./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product55_true-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_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product55_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/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 d3b2c25dcf3994b536a04bc5bf3e1c9a29f5c50b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 17:13:15,702 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:13:15,703 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:13:15,710 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:13:15,710 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:13:15,711 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:13:15,712 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:13:15,713 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:13:15,714 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:13:15,714 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:13:15,715 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:13:15,715 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:13:15,716 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:13:15,716 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:13:15,717 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:13:15,718 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:13:15,718 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:13:15,719 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:13:15,721 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:13:15,722 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:13:15,722 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:13:15,723 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:13:15,725 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:13:15,725 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:13:15,725 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:13:15,726 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:13:15,727 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:13:15,727 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:13:15,728 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:13:15,728 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:13:15,729 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:13:15,729 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:13:15,729 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:13:15,729 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:13:15,730 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:13:15,730 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:13:15,730 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 17:13:15,741 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:13:15,741 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:13:15,742 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:13:15,742 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:13:15,742 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:13:15,742 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 17:13:15,743 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 17:13:15,743 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 17:13:15,743 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 17:13:15,743 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 17:13:15,743 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 17:13:15,743 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:13:15,743 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 17:13:15,744 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:13:15,744 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:13:15,744 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 17:13:15,744 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:13:15,744 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 17:13:15,744 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 17:13:15,744 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 17:13:15,744 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 17:13:15,744 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:13:15,745 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 17:13:15,745 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:13:15,745 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 17:13:15,745 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:13:15,745 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:13:15,745 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 17:13:15,745 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:13:15,745 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:13:15,746 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 17:13:15,746 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 17:13:15,746 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_d67af394-d6d5-40aa-8340-d20972d4edfc/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 -> d3b2c25dcf3994b536a04bc5bf3e1c9a29f5c50b [2018-11-18 17:13:15,767 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:13:15,775 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:13:15,777 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:13:15,778 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:13:15,778 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:13:15,779 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec2_product55_true-unreach-call_false-termination.cil.c [2018-11-18 17:13:15,815 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/data/e8c8f0097/bd521a8e71c8462bb9f5077833c8bb2d/FLAG409e95882 [2018-11-18 17:13:16,245 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:13:16,245 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/sv-benchmarks/c/product-lines/minepump_spec2_product55_true-unreach-call_false-termination.cil.c [2018-11-18 17:13:16,252 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/data/e8c8f0097/bd521a8e71c8462bb9f5077833c8bb2d/FLAG409e95882 [2018-11-18 17:13:16,261 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/data/e8c8f0097/bd521a8e71c8462bb9f5077833c8bb2d [2018-11-18 17:13:16,263 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:13:16,264 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:13:16,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:13:16,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:13:16,268 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:13:16,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,270 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@345e74ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16, skipping insertion in model container [2018-11-18 17:13:16,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:13:16,306 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:13:16,496 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:13:16,505 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:13:16,602 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:13:16,620 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:13:16,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16 WrapperNode [2018-11-18 17:13:16,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:13:16,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:13:16,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:13:16,621 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:13:16,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:13:16,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:13:16,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:13:16,664 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:13:16,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,677 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (1/1) ... [2018-11-18 17:13:16,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:13:16,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:13:16,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:13:16,703 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:13:16,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/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 17:13:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 17:13:16,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:13:16,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:13:17,429 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:13:17,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:13:17 BoogieIcfgContainer [2018-11-18 17:13:17,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:13:17,430 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 17:13:17,430 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 17:13:17,433 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 17:13:17,433 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:13:17,433 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 05:13:16" (1/3) ... [2018-11-18 17:13:17,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e7a1964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:13:17, skipping insertion in model container [2018-11-18 17:13:17,435 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:13:17,435 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:13:16" (2/3) ... [2018-11-18 17:13:17,435 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4e7a1964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:13:17, skipping insertion in model container [2018-11-18 17:13:17,435 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:13:17,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:13:17" (3/3) ... [2018-11-18 17:13:17,437 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product55_true-unreach-call_false-termination.cil.c [2018-11-18 17:13:17,474 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:13:17,474 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 17:13:17,475 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 17:13:17,475 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 17:13:17,475 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:13:17,475 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:13:17,475 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 17:13:17,475 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:13:17,475 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 17:13:17,488 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 280 states. [2018-11-18 17:13:17,510 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2018-11-18 17:13:17,510 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:13:17,511 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:13:17,516 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:13:17,516 