./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product55_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_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product55_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/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 07b1c242ee38ca5843c5ca9be19cecfe3ff6bd0c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 10:34:00,497 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 10:34:00,498 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 10:34:00,506 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 10:34:00,506 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 10:34:00,507 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 10:34:00,508 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 10:34:00,508 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 10:34:00,509 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 10:34:00,510 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 10:34:00,510 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 10:34:00,510 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 10:34:00,511 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 10:34:00,512 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 10:34:00,512 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 10:34:00,513 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 10:34:00,513 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 10:34:00,514 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 10:34:00,515 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 10:34:00,516 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 10:34:00,517 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 10:34:00,518 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 10:34:00,519 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 10:34:00,520 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 10:34:00,520 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 10:34:00,520 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 10:34:00,521 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 10:34:00,521 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 10:34:00,522 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 10:34:00,523 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 10:34:00,523 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 10:34:00,523 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 10:34:00,523 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 10:34:00,524 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 10:34:00,524 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 10:34:00,525 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 10:34:00,525 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 10:34:00,534 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 10:34:00,534 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 10:34:00,535 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 10:34:00,536 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 10:34:00,536 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 10:34:00,536 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 10:34:00,536 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 10:34:00,536 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 10:34:00,536 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 10:34:00,537 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 10:34:00,537 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 10:34:00,537 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 10:34:00,537 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 10:34:00,537 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 10:34:00,537 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 10:34:00,537 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 10:34:00,538 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 10:34:00,538 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 10:34:00,538 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 10:34:00,538 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 10:34:00,538 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 10:34:00,538 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 10:34:00,539 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 10:34:00,539 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 10:34:00,539 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 10:34:00,539 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 10:34:00,539 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 10:34:00,539 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 10:34:00,540 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 10:34:00,540 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 10:34:00,540 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 10:34:00,541 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 10:34:00,541 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_6dd7666d-cf38-4abc-a1e9-893e10f9720a/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 -> 07b1c242ee38ca5843c5ca9be19cecfe3ff6bd0c [2018-11-28 10:34:00,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 10:34:00,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 10:34:00,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 10:34:00,577 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 10:34:00,577 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 10:34:00,578 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product55_false-unreach-call_false-termination.cil.c [2018-11-28 10:34:00,621 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/data/7788fa24c/8ed16dfe736e4bfe838d1005d783eee9/FLAG3c6b30819 [2018-11-28 10:34:01,077 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 10:34:01,078 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/sv-benchmarks/c/product-lines/minepump_spec3_product55_false-unreach-call_false-termination.cil.c [2018-11-28 10:34:01,085 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/data/7788fa24c/8ed16dfe736e4bfe838d1005d783eee9/FLAG3c6b30819 [2018-11-28 10:34:01,095 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/data/7788fa24c/8ed16dfe736e4bfe838d1005d783eee9 [2018-11-28 10:34:01,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 10:34:01,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 10:34:01,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 10:34:01,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 10:34:01,102 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 10:34:01,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5adb3118 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01, skipping insertion in model container [2018-11-28 10:34:01,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 10:34:01,137 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 10:34:01,328 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:34:01,392 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 10:34:01,450 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 10:34:01,475 INFO L195 MainTranslator]: Completed translation [2018-11-28 10:34:01,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01 WrapperNode [2018-11-28 10:34:01,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 10:34:01,476 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 10:34:01,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 10:34:01,477 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 10:34:01,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,495 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 10:34:01,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 10:34:01,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 