./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product03_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product03_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/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 76dc507b12cb3a2bccac05c4e284ee3cd573db6d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 21:10:51,036 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 21:10:51,038 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 21:10:51,048 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 21:10:51,048 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 21:10:51,049 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 21:10:51,050 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 21:10:51,052 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 21:10:51,054 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 21:10:51,054 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 21:10:51,056 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 21:10:51,056 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 21:10:51,057 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 21:10:51,058 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 21:10:51,059 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 21:10:51,060 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 21:10:51,061 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 21:10:51,062 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 21:10:51,064 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 21:10:51,066 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 21:10:51,067 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 21:10:51,068 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 21:10:51,070 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 21:10:51,071 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 21:10:51,072 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 21:10:51,073 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 21:10:51,074 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 21:10:51,075 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 21:10:51,076 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 21:10:51,077 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 21:10:51,077 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 21:10:51,078 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 21:10:51,078 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 21:10:51,078 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 21:10:51,079 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 21:10:51,080 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 21:10:51,080 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 21:10:51,092 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 21:10:51,093 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 21:10:51,093 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 21:10:51,094 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 21:10:51,094 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 21:10:51,094 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 21:10:51,094 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 21:10:51,094 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 21:10:51,094 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 21:10:51,095 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 21:10:51,095 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 21:10:51,095 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 21:10:51,096 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 21:10:51,096 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 21:10:51,096 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 21:10:51,096 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 21:10:51,096 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 21:10:51,096 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 21:10:51,097 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 21:10:51,097 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 21:10:51,097 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 21:10:51,097 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 21:10:51,097 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 21:10:51,097 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 21:10:51,098 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 21:10:51,098 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 21:10:51,098 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 21:10:51,098 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 21:10:51,098 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 21:10:51,098 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 21:10:51,099 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 21:10:51,099 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 21:10:51,099 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 21:10:51,099 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 21:10:51,099 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_120fed2d-1565-4148-af2a-cf00025b9d79/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 -> 76dc507b12cb3a2bccac05c4e284ee3cd573db6d [2018-10-26 21:10:51,127 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 21:10:51,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 21:10:51,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 21:10:51,142 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 21:10:51,143 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 21:10:51,144 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/../../sv-benchmarks/c/product-lines/minepump_spec1_product03_true-unreach-call_false-termination.cil.c [2018-10-26 21:10:51,193 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/data/5264d5671/dcb57b1894a9489c9809e18f52fc1755/FLAG875b8444a [2018-10-26 21:10:51,635 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 21:10:51,635 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/sv-benchmarks/c/product-lines/minepump_spec1_product03_true-unreach-call_false-termination.cil.c [2018-10-26 21:10:51,647 