./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product42_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/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 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 ...................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-01 20:06:25,019 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 20:06:25,021 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 20:06:25,029 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 20:06:25,029 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 20:06:25,030 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 20:06:25,031 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 20:06:25,033 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 20:06:25,034 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 20:06:25,035 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 20:06:25,035 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 20:06:25,036 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 20:06:25,036 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 20:06:25,037 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 20:06:25,038 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 20:06:25,038 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 20:06:25,039 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 20:06:25,040 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 20:06:25,042 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 20:06:25,043 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 20:06:25,044 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 20:06:25,045 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 20:06:25,046 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 20:06:25,046 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 20:06:25,047 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 20:06:25,047 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 20:06:25,048 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 20:06:25,048 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 20:06:25,049 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 20:06:25,050 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 20:06:25,050 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 20:06:25,051 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 20:06:25,051 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 20:06:25,051 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 20:06:25,052 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 20:06:25,052 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 20:06:25,052 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-12-01 20:06:25,064 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 20:06:25,064 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 20:06:25,065 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 20:06:25,065 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 20:06:25,065 INFO L133 SettingsManager]: * Use SBE=true [2018-12-01 20:06:25,065 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-01 20:06:25,066 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-01 20:06:25,066 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-01 20:06:25,066 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-01 20:06:25,066 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-01 20:06:25,066 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-01 20:06:25,066 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 20:06:25,066 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-01 20:06:25,067 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 20:06:25,067 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 20:06:25,067 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-01 20:06:25,067 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 20:06:25,067 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-01 20:06:25,067 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-01 20:06:25,067 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-01 20:06:25,068 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-01 20:06:25,068 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 20:06:25,068 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-01 20:06:25,068 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 20:06:25,068 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-01 20:06:25,068 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 20:06:25,068 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-01 20:06:25,068 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-01 20:06:25,068 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 20:06:25,068 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-01 20:06:25,068 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-01 20:06:25,069 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-01 20:06:25,069 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_4a495164-4cac-4fd5-a8d0-2779ce780daa/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 -> 0f3978068d3e88eb2e8d08ee6f85f2ba09bbc729 [2018-12-01 20:06:25,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 20:06:25,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 20:06:25,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 20:06:25,105 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 20:06:25,105 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 20:06:25,105 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product42_false-unreach-call_false-termination.cil.c [2018-12-01 20:06:25,144 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/data/ff2f62be2/54d083e3044845c19ae8dedb34eb255d/FLAGe00c16532 [2018-12-01 20:06:25,548 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 20:06:25,549 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/sv-benchmarks/c/product-lines/minepump_spec1_product42_false-unreach-call_false-termination.cil.c [2018-12-01 20:06:25,555 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/data/ff2f62be2/54d083e3044845c19ae8dedb34eb255d/FLAGe00c16532 [2018-12-01 20:06:25,563 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/data/ff2f62be2/54d083e3044845c19ae8dedb34eb255d [2018-12-01 20:06:25,564 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 20:06:25,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 20:06:25,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 20:06:25,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 20:06:25,568 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 20:06:25,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46c0e1c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25, skipping insertion in model container [2018-12-01 20:06:25,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 20:06:25,597 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 20:06:25,750 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 20:06:25,791 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 20:06:25,837 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 20:06:25,852 INFO L195 MainTranslator]: Completed translation [2018-12-01 20:06:25,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25 WrapperNode [2018-12-01 20:06:25,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 20:06:25,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 20:06:25,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 20:06:25,853 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 20:06:25,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 20:06:25,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 20:06:25,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 20:06:25,887 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 20:06:25,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (1/1) ... [2018-12-01 