./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product63_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product63_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2e5cd7f0160b88327fd5a74ba9af5182d0c658c6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:12:56,991 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:12:56,992 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:12:57,000 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:12:57,001 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:12:57,001 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:12:57,002 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:12:57,004 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:12:57,005 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:12:57,005 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:12:57,006 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:12:57,006 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:12:57,007 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:12:57,007 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:12:57,008 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:12:57,009 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:12:57,009 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:12:57,010 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:12:57,012 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:12:57,013 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:12:57,013 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:12:57,014 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:12:57,016 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:12:57,016 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:12:57,016 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:12:57,017 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:12:57,017 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:12:57,018 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:12:57,018 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:12:57,019 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:12:57,019 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:12:57,020 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:12:57,020 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:12:57,020 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:12:57,021 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:12:57,021 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:12:57,021 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 11:12:57,032 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:12:57,032 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:12:57,033 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:12:57,033 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:12:57,033 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:12:57,033 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 11:12:57,033 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 11:12:57,034 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 11:12:57,034 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 11:12:57,034 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 11:12:57,034 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 11:12:57,034 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:12:57,034 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 11:12:57,034 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:12:57,034 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:12:57,035 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 11:12:57,035 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:12:57,035 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 11:12:57,035 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 11:12:57,035 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 11:12:57,035 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 11:12:57,035 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:12:57,035 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 11:12:57,036 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:12:57,036 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 11:12:57,036 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:12:57,036 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:12:57,036 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 11:12:57,036 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:12:57,036 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:12:57,037 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 11:12:57,037 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 11:12:57,037 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e5cd7f0160b88327fd5a74ba9af5182d0c658c6 [2018-11-28 11:12:57,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:12:57,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:12:57,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:12:57,074 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:12:57,074 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:12:57,074 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product63_true-unreach-call_false-termination.cil.c [2018-11-28 11:12:57,122 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/data/3b67c38b8/2640805fc28e4d04bbddd9f10783eb17/FLAG63b1ce75e [2018-11-28 11:12:57,489 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:12:57,489 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/sv-benchmarks/c/product-lines/minepump_spec2_product63_true-unreach-call_false-termination.cil.c [2018-11-28 11:12:57,499 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/data/3b67c38b8/2640805fc28e4d04bbddd9f10783eb17/FLAG63b1ce75e [2018-11-28 11:12:57,878 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/data/3b67c38b8/2640805fc28e4d04bbddd9f10783eb17 [2018-11-28 11:12:57,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:12:57,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:12:57,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:12:57,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:12:57,884 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:12:57,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:12:57" (1/1) ... [2018-11-28 11:12:57,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@143c444d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:57, skipping insertion in model container [2018-11-28 11:12:57,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:12:57" (1/1) ... [2018-11-28 11:12:57,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:12:57,919 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:12:58,112 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:12:58,123 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:12:58,231 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:12:58,249 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:12:58,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58 WrapperNode [2018-11-28 11:12:58,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:12:58,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:12:58,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:12:58,250 