./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product49_false-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_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/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 5f66ecd5f6aef5b29bc80dee4a57cabf0f421223 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 13:06:36,821 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:06:36,822 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:06:36,828 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:06:36,828 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:06:36,829 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:06:36,830 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:06:36,831 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:06:36,832 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:06:36,833 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:06:36,833 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:06:36,833 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:06:36,834 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:06:36,835 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:06:36,836 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:06:36,836 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:06:36,837 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:06:36,838 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:06:36,840 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:06:36,841 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:06:36,842 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:06:36,843 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:06:36,844 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:06:36,845 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:06:36,845 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:06:36,845 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:06:36,847 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:06:36,847 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:06:36,848 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:06:36,848 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:06:36,849 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:06:36,849 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:06:36,849 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:06:36,849 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:06:36,851 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:06:36,851 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:06:36,852 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 13:06:36,863 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:06:36,863 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:06:36,864 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:06:36,864 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:06:36,864 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:06:36,864 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 13:06:36,864 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 13:06:36,865 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 13:06:36,865 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 13:06:36,865 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 13:06:36,865 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 13:06:36,865 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:06:36,865 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 13:06:36,866 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:06:36,866 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:06:36,866 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 13:06:36,866 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:06:36,866 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 13:06:36,866 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 13:06:36,866 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 13:06:36,867 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 13:06:36,867 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:06:36,867 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 13:06:36,867 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:06:36,867 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 13:06:36,867 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:06:36,867 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:06:36,868 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 13:06:36,868 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:06:36,868 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:06:36,868 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 13:06:36,869 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 13:06:36,869 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_95bd5090-c9af-4aa7-9a12-0747481ee013/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 -> 5f66ecd5f6aef5b29bc80dee4a57cabf0f421223 [2018-11-28 13:06:36,889 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:06:36,898 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:06:36,900 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:06:36,901 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:06:36,902 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:06:36,902 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product49_false-unreach-call_false-termination.cil.c [2018-11-28 13:06:36,948 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/data/6ec422cd5/9a1d1712085f49b5ac691d710a63d52b/FLAG0a82fbad4 [2018-11-28 13:06:37,387 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:06:37,388 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/sv-benchmarks/c/product-lines/minepump_spec1_product49_false-unreach-call_false-termination.cil.c [2018-11-28 13:06:37,397 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/data/6ec422cd5/9a1d1712085f49b5ac691d710a63d52b/FLAG0a82fbad4 [2018-11-28 13:06:37,409 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/data/6ec422cd5/9a1d1712085f49b5ac691d710a63d52b [2018-11-28 13:06:37,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:06:37,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:06:37,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:06:37,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:06:37,416 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:06:37,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@246385e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37, skipping insertion in model container [2018-11-28 13:06:37,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:06:37,453 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:06:37,639 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:06:37,650 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:06:37,747 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:06:37,764 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:06:37,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37 WrapperNode [2018-11-28 13:06:37,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:06:37,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:06:37,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:06:37,765 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:06:37,770 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:06:37,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:06:37,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:06:37,811 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:06:37,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,832 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,834 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (1/1) ... [2018-11-28 13:06:37,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:06:37,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:06:37,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:06:37,836 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:06:37,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/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 13:06:37,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 13:06:37,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 13:06:37,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:06:37,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:06:38,344 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:06:38,344 INFO L280 CfgBuilder]: Removed 156 assue(true) statements. [2018-11-28 