./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product46_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product46_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/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 209a5f451d4da606f6f89775a0cb8490169e98a1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.23-5842f4b [2018-11-18 16:00:28,683 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:00:28,684 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:00:28,691 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:00:28,691 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:00:28,692 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:00:28,692 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:00:28,693 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:00:28,694 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:00:28,695 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:00:28,696 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:00:28,696 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:00:28,697 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:00:28,697 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:00:28,698 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:00:28,699 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:00:28,699 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:00:28,700 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:00:28,702 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:00:28,703 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:00:28,703 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:00:28,704 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:00:28,706 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:00:28,706 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:00:28,706 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:00:28,707 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:00:28,707 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:00:28,709 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:00:28,709 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:00:28,710 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:00:28,710 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:00:28,711 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:00:28,711 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:00:28,711 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:00:28,711 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:00:28,712 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:00:28,713 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:00:28,723 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:00:28,724 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:00:28,725 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:00:28,725 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:00:28,725 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:00:28,725 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:00:28,725 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:00:28,725 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:00:28,725 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:00:28,726 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:00:28,726 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:00:28,726 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:00:28,726 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:00:28,726 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:00:28,726 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:00:28,726 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:00:28,726 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:00:28,726 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:00:28,726 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:00:28,727 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:00:28,727 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:00:28,727 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:00:28,727 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:00:28,727 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:00:28,727 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:00:28,727 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:00:28,727 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:00:28,727 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:00:28,727 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:00:28,728 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:00:28,728 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:00:28,728 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:00:28,728 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_21e9195b-3027-4694-8aa2-059bd799a3df/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 -> 209a5f451d4da606f6f89775a0cb8490169e98a1 [2018-11-18 16:00:28,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:00:28,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:00:28,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:00:28,761 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:00:28,761 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:00:28,762 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec4_product46_false-unreach-call_false-termination.cil.c [2018-11-18 16:00:28,798 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/data/62a3cd757/fdeb6f7ba9ba48fdad4fbbc40c210854/FLAG20397af26 [2018-11-18 16:00:29,243 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:00:29,243 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/sv-benchmarks/c/product-lines/minepump_spec4_product46_false-unreach-call_false-termination.cil.c [2018-11-18 16:00:29,251 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/data/62a3cd757/fdeb6f7ba9ba48fdad4fbbc40c210854/FLAG20397af26 [2018-11-18 16:00:29,259 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/data/62a3cd757/fdeb6f7ba9ba48fdad4fbbc40c210854 [2018-11-18 16:00:29,262 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:00:29,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:00:29,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:00:29,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:00:29,265 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:00:29,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,267 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c3b532 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29, skipping insertion in model container [2018-11-18 16:00:29,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:00:29,302 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:00:29,493 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:00:29,501 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:00:29,609 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:00:29,632 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:00:29,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29 WrapperNode [2018-11-18 16:00:29,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:00:29,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:00:29,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:00:29,633 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:00:29,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,650 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,679 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:00:29,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:00:29,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:00:29,679 