47:39 BoogieIcfgContainer [2018-12-08 15:47:39,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:47:39,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 15:47:39,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 15:47:39,352 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 15:47:39,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 03:47:38" (1/3) ... [2018-12-08 15:47:39,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678fb865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:47:39, skipping insertion in model container [2018-12-08 15:47:39,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:47:39" (2/3) ... [2018-12-08 15:47:39,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@678fb865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 03:47:39, skipping insertion in model container [2018-12-08 15:47:39,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:47:39" (3/3) ... [2018-12-08 15:47:39,354 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product33_false-unreach-call_false-termination.cil.c [2018-12-08 15:47:39,360 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 15:47:39,365 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 15:47:39,374 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 15:47:39,392 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 15:47:39,392 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 15:47:39,392 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 15:47:39,392 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 15:47:39,392 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 15:47:39,392 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 15:47:39,392 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 15:47:39,392 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 15:47:39,403 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states. [2018-12-08 15:47:39,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-12-08 15:47:39,407 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:47:39,408 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:47:39,409 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:47:39,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:39,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1398061837, now seen corresponding path program 1 times [2018-12-08 15:47:39,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:47:39,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:39,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:39,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:39,441 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:47:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:47:39,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:47:39,547 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:47:39,547 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 15:47:39,547 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:47:39,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-08 15:47:39,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-08 15:47:39,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-08 15:47:39,559 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 2 states. [2018-12-08 15:47:39,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:47:39,579 INFO L93 Difference]: Finished difference Result 210 states and 263 transitions. [2018-12-08 15:47:39,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-08 15:47:39,580 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-12-08 15:47:39,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:47:39,587 INFO L225 Difference]: With dead ends: 210 [2018-12-08 15:47:39,587 INFO L226 Difference]: Without dead ends: 105 [2018-12-08 15:47:39,589 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 [2018-12-08 15:47:39,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-12-08 15:47:39,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2018-12-08 15:47:39,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2018-12-08 15:47:39,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2018-12-08 15:47:39,617 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 46 [2018-12-08 15:47:39,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:47:39,617 INFO L480 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2018-12-08 15:47:39,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-08 15:47:39,618 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2018-12-08 15:47:39,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-12-08 15:47:39,619 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:47:39,619 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:47:39,619 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:47:39,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:39,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1899286830, now seen corresponding path program 1 times [2018-12-08 15:47:39,620 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:47:39,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:39,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:39,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:39,621 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:47:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:47:39,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:47:39,673 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:47:39,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-08 15:47:39,673 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:47:39,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-08 15:47:39,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 15:47:39,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 15:47:39,674 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 3 states. [2018-12-08 15:47:39,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:47:39,686 INFO L93 Difference]: Finished difference Result 159 states and 185 transitions. [2018-12-08 15:47:39,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 15:47:39,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2018-12-08 15:47:39,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:47:39,687 INFO L225 Difference]: With dead ends: 159 [2018-12-08 15:47:39,687 INFO L226 Difference]: Without dead ends: 96 [2018-12-08 15:47:39,688 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 [2018-12-08 15:47:39,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-12-08 15:47:39,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-12-08 15:47:39,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-08 15:47:39,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2018-12-08 15:47:39,694 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 47 [2018-12-08 15:47:39,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:47:39,694 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2018-12-08 15:47:39,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-08 15:47:39,694 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2018-12-08 15:47:39,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-12-08 15:47:39,695 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:47:39,695 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:47:39,695 