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/data/5264d5671/dcb57b1894a9489c9809e18f52fc1755/FLAG875b8444a [2018-10-26 21:10:51,660 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/data/5264d5671/dcb57b1894a9489c9809e18f52fc1755 [2018-10-26 21:10:51,664 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 21:10:51,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 21:10:51,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 21:10:51,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 21:10:51,670 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 21:10:51,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:10:51" (1/1) ... [2018-10-26 21:10:51,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c90e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:51, skipping insertion in model container [2018-10-26 21:10:51,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 09:10:51" (1/1) ... [2018-10-26 21:10:51,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 21:10:51,726 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 21:10:51,961 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:10:51,970 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 21:10:52,042 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 21:10:52,080 INFO L193 MainTranslator]: Completed translation [2018-10-26 21:10:52,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52 WrapperNode [2018-10-26 21:10:52,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 21:10:52,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 21:10:52,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 21:10:52,082 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 21:10:52,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (1/1) ... [2018-10-26 21:10:52,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (1/1) ... [2018-10-26 21:10:52,208 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 21:10:52,208 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 21:10:52,208 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 21:10:52,208 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 21:10:52,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (1/1) ... [2018-10-26 21:10:52,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (1/1) ... [2018-10-26 21:10:52,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (1/1) ... [2018-10-26 21:10:52,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (1/1) ... [2018-10-26 21:10:52,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (1/1) ... [2018-10-26 21:10:52,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (1/1) ... [2018-10-26 21:10:52,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (1/1) ... [2018-10-26 21:10:52,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 21:10:52,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 21:10:52,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 21:10:52,263 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 21:10:52,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/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 [2018-10-26 21:10:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2018-10-26 21:10:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2018-10-26 21:10:52,323 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2018-10-26 21:10:52,323 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2018-10-26 21:10:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 21:10:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 21:10:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2018-10-26 21:10:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2018-10-26 21:10:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2018-10-26 21:10:52,324 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2018-10-26 21:10:52,324 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2018-10-26 21:10:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2018-10-26 21:10:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2018-10-26 21:10:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2018-10-26 21:10:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2018-10-26 21:10:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2018-10-26 21:10:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2018-10-26 21:10:52,325 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2018-10-26 21:10:52,325 INFO L130 BoogieDeclarations]: Found specification of procedure test [2018-10-26 21:10:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2018-10-26 21:10:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 21:10:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 21:10:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2018-10-26 21:10:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2018-10-26 21:10:52,326 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2018-10-26 21:10:52,326 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2018-10-26 21:10:52,327 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2018-10-26 21:10:52,327 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2018-10-26 21:10:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2018-10-26 21:10:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2018-10-26 21:10:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2018-10-26 21:10:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2018-10-26 21:10:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 21:10:52,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 21:10:52,330 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2018-10-26 21:10:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2018-10-26 21:10:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2018-10-26 21:10:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2018-10-26 21:10:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2018-10-26 21:10:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2018-10-26 21:10:52,331 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2018-10-26 21:10:52,331 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2018-10-26 21:10:53,456 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 21:10:53,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:10:53 