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:00:29,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (1/1) ... [2018-11-18 16:00:29,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:00:29,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:00:29,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:00:29,719 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:00:29,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/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 [2018-11-18 16:00:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:00:29,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:00:29,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:00:30,322 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:00:30,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:00:30 BoogieIcfgContainer [2018-11-18 16:00:30,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:00:30,324 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:00:30,325 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:00:30,328 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:00:30,329 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:00:30,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:00:29" (1/3) ... [2018-11-18 16:00:30,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64817f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:00:30, skipping insertion in model container [2018-11-18 16:00:30,330 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:00:30,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:00:29" (2/3) ... [2018-11-18 16:00:30,331 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64817f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:00:30, skipping insertion in model container [2018-11-18 16:00:30,331 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:00:30,331 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:00:30" (3/3) ... [2018-11-18 16:00:30,333 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product46_false-unreach-call_false-termination.cil.c [2018-11-18 16:00:30,377 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:00:30,378 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:00:30,378 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:00:30,378 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:00:30,379 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:00:30,379 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:00:30,379 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:00:30,379 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:00:30,379 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:00:30,392 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states. [2018-11-18 16:00:30,416 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2018-11-18 16:00:30,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:00:30,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:00:30,422 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:00:30,422 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:00:30,423 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:00:30,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states. [2018-11-18 16:00:30,428 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 119 [2018-11-18 16:00:30,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:00:30,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:00:30,429 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:00:30,429 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:00:30,433 INFO L794 eck$LassoCheckResult]: Stem: 130#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(13);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 44];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 77];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 101];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 116];#memory_int := #memory_int[#t~string62.base,4 + #t~string62.offset := 104];#memory_int := #memory_int[#t~string62.base,5 + #t~string62.offset := 58];#memory_int := #memory_int[#t~string62.base,6 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 67];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 82];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 73];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 84];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 75];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 41];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 16#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 141#L941true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 83#L934true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 167#L949true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 102#L130true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 34#L103true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 103#L862-3true [2018-11-18 16:00:30,434 INFO L796 eck$LassoCheckResult]: Loop: 103#L862-3true assume true; 100#L862-1true assume !false; 40#L863true assume test_~splverifierCounter~0 < 4; 146#L864true test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 151#L872true assume !(0 != test_~tmp~9); 155#L872-2true test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 48#L882true assume !(0 != test_~tmp___0~2); 53#L882-2true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 110#L892true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet72;havoc test_#t~nondet72; 115#L900true assume 0 != test_~tmp___1~0; 119#L900-2true assume { :begin_inline_timeShift } true; 101#L562true assume !(0 != ~pumpRunning~0); 104#L562-2true assume !(0 != ~systemActive~0); 162#L569-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 9#L833true __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 60#L155true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 56#L155-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 59#L579true assume { :end_inline_timeShift } true; 103#L862-3true [2018-11-18 16:00:30,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:30,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 16:00:30,439 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:00:30,439 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:00:30,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:30,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:00:30,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:30,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:30,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:30,678 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:30,678 INFO L82 PathProgramCache]: Analyzing trace with hash -944869900, now seen corresponding path program 1 times [2018-11-18 16:00:30,679 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:00:30,679 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:00:30,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:30,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:00:30,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:30,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:30,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:30,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:30,692 INFO L82 PathProgramCache]: Analyzing trace with hash 237771448, now seen corresponding path program 1 times [2018-11-18 16:00:30,692 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:00:30,692 