13:06:38,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:06:38 BoogieIcfgContainer [2018-11-28 13:06:38,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:06:38,345 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 13:06:38,345 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 13:06:38,347 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 13:06:38,348 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:06:38,348 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 01:06:37" (1/3) ... [2018-11-28 13:06:38,349 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bd0109f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:06:38, skipping insertion in model container [2018-11-28 13:06:38,349 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:06:38,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:06:37" (2/3) ... [2018-11-28 13:06:38,349 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6bd0109f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:06:38, skipping insertion in model container [2018-11-28 13:06:38,349 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:06:38,349 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:06:38" (3/3) ... [2018-11-28 13:06:38,351 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product49_false-unreach-call_false-termination.cil.c [2018-11-28 13:06:38,383 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:06:38,383 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 13:06:38,383 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 13:06:38,383 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 13:06:38,384 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:06:38,384 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:06:38,384 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 13:06:38,384 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:06:38,384 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 13:06:38,396 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2018-11-28 13:06:38,417 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2018-11-28 13:06:38,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:06:38,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:06:38,424 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 13:06:38,424 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:38,424 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 13:06:38,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states. [2018-11-28 13:06:38,429 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2018-11-28 13:06:38,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:06:38,430 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:06:38,430 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 13:06:38,430 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:38,434 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(110, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 3 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(80, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(117, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(109, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(112, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(32, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 18#L-1true havoc main_#res;havoc main_#t~ret2, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 51#L829true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 66#L837true main_#t~ret2 := valid_product_#res;main_~tmp~1 := main_#t~ret2;havoc main_#t~ret2; 109#L159true assume 0 != main_~tmp~1; 77#L132true havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 10#L51-1true [2018-11-28 13:06:38,434 INFO L796 eck$LassoCheckResult]: Loop: 10#L51-1true assume !false; 21#L753true assume test_~splverifierCounter~0 < 4; 75#L754true test_~tmp~9 := test_#t~nondet59;havoc test_#t~nondet59; 100#L762true assume !(0 != test_~tmp~9); 78#L762-1true test_~tmp___0~3 := test_#t~nondet60;havoc test_#t~nondet60; 26#L772true assume !(0 != test_~tmp___0~3); 30#L772-1true test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 57#L782true assume 0 != test_~tmp___2~0; 40#L788-2true assume !(0 != ~pumpRunning~0); 19#L552true assume !(0 != ~systemActive~0); 68#L559true havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 89#L886true __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 14#L51true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 10#L51-1true [2018-11-28 13:06:38,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:38,439 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-11-28 13:06:38,441 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:38,441 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:38,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:38,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:38,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:38,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:38,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1679775166, now seen corresponding path program 1 times [2018-11-28 13:06:38,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:38,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:38,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:38,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:38,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:38,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:38,610 INFO L82 PathProgramCache]: Analyzing trace with hash 34503772, now seen corresponding path program 1 times [2018-11-28 13:06:38,611 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:38,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:38,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:38,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:38,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:38,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:38,717 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 13:06:38,719 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:06:38,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 13:06:38,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 13:06:38,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 13:06:38,789 INFO L87 Difference]: Start difference. First operand 114 states. Second operand 6 states. [2018-11-28 13:06:38,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:38,871 INFO L93 Difference]: Finished difference Result 114 states and 163 transitions. [2018-11-28 13:06:38,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 13:06:38,873 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 163 transitions. [2018-11-28 13:06:38,876 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2018-11-28 13:06:38,880 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2018-11-28 13:06:38,881 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2018-11-28 13:06:38,882 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2018-11-28 13:06:38,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2018-11-28 13:06:38,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:06:38,883 INFO L705 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2018-11-28 13:06:38,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2018-11-28 13:06:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2018-11-28 13:06:38,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-11-28 13:06:38,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2018-11-28 13:06:38,908 INFO L728 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2018-11-28 13:06:38,908 INFO L608 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2018-11-28 13:06:38,909 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 13:06:38,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2018-11-28 13:06:38,910 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2018-11-28 13:06:38,910 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:06:38,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:06:38,911 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 13:06:38,911 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 13:06:38,911 INFO L794 eck$LassoCheckResult]: Stem: 332#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(110, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 3 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(80, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(117, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(109, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(112, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(32, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 278#L-1 havoc main_#res;havoc main_#t~ret2, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 279#L829 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 318#L837 main_#t~ret2 := valid_product_#res;main_~tmp~1 := main_#t~ret2;havoc main_#t~ret2; 325#L159 assume 0 != main_~tmp~1; 335#L132 havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 262#L51-1 [2018-11-28 13:06:38,911 INFO L796 eck$LassoCheckResult]: Loop: 262#L51-1 assume !false; 263#L753 assume test_~splverifierCounter~0 < 4; 284#L754 test_~tmp~9 := test_#t~nondet59;havoc test_#t~nondet59; 333#L762 assume !