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:47:39,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:39,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1713463770, now seen corresponding path program 1 times [2018-12-08 15:47:39,696 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:47:39,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:39,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:39,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:39,696 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:47:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:47:39,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:47:39,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:47:39,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-08 15:47:39,759 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:47:39,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-08 15:47:39,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-08 15:47:39,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-08 15:47:39,760 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 7 states. [2018-12-08 15:47:39,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:47:39,905 INFO L93 Difference]: Finished difference Result 168 states and 199 transitions. [2018-12-08 15:47:39,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 15:47:39,906 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-12-08 15:47:39,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:47:39,907 INFO L225 Difference]: With dead ends: 168 [2018-12-08 15:47:39,907 INFO L226 Difference]: Without dead ends: 96 [2018-12-08 15:47:39,908 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 [2018-12-08 15:47:39,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-12-08 15:47:39,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-12-08 15:47:39,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-12-08 15:47:39,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2018-12-08 15:47:39,917 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 51 [2018-12-08 15:47:39,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:47:39,917 INFO L480 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2018-12-08 15:47:39,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-08 15:47:39,917 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2018-12-08 15:47:39,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-12-08 15:47:39,919 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:47:39,919 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:47:39,919 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:47:39,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:39,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1090696163, now seen corresponding path program 1 times [2018-12-08 15:47:39,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:47:39,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:39,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:39,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:39,921 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:47:39,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:47:39,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:47:39,980 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:47:39,980 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-08 15:47:39,980 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:47:39,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-08 15:47:39,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-08 15:47:39,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-08 15:47:39,980 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 5 states. [2018-12-08 15:47:40,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:47:40,216 INFO L93 Difference]: Finished difference Result 251 states and 303 transitions. [2018-12-08 15:47:40,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-08 15:47:40,217 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 59 [2018-12-08 15:47:40,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:47:40,218 INFO L225 Difference]: With dead ends: 251 [2018-12-08 15:47:40,218 INFO L226 Difference]: Without dead ends: 179 [2018-12-08 15:47:40,218 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-08 15:47:40,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-12-08 15:47:40,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 161. [2018-12-08 15:47:40,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-12-08 15:47:40,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 185 transitions. [2018-12-08 15:47:40,231 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 185 transitions. Word has length 59 [2018-12-08 15:47:40,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:47:40,231 INFO L480 AbstractCegarLoop]: Abstraction has 161 states and 185 transitions. [2018-12-08 15:47:40,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-08 15:47:40,231 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 185 transitions. [2018-12-08 15:47:40,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-12-08 15:47:40,232 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:47:40,232 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:47:40,233 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:47:40,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:40,233 INFO L82 PathProgramCache]: Analyzing trace with hash 936611503, now seen corresponding path program 1 times [2018-12-08 15:47:40,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:47:40,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:40,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:40,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:40,234 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:47:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:47:40,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:47:40,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 15:47:40,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-08 15:47:40,301 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:47:40,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-08 15:47:40,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-08 15:47:40,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-12-08 15:47:40,302 INFO L87 Difference]: Start difference. First operand 161 states and 185 transitions. Second operand 10 states. [2018-12-08 15:47:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:47:40,579 INFO L93 Difference]: Finished difference Result 509 states and 644 transitions. [2018-12-08 15:47:40,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-12-08 15:47:40,579 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2018-12-08 15:47:40,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:47:40,582 INFO L225 Difference]: With dead ends: 509 [2018-12-08 15:47:40,582 INFO L226 Difference]: Without dead ends: 372 [2018-12-08 15:47:40,583 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-12-08 15:47:40,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2018-12-08 15:47:40,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 362. [2018-12-08 15:47:40,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2018-12-08 