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:00:30,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:30,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:00:30,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:00:30,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:00:30,806 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:00:30,807 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:00:30,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:00:30,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:00:30,911 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 6 states. [2018-11-18 16:00:31,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:00:31,082 INFO L93 Difference]: Finished difference Result 180 states and 232 transitions. [2018-11-18 16:00:31,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 16:00:31,084 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 180 states and 232 transitions. [2018-11-18 16:00:31,088 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2018-11-18 16:00:31,093 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 180 states to 170 states and 222 transitions. [2018-11-18 16:00:31,094 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 170 [2018-11-18 16:00:31,094 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 170 [2018-11-18 16:00:31,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 170 states and 222 transitions. [2018-11-18 16:00:31,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:00:31,096 INFO L705 BuchiCegarLoop]: Abstraction has 170 states and 222 transitions. [2018-11-18 16:00:31,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states and 222 transitions. [2018-11-18 16:00:31,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2018-11-18 16:00:31,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2018-11-18 16:00:31,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 222 transitions. [2018-11-18 16:00:31,123 INFO L728 BuchiCegarLoop]: Abstraction has 170 states and 222 transitions. [2018-11-18 16:00:31,124 INFO L608 BuchiCegarLoop]: Abstraction has 170 states and 222 transitions. [2018-11-18 16:00:31,124 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:00:31,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 170 states and 222 transitions. [2018-11-18 16:00:31,126 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2018-11-18 16:00:31,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:00:31,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:00:31,127 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:00:31,127 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] [2018-11-18 16:00:31,127 INFO L794 eck$LassoCheckResult]: Stem: 533#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(13);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 44];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 77];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 101];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 116];#memory_int := #memory_int[#t~string62.base,4 + #t~string62.offset := 104];#memory_int := #memory_int[#t~string62.base,5 + #t~string62.offset := 58];#memory_int := #memory_int[#t~string62.base,6 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 67];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 82];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 73];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 84];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 75];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 41];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 401#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 402#L941 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 500#L934 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 501#L949 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 524#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 433#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 434#L862-3 [2018-11-18 16:00:31,128 INFO L796 eck$LassoCheckResult]: Loop: 434#L862-3 assume true; 522#L862-1 assume !false; 442#L863 assume test_~splverifierCounter~0 < 4; 443#L864 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 541#L872 assume !(0 != test_~tmp~9); 537#L872-2 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 451#L882 assume !(0 != test_~tmp___0~2); 453#L882-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 463#L892 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 525#L754 assume { :end_inline_startSystem } true; 527#L900-2 assume { :begin_inline_timeShift } true; 523#L562 assume !(0 != ~pumpRunning~0); 421#L562-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 511#L620 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 512#L594-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 536#L586-3 assume { :end_inline_processEnvironment__wrappee__base } true; 480#L594-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 517#L620-1 assume { :end_inline_processEnvironment } true; 518#L569-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 392#L833 __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 393#L155 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 467#L155-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 468#L579 assume { :end_inline_timeShift } true; 434#L862-3 [2018-11-18 16:00:31,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:31,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 16:00:31,128 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:00:31,128 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:00:31,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:31,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:00:31,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:31,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:31,203 INFO L82 PathProgramCache]: Analyzing trace with hash -2052354461, now seen corresponding path program 1 times [2018-11-18 16:00:31,204 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:00:31,204 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:00:31,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:31,205 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:00:31,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:31,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:00:31,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:00:31,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:00:31,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:00:31,234 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:00:31,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:00:31,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:00:31,235 INFO L87 Difference]: Start difference. First operand 170 states and 222 transitions. cyclomatic complexity: 54 Second operand 3 states. [2018-11-18 16:00:31,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:00:31,322 INFO L93 Difference]: Finished difference Result 234 states and 293 transitions. [2018-11-18 16:00:31,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:00:31,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 234 states and 293 transitions. [2018-11-18 16:00:31,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2018-11-18 16:00:31,327 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 234 states to 234 states and 293 transitions. [2018-11-18 16:00:31,327 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 234 [2018-11-18 16:00:31,327 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 234 [2018-11-18 16:00:31,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 