10:34:01,533 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 10:34:01,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,561 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (1/1) ... [2018-11-28 10:34:01,577 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 10:34:01,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 10:34:01,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 10:34:01,578 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 10:34:01,579 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/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 10:34:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 10:34:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 10:34:01,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 10:34:01,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 10:34:02,252 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 10:34:02,253 INFO L280 CfgBuilder]: Removed 286 assue(true) statements. [2018-11-28 10:34:02,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:34:02 BoogieIcfgContainer [2018-11-28 10:34:02,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 10:34:02,254 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 10:34:02,254 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 10:34:02,256 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 10:34:02,257 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:34:02,257 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 10:34:01" (1/3) ... [2018-11-28 10:34:02,258 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@597f0333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:34:02, skipping insertion in model container [2018-11-28 10:34:02,258 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:34:02,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 10:34:01" (2/3) ... [2018-11-28 10:34:02,258 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@597f0333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 10:34:02, skipping insertion in model container [2018-11-28 10:34:02,258 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 10:34:02,259 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:34:02" (3/3) ... [2018-11-28 10:34:02,260 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product55_false-unreach-call_false-termination.cil.c [2018-11-28 10:34:02,297 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 10:34:02,297 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 10:34:02,297 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 10:34:02,297 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 10:34:02,297 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 10:34:02,298 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 10:34:02,298 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 10:34:02,298 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 10:34:02,298 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 10:34:02,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states. [2018-11-28 10:34:02,335 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2018-11-28 10:34:02,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:34:02,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:34:02,341 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 10:34:02,341 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:34:02,341 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 10:34:02,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states. [2018-11-28 10:34:02,346 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2018-11-28 10:34:02,346 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:34:02,346 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:34:02,346 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 10:34:02,347 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:34:02,350 INFO L794 eck$LassoCheckResult]: Stem: 53#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(21);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(30);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(9);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(30);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(9);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1); 5#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~9, main_~tmp~3;havoc main_~retValue_acc~9;havoc main_~tmp~3; 6#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 95#L73true main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 65#L649true assume 0 != main_~tmp~3; 139#L625true havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 91#L921-1true [2018-11-28 10:34:02,350 INFO L796 eck$LassoCheckResult]: Loop: 91#L921-1true assume !false; 9#L951true assume test_~splverifierCounter~0 < 4; 58#L952true test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 194#L960true assume !(0 != test_~tmp~10); 195#L960-1true test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 114#L970true assume !(0 != test_~tmp___0~3); 98#L970-1true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 46#L980true assume 0 != test_~tmp___2~0; 123#L986-1true assume !(0 != ~pumpRunning~0); 31#L675true assume !(0 != ~systemActive~0); 87#L682true havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 183#L129-1true __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 101#L915true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 91#L921-1true [2018-11-28 10:34:02,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:02,355 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-11-28 10:34:02,356 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:02,357 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:02,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:02,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:02,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:02,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:02,514 INFO L82 PathProgramCache]: Analyzing trace with hash -1667892546, now seen corresponding path program 1 times [2018-11-28 10:34:02,514 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:02,514 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:02,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:02,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:02,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:02,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:02,524 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:02,524 INFO L82 PathProgramCache]: Analyzing trace with hash 46386392, now seen corresponding path program 1 times [2018-11-28 10:34:02,524 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:02,525 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:02,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:02,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:02,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:34:02,627 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 10:34:02,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:34:02,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 10:34:02,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 10:34:02,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-28 10:34:02,693 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 6 states. [2018-11-28 10:34:02,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:34:02,835 INFO L93 Difference]: Finished difference Result 438 states and 645 transitions. [2018-11-28 10:34:02,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 10:34:02,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 438 states and 645 transitions. [2018-11-28 10:34:02,845 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 285 [2018-11-28 10:34:02,853 