BoogieIcfgContainer [2018-10-26 21:10:53,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 21:10:53,457 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 21:10:53,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 21:10:53,460 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 21:10:53,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 09:10:51" (1/3) ... [2018-10-26 21:10:53,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cceeb5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:10:53, skipping insertion in model container [2018-10-26 21:10:53,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 09:10:52" (2/3) ... [2018-10-26 21:10:53,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cceeb5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 09:10:53, skipping insertion in model container [2018-10-26 21:10:53,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:10:53" (3/3) ... [2018-10-26 21:10:53,463 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product03_true-unreach-call_false-termination.cil.c [2018-10-26 21:10:53,472 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 21:10:53,479 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 21:10:53,493 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 21:10:53,529 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 21:10:53,530 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 21:10:53,530 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 21:10:53,530 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 21:10:53,530 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 21:10:53,531 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 21:10:53,531 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 21:10:53,531 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 21:10:53,546 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2018-10-26 21:10:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-26 21:10:53,553 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:10:53,554 INFO L375 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] [2018-10-26 21:10:53,556 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:10:53,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:10:53,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1085801726, now seen corresponding path program 1 times [2018-10-26 21:10:53,563 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:10:53,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:10:53,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:10:53,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:10:53,601 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:10:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:10:53,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:10:53,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:10:53,899 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 21:10:53,899 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:10:53,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 21:10:53,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 21:10:53,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 21:10:53,920 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 2 states. [2018-10-26 21:10:53,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:10:53,947 INFO L93 Difference]: Finished difference Result 184 states and 229 transitions. [2018-10-26 21:10:53,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 21:10:53,948 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2018-10-26 21:10:53,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:10:53,961 INFO L225 Difference]: With dead ends: 184 [2018-10-26 21:10:53,961 INFO L226 Difference]: Without dead ends: 92 [2018-10-26 21:10:53,965 INFO L605 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 [2018-10-26 21:10:53,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2018-10-26 21:10:54,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2018-10-26 21:10:54,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2018-10-26 21:10:54,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 106 transitions. [2018-10-26 21:10:54,020 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 106 transitions. Word has length 46 [2018-10-26 21:10:54,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:10:54,022 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 106 transitions. [2018-10-26 21:10:54,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 21:10:54,022 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 106 transitions. [2018-10-26 21:10:54,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-10-26 21:10:54,026 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:10:54,026 INFO L375 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] [2018-10-26 21:10:54,026 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:10:54,027 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:10:54,027 INFO L82 PathProgramCache]: Analyzing trace with hash -245017847, now seen corresponding path program 1 times [2018-10-26 21:10:54,027 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:10:54,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:10:54,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:10:54,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:10:54,030 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:10:54,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:10:54,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:10:54,219 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:10:54,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-26 21:10:54,219 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:10:54,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 21:10:54,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 21:10:54,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-26 21:10:54,222 INFO L87 Difference]: Start difference. First operand 92 states and 106 transitions. Second operand 3 states. [2018-10-26 21:10:54,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:10:54,266 INFO L93 Difference]: Finished difference Result 122 states and 139 