(0 != test_~tmp~9); 336#L762-1 test_~tmp___0~3 := test_#t~nondet60;havoc test_#t~nondet60; 288#L772 assume !(0 != test_~tmp___0~3); 289#L772-1 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 294#L782 assume 0 != test_~tmp___2~0; 308#L788-2 assume !(0 != ~pumpRunning~0); 280#L552 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 257#L610 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret38, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 259#L584-1 assume !(0 == ~pumpRunning~0); 261#L559 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 327#L886 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 269#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 262#L51-1 [2018-11-28 13:06:38,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:38,912 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-11-28 13:06:38,912 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:38,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:38,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:38,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:38,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:38,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:38,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:38,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1996917024, now seen corresponding path program 1 times [2018-11-28 13:06:38,960 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:38,960 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:38,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:38,961 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:38,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:06:38,983 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 13:06:38,983 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:06:38,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 13:06:38,984 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 13:06:38,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 13:06:38,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 13:06:38,984 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 Second operand 3 states. [2018-11-28 13:06:39,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:06:39,052 INFO L93 Difference]: Finished difference Result 148 states and 204 transitions. [2018-11-28 13:06:39,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 13:06:39,055 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 204 transitions. [2018-11-28 13:06:39,057 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2018-11-28 13:06:39,058 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 204 transitions. [2018-11-28 13:06:39,059 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2018-11-28 13:06:39,059 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2018-11-28 13:06:39,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 204 transitions. [2018-11-28 13:06:39,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:06:39,060 INFO L705 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2018-11-28 13:06:39,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 204 transitions. [2018-11-28 13:06:39,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-11-28 13:06:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-11-28 13:06:39,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2018-11-28 13:06:39,068 INFO L728 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2018-11-28 13:06:39,068 INFO L608 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2018-11-28 13:06:39,068 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 13:06:39,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 204 transitions. [2018-11-28 13:06:39,069 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2018-11-28 13:06:39,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:06:39,071 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:06:39,071 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 13:06:39,071 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] [2018-11-28 13:06:39,072 INFO L794 eck$LassoCheckResult]: Stem: 597#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string42.base, #t~string42.offset := #Ultimate.alloc(13);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(110, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string46.base, #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 1 + #t~string46.offset, 1);call write~init~int(102, #t~string46.base, 2 + #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 3 + #t~string46.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(80, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(117, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(109, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(112, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(110, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 2 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(102, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 3 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(32, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string56.base, #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 1 + #t~string56.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string65.base, #t~string65.offset := #Ultimate.alloc(13);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(77, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(101, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(116, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(104, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string69.base, #t~string69.offset, 1);call write~init~int(82, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(73, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(84, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 4 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(75, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 539#L-1 havoc main_#res;havoc main_#t~ret2, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 540#L829 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 582#L837 main_#t~ret2 := valid_product_#res;main_~tmp~1 := main_#t~ret2;havoc main_#t~ret2; 590#L159 assume 0 != main_~tmp~1; 600#L132 havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 524#L51-1 [2018-11-28 13:06:39,072 INFO L796 eck$LassoCheckResult]: Loop: 524#L51-1 assume !false; 525#L753 assume test_~splverifierCounter~0 < 4; 544#L754 test_~tmp~9 := test_#t~nondet59;havoc test_#t~nondet59; 598#L762 assume !(0 != test_~tmp~9); 601#L762-1 test_~tmp___0~3 := test_#t~nondet60;havoc test_#t~nondet60; 548#L772 assume !(0 != test_~tmp___0~3); 549#L772-1 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 556#L782 assume 0 != test_~tmp___2~0; 572#L788-2 assume !