20:06:25,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 20:06:25,906 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 20:06:25,907 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 20:06:25,907 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 20:06:25,907 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/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 [2018-12-01 20:06:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-01 20:06:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-01 20:06:25,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 20:06:25,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 20:06:26,239 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 20:06:26,239 INFO L280 CfgBuilder]: Removed 116 assue(true) statements. [2018-12-01 20:06:26,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:06:26 BoogieIcfgContainer [2018-12-01 20:06:26,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 20:06:26,240 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-01 20:06:26,240 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-01 20:06:26,242 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-01 20:06:26,243 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 20:06:26,243 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.12 08:06:25" (1/3) ... [2018-12-01 20:06:26,243 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17c91e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:06:26, skipping insertion in model container [2018-12-01 20:06:26,244 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 20:06:26,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 08:06:25" (2/3) ... [2018-12-01 20:06:26,244 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17c91e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.12 08:06:26, skipping insertion in model container [2018-12-01 20:06:26,244 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-01 20:06:26,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:06:26" (3/3) ... [2018-12-01 20:06:26,245 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product42_false-unreach-call_false-termination.cil.c [2018-12-01 20:06:26,284 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-01 20:06:26,284 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-01 20:06:26,285 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-01 20:06:26,285 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-01 20:06:26,285 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-01 20:06:26,285 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-01 20:06:26,285 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-01 20:06:26,285 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-01 20:06:26,285 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-01 20:06:26,294 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2018-12-01 20:06:26,309 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2018-12-01 20:06:26,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 20:06:26,309 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 20:06:26,314 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 20:06:26,315 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:06:26,315 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-01 20:06:26,315 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 84 states. [2018-12-01 20:06:26,318 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2018-12-01 20:06:26,318 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 20:06:26,318 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 20:06:26,319 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 20:06:26,319 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:06:26,322 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);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~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~cleanupTimeShifts~0 := 4; 11#L-1true havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 39#L820true 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; 59#L828true main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 43#L915true assume 0 != main_~tmp~8; 19#L892true havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 55#L777-1true [2018-12-01 20:06:26,322 INFO L796 eck$LassoCheckResult]: Loop: 55#L777-1true assume !false; 52#L521true assume test_~splverifierCounter~0 < 4; 8#L522true test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 16#L530true assume !(0 != test_~tmp~3); 22#L530-1true test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 80#L540true assume !(0 != test_~tmp___0~0); 82#L540-1true test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 61#L550true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 71#L558-2true assume !(0 != ~pumpRunning~0); 34#L589true assume !(0 != ~systemActive~0); 13#L596true havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 78#L456-1true __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 53#L777true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 55#L777-1true [2018-12-01 20:06:26,325 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:06:26,325 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-12-01 20:06:26,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:06:26,328 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:06:26,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:06:26,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:06:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:06:26,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:06:26,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1680236925, now seen corresponding path program 1 times [2018-12-01 20:06:26,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:06:26,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:06:26,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:06:26,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:06:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:06:26,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:06:26,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 20:06:26,503 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 20:06:26,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 20:06:26,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 20:06:26,513 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2018-12-01 20:06:26,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:06:26,548 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2018-12-01 20:06:26,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 20:06:26,550 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2018-12-01 20:06:26,552 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2018-12-01 20:06:26,554 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2018-12-01 20:06:26,555 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2018-12-01 20:06:26,555 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2018-12-01 20:06:26,556 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2018-12-01 20:06:26,557 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 20:06:26,557 INFO L705 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2018-12-01 20:06:26,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2018-12-01 20:06:26,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2018-12-01 20:06:26,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2018-12-01 20:06:26,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2018-12-01 20:06:26,577 INFO L728 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2018-12-01 20:06:26,577 INFO L608 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2018-12-01 20:06:26,577 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-01 20:06:26,577 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2018-12-01 20:06:26,578 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2018-12-01 20:06:26,578 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 20:06:26,578 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 20:06:26,578 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 20:06:26,578 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-01 20:06:26,578 INFO L794 eck$LassoCheckResult]: Stem: 231#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);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~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~cleanupTimeShifts~0 := 4; 196#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 197#L820 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; 227#L828 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 232#L915 assume 0 != main_~tmp~8; 206#L892 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 207#L777-1 [2018-12-01 20:06:26,579 INFO L796 eck$LassoCheckResult]: Loop: 207#L777-1 assume !false; 242#L521 assume test_~splverifierCounter~0 < 4; 193#L522 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 194#L530 assume !