transitions. [2018-10-26 21:10:54,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 21:10:54,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2018-10-26 21:10:54,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:10:54,271 INFO L225 Difference]: With dead ends: 122 [2018-10-26 21:10:54,271 INFO L226 Difference]: Without dead ends: 82 [2018-10-26 21:10:54,272 INFO L605 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 [2018-10-26 21:10:54,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2018-10-26 21:10:54,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2018-10-26 21:10:54,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2018-10-26 21:10:54,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2018-10-26 21:10:54,300 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 48 [2018-10-26 21:10:54,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:10:54,301 INFO L481 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2018-10-26 21:10:54,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 21:10:54,301 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2018-10-26 21:10:54,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-26 21:10:54,303 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:10:54,303 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 21:10:54,303 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:10:54,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:10:54,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1060333770, now seen corresponding path program 1 times [2018-10-26 21:10:54,304 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:10:54,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:10:54,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:10:54,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:10:54,305 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:10:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:10:54,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:10:54,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:10:54,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-26 21:10:54,868 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:10:54,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-26 21:10:54,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-26 21:10:54,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-26 21:10:54,869 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand 7 states. [2018-10-26 21:10:55,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:10:55,383 INFO L93 Difference]: Finished difference Result 249 states and 298 transitions. [2018-10-26 21:10:55,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-26 21:10:55,385 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-10-26 21:10:55,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:10:55,389 INFO L225 Difference]: With dead ends: 249 [2018-10-26 21:10:55,390 INFO L226 Difference]: Without dead ends: 191 [2018-10-26 21:10:55,390 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-26 21:10:55,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2018-10-26 21:10:55,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 171. [2018-10-26 21:10:55,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-10-26 21:10:55,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 203 transitions. [2018-10-26 21:10:55,413 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 203 transitions. Word has length 52 [2018-10-26 21:10:55,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:10:55,413 INFO L481 AbstractCegarLoop]: Abstraction has 171 states and 203 transitions. [2018-10-26 21:10:55,413 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-26 21:10:55,413 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 203 transitions. [2018-10-26 21:10:55,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-10-26 21:10:55,415 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:10:55,415 INFO L375 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] [2018-10-26 21:10:55,415 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:10:55,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:10:55,416 INFO L82 PathProgramCache]: Analyzing trace with hash 63320982, now seen corresponding path program 1 times [2018-10-26 21:10:55,416 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:10:55,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:10:55,417 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:10:55,417 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:10:55,417 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:10:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:10:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:10:55,797 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:10:55,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 21:10:55,798 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:10:55,798 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 21:10:55,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 21:10:55,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:10:55,799 INFO L87 Difference]: Start difference. First operand 171 states and 203 transitions. Second operand 6 states. [2018-10-26 21:10:56,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:10:56,257 INFO L93 Difference]: Finished difference Result 450 states and 557 transitions. [2018-10-26 21:10:56,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-26 21:10:56,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2018-10-26 21:10:56,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:10:56,261 INFO L225 Difference]: With dead ends: 450 [2018-10-26 21:10:56,261 INFO L226 Difference]: Without dead ends: 303 [2018-10-26 21:10:56,263 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-26 21:10:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-10-26 21:10:56,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 297. [2018-10-26 21:10:56,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2018-10-26 21:10:56,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 356 transitions. [2018-10-26 21:10:56,321 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 