15:47:40,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 432 transitions. [2018-12-08 15:47:40,606 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 432 transitions. Word has length 73 [2018-12-08 15:47:40,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:47:40,606 INFO L480 AbstractCegarLoop]: Abstraction has 362 states and 432 transitions. [2018-12-08 15:47:40,606 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-08 15:47:40,606 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 432 transitions. [2018-12-08 15:47:40,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-12-08 15:47:40,608 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:47:40,609 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:47:40,609 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:47:40,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:40,609 INFO L82 PathProgramCache]: Analyzing trace with hash -683391407, now seen corresponding path program 1 times [2018-12-08 15:47:40,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:47:40,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:40,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:40,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:40,610 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:47:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:47:40,667 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 15:47:40,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:47:40,668 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:47:40,669 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2018-12-08 15:47:40,670 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [45], [47], [50], [57], [60], [61], [64], [66], [67], [68], [77], [81], [85], [91], [93], [99], [101], [104], [119], [120], [121], [122], [123], [125], [128], [132], [133], [134], [135], [145], [148], [152], [158], [187], [191], [192], [203], [206], [207], [208], [209], [210], [212], [213], [214], [215], [216], [217], [218], [219], [220], [222], [224], [225], [226], [227], [230], [231], [236], [237], [240], [241], [242], [243], [244], [245], [246], [247], [252], [253], [254] [2018-12-08 15:47:40,701 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:47:40,701 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:47:40,931 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:47:40,932 INFO L272 AbstractInterpreter]: Visited 54 different actions 54 times. Never merged. Never widened. Performed 1821 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1821 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-08 15:47:40,937 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:40,937 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:47:41,108 INFO L227 lantSequenceWeakener]: Weakened 64 states. On average, predicates are now at 97.32% of their original sizes. [2018-12-08 15:47:41,108 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:47:41,163 INFO L418 sIntCurrentIteration]: We unified 108 AI predicates to 108 [2018-12-08 15:47:41,164 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:47:41,164 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:47:41,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-12-08 15:47:41,164 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:47:41,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-08 15:47:41,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-08 15:47:41,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2018-12-08 15:47:41,165 INFO L87 Difference]: Start difference. First operand 362 states and 432 transitions. Second operand 13 states. [2018-12-08 15:47:42,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:47:42,259 INFO L93 Difference]: Finished difference Result 663 states and 797 transitions. [2018-12-08 15:47:42,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 15:47:42,260 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 109 [2018-12-08 15:47:42,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:47:42,261 INFO L225 Difference]: With dead ends: 663 [2018-12-08 15:47:42,261 INFO L226 Difference]: Without dead ends: 325 [2018-12-08 15:47:42,262 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 115 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2018-12-08 15:47:42,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2018-12-08 15:47:42,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2018-12-08 15:47:42,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2018-12-08 15:47:42,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 382 transitions. [2018-12-08 15:47:42,276 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 382 transitions. Word has length 109 [2018-12-08 15:47:42,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:47:42,277 INFO L480 AbstractCegarLoop]: Abstraction has 325 states and 382 transitions. [2018-12-08 15:47:42,277 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-08 15:47:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 382 transitions. [2018-12-08 15:47:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-12-08 15:47:42,278 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:47:42,279 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:47:42,279 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:47:42,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:42,279 INFO L82 PathProgramCache]: Analyzing trace with hash -194449443, now seen corresponding path program 1 times [2018-12-08 15:47:42,279 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:47:42,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:42,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:42,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:42,280 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:47:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:47:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-12-08 15:47:42,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:47:42,327 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:47:42,327 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 118 with the following transitions: [2018-12-08 15:47:42,327 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [45], [47], [50], [57], [60], [61], [64], [66], [67], [68], [77], [81], [85], [88], [93], [99], [101], [104], [119], [120], [121], [122], [123], [125], [128], [132], [133], [134], [135], [145], [148], [152], [158], [187], [191], [192], [198], [202], [203], [206], [207], [208], [209], [210], [212], [213], [214], [215], [216], [217], [218], [219], [220], [222], [224], [225], [226], [227], [230], [231], [232], [233], [236], [237], [240], [241], [242], [243], [244], [245], [246], [247], [252], [253], [254] [2018-12-08 15:47:42,329 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:47:42,329 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:47:42,403 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:47:42,404 INFO L272 AbstractInterpreter]: Visited 49 different actions 49 times. Never merged. Never widened. Performed 1923 root evaluator evaluations with a maximum evaluation depth of 3. Performed 1923 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-08 