(0 != test_~tmp~3); 205#L530-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 210#L540 assume !(0 != test_~tmp___0~0); 236#L540-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 246#L550 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 247#L558-2 assume !(0 != ~pumpRunning~0); 219#L589 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 179#L621 assume !(0 == ~pumpRunning~0); 181#L596 havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 195#L456-1 __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 241#L777 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 207#L777-1 [2018-12-01 20:06:26,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:06:26,579 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-12-01 20:06:26,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:06:26,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:06:26,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:06:26,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:06:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:06:26,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:06:26,610 INFO L82 PathProgramCache]: Analyzing trace with hash -589506373, now seen corresponding path program 1 times [2018-12-01 20:06:26,610 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:06:26,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:06:26,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,611 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 20:06:26,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 20:06:26,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 20:06:26,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-01 20:06:26,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-01 20:06:26,620 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-12-01 20:06:26,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-01 20:06:26,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-01 20:06:26,620 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand 3 states. [2018-12-01 20:06:26,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-01 20:06:26,660 INFO L93 Difference]: Finished difference Result 118 states and 159 transitions. [2018-12-01 20:06:26,660 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-01 20:06:26,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 159 transitions. [2018-12-01 20:06:26,662 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2018-12-01 20:06:26,663 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 118 states and 159 transitions. [2018-12-01 20:06:26,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 118 [2018-12-01 20:06:26,664 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2018-12-01 20:06:26,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 159 transitions. [2018-12-01 20:06:26,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-01 20:06:26,665 INFO L705 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2018-12-01 20:06:26,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 159 transitions. [2018-12-01 20:06:26,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2018-12-01 20:06:26,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2018-12-01 20:06:26,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2018-12-01 20:06:26,670 INFO L728 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2018-12-01 20:06:26,670 INFO L608 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2018-12-01 20:06:26,670 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-01 20:06:26,670 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 159 transitions. [2018-12-01 20:06:26,671 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2018-12-01 20:06:26,672 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-01 20:06:26,672 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-01 20:06:26,672 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-12-01 20:06:26,672 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] [2018-12-01 20:06:26,672 INFO L794 eck$LassoCheckResult]: Stem: 431#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.alloc(30);call #t~string19.base, #t~string19.offset := #Ultimate.alloc(9);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(21);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~string27.base, #t~string27.offset := #Ultimate.alloc(30);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(9);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string36.base, #t~string36.offset := #Ultimate.alloc(13);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string53.base, #t~string53.offset := #Ultimate.alloc(13);call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string59.base, #t~string59.offset, 1);call write~init~int(80, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(117, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(109, #t~string59.base, 3 + #t~string59.offset, 1);call write~init~int(112, #t~string59.base, 4 + #t~string59.offset, 1);call write~init~int(58, #t~string59.base, 5 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 6 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string65.base, #t~string65.offset, 1);call write~init~int(32, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 2 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string67.base, #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 1 + #t~string67.offset, 1);~cleanupTimeShifts~0 := 4; 395#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 396#L820 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; 427#L828 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 432#L915 assume 0 != main_~tmp~8; 409#L892 havoc test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 410#L777-1 [2018-12-01 20:06:26,673 INFO L796 eck$LassoCheckResult]: Loop: 410#L777-1 assume !false; 443#L521 assume test_~splverifierCounter~0 < 4; 444#L522 test_~tmp~3 := test_#t~nondet45;havoc test_#t~nondet45; 495#L530 assume !(0 != test_~tmp~3); 493#L530-1 test_~tmp___0~0 := test_#t~nondet46;havoc test_#t~nondet46; 492#L540 assume !(0 != test_~tmp___0~0); 490#L540-1 test_~tmp___2~0 := test_#t~nondet47;havoc test_#t~nondet47; 489#L550 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 460#L558-2 assume !(0 != ~pumpRunning~0); 422#L589 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 381#L621 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret68, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 382#L496 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 425#L501 isHighWaterLevel_#t~ret68 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret68;havoc isHighWaterLevel_#t~ret68; 426#L741 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 456#L741-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 441#L747 processEnvironment_#t~ret49 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret49;havoc processEnvironment_#t~ret49; 412#L625 assume !