356 transitions. Word has length 55 [2018-10-26 21:10:56,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:10:56,322 INFO L481 AbstractCegarLoop]: Abstraction has 297 states and 356 transitions. [2018-10-26 21:10:56,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 21:10:56,322 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 356 transitions. [2018-10-26 21:10:56,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-10-26 21:10:56,324 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 21:10:56,324 INFO L375 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] [2018-10-26 21:10:56,324 INFO L424 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 21:10:56,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 21:10:56,325 INFO L82 PathProgramCache]: Analyzing trace with hash 310961778, now seen corresponding path program 1 times [2018-10-26 21:10:56,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 21:10:56,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:10:56,326 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 21:10:56,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 21:10:56,326 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 21:10:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 21:10:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 21:10:56,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 21:10:56,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-26 21:10:56,537 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 21:10:56,537 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-26 21:10:56,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-26 21:10:56,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-26 21:10:56,538 INFO L87 Difference]: Start difference. First operand 297 states and 356 transitions. Second operand 6 states. [2018-10-26 21:10:56,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 21:10:56,953 INFO L93 Difference]: Finished difference Result 541 states and 664 transitions. [2018-10-26 21:10:56,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-26 21:10:56,955 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2018-10-26 21:10:56,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 21:10:56,956 INFO L225 Difference]: With dead ends: 541 [2018-10-26 21:10:56,956 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 21:10:56,958 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-26 21:10:56,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 21:10:56,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 21:10:56,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 21:10:56,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 21:10:56,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2018-10-26 21:10:56,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 21:10:56,964 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 21:10:56,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-26 21:10:56,964 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 21:10:56,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 21:10:56,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 21:10:57,337 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-26 21:10:57,663 WARN L179 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 8 [2018-10-26 21:10:58,004 WARN L179 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-26 21:10:58,203 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-26 21:10:58,424 WARN L179 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-10-26 21:10:58,668 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-26 21:10:58,716 INFO L428 ceAbstractionStarter]: At program point deactivatePumpENTRY(lines 200 207) the Hoare annotation is: true [2018-10-26 21:10:58,716 INFO L425 ceAbstractionStarter]: For program point deactivatePumpEXIT(lines 200 207) no Hoare annotation was computed. [2018-10-26 21:10:58,717 INFO L425 ceAbstractionStarter]: For program point deactivatePumpFINAL(lines 200 207) no Hoare annotation was computed. [2018-10-26 21:10:58,717 INFO L425 ceAbstractionStarter]: For program point processEnvironmentEXIT(lines 185 191) no Hoare annotation was computed. [2018-10-26 21:10:58,717 INFO L428 ceAbstractionStarter]: At program point processEnvironmentFINAL(lines 185 191) the Hoare annotation is: true [2018-10-26 21:10:58,717 INFO L428 ceAbstractionStarter]: At program point select_helpersFINAL(lines 133 139) the Hoare annotation is: true [2018-10-26 21:10:58,717 INFO L425 ceAbstractionStarter]: For program point select_helpersEXIT(lines 133 139) no Hoare annotation was computed. [2018-10-26 21:10:58,717 INFO L425 ceAbstractionStarter]: For program point valid_productEXIT(lines 140 148) no Hoare annotation was computed. [2018-10-26 21:10:58,717 INFO L428 ceAbstractionStarter]: At program point valid_productENTRY(lines 140 148) the Hoare annotation is: true [2018-10-26 21:10:58,717 INFO L425 ceAbstractionStarter]: For program point valid_productFINAL(lines 140 148) no Hoare annotation was computed. [2018-10-26 21:10:58,718 INFO L421 ceAbstractionStarter]: At program point testENTRY(lines 45 110) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= ~systemActive~0 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,718 INFO L421 ceAbstractionStarter]: At program point L93(line 93) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= test_~splverifierCounter~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,718 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 97) no Hoare annotation was computed. [2018-10-26 21:10:58,718 INFO L421 ceAbstractionStarter]: At program point L91-1(lines 85 98) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= test_~splverifierCounter~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,718 INFO L425 ceAbstractionStarter]: For program point L56(lines 55 102) no Hoare annotation was computed. [2018-10-26 21:10:58,718 INFO L425 ceAbstractionStarter]: For program point testFINAL(lines 45 110) no Hoare annotation was computed. [2018-10-26 21:10:58,718 INFO L425 ceAbstractionStarter]: For program point L85(lines 85 98) no Hoare annotation was computed. [2018-10-26 21:10:58,718 INFO L421 