15:47:42,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:42,405 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:47:42,511 INFO L227 lantSequenceWeakener]: Weakened 63 states. On average, predicates are now at 97.3% of their original sizes. [2018-12-08 15:47:42,511 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:47:42,544 INFO L418 sIntCurrentIteration]: We unified 116 AI predicates to 116 [2018-12-08 15:47:42,544 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:47:42,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:47:42,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-12-08 15:47:42,545 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:47:42,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-08 15:47:42,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-08 15:47:42,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 15:47:42,545 INFO L87 Difference]: Start difference. First operand 325 states and 382 transitions. Second operand 8 states. [2018-12-08 15:47:43,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:47:43,132 INFO L93 Difference]: Finished difference Result 679 states and 831 transitions. [2018-12-08 15:47:43,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-08 15:47:43,132 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2018-12-08 15:47:43,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:47:43,134 INFO L225 Difference]: With dead ends: 679 [2018-12-08 15:47:43,134 INFO L226 Difference]: Without dead ends: 430 [2018-12-08 15:47:43,134 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 116 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-08 15:47:43,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2018-12-08 15:47:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 418. [2018-12-08 15:47:43,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2018-12-08 15:47:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 492 transitions. [2018-12-08 15:47:43,149 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 492 transitions. Word has length 117 [2018-12-08 15:47:43,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:47:43,149 INFO L480 AbstractCegarLoop]: Abstraction has 418 states and 492 transitions. [2018-12-08 15:47:43,149 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-08 15:47:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 492 transitions. [2018-12-08 15:47:43,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-12-08 15:47:43,150 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:47:43,150 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:47:43,150 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:47:43,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:43,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1884334824, now seen corresponding path program 1 times [2018-12-08 15:47:43,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:47:43,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:43,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:43,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:43,152 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:47:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:47:43,194 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 15:47:43,194 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:47:43,194 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:47:43,194 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-12-08 15:47:43,195 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [45], [47], [50], [57], [60], [61], [65], [66], [67], [68], [77], [81], [85], [88], [91], [93], [99], [101], [104], [119], [120], [121], [122], [123], [125], [128], [132], [133], [134], [135], [145], [148], [152], [158], [187], [191], [192], [198], [202], [203], [206], [207], [208], [209], [210], [212], [213], [214], [215], [216], [217], [218], [219], [220], [222], [224], [225], [226], [227], [230], [231], [232], [233], [236], [237], [240], [241], [242], [243], [244], [245], [246], [247], [252], [253], [254] [2018-12-08 15:47:43,196 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:47:43,197 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:47:43,356 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-08 15:47:43,356 INFO L272 AbstractInterpreter]: Visited 54 different actions 71 times. Merged at 5 different actions 5 times. Never widened. Performed 3986 root evaluator evaluations with a maximum evaluation depth of 3. Performed 3986 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 132 variables. [2018-12-08 15:47:43,359 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:43,359 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-08 15:47:43,476 INFO L227 lantSequenceWeakener]: Weakened 63 states. On average, predicates are now at 97.3% of their original sizes. [2018-12-08 15:47:43,476 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-08 15:47:43,515 INFO L418 sIntCurrentIteration]: We unified 112 AI predicates to 112 [2018-12-08 15:47:43,515 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-08 15:47:43,515 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-08 15:47:43,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [5] total 15 [2018-12-08 15:47:43,515 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-08 15:47:43,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-08 15:47:43,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-08 15:47:43,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-12-08 15:47:43,516 INFO L87 Difference]: Start difference. First operand 418 states and 492 transitions. Second operand 12 states. [2018-12-08 15:47:44,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:47:44,428 INFO L93 Difference]: Finished difference Result 781 states and 947 transitions. [2018-12-08 15:47:44,428 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-08 15:47:44,428 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 113 [2018-12-08 15:47:44,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:47:44,430 INFO L225 Difference]: With dead ends: 781 [2018-12-08 15:47:44,430 INFO L226 Difference]: Without dead ends: 439 [2018-12-08 15:47:44,431 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 116 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-12-08 15:47:44,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2018-12-08 15:47:44,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 418. [2018-12-08 15:47:44,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2018-12-08 15:47:44,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 491 transitions. [2018-12-08 15:47:44,445 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 491 transitions. Word has length 113 [2018-12-08 15:47:44,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:47:44,445 INFO L480 AbstractCegarLoop]: Abstraction has 418 states and 491 transitions. [2018-12-08 15:47:44,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-08 15:47:44,445 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 491 transitions. [2018-12-08 15:47:44,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-12-08 15:47:44,446 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:47:44,446 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 