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:12:58,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (1/1) ... [2018-11-28 11:12:58,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (1/1) ... [2018-11-28 11:12:58,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:12:58,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:12:58,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:12:58,312 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:12:58,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (1/1) ... [2018-11-28 11:12:58,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (1/1) ... [2018-11-28 11:12:58,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (1/1) ... [2018-11-28 11:12:58,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (1/1) ... [2018-11-28 11:12:58,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (1/1) ... [2018-11-28 11:12:58,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (1/1) ... [2018-11-28 11:12:58,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (1/1) ... [2018-11-28 11:12:58,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:12:58,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:12:58,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:12:58,358 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:12:58,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 11:12:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 11:12:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 11:12:58,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:12:58,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:12:59,052 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:12:59,052 INFO L280 CfgBuilder]: Removed 354 assue(true) statements. [2018-11-28 11:12:59,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:12:59 BoogieIcfgContainer [2018-11-28 11:12:59,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:12:59,053 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 11:12:59,053 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 11:12:59,055 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 11:12:59,056 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:12:59,056 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:12:57" (1/3) ... [2018-11-28 11:12:59,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@544a6b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:12:59, skipping insertion in model container [2018-11-28 11:12:59,058 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:12:59,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:12:58" (2/3) ... [2018-11-28 11:12:59,058 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@544a6b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:12:59, skipping insertion in model container [2018-11-28 11:12:59,058 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 11:12:59,058 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:12:59" (3/3) ... [2018-11-28 11:12:59,060 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product63_true-unreach-call_false-termination.cil.c [2018-11-28 11:12:59,094 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:12:59,094 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 11:12:59,094 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 11:12:59,094 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 11:12:59,094 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:12:59,094 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:12:59,094 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 11:12:59,094 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:12:59,094 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 11:12:59,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states. [2018-11-28 11:12:59,129 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2018-11-28 11:12:59,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:12:59,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:12:59,135 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:12:59,135 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:12:59,135 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 11:12:59,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 228 states. [2018-11-28 11:12:59,139 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 149 [2018-11-28 11:12:59,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:12:59,139 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:12:59,140 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:12:59,140 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:12:59,143 INFO L794 eck$LassoCheckResult]: Stem: 94#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string23.base, #t~string23.offset := #Ultimate.alloc(13);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 8#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 110#L651true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 26#L659true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 96#L132true assume 0 != main_~tmp~0; 19#L103true ~methAndRunningLastTime~0 := 0; 70#L163true havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 67#L174-1true [2018-11-28 11:12:59,144 INFO L796 eck$LassoCheckResult]: Loop: 67#L174-1true assume !false; 210#L316true assume test_~splverifierCounter~0 < 4; 59#L317true test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 89#L325true assume !(0 != test_~tmp~2); 76#L325-1true test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 99#L335true assume !(0 != test_~tmp___0~1); 98#L335-1true test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 27#L345true assume 0 != test_~tmp___2~0; 10#L351-1true assume !(0 != ~pumpRunning~0); 120#L381true assume !(0 != ~systemActive~0); 189#L388true havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 213#L244-5true __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 72#L174true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 67#L174-1true [2018-11-28 11:12:59,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:59,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2018-11-28 11:12:59,148 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:59,149 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:59,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:12:59,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,319 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:59,319 INFO L82 PathProgramCache]: Analyzing trace with hash 17744979, now seen corresponding path program 1 times [2018-11-28 11:12:59,319 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:59,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:59,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:12:59,320 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:59,332 INFO L82 PathProgramCache]: Analyzing trace with hash 851041485, now seen corresponding path program 1 times [2018-11-28 