ceAbstractionStarter]: At program point L77(line 77) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= test_~splverifierCounter~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,719 INFO L425 ceAbstractionStarter]: For program point L75(lines 75 81) no Hoare annotation was computed. [2018-10-26 21:10:58,719 INFO L425 ceAbstractionStarter]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2018-10-26 21:10:58,723 INFO L421 ceAbstractionStarter]: At program point L100(lines 55 102) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= test_~splverifierCounter~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,723 INFO L421 ceAbstractionStarter]: At program point L67(line 67) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= test_~splverifierCounter~0 0)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,723 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 71) no Hoare annotation was computed. [2018-10-26 21:10:58,723 INFO L425 ceAbstractionStarter]: For program point L65-1(lines 65 71) no Hoare annotation was computed. [2018-10-26 21:10:58,723 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 61) no Hoare annotation was computed. [2018-10-26 21:10:58,723 INFO L425 ceAbstractionStarter]: For program point L55-1(lines 55 102) no Hoare annotation was computed. [2018-10-26 21:10:58,723 INFO L421 ceAbstractionStarter]: At program point L103(lines 54 104) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,724 INFO L425 ceAbstractionStarter]: For program point testEXIT(lines 45 110) no Hoare annotation was computed. [2018-10-26 21:10:58,724 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 433 455) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= ~systemActive~0 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,724 INFO L421 ceAbstractionStarter]: At program point L445(line 445) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= main_~tmp~1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= ~systemActive~0 1))) [2018-10-26 21:10:58,724 INFO L421 ceAbstractionStarter]: At program point L445-1(line 445) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= main_~tmp~1 ~systemActive~0) (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= ~systemActive~0 1))) [2018-10-26 21:10:58,724 INFO L425 ceAbstractionStarter]: For program point L443(lines 443 450) no Hoare annotation was computed. [2018-10-26 21:10:58,724 INFO L425 ceAbstractionStarter]: For program point L443-1(lines 443 450) no Hoare annotation was computed. [2018-10-26 21:10:58,724 INFO L425 ceAbstractionStarter]: For program point L441(line 441) no Hoare annotation was computed. [2018-10-26 21:10:58,724 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 433 455) no Hoare annotation was computed. [2018-10-26 21:10:58,725 INFO L421 ceAbstractionStarter]: At program point L440(line 440) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= ~systemActive~0 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,725 INFO L421 ceAbstractionStarter]: At program point L439(line 439) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= ~systemActive~0 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,725 INFO L421 ceAbstractionStarter]: At program point L439-1(line 439) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= ~systemActive~0 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,725 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 433 455) no Hoare annotation was computed. [2018-10-26 21:10:58,725 INFO L425 ceAbstractionStarter]: For program point stopSystemEXIT(lines 264 278) no Hoare annotation was computed. [2018-10-26 21:10:58,725 INFO L421 ceAbstractionStarter]: At program point L270(line 270) the Hoare annotation is: (not (= 0 |old(~pumpRunning~0)|)) [2018-10-26 21:10:58,725 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 274) no Hoare annotation was computed. [2018-10-26 21:10:58,725 INFO L421 ceAbstractionStarter]: At program point stopSystemENTRY(lines 264 278) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2018-10-26 21:10:58,725 INFO L425 ceAbstractionStarter]: For program point stopSystemFINAL(lines 264 278) no Hoare annotation was computed. [2018-10-26 21:10:58,725 INFO L425 ceAbstractionStarter]: For program point isPumpRunningEXIT(lines 219 227) no Hoare annotation was computed. [2018-10-26 21:10:58,726 INFO L428 ceAbstractionStarter]: At program point isPumpRunningENTRY(lines 219 227) the Hoare annotation is: true [2018-10-26 21:10:58,726 INFO L425 ceAbstractionStarter]: For program point isPumpRunningFINAL(lines 219 227) no Hoare annotation was computed. [2018-10-26 21:10:58,726 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:10:58,726 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:10:58,726 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:10:58,726 INFO L421 ceAbstractionStarter]: At program point changeMethaneLevelENTRY(lines 307 318) the Hoare annotation is: (or (= 0 ~methaneLevelCritical~0) (not (= 0 ~pumpRunning~0)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,726 INFO L425 ceAbstractionStarter]: For program point L311-1(lines 307 318) no Hoare annotation was computed. [2018-10-26 21:10:58,726 INFO L425 ceAbstractionStarter]: For program point changeMethaneLevelEXIT(lines 307 318) no Hoare annotation was computed. [2018-10-26 21:10:58,726 INFO L428 ceAbstractionStarter]: At program point timeShiftENTRY(lines 161 184) the Hoare annotation is: true [2018-10-26 21:10:58,726 INFO L421 ceAbstractionStarter]: At program point L174(line 174) the Hoare annotation is: (or (not (= ~systemActive~0 0)) (not (= 0 ~pumpRunning~0))) [2018-10-26 21:10:58,727 INFO L428 ceAbstractionStarter]: At program point L172(lines 172 178) the Hoare annotation is: true [2018-10-26 21:10:58,727 INFO L425 ceAbstractionStarter]: For program point timeShiftEXIT(lines 161 184) no Hoare annotation was computed. [2018-10-26 21:10:58,734 INFO L421 ceAbstractionStarter]: At program point L167(line 167) the Hoare annotation is: (not (= 0 ~pumpRunning~0)) [2018-10-26 21:10:58,734 INFO L425 ceAbstractionStarter]: For program point timeShiftFINAL(lines 161 184) no Hoare annotation was computed. [2018-10-26 21:10:58,734 INFO L425 