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 438 states to 417 states and 624 transitions. [2018-11-28 10:34:02,854 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 417 [2018-11-28 10:34:02,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 417 [2018-11-28 10:34:02,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 417 states and 624 transitions. [2018-11-28 10:34:02,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 10:34:02,858 INFO L705 BuchiCegarLoop]: Abstraction has 417 states and 624 transitions. [2018-11-28 10:34:02,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states and 624 transitions. [2018-11-28 10:34:02,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 234. [2018-11-28 10:34:02,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-11-28 10:34:02,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 348 transitions. [2018-11-28 10:34:02,891 INFO L728 BuchiCegarLoop]: Abstraction has 234 states and 348 transitions. [2018-11-28 10:34:02,892 INFO L608 BuchiCegarLoop]: Abstraction has 234 states and 348 transitions. [2018-11-28 10:34:02,892 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 10:34:02,892 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 348 transitions. [2018-11-28 10:34:02,894 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 160 [2018-11-28 10:34:02,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:34:02,894 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:34:02,894 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 10:34:02,895 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:34:02,895 INFO L794 eck$LassoCheckResult]: Stem: 797#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(21);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(30);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(9);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(30);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(9);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1); 667#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~9, main_~tmp~3;havoc main_~retValue_acc~9;havoc main_~tmp~3; 668#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 665#L73 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 666#L649 assume 0 != main_~tmp~3; 779#L625 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 652#L921-1 [2018-11-28 10:34:02,895 INFO L796 eck$LassoCheckResult]: Loop: 652#L921-1 assume !false; 653#L951 assume test_~splverifierCounter~0 < 4; 675#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 809#L960 assume !(0 != test_~tmp~10); 817#L960-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 729#L970 assume !(0 != test_~tmp___0~3); 687#L970-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 688#L980 assume 0 != test_~tmp___2~0; 750#L986-1 assume !(0 != ~pumpRunning~0); 677#L675 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 752#L759 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret48, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 737#L733-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 739#L707-3 assume !(0 == ~pumpRunning~0); 713#L682 havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 825#L129-1 __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 692#L915 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 652#L921-1 [2018-11-28 10:34:02,895 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:02,896 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-11-28 10:34:02,896 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:02,896 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:02,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:02,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:02,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:02,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:02,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:02,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:02,944 INFO L82 PathProgramCache]: Analyzing trace with hash -2101003031, now seen corresponding path program 1 times [2018-11-28 10:34:02,944 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:02,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:02,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:02,945 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 10:34:02,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:34:02,963 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 10:34:02,963 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:34:02,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 10:34:02,964 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 10:34:02,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 10:34:02,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 10:34:02,965 INFO L87 Difference]: Start difference. First operand 234 states and 348 transitions. cyclomatic complexity: 117 Second operand 3 states. [2018-11-28 10:34:03,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:34:03,075 INFO L93 Difference]: Finished difference Result 243 states and 337 transitions. [2018-11-28 10:34:03,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 10:34:03,076 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 243 states and 337 transitions. [2018-11-28 10:34:03,078 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 170 [2018-11-28 10:34:03,080 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 243 states to 243 states and 337 transitions. [2018-11-28 10:34:03,081 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2018-11-28 10:34:03,081 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2018-11-28 10:34:03,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 337 transitions. [2018-11-28 10:34:03,082 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 10:34:03,083 INFO L705 BuchiCegarLoop]: Abstraction has 243 states and 337 transitions. [2018-11-28 10:34:03,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 337 transitions. [2018-11-28 10:34:03,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2018-11-28 10:34:03,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-11-28 10:34:03,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 337 transitions. [2018-11-28 10:34:03,092 INFO L728 BuchiCegarLoop]: Abstraction has 243 states and 337 transitions. [2018-11-28 10:34:03,092 INFO L608 BuchiCegarLoop]: Abstraction has 243 states and 337 transitions. [2018-11-28 10:34:03,092 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 10:34:03,092 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 243 states and 337 transitions. [2018-11-28 10:34:03,093 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 170 [2018-11-28 10:34:03,094 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:34:03,094 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:34:03,094 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 10:34:03,094 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:34:03,095 INFO L794 eck$LassoCheckResult]: Stem: 1267#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(21);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(30);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(9);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(30);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(9);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1); 1150#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~9, main_~tmp~3;havoc main_~retValue_acc~9;havoc main_~tmp~3; 1151#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1148#L73 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 1149#L649 assume 0 != main_~tmp~3; 1250#L625 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1135#L921-1 [2018-11-28 10:34:03,095 INFO L796 eck$LassoCheckResult]: Loop: 1135#L921-1 assume !false; 1136#L951 assume test_~splverifierCounter~0 < 4; 1160#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 1275#L960 assume !