(0 != ~pumpRunning~0); 541#L552 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 516#L610 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret38, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 517#L584-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret57, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 561#L926-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 562#L931-1 isHighWaterLevel_#t~ret57 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret57;havoc isHighWaterLevel_#t~ret57; 577#L712-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 617#L712-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 604#L718-1 processEnvironment__wrappee__highWaterSensor_#t~ret38 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret38;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38; 529#L588-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 522#L559 havoc __utac_acc__Specification1_spec__1_#t~ret0, __utac_acc__Specification1_spec__1_#t~ret1, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 592#L886 __utac_acc__Specification1_spec__1_#t~ret0 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret0;havoc __utac_acc__Specification1_spec__1_#t~ret0; 530#L51 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 524#L51-1 [2018-11-28 13:06:39,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:39,072 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2018-11-28 13:06:39,072 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:39,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:39,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:39,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:39,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:39,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:39,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1058929100, now seen corresponding path program 1 times [2018-11-28 13:06:39,110 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:39,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:39,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:39,111 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 13:06:39,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:39,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:39,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:06:39,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1515000294, now seen corresponding path program 1 times [2018-11-28 13:06:39,121 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:06:39,121 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:06:39,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:39,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:06:39,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:06:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:06:39,297 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2018-11-28 13:06:43,723 WARN L180 SmtUtils]: Spent 4.39 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-11-28 13:06:45,840 WARN L180 SmtUtils]: Spent 2.12 s on a formula simplification that was a NOOP. DAG size: 423 [2018-11-28 13:06:45,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 01:06:45 BoogieIcfgContainer [2018-11-28 13:06:45,874 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 13:06:45,874 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:06:45,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:06:45,874 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:06:45,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:06:38" (3/4) ... [2018-11-28 13:06:45,877 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 13:06:45,910 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_95bd5090-c9af-4aa7-9a12-0747481ee013/bin-2019/uautomizer/witness.graphml [2018-11-28 13:06:45,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:06:45,911 INFO L168 Benchmark]: Toolchain (without parser) took 8499.16 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.0 MB). Free memory was 949.6 MB in the beginning and 913.1 MB in the end (delta: 36.5 MB). Peak memory consumption was 359.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:06:45,911 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:06:45,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. [2018-11-28 13:06:45,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.00 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:06:45,912 INFO L168 Benchmark]: Boogie Preprocessor took 24.55 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:06:45,913 INFO L168 Benchmark]: RCFGBuilder took 508.76 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: 59.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. [2018-11-28 13:06:45,913 INFO L168 Benchmark]: BuchiAutomizer took 7528.99 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 174.6 MB). Free memory was 1.1 GB in the beginning and 922.8 MB in the end (delta: 146.9 MB). Peak memory consumption was 338.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:06:45,913 INFO L168 Benchmark]: Witness Printer took 36.05 ms. Allocated memory is still 1.4 GB. Free memory was 922.8 MB in the beginning and 913.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:06:45,915 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 351.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 27.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.00 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.55 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 508.76 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: 59.8 MB). Peak memory consumption was 59.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 7528.99 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 174.6 MB). Free memory was 1.1 GB in the beginning and 922.8 MB in the end (delta: 146.9 MB). Peak memory consumption was 338.3 MB. Max. memory is 11.5 GB. * Witness Printer took 36.05 ms. Allocated memory is still 1.4 GB. Free memory was 922.8 MB in the beginning and 913.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. 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 148 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 7.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 7.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 148 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 316 SDtfs, 584 SDslu, 68 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s 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: 752]: 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 {NULL=0, retValue_acc=0, NULL=0, NULL=35, NULL=28, NULL=0, NULL=0, NULL=22, methaneLevelCritical=0, tmp___0=0, NULL=0, NULL=0, NULL=39, NULL=0, tmp___1=0, tmp=0, retValue_acc=0, NULL=14, tmp___0=0, cleanupTimeShifts=4, NULL=20, NULL=24, NULL=37, NULL=23, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6891b56a=0, NULL=15, tmp=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24a48d5c=0, NULL=0, systemActive=1, waterLevel=1, NULL=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5da65a7b=0, NULL=0, NULL=0, \result=0, NULL=33, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, \result=0, NULL=42, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6811f278=0, NULL=34, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@780a4e8e=0, NULL=0, NULL=0, NULL=0, NULL=12, tmp=0, \result=1, NULL=27, NULL=38, retValue_acc=1, NULL=19, NULL=0, NULL=0, tmp=1, tmp___0=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a4bd3a0=0, tmp___2=56, NULL=17, NULL=26, splverifierCounter=0, \result=0, NULL=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@caf3f36=0, head=0, NULL=0, NULL=29, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ec0a86a=0, NULL=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@583ab311=56, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@da1c940=0, NULL=0, NULL=18, NULL=0, NULL=40} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L69] int cleanupTimeShifts = 4; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L545] int pumpRunning = 0; [L546] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L150] int retValue_acc ; [L151] int tmp ; [L833] int retValue_acc ; [L836] retValue_acc = 1 [L837] return (retValue_acc); [L157] tmp = valid_product() [L159] COND TRUE \read(tmp) [L743] int splverifierCounter ; [L744] int tmp ; [L745] int tmp___0 ; [L746] int tmp___1 ; [L747] int tmp___2 ; [L750] splverifierCounter = 0 Loop: [L752] COND TRUE 1 [L754] COND TRUE splverifierCounter < 4 [L760] tmp = __VERIFIER_nondet_int() [L762] COND FALSE !(\read(tmp)) [L770] tmp___0 = __VERIFIER_nondet_int() [L772] COND FALSE !(\read(tmp___0)) [L780] tmp___2 = __VERIFIER_nondet_int() [L782] COND TRUE \read(tmp___2) [L552] COND FALSE !(\read(pumpRunning)) [L559] COND TRUE \read(systemActive) [L607] int tmp ; [L610] COND FALSE !(\read(pumpRunning)) [L581] int tmp ; [L584] COND TRUE ! pumpRunning [L704] int retValue_acc ; [L705] int tmp ; [L706] int tmp___0 ; [L923] int retValue_acc ; [L926] COND TRUE waterLevel < 2 [L927] retValue_acc = 1 [L928] return (retValue_acc); [L710] tmp = isHighWaterSensorDry() [L712] COND TRUE \read(tmp) [L713] tmp___0 = 0 [L717] retValue_acc = tmp___0 [L718] return (retValue_acc); [L586] tmp = isHighWaterLevel() [L588] COND FALSE !(\read(tmp)) [L44] int tmp ; [L45] int tmp___0 ; [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] return (retValue_acc); [L49] tmp = isMethaneLevelCritical() [L51] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...