ceAbstractionStarter]: For program point L165(lines 164 183) no Hoare annotation was computed. [2018-10-26 21:10:58,734 INFO L425 ceAbstractionStarter]: For program point cleanupEXIT(lines 362 391) no Hoare annotation was computed. [2018-10-26 21:10:58,734 INFO L425 ceAbstractionStarter]: For program point L376(lines 376 380) no Hoare annotation was computed. [2018-10-26 21:10:58,734 INFO L428 ceAbstractionStarter]: At program point L376-1(lines 376 380) the Hoare annotation is: true [2018-10-26 21:10:58,735 INFO L425 ceAbstractionStarter]: For program point L372-1(lines 372 386) no Hoare annotation was computed. [2018-10-26 21:10:58,735 INFO L428 ceAbstractionStarter]: At program point L372-3(lines 372 386) the Hoare annotation is: true [2018-10-26 21:10:58,735 INFO L428 ceAbstractionStarter]: At program point L368(line 368) the Hoare annotation is: true [2018-10-26 21:10:58,735 INFO L425 ceAbstractionStarter]: For program point L368-1(line 368) no Hoare annotation was computed. [2018-10-26 21:10:58,735 INFO L428 ceAbstractionStarter]: At program point L387(lines 362 391) the Hoare annotation is: true [2018-10-26 21:10:58,735 INFO L425 ceAbstractionStarter]: For program point L383(line 383) no Hoare annotation was computed. [2018-10-26 21:10:58,735 INFO L428 ceAbstractionStarter]: At program point cleanupENTRY(lines 362 391) the Hoare annotation is: true [2018-10-26 21:10:58,735 INFO L425 ceAbstractionStarter]: For program point L373(line 373) no Hoare annotation was computed. [2018-10-26 21:10:58,735 INFO L428 ceAbstractionStarter]: At program point isMethaneLevelCriticalENTRY(lines 319 327) the Hoare annotation is: true [2018-10-26 21:10:58,735 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalFINAL(lines 319 327) no Hoare annotation was computed. [2018-10-26 21:10:58,736 INFO L425 ceAbstractionStarter]: For program point isMethaneLevelCriticalEXIT(lines 319 327) no Hoare annotation was computed. [2018-10-26 21:10:58,736 INFO L428 ceAbstractionStarter]: At program point lowerWaterLevelENTRY(lines 283 294) the Hoare annotation is: true [2018-10-26 21:10:58,736 INFO L425 ceAbstractionStarter]: For program point L287-1(lines 283 294) no Hoare annotation was computed. [2018-10-26 21:10:58,736 INFO L425 ceAbstractionStarter]: For program point lowerWaterLevelEXIT(lines 283 294) no Hoare annotation was computed. [2018-10-26 21:10:58,736 INFO L425 ceAbstractionStarter]: For program point select_featuresEXIT(lines 126 132) no Hoare annotation was computed. [2018-10-26 21:10:58,736 INFO L428 ceAbstractionStarter]: At program point select_featuresFINAL(lines 126 132) the Hoare annotation is: true [2018-10-26 21:10:58,736 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 21:10:58,736 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= ~systemActive~0 1)) [2018-10-26 21:10:58,736 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 21:10:58,736 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 21:10:58,736 INFO L425 ceAbstractionStarter]: For program point setupEXIT(lines 416 422) no Hoare annotation was computed. [2018-10-26 21:10:58,737 INFO L428 ceAbstractionStarter]: At program point setupFINAL(lines 416 422) the Hoare annotation is: true [2018-10-26 21:10:58,737 INFO L425 ceAbstractionStarter]: For program point waterRiseEXIT(lines 295 306) no Hoare annotation was computed. [2018-10-26 21:10:58,737 INFO L425 ceAbstractionStarter]: For program point L299-1(lines 295 306) no Hoare annotation was computed. [2018-10-26 21:10:58,737 INFO L428 ceAbstractionStarter]: At program point waterRiseENTRY(lines 295 306) the Hoare annotation is: true [2018-10-26 21:10:58,737 INFO L425 ceAbstractionStarter]: For program point __automaton_failFINAL(lines 457 464) no Hoare annotation was computed. [2018-10-26 21:10:58,737 INFO L425 ceAbstractionStarter]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 461) no Hoare annotation was computed. [2018-10-26 21:10:58,737 INFO L428 ceAbstractionStarter]: At program point __automaton_failENTRY(lines 457 464) the Hoare annotation is: true [2018-10-26 21:10:58,737 INFO L425 ceAbstractionStarter]: For program point __automaton_failEXIT(lines 457 464) no Hoare annotation was computed. [2018-10-26 21:10:58,737 INFO L421 ceAbstractionStarter]: At program point runTestENTRY(lines 423 432) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~systemActive~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= ~systemActive~0 1)) (not (= |old(~methaneLevelCritical~0)| 0))) [2018-10-26 21:10:58,738 INFO L425 ceAbstractionStarter]: For program point runTestEXIT(lines 423 432) no Hoare annotation was computed. [2018-10-26 21:10:58,738 INFO L425 ceAbstractionStarter]: For program point runTestFINAL(lines 423 432) no Hoare annotation was computed. [2018-10-26 21:10:58,738 INFO L421 ceAbstractionStarter]: At program point L480(line 480) the Hoare annotation is: (not (= 0 ~pumpRunning~0)) [2018-10-26 21:10:58,738 INFO L425 ceAbstractionStarter]: For program point L478(lines 478 484) no Hoare annotation was computed. [2018-10-26 21:10:58,738 INFO L428 ceAbstractionStarter]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 466 490) the Hoare annotation is: true [2018-10-26 21:10:58,738 INFO L421 ceAbstractionStarter]: At program point L476(line 476) the Hoare annotation is: (or (not (= 0 ~pumpRunning~0)) (not (= ~methaneLevelCritical~0 0))) [2018-10-26 21:10:58,738 INFO L425 ceAbstractionStarter]: For program point L476-1(line 476) no Hoare annotation was computed. [2018-10-26 21:10:58,738 INFO L425 ceAbstractionStarter]: For program point L474(lines 474 487) no Hoare annotation was computed. [2018-10-26 21:10:58,738 INFO L425 ceAbstractionStarter]: For program point L474-1(lines 466 490) no Hoare annotation was computed. [2018-10-26 21:10:58,738 INFO L428 ceAbstractionStarter]: At program point L472(line 472) the Hoare annotation is: true [2018-10-26 21:10:58,738 INFO L425 ceAbstractionStarter]: For program point __utac_acc__Specification1_spec__1EXIT(lines 466 490) no Hoare annotation was computed. [2018-10-26 21:10:58,738 INFO L425 ceAbstractionStarter]: For program point L472-1(line 472) no Hoare annotation was computed. [2018-10-26 