15:47:44,447 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:47:44,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:44,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1993235866, now seen corresponding path program 1 times [2018-12-08 15:47:44,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:47:44,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:44,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:44,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:44,448 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:47:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:47:44,527 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 15:47:44,527 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:47:44,527 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-08 15:47:44,527 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 114 with the following transitions: [2018-12-08 15:47:44,527 INFO L205 CegarAbsIntRunner]: [0], [1], [2], [3], [5], [8], [10], [13], [19], [21], [22], [26], [29], [37], [38], [39], [42], [45], [47], [50], [57], [60], [61], [65], [66], [67], [68], [77], [81], [85], [88], [91], [93], [99], [101], [104], [119], [120], [121], [122], [123], [125], [130], [132], [133], [134], [135], [145], [148], [152], [158], [187], [191], [192], [198], [202], [203], [206], [207], [208], [209], [210], [212], [213], [214], [215], [216], [217], [218], [219], [220], [222], [224], [225], [226], [227], [230], [231], [232], [233], [236], [237], [240], [241], [242], [243], [244], [245], [246], [247], [252], [253], [254] [2018-12-08 15:47:44,529 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-08 15:47:44,529 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-08 15:47:45,108 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-08 15:47:45,108 INFO L272 AbstractInterpreter]: Visited 93 different actions 399 times. Merged at 18 different actions 51 times. Never widened. Performed 17092 root evaluator evaluations with a maximum evaluation depth of 3. Performed 17092 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 10 fixpoints after 5 different actions. Largest state had 132 variables. [2018-12-08 15:47:45,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:45,111 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-08 15:47:45,111 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-08 15:47:45,111 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-08 15:47:45,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:45,118 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-08 15:47:45,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:47:45,193 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 15:47:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:47:45,286 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-08 15:47:45,435 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-12-08 15:47:45,451 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-08 15:47:45,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2018-12-08 15:47:45,451 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-08 15:47:45,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-12-08 15:47:45,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-12-08 15:47:45,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-12-08 15:47:45,452 INFO L87 Difference]: Start difference. First operand 418 states and 491 transitions. Second operand 15 states. [2018-12-08 15:47:46,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 15:47:46,133 INFO L93 Difference]: Finished difference Result 874 states and 1161 transitions. [2018-12-08 15:47:46,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-12-08 15:47:46,134 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 113 [2018-12-08 15:47:46,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-08 15:47:46,137 INFO L225 Difference]: With dead ends: 874 [2018-12-08 15:47:46,137 INFO L226 Difference]: Without dead ends: 625 [2018-12-08 15:47:46,138 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 218 SyntacticMatches, 6 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=243, Invalid=687, Unknown=0, NotChecked=0, Total=930 [2018-12-08 15:47:46,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2018-12-08 15:47:46,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 522. [2018-12-08 15:47:46,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 522 states. [2018-12-08 15:47:46,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 623 transitions. [2018-12-08 15:47:46,172 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 623 transitions. Word has length 113 [2018-12-08 15:47:46,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-08 15:47:46,172 INFO L480 AbstractCegarLoop]: Abstraction has 522 states and 623 transitions. [2018-12-08 15:47:46,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-12-08 15:47:46,173 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 623 transitions. [2018-12-08 15:47:46,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-12-08 15:47:46,174 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 15:47:46,175 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-12-08 15:47:46,175 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 15:47:46,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:47:46,175 INFO L82 PathProgramCache]: Analyzing trace with hash -883595787, now seen corresponding path program 2 times [2018-12-08 15:47:46,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 15:47:46,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:46,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 15:47:46,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 15:47:46,176 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 15:47:46,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:47:46,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 15:47:46,314 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 15:47:46,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 03:47:46 BoogieIcfgContainer [2018-12-08 15:47:46,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 15:47:46,413 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:47:46,413 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:47:46,414 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:47:46,414 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:47:39" (3/4) ... [2018-12-08 15:47:46,415 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 15:47:46,516 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_087e5dae-a477-47c4-9dd4-9e4bc52c312d/bin-2019/utaipan/witness.graphml [2018-12-08 15:47:46,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:47:46,517 INFO L168 Benchmark]: Toolchain (without parser) took 7782.67 ms. Allocated memory was 1.0 GB in the beginning and 1.6 GB in the end (delta: 536.9 MB). Free memory was 950.6 MB in the beginning and 1.4 GB in the end (delta: -448.3 MB). Peak memory consumption was 88.6 MB. Max. memory is 11.5 GB. [2018-12-08 15:47:46,518 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-12-08 15:47:46,518 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-08 15:47:46,518 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.76 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. [2018-12-08 15:47:46,518 INFO L168 Benchmark]: Boogie Preprocessor took 20.79 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. [2018-12-08 15:47:46,518 INFO L168 Benchmark]: RCFGBuilder took 307.11 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: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. [2018-12-08 15:47:46,518 INFO L168 Benchmark]: TraceAbstraction took 7062.78 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 394.8 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -365.7 MB). Peak memory consumption was 553.7 MB. Max. memory is 11.5 GB. [2018-12-08 15:47:46,519 INFO L168 Benchmark]: Witness Printer took 103.02 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. [2018-12-08 15:47:46,519 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 267.