11:12:59,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:59,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:59,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:12:59,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:12:59,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:12:59,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:12:59,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 11:12:59,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 11:12:59,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 11:12:59,517 INFO L87 Difference]: Start difference. First operand 228 states. Second operand 6 states. [2018-11-28 11:12:59,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:12:59,656 INFO L93 Difference]: Finished difference Result 502 states and 733 transitions. [2018-11-28 11:12:59,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 11:12:59,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 502 states and 733 transitions. [2018-11-28 11:12:59,665 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 327 [2018-11-28 11:12:59,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 502 states to 481 states and 712 transitions. [2018-11-28 11:12:59,674 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 481 [2018-11-28 11:12:59,676 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 481 [2018-11-28 11:12:59,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 481 states and 712 transitions. [2018-11-28 11:12:59,678 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:12:59,679 INFO L705 BuchiCegarLoop]: Abstraction has 481 states and 712 transitions. [2018-11-28 11:12:59,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states and 712 transitions. [2018-11-28 11:12:59,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 265. [2018-11-28 11:12:59,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2018-11-28 11:12:59,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 391 transitions. [2018-11-28 11:12:59,713 INFO L728 BuchiCegarLoop]: Abstraction has 265 states and 391 transitions. [2018-11-28 11:12:59,713 INFO L608 BuchiCegarLoop]: Abstraction has 265 states and 391 transitions. [2018-11-28 11:12:59,714 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 11:12:59,714 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 265 states and 391 transitions. [2018-11-28 11:12:59,715 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2018-11-28 11:12:59,716 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:12:59,716 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:12:59,717 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:12:59,717 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:12:59,717 INFO L794 eck$LassoCheckResult]: Stem: 901#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string23.base, #t~string23.offset := #Ultimate.alloc(13);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 759#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 760#L651 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 804#L659 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 805#L132 assume 0 != main_~tmp~0; 788#L103 ~methAndRunningLastTime~0 := 0; 789#L163 havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 876#L174-1 [2018-11-28 11:12:59,718 INFO L796 eck$LassoCheckResult]: Loop: 876#L174-1 assume !false; 877#L316 assume test_~splverifierCounter~0 < 4; 862#L317 test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 863#L325 assume !(0 != test_~tmp~2); 752#L325-1 test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 889#L335 assume !(0 != test_~tmp___0~1); 899#L335-1 test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 806#L345 assume 0 != test_~tmp___2~0; 764#L351-1 assume !(0 != ~pumpRunning~0); 766#L381 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 922#L465 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret18, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 792#L439-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 793#L413-3 assume !(0 == ~pumpRunning~0); 768#L388 havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 964#L244-5 __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 882#L174 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 876#L174-1 [2018-11-28 11:12:59,718 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:59,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2018-11-28 11:12:59,718 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:59,718 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:59,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:12:59,719 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:59,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1227870023, now seen corresponding path program 1 times [2018-11-28 11:12:59,760 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:59,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:59,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,761 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:12:59,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:12:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:12:59,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:12:59,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:12:59,790 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 11:12:59,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:12:59,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:12:59,791 INFO L87 Difference]: Start difference. First operand 265 states and 391 transitions. cyclomatic complexity: 129 Second operand 3 states. [2018-11-28 11:12:59,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:12:59,883 INFO L93 Difference]: Finished difference Result 262 states and 365 transitions. [2018-11-28 11:12:59,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:12:59,886 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 365 transitions. [2018-11-28 11:12:59,888 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2018-11-28 11:12:59,890 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 262 states and 365 transitions. [2018-11-28 11:12:59,890 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 262 [2018-11-28 11:12:59,890 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 262 [2018-11-28 11:12:59,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 262 states and 365 transitions. [2018-11-28 11:12:59,892 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 11:12:59,892 INFO L705 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2018-11-28 11:12:59,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states and 365 transitions. [2018-11-28 11:12:59,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2018-11-28 11:12:59,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2018-11-28 11:12:59,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 365 transitions. [2018-11-28 11:12:59,902 INFO L728 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2018-11-28 11:12:59,902 INFO L608 BuchiCegarLoop]: Abstraction has 262 states and 365 transitions. [2018-11-28 11:12:59,902 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 11:12:59,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 262 states and 365 transitions. [2018-11-28 11:12:59,904 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 182 [2018-11-28 