21:10:58,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 09:10:58 BoogieIcfgContainer [2018-10-26 21:10:58,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 21:10:58,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 21:10:58,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 21:10:58,758 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 21:10:58,758 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 09:10:53" (3/4) ... [2018-10-26 21:10:58,767 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 21:10:58,777 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2018-10-26 21:10:58,777 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment [2018-10-26 21:10:58,777 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_helpers [2018-10-26 21:10:58,777 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure valid_product [2018-10-26 21:10:58,777 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure test [2018-10-26 21:10:58,778 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 21:10:58,778 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure stopSystem [2018-10-26 21:10:58,778 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2018-10-26 21:10:58,778 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 21:10:58,778 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2018-10-26 21:10:58,778 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2018-10-26 21:10:58,778 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2018-10-26 21:10:58,778 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2018-10-26 21:10:58,778 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure lowerWaterLevel [2018-10-26 21:10:58,778 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure select_features [2018-10-26 21:10:58,781 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure setup [2018-10-26 21:10:58,782 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2018-10-26 21:10:58,782 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __automaton_fail [2018-10-26 21:10:58,782 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure runTest [2018-10-26 21:10:58,782 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __utac_acc__Specification1_spec__1 [2018-10-26 21:10:58,791 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 137 nodes and edges [2018-10-26 21:10:58,792 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2018-10-26 21:10:58,792 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2018-10-26 21:10:58,821 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(0 == \old(pumpRunning)) || (0 == pumpRunning && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-10-26 21:10:58,821 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(methaneLevelCritical) == 0) [2018-10-26 21:10:58,865 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_120fed2d-1565-4148-af2a-cf00025b9d79/bin-2019/utaipan/witness.graphml [2018-10-26 21:10:58,865 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 21:10:58,866 INFO L168 Benchmark]: Toolchain (without parser) took 7201.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 960.8 MB in the beginning and 1.0 GB in the end (delta: -86.0 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. [2018-10-26 21:10:58,866 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 21:10:58,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.94 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 936.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-10-26 21:10:58,867 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -212.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-10-26 21:10:58,867 INFO L168 Benchmark]: Boogie Preprocessor took 50.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 21:10:58,867 INFO L168 Benchmark]: RCFGBuilder took 1193.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 79.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 11.5 GB. [2018-10-26 21:10:58,868 INFO L168 Benchmark]: TraceAbstraction took 5299.94 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: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2018-10-26 21:10:58,868 INFO L168 Benchmark]: Witness Printer took 107.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-10-26 21:10:58,869 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 414.94 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 936.6 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 126.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.1 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -212.0 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 50.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1193.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 79.8 MB). Peak memory consumption was 79.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5299.94 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: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * Witness Printer took 107.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 461]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(\old(systemActive) == 1)) || !(\old(methaneLevelCritical) == 0) - InvariantResult [Line: 362]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || (0 == pumpRunning && splverifierCounter == 0)) || !(\old(systemActive) == 1)) || !(\old(methaneLevelCritical) == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 21 procedures, 105 locations, 1 error locations. SAFE Result, 5.2s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.5s AutomataDifference, 0.0s DeadEndRemovalTime, 1.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 494 SDtfs, 242 SDslu, 1007 SDs, 0 SdLazy, 230 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=297occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 300 PreInvPairs, 341 NumberOfFragments, 385 HoareAnnotationTreeSize, 300 FomulaSimplifications, 300 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 44 FomulaSimplificationsInter, 1209 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 260 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 255 ConstructedInterpolants, 0 QuantifiedInterpolants, 24823 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...