(0 != test_~tmp~10); 1279#L960-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 1208#L970 assume !(0 != test_~tmp___0~3); 1166#L970-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 1167#L980 assume 0 != test_~tmp___2~0; 1225#L986-1 assume !(0 != ~pumpRunning~0); 1226#L675 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1227#L759 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret48, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 1215#L733-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1216#L707-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 1156#L169-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 1157#L174-3 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 1232#L861-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~0 := 0; 1266#L861-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1260#L867-3 processEnvironment__wrappee__highWaterSensor_#t~ret47 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret47;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47; 1191#L711-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 1193#L682 havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 1285#L129-1 __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 1173#L915 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9; 1135#L921-1 [2018-11-28 10:34:03,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:03,095 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2018-11-28 10:34:03,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:03,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:03,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:03,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:03,136 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:03,136 INFO L82 PathProgramCache]: Analyzing trace with hash 2033396629, now seen corresponding path program 1 times [2018-11-28 10:34:03,137 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:03,137 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:03,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,138 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 10:34:03,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:03,147 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:03,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1008265541, now seen corresponding path program 1 times [2018-11-28 10:34:03,147 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:03,147 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:03,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:03,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 10:34:03,200 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 10:34:03,201 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 10:34:03,201 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 10:34:03,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 10:34:03,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 10:34:03,342 INFO L87 Difference]: Start difference. First operand 243 states and 337 transitions. cyclomatic complexity: 97 Second operand 5 states. [2018-11-28 10:34:03,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 10:34:03,497 INFO L93 Difference]: Finished difference Result 806 states and 1118 transitions. [2018-11-28 10:34:03,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 10:34:03,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 806 states and 1118 transitions. [2018-11-28 10:34:03,504 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 595 [2018-11-28 10:34:03,509 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 806 states to 806 states and 1118 transitions. [2018-11-28 10:34:03,509 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 806 [2018-11-28 10:34:03,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 806 [2018-11-28 10:34:03,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 806 states and 1118 transitions. [2018-11-28 10:34:03,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 10:34:03,511 INFO L705 BuchiCegarLoop]: Abstraction has 806 states and 1118 transitions. [2018-11-28 10:34:03,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states and 1118 transitions. [2018-11-28 10:34:03,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 480. [2018-11-28 10:34:03,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2018-11-28 10:34:03,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 656 transitions. [2018-11-28 10:34:03,547 INFO L728 BuchiCegarLoop]: Abstraction has 480 states and 656 transitions. [2018-11-28 10:34:03,547 INFO L608 BuchiCegarLoop]: Abstraction has 480 states and 656 transitions. [2018-11-28 10:34:03,548 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 10:34:03,548 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 480 states and 656 transitions. [2018-11-28 10:34:03,550 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 340 [2018-11-28 10:34:03,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 10:34:03,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 10:34:03,551 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 10:34:03,551 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 10:34:03,551 INFO L794 eck$LassoCheckResult]: Stem: 2350#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(21);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(30);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(9);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(30);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(9);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1); 2217#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~9, main_~tmp~3;havoc main_~retValue_acc~9;havoc main_~tmp~3; 2218#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 2215#L73 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 2216#L649 assume 0 != main_~tmp~3; 2323#L625 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2324#L921-1 [2018-11-28 10:34:03,551 INFO L796 eck$LassoCheckResult]: Loop: 2324#L921-1 assume !false; 2572#L951 assume test_~splverifierCounter~0 < 4; 2573#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 2664#L960 assume !(0 != test_~tmp~10); 2662#L960-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 2660#L970 assume !(0 != test_~tmp___0~3); 2658#L970-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 2657#L980 assume 0 != test_~tmp___2~0; 2629#L986-1 assume !(0 != ~pumpRunning~0); 2623#L675 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 2598#L759 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret48, processEnvironment__wrappee__lowWaterSensor_~tmp~5;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~5; 2595#L733-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret47, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 2615#L707-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 2611#L169-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 2609#L174-3 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 2607#L861-9 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~0 := 0; 2599#L861-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2596#L867-3 processEnvironment__wrappee__highWaterSensor_#t~ret47 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret47;havoc processEnvironment__wrappee__highWaterSensor_#t~ret47; 2256#L711-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4); 2258#L682 havoc __utac_acc__Specification3_spec__1_#t~ret69, __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_~tmp~9, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~9;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 2584#L129-1 __utac_acc__Specification3_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~9 := __utac_acc__Specification3_spec__1_#t~ret69;havoc __utac_acc__Specification3_spec__1_#t~ret69; 2583#L915 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 2582#L161 __utac_acc__Specification3_spec__1_#t~ret70 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 2580#L921 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 2324#L921-1 [2018-11-28 10:34:03,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:03,552 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2018-11-28 10:34:03,552 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:03,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:03,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:03,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:03,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:03,581 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:03,582 INFO L82 PathProgramCache]: Analyzing trace with hash -115947609, now seen corresponding path program 1 times [2018-11-28 10:34:03,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:03,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:03,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,583 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 10:34:03,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:03,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 10:34:03,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1719435597, now seen corresponding path program 1 times [2018-11-28 10:34:03,592 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 10:34:03,592 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 10:34:03,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 10:34:03,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 10:34:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:03,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 10:34:08,793 WARN L180 SmtUtils]: Spent 4.98 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-11-28 10:34:11,338 WARN L180 SmtUtils]: Spent 2.54 s on a formula simplification that was a NOOP. DAG size: 423 [2018-11-28 10:34:11,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 10:34:11 BoogieIcfgContainer [2018-11-28 10:34:11,382 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 10:34:11,382 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 10:34:11,382 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 10:34:11,382 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 10:34:11,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 10:34:02" (3/4) ... [2018-11-28 10:34:11,385 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 10:34:11,430 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_6dd7666d-cf38-4abc-a1e9-893e10f9720a/bin-2019/uautomizer/witness.graphml [2018-11-28 10:34:11,430 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 10:34:11,431 INFO L168 Benchmark]: Toolchain (without parser) took 10332.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 195.0 MB). Free memory was 949.6 MB in the beginning and 1.2 GB in the end (delta: -236.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:34:11,431 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:34:11,431 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:11,432 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:11,432 INFO L168 Benchmark]: Boogie Preprocessor took 44.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:11,433 INFO L168 Benchmark]: RCFGBuilder took 676.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.6 MB). Peak memory consumption was 75.6 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:11,433 INFO L168 Benchmark]: BuchiAutomizer took 9127.92 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -167.4 MB). Peak memory consumption was 238.3 MB. Max. memory is 11.5 GB. [2018-11-28 10:34:11,433 INFO L168 Benchmark]: Witness Printer took 48.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 10:34:11,435 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.77 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 949.6 MB in the beginning and 1.1 GB in the end (delta: -155.1 MB). Peak memory consumption was 30.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.14 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.30 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 676.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.6 MB). Peak memory consumption was 75.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 9127.92 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 79.7 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -167.4 MB). Peak memory consumption was 238.3 MB. Max. memory is 11.5 GB. * Witness Printer took 48.03 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 480 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 9.0s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 8.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 509 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 480 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 831 SDtfs, 2172 SDslu, 2232 SDs, 0 SdLazy, 154 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 950]: 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=0, NULL=28, NULL=0, NULL=0, NULL=0, NULL=16, methaneLevelCritical=0, NULL=38, tmp___1=0, NULL=34, NULL=0, NULL=0, NULL=39, cleanupTimeShifts=4, NULL=24, tmp=0, waterLevel=1, NULL=0, NULL=0, NULL=35, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10b3236f=0, NULL=27, retValue_acc=1, \result=1, head=0, pumpRunning=0, tmp=1, retValue_acc=1, NULL=0, NULL=0, \result=1, retValue_acc=0, tmp=1, tmp___0=0, NULL=15, head=0, tmp=0, NULL=36, NULL=0, NULL=0, NULL=29, NULL=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5384e7b1=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76b44e20=0, NULL=26, NULL=0, retValue_acc=0, NULL=23, NULL=31, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@449e349e=0, tmp___0=0, NULL=12, NULL=0, NULL=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ecccbac=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3da125a2=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57b2380b=0, tmp=0, NULL=20, NULL=37, tmp___0=1, NULL=0, NULL=0, systemActive=1, \result=1, NULL=0, \result=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=33, \result=0, NULL=40, NULL=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7698d847=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25480e10=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@385eebe6=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16e338f5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70737099=0, retValue_acc=1, tmp=0, tmp___2=56, splverifierCounter=0, \result=0, NULL=42, tmp___1=0, NULL=17, NULL=19} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 Loop: [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND FALSE !(\read(tmp)) [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND TRUE \read(tmp___2) [L675] COND FALSE !(\read(pumpRunning)) [L682] COND TRUE \read(systemActive) [L756] int tmp ; [L759] COND FALSE !(\read(pumpRunning)) [L730] int tmp ; [L733] COND FALSE !(\read(pumpRunning)) [L704] int tmp ; [L707] COND TRUE ! pumpRunning [L853] int retValue_acc ; [L854] int tmp ; [L855] int tmp___0 ; [L166] int retValue_acc ; [L169] COND TRUE waterLevel < 2 [L170] retValue_acc = 1 [L171] return (retValue_acc); [L859] tmp = isHighWaterSensorDry() [L861] COND TRUE \read(tmp) [L862] tmp___0 = 0 [L866] retValue_acc = tmp___0 [L867] return (retValue_acc); [L709] tmp = isHighWaterLevel() [L711] COND FALSE !(\read(tmp)) [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L919] tmp___0 = getWaterLevel() [L921] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...