11:12:59,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 11:12:59,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 11:12:59,906 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:12:59,906 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:12:59,906 INFO L794 eck$LassoCheckResult]: Stem: 1462#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string6.base, #t~string6.offset, 1);call write~init~int(77, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(101, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(116, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(104, #t~string6.base, 4 + #t~string6.offset, 1);call write~init~int(58, #t~string6.base, 5 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 6 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string8.base, #t~string8.offset, 1);call write~init~int(82, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(73, #t~string8.base, 2 + #t~string8.offset, 1);call write~init~int(84, #t~string8.base, 3 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 4 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string10.base, #t~string10.offset, 1);call write~init~int(75, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 2 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string12.base, #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 1 + #t~string12.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string23.base, #t~string23.offset := #Ultimate.alloc(13);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(110, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string27.base, #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(102, #t~string27.base, 2 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 3 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string29.base, #t~string29.offset, 1);call write~init~int(80, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(117, #t~string29.base, 2 + #t~string29.offset, 1);call write~init~int(109, #t~string29.base, 3 + #t~string29.offset, 1);call write~init~int(112, #t~string29.base, 4 + #t~string29.offset, 1);call write~init~int(58, #t~string29.base, 5 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 6 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(110, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 2 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string33.base, #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(102, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 3 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string35.base, #t~string35.offset, 1);call write~init~int(32, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string59.base, #t~string59.offset := #Ultimate.alloc(30);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(9);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(21);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(30);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(9);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(21);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(30);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(9);call #t~string70.base, #t~string70.offset := #Ultimate.alloc(25);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(30);call #t~string72.base, #t~string72.offset := #Ultimate.alloc(9);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(25); 1292#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1293#L651 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1329#L659 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1342#L132 assume 0 != main_~tmp~0; 1322#L103 ~methAndRunningLastTime~0 := 0; 1323#L163 havoc test_#t~nondet13, test_#t~nondet14, test_#t~nondet15, test_#t~nondet16, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1429#L174-1 [2018-11-28 11:12:59,906 INFO L796 eck$LassoCheckResult]: Loop: 1429#L174-1 assume !false; 1430#L316 assume test_~splverifierCounter~0 < 4; 1417#L317 test_~tmp~2 := test_#t~nondet13;havoc test_#t~nondet13; 1418#L325 assume !(0 != test_~tmp~2); 1285#L325-1 test_~tmp___0~1 := test_#t~nondet14;havoc test_#t~nondet14; 1439#L335 assume !(0 != test_~tmp___0~1); 1460#L335-1 test_~tmp___2~0 := test_#t~nondet15;havoc test_#t~nondet15; 1351#L345 assume 0 != test_~tmp___2~0; 1294#L351-1 assume !(0 != ~pumpRunning~0); 1295#L381 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret19, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1343#L465 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret18, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1326#L439-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret17, processEnvironment__wrappee__highWaterSensor_~tmp~3;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3; 1327#L413-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret38, isHighWaterLevel_~retValue_acc~7, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~7;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~3;havoc isHighWaterSensorDry_~retValue_acc~3; 1436#L284-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~3 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~3; 1437#L289-3 isHighWaterLevel_#t~ret38 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret38;havoc isHighWaterLevel_#t~ret38; 1400#L584-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 1375#L584-11 isHighWaterLevel_~retValue_acc~7 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~7; 1362#L590-3 processEnvironment__wrappee__highWaterSensor_#t~ret17 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~3 := processEnvironment__wrappee__highWaterSensor_#t~ret17;havoc processEnvironment__wrappee__highWaterSensor_#t~ret17; 1296#L417-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3); 1297#L388 havoc __utac_acc__Specification2_spec__2_#t~ret1, __utac_acc__Specification2_spec__2_#t~ret2, __utac_acc__Specification2_spec__2_~tmp~1, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 1456#L244-5 __utac_acc__Specification2_spec__2_#t~ret1 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~1 := __utac_acc__Specification2_spec__2_#t~ret1;havoc __utac_acc__Specification2_spec__2_#t~ret1; 1433#L174 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1);~methAndRunningLastTime~0 := 0; 1429#L174-1 [2018-11-28 11:12:59,907 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:59,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2018-11-28 11:12:59,907 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:59,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:59,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:12:59,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:59,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1200754989, now seen corresponding path program 1 times [2018-11-28 11:12:59,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:59,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:59,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,955 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 11:12:59,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:12:59,966 INFO L82 PathProgramCache]: Analyzing trace with hash -2067939431, now seen corresponding path program 1 times [2018-11-28 11:12:59,966 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:12:59,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:12:59,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:12:59,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:12:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:12:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 11:13:00,162 WARN L180 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2018-11-28 11:13:00,297 WARN L180 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-11-28 11:13:05,372 WARN L180 SmtUtils]: Spent 5.07 s on a formula simplification. DAG size of input: 429 DAG size of output: 427 [2018-11-28 11:13:07,788 WARN L180 SmtUtils]: Spent 2.41 s on a formula simplification that was a NOOP. DAG size: 425 [2018-11-28 11:13:07,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:13:07 BoogieIcfgContainer [2018-11-28 11:13:07,830 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 11:13:07,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:13:07,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:13:07,830 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:13:07,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:12:59" (3/4) ... [2018-11-28 11:13:07,835 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 11:13:07,885 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a5beb918-0e06-4006-88a2-cd30743ba92c/bin-2019/uautomizer/witness.graphml [2018-11-28 11:13:07,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:13:07,886 INFO L168 Benchmark]: Toolchain (without parser) took 10005.58 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 294.1 MB). Free memory was 956.0 MB in the beginning and 893.1 MB in the end (delta: 62.9 MB). Peak memory consumption was 357.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:07,887 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:13:07,887 INFO L168 Benchmark]: CACSL2BoogieTranslator took 368.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -144.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:07,888 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:07,888 INFO L168 Benchmark]: Boogie Preprocessor took 46.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:07,888 INFO L168 Benchmark]: RCFGBuilder took 694.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.1 MB). Peak memory consumption was 87.1 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:07,889 INFO L168 Benchmark]: BuchiAutomizer took 8776.73 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 895.2 MB in the end (delta: 107.7 MB). Peak memory consumption was 326.5 MB. Max. memory is 11.5 GB. [2018-11-28 11:13:07,889 INFO L168 Benchmark]: Witness Printer took 55.49 ms. Allocated memory is still 1.3 GB. Free memory is still 893.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:13:07,891 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 368.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.7 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -144.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 60.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 46.55 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 694.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.1 MB). Peak memory consumption was 87.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 8776.73 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 181.4 MB). Free memory was 1.0 GB in the beginning and 895.2 MB in the end (delta: 107.7 MB). Peak memory consumption was 326.5 MB. Max. memory is 11.5 GB. * Witness Printer took 55.49 ms. Allocated memory is still 1.3 GB. Free memory is still 893.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 262 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 8.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 216 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 265 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 573 SDtfs, 1795 SDslu, 1253 SDs, 0 SdLazy, 81 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 315]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=31, NULL=0, retValue_acc=0, NULL=39, NULL=0, NULL=0, NULL=14, NULL=38, NULL=12, methaneLevelCritical=0, NULL=33, NULL=19, tmp___0=0, retValue_acc=1, tmp=0, NULL=0, NULL=0, NULL=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@389037d5=0, NULL=8, retValue_acc=0, tmp___1=0, NULL=24, NULL=28, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b8c6ea4=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@751150bb=0, cleanupTimeShifts=4, NULL=27, NULL=23, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=11, NULL=0, NULL=29, \result=0, NULL=0, NULL=17, NULL=35, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25563222=0, NULL=0, NULL=0, NULL=0, NULL=20, \result=1, tmp___0=0, NULL=16, NULL=0, NULL=0, NULL=0, tmp=1, tmp___2=56, tmp___0=0, splverifierCounter=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=37, NULL=34, NULL=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9412c0b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b89f970=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5464a215=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47cd9d1c=0, NULL=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c208826=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ab3fdf7=0, tmp=0, NULL=26, NULL=0, NULL=0, tmp=0, NULL=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@285dc7f3=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L157] int methAndRunningLastTime ; [L201] int waterLevel = 1; [L202] int methaneLevelCritical = 0; [L374] int pumpRunning = 0; [L375] int systemActive = 1; [L833] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L123] int retValue_acc ; [L124] int tmp ; [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L162] methAndRunningLastTime = 0 [L306] int splverifierCounter ; [L307] int tmp ; [L308] int tmp___0 ; [L309] int tmp___1 ; [L310] int tmp___2 ; [L313] splverifierCounter = 0 Loop: [L315] COND TRUE 1 [L317] COND TRUE splverifierCounter < 4 [L323] tmp = __VERIFIER_nondet_int() [L325] COND FALSE !(\read(tmp)) [L333] tmp___0 = __VERIFIER_nondet_int() [L335] COND FALSE !(\read(tmp___0)) [L343] tmp___2 = __VERIFIER_nondet_int() [L345] COND TRUE \read(tmp___2) [L381] COND FALSE !(\read(pumpRunning)) [L388] COND TRUE \read(systemActive) [L462] int tmp ; [L465] COND FALSE !(\read(pumpRunning)) [L436] int tmp ; [L439] COND FALSE !(\read(pumpRunning)) [L410] int tmp ; [L413] COND TRUE ! pumpRunning [L576] int retValue_acc ; [L577] int tmp ; [L578] int tmp___0 ; [L281] int retValue_acc ; [L284] COND TRUE waterLevel < 2 [L285] retValue_acc = 1 [L286] return (retValue_acc); [L582] tmp = isHighWaterSensorDry() [L584] COND TRUE \read(tmp) [L585] tmp___0 = 0 [L589] retValue_acc = tmp___0 [L590] return (retValue_acc); [L415] tmp = isHighWaterLevel() [L417] COND FALSE !(\read(tmp)) [L167] int tmp ; [L168] int tmp___0 ; [L240] int retValue_acc ; [L243] retValue_acc = methaneLevelCritical [L244] return (retValue_acc); [L172] tmp = isMethaneLevelCritical() [L174] COND FALSE !(\read(tmp)) [L190] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...