234 states and 293 transitions. [2018-11-18 16:00:31,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:00:31,329 INFO L705 BuchiCegarLoop]: Abstraction has 234 states and 293 transitions. [2018-11-18 16:00:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states and 293 transitions. [2018-11-18 16:00:31,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2018-11-18 16:00:31,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2018-11-18 16:00:31,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 293 transitions. [2018-11-18 16:00:31,337 INFO L728 BuchiCegarLoop]: Abstraction has 234 states and 293 transitions. [2018-11-18 16:00:31,337 INFO L608 BuchiCegarLoop]: Abstraction has 234 states and 293 transitions. [2018-11-18 16:00:31,338 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:00:31,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 234 states and 293 transitions. [2018-11-18 16:00:31,339 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 164 [2018-11-18 16:00:31,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:00:31,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:00:31,340 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:00:31,341 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, 1, 1, 1, 1, 1] [2018-11-18 16:00:31,341 INFO L794 eck$LassoCheckResult]: Stem: 946#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string21.base, #t~string21.offset := #Ultimate.alloc(30);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(9);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(21);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(30);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(9);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(21);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(30);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(9);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(25);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(13);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 44];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 77];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 101];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 116];#memory_int := #memory_int[#t~string62.base,4 + #t~string62.offset := 104];#memory_int := #memory_int[#t~string62.base,5 + #t~string62.offset := 58];#memory_int := #memory_int[#t~string62.base,6 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 67];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 82];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 73];#memory_int := #memory_int[#t~string64.base,3 + #t~string64.offset := 84];#memory_int := #memory_int[#t~string64.base,4 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 79];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 75];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 41];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 811#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 812#L941 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 910#L934 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 911#L949 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 934#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 843#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 844#L862-3 [2018-11-18 16:00:31,341 INFO L796 eck$LassoCheckResult]: Loop: 844#L862-3 assume true; 931#L862-1 assume !false; 851#L863 assume test_~splverifierCounter~0 < 4; 852#L864 test_~tmp~9 := test_#t~nondet69;havoc test_#t~nondet69; 1023#L872 assume !(0 != test_~tmp~9); 1021#L872-2 test_~tmp___0~2 := test_#t~nondet70;havoc test_#t~nondet70; 1019#L882 assume !(0 != test_~tmp___0~2); 873#L882-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 874#L892 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 936#L754 assume { :end_inline_startSystem } true; 939#L900-2 assume { :begin_inline_timeShift } true; 932#L562 assume !(0 != ~pumpRunning~0); 933#L562-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 921#L620 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret38, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 922#L594-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 817#L841-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 818#L846-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 850#L739-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 815#L739-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 816#L745-1 processEnvironment__wrappee__methaneQuery_#t~ret38 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret38;havoc processEnvironment__wrappee__methaneQuery_#t~ret38; 899#L598-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 901#L586-2 assume { :end_inline_processEnvironment__wrappee__base } true; 891#L594-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 927#L620-1 assume { :end_inline_processEnvironment } true; 928#L569-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret1, __utac_acc__Specification4_spec__1_#t~ret2, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 802#L833 __utac_acc__Specification4_spec__1_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret1;havoc __utac_acc__Specification4_spec__1_#t~ret1; 803#L155 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 878#L155-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 879#L579 assume { :end_inline_timeShift } true; 844#L862-3 [2018-11-18 16:00:31,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:31,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 16:00:31,342 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:00:31,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:00:31,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:31,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:00:31,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:31,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:31,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:31,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:31,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1367919323, now seen corresponding path program 1 times [2018-11-18 16:00:31,402 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:00:31,402 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:00:31,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:31,403 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:00:31,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:31,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:31,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:00:31,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1242184599, now seen corresponding path program 1 times [2018-11-18 16:00:31,412 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:00:31,412 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:00:31,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:31,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:00:31,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:00:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:00:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:01:13,473 WARN L180 SmtUtils]: Spent 41.88 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 16:01:35,282 WARN L180 SmtUtils]: Spent 21.81 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 16:01:35,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:01:35 BoogieIcfgContainer [2018-11-18 16:01:35,349 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:01:35,349 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:01:35,349 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:01:35,349 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:01:35,350 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:00:30" (3/4) ... [2018-11-18 16:01:35,353 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 16:01:35,400 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_21e9195b-3027-4694-8aa2-059bd799a3df/bin-2019/uautomizer/witness.graphml [2018-11-18 16:01:35,400 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:01:35,401 INFO L168 Benchmark]: Toolchain (without parser) took 66138.94 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 284.2 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -261.