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -175.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.76 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 20.79 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 307.11 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: 49.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7062.78 ms. Allocated memory was 1.2 GB in the beginning and 1.6 GB in the end (delta: 394.8 MB). Free memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: -365.7 MB). Peak memory consumption was 553.7 MB. Max. memory is 11.5 GB. * Witness Printer took 103.02 ms. Allocated memory is still 1.6 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 869]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L406] int cleanupTimeShifts = 4; [L615] int waterLevel = 1; [L616] int methaneLevelCritical = 0; [L712] int pumpRunning = 0; [L713] int systemActive = 1; [L487] int retValue_acc ; [L488] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L492] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L493] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L494] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L494] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L494] tmp = valid_product() [L496] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L498] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L499] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L478] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L546] int splverifierCounter ; [L547] int tmp ; [L548] int tmp___0 ; [L549] int tmp___1 ; [L550] int tmp___2 ; [L553] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L567] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L633] COND TRUE waterLevel < 2 [L634] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L567] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L720] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L752] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L846] int retValue_acc ; [L847] int tmp ; [L848] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L695] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L698] COND FALSE !(waterLevel < 2) [L702] retValue_acc = 0 [L703] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L852] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L852] tmp = isHighWaterSensorDry() [L854] COND FALSE !(\read(tmp)) [L857] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L859] retValue_acc = tmp___0 [L860] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L754] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L754] tmp = isHighWaterLevel() [L756] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L758] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L777] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L758] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L735] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L598] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L720] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L722] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L722] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L752] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L767] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L880] tmp = getWaterLevel() [L882] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L735] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L598] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L555] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L557] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L563] tmp = __VERIFIER_nondet_int() [L565] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L573] tmp___0 = __VERIFIER_nondet_int() [L575] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L583] tmp___2 = __VERIFIER_nondet_int() [L585] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L598] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L720] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L722] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE waterLevel > 0 [L622] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L722] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L727] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L729] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L749] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L752] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L767] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L729] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L735] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L875] int tmp ; [L876] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L686] int retValue_acc ; [L689] retValue_acc = waterLevel [L690] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L880] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L880] tmp = getWaterLevel() [L882] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L884] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L801] int retValue_acc ; [L804] retValue_acc = pumpRunning [L805] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L884] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L884] tmp___0 = isPumpRunning() [L886] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L888] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L869] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 23 procedures, 118 locations, 1 error locations. UNSAFE Result, 7.0s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 4.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1165 SDtfs, 1515 SDslu, 3231 SDs, 0 SdLazy, 2151 SolverSat, 582 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 651 GetRequests, 547 SyntacticMatches, 6 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=522occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 4 AbstIntIterations, 3 AbstIntStrong, 0.9978678839018691 AbsIntWeakeningRatio, 0.9642857142857143 AbsIntAvgWeakeningVarsNumRemoved, 54.51190476190476 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 164 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 989 NumberOfCodeBlocks, 989 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 943 ConstructedInterpolants, 0 QuantifiedInterpolants, 144065 SizeOfPredicates, 8 NumberOfNonLiveVariables, 759 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 126/148 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...