(0 != processEnvironment_~tmp~4); 399#L596 havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 400#L456-1 __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 445#L777 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 410#L777-1 [2018-12-01 20:06:26,673 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:06:26,673 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2018-12-01 20:06:26,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:06:26,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:06:26,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:06:26,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:06:26,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:06:26,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:06:26,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1033634393, now seen corresponding path program 1 times [2018-12-01 20:06:26,711 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:06:26,711 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:06:26,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,712 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-01 20:06:26,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:06:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:06:26,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 20:06:26,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1018922419, now seen corresponding path program 1 times [2018-12-01 20:06:26,721 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-01 20:06:26,721 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-01 20:06:26,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-01 20:06:26,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-01 20:06:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:06:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-01 20:06:30,445 WARN L180 SmtUtils]: Spent 3.55 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-12-01 20:06:32,134 WARN L180 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 423 [2018-12-01 20:06:32,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.12 08:06:32 BoogieIcfgContainer [2018-12-01 20:06:32,167 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-01 20:06:32,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 20:06:32,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 20:06:32,168 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 20:06:32,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 08:06:26" (3/4) ... [2018-12-01 20:06:32,171 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-01 20:06:32,207 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4a495164-4cac-4fd5-a8d0-2779ce780daa/bin-2019/uautomizer/witness.graphml [2018-12-01 20:06:32,207 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 20:06:32,207 INFO L168 Benchmark]: Toolchain (without parser) took 6642.70 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 298.8 MB). Free memory was 957.1 MB in the beginning and 992.7 MB in the end (delta: -35.7 MB). Peak memory consumption was 263.2 MB. Max. memory is 11.5 GB. [2018-12-01 20:06:32,208 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:06:32,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-12-01 20:06:32,208 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:06:32,208 INFO L168 Benchmark]: Boogie Preprocessor took 19.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 20:06:32,208 INFO L168 Benchmark]: RCFGBuilder took 333.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 11.5 GB. [2018-12-01 20:06:32,209 INFO L168 Benchmark]: BuchiAutomizer took 5927.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 173.0 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 44.6 MB). Peak memory consumption was 365.6 MB. Max. memory is 11.5 GB. [2018-12-01 20:06:32,209 INFO L168 Benchmark]: Witness Printer took 39.10 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 992.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2018-12-01 20:06:32,211 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 286.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -152.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 333.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.5 MB). Peak memory consumption was 62.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5927.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 173.0 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 44.6 MB). Peak memory consumption was 365.6 MB. Max. memory is 11.5 GB. * Witness Printer took 39.10 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 992.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 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 3 locations. The remainder module has 118 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 5.7s. 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 118 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 219 SDtfs, 203 SDslu, 48 SDs, 0 SdLazy, 24 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 520]: 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, NULL=36, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3efc63ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f181d7=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@708af8f9=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ef53af7=0, NULL=0, NULL=31, NULL=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65a80089=0, NULL=0, methaneLevelCritical=0, retValue_acc=1, tmp___0=0, tmp=0, NULL=0, retValue_acc=0, NULL=0, tmp___1=0, NULL=16, NULL=19, tmp___0=0, NULL=23, NULL=17, NULL=28, cleanupTimeShifts=4, NULL=12, NULL=34, NULL=33, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5484a817=0, retValue_acc=0, \result=0, NULL=35, tmp___0=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, \result=1, NULL=11, head=0, pumpRunning=0, NULL=27, \result=0, retValue_acc=1, NULL=22, tmp=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28c7098c=0, NULL=0, \result=1, NULL=40, NULL=39, NULL=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7025f6e3=0, tmp___2=56, NULL=15, tmp=1, splverifierCounter=0, NULL=0, \result=0, NULL=38, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cfc301d=0, NULL=0, NULL=24, NULL=18, NULL=0, NULL=14, NULL=0, NULL=0, NULL=26, NULL=37} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L581] int pumpRunning = 0; [L582] int systemActive = 1; [L833] int cleanupTimeShifts = 4; [L906] int retValue_acc ; [L907] int tmp ; [L824] int retValue_acc ; [L827] retValue_acc = 1 [L828] return (retValue_acc); [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) [L511] int splverifierCounter ; [L512] int tmp ; [L513] int tmp___0 ; [L514] int tmp___1 ; [L515] int tmp___2 ; [L518] splverifierCounter = 0 Loop: [L520] COND TRUE 1 [L522] COND TRUE splverifierCounter < 4 [L528] tmp = __VERIFIER_nondet_int() [L530] COND FALSE !(\read(tmp)) [L538] tmp___0 = __VERIFIER_nondet_int() [L540] COND FALSE !(\read(tmp___0)) [L548] tmp___2 = __VERIFIER_nondet_int() [L550] COND TRUE \read(tmp___2) [L755] systemActive = 1 [L589] COND FALSE !(\read(pumpRunning)) [L596] COND TRUE \read(systemActive) [L618] int tmp ; [L621] COND TRUE ! pumpRunning [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; [L493] int retValue_acc ; [L496] COND TRUE waterLevel < 2 [L497] retValue_acc = 1 [L498] return (retValue_acc); [L739] tmp = isHighWaterSensorDry() [L741] COND TRUE \read(tmp) [L742] tmp___0 = 0 [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); [L623] tmp = isHighWaterLevel() [L625] COND FALSE !(\read(tmp)) [L770] int tmp ; [L771] int tmp___0 ; [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L775] tmp = isMethaneLevelCritical() [L777] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...