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:35,401 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:01:35,402 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -195.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:35,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:35,402 INFO L168 Benchmark]: Boogie Preprocessor took 39.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:35,403 INFO L168 Benchmark]: RCFGBuilder took 604.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 82.4 MB). Peak memory consumption was 82.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:35,403 INFO L168 Benchmark]: BuchiAutomizer took 65024.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -161.9 MB). Peak memory consumption was 306.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:35,403 INFO L168 Benchmark]: Witness Printer took 51.23 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:01:35,405 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 369.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 165.2 MB). Free memory was 956.4 MB in the beginning and 1.2 GB in the end (delta: -195.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 604.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 82.4 MB). Peak memory consumption was 82.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 65024.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 119.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -161.9 MB). Peak memory consumption was 306.3 MB. Max. memory is 11.5 GB. * Witness Printer took 51.23 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 234 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 64.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 64.5s. Construction of modules took 0.1s. 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 234 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 434 SDtfs, 847 SDslu, 99 SDs, 0 SdLazy, 38 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 862]: 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, "CRIT"=0, ",Meth:"=0, "Off"=0, ") "=34, retValue_acc=0, "On"=0, "Env(Water:%i"=0, "Pump(System:"=0, "CRIT"=38, methaneLevelCritical=0, tmp___0=0, retValue_acc=1, ")"=0, "i > 0 && i <= this->argsCount"=16, "OK"=0, ")"=8, tmp___1=0, tmp=0, retValue_acc=0, "__utac__get_this_arg"=24, tmp___0=0, cleanupTimeShifts=4, "libacc.c"=15, "libacc.c"=22, "libacc.c"=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18eaf799=0, "On"=11, "Off"=33, "libacc.c"=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d61415c=0, NULL=0, systemActive=1, waterLevel=1, \result=1, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@256b1de5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b58df5f=0, ",Pump:"=0, \result=0, "Off"=28, "Env(Water:%i"=36, ") "=0, "\n"=0, "Off"=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, ",Pump:"=29, "\n"=35, \result=0, "i > 0 && i <= this->argsCount"=27, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a0f1a49=0, "OK"=39, "__utac__get_this_argtype"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50013ee=0, "i > 0 && i <= this->argsCount"=0, "On"=0, "libacc.c"=0, "__utac__get_this_argtype"=12, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c66167f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f0ccc15=170, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11eb82f1=0, "libacc.c"=26, tmp=1, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66bdc38b=0, tmp___2=170, tmp___0=0, "i > 0 && i <= this->argsCount"=19, "__utac__get_this_arg"=20, splverifierCounter=0, head=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=23, "i > 0 && i <= this->argsCount"=0, tmp=0, "__utac__get_this_argtype"=17, "libacc.c"=0, "libacc.c"=0, "Pump(System:"=14, ",Meth:"=37, "On"=31, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 862]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L470] FCALL "i > 0 && i <= this->argsCount" [L470] FCALL "libacc.c" [L471] FCALL "__utac__get_this_arg" [L477] FCALL "i > 0 && i <= this->argsCount" [L477] FCALL "libacc.c" [L478] FCALL "__utac__get_this_arg" [L516] FCALL "i > 0 && i <= this->argsCount" [L516] FCALL "libacc.c" [L517] FCALL "__utac__get_this_argtype" [L523] FCALL "i > 0 && i <= this->argsCount" [L523] FCALL "libacc.c" [L524] FCALL "__utac__get_this_argtype" [L699] FCALL "Pump(System:" [L703] FCALL "On" [L707] FCALL "Off" [L711] FCALL ",Pump:" [L715] FCALL "On" [L719] FCALL "Off" [L723] FCALL ") " [L725] FCALL "\n" [L810] FCALL "Env(Water:%i" [L811] FCALL ",Meth:" [L815] FCALL "CRIT" [L819] FCALL "OK" [L823] FCALL ")" [L40] int cleanupTimeShifts = 4; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L758] int waterLevel = 1; [L759] int methaneLevelCritical = 0; [L342] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L945] int retValue_acc ; [L948] retValue_acc = 1 [L949] RET return (retValue_acc); [L128] EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L853] int splverifierCounter ; [L854] int tmp ; [L855] int tmp___0 ; [L856] int tmp___1 ; [L857] int tmp___2 ; [L860] splverifierCounter = 0 Loop: [L862] COND TRUE 1 [L864] COND TRUE splverifierCounter < 4 [L870] tmp = __VERIFIER_nondet_int() [L872] COND FALSE !(\read(tmp)) [L880] tmp___0 = __VERIFIER_nondet_int() [L882] COND FALSE !(\read(tmp___0)) [L890] tmp___2 = __VERIFIER_nondet_int() [L892] COND TRUE \read(tmp___2) [L894] CALL startSystem() [L753] RET systemActive = 1 [L894] startSystem() [L907] CALL timeShift() [L562] COND FALSE !(\read(pumpRunning)) [L569] COND TRUE \read(systemActive) [L571] CALL processEnvironment() [L617] int tmp ; [L620] COND FALSE !(\read(pumpRunning)) [L635] CALL processEnvironment__wrappee__methaneQuery() [L591] int tmp ; [L594] COND TRUE ! pumpRunning [L596] CALL, EXPR isHighWaterLevel() [L731] int retValue_acc ; [L732] int tmp ; [L733] int tmp___0 ; [L737] CALL, EXPR isHighWaterSensorDry() [L838] int retValue_acc ; [L841] COND TRUE waterLevel < 2 [L842] retValue_acc = 1 [L843] RET return (retValue_acc); [L737] EXPR isHighWaterSensorDry() [L737] tmp = isHighWaterSensorDry() [L739] COND TRUE \read(tmp) [L740] tmp___0 = 0 [L744] retValue_acc = tmp___0 [L745] RET return (retValue_acc); [L596] EXPR isHighWaterLevel() [L596] tmp = isHighWaterLevel() [L598] COND FALSE !(\read(tmp)) [L604] RET, FCALL processEnvironment__wrappee__base() [L635] RET processEnvironment__wrappee__methaneQuery() [L571] processEnvironment() [L577] CALL __utac_acc__Specification4_spec__1() [L148] int tmp ; [L149] int tmp___0 ; [L153] CALL, EXPR getWaterLevel() [L829] int retValue_acc ; [L832] retValue_acc = waterLevel [L833] RET return (retValue_acc); [L153] EXPR getWaterLevel() [L153] tmp = getWaterLevel() [L155] COND FALSE, RET !(tmp == 0) [L577] RET __utac_acc__Specification4_spec__1() [L907] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...