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:13:17,516 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 17:13:17,516 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 280 states. [2018-11-18 17:13:17,521 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 184 [2018-11-18 17:13:17,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:13:17,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:13:17,522 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:13:17,522 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:13:17,526 INFO L794 eck$LassoCheckResult]: Stem: 118#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string4.base,#t~string4.offset := 44];#memory_int := #memory_int[#t~string4.base,1 + #t~string4.offset := 77];#memory_int := #memory_int[#t~string4.base,2 + #t~string4.offset := 101];#memory_int := #memory_int[#t~string4.base,3 + #t~string4.offset := 116];#memory_int := #memory_int[#t~string4.base,4 + #t~string4.offset := 104];#memory_int := #memory_int[#t~string4.base,5 + #t~string4.offset := 58];#memory_int := #memory_int[#t~string4.base,6 + #t~string4.offset := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 67];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 82];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 73];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 84];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 75];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 41];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 44];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 80];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 117];#memory_int := #memory_int[#t~string26.base,3 + #t~string26.offset := 109];#memory_int := #memory_int[#t~string26.base,4 + #t~string26.offset := 112];#memory_int := #memory_int[#t~string26.base,5 + #t~string26.offset := 58];#memory_int := #memory_int[#t~string26.base,6 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 110];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 79];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 41];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 32];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 10];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(21);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(30);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(9);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 13#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 17#L65true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 226#L58true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;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; 142#L73true main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 115#L991true assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 70#L967true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 127#L875true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 28#L202-3true [2018-11-18 17:13:17,526 INFO L796 eck$LassoCheckResult]: Loop: 28#L202-3true assume true; 33#L202-1true assume !false; 138#L203true assume test_~splverifierCounter~0 < 4; 108#L204true test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 237#L212true assume !(0 != test_~tmp~0); 231#L212-2true test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 281#L222true assume !(0 != test_~tmp___0~0); 280#L222-2true test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 179#L232true assume 0 != test_~tmp___2~0; 166#L238-2true assume { :begin_inline_timeShift } true; 154#L271true assume !(0 != ~pumpRunning~0); 169#L271-2true assume !(0 != ~systemActive~0); 264#L278-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;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; 275#L129-1true __utac_acc__Specification2_spec__2_#t~ret72 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret72;havoc __utac_acc__Specification2_spec__2_#t~ret72; 126#L886true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 129#L886-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 147#L288true assume { :end_inline_timeShift } true; 28#L202-3true [2018-11-18 17:13:17,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:13:17,531 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 17:13:17,532 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:13:17,532 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:13:17,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:17,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:13:17,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:17,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:13:17,685 INFO L82 PathProgramCache]: Analyzing trace with hash -951623813, now seen corresponding path program 1 times [2018-11-18 17:13:17,685 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:13:17,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:13:17,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:17,686 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:13:17,686 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:17,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:17,695 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:13:17,696 INFO L82 PathProgramCache]: Analyzing trace with hash -1687565390, now seen corresponding path program 1 times [2018-11-18 17:13:17,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:13:17,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:13:17,696 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:17,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:13:17,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:13:17,808 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 17:13:17,810 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:13:17,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 17:13:17,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 17:13:17,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 17:13:17,900 INFO L87 Difference]: Start difference. First operand 280 states. Second operand 6 states. [2018-11-18 17:13:18,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:13:18,147 INFO L93 Difference]: Finished difference Result 615 states and 822 transitions. [2018-11-18 17:13:18,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 17:13:18,149 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 615 states and 822 transitions. [2018-11-18 17:13:18,157 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 403 [2018-11-18 17:13:18,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 615 states to 585 states and 792 transitions. [2018-11-18 17:13:18,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 585 [2018-11-18 17:13:18,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 585 [2018-11-18 17:13:18,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 585 states and 792 transitions. [2018-11-18 17:13:18,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:13:18,171 INFO L705 BuchiCegarLoop]: Abstraction has 585 states and 792 transitions. [2018-11-18 17:13:18,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states and 792 transitions. [2018-11-18 17:13:18,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 324. [2018-11-18 17:13:18,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2018-11-18 17:13:18,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 438 transitions. [2018-11-18 17:13:18,212 INFO L728 BuchiCegarLoop]: Abstraction has 324 states and 438 transitions. [2018-11-18 17:13:18,212 INFO L608 BuchiCegarLoop]: Abstraction has 324 states and 438 transitions. [2018-11-18 17:13:18,213 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 17:13:18,213 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 324 states and 438 transitions. [2018-11-18 17:13:18,215 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 224 [2018-11-18 17:13:18,215 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:13:18,215 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:13:18,216 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:13:18,216 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 17:13:18,216 INFO L794 eck$LassoCheckResult]: Stem: 1083#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string4.base,#t~string4.offset := 44];#memory_int := #memory_int[#t~string4.base,1 + #t~string4.offset := 77];#memory_int := #memory_int[#t~string4.base,2 + #t~string4.offset := 101];#memory_int := #memory_int[#t~string4.base,3 + #t~string4.offset := 116];#memory_int := #memory_int[#t~string4.base,4 + #t~string4.offset := 104];#memory_int := #memory_int[#t~string4.base,5 + #t~string4.offset := 58];#memory_int := #memory_int[#t~string4.base,6 + #t~string4.offset := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 67];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 82];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 73];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 84];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 75];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 41];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 44];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 80];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 117];#memory_int := #memory_int[#t~string26.base,3 + #t~string26.offset := 109];#memory_int := #memory_int[#t~string26.base,4 + #t~string26.offset := 112];#memory_int := #memory_int[#t~string26.base,5 + #t~string26.offset := 58];#memory_int := #memory_int[#t~string26.base,6 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 110];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 79];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 41];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 32];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 10];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(21);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(30);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(9);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 937#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 938#L65 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 947#L58 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;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; 1113#L73 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 1078#L991 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1030#L967 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1031#L875 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 968#L202-3 [2018-11-18 17:13:18,217 INFO L796 eck$LassoCheckResult]: Loop: 968#L202-3 assume true; 969#L202-1 assume !false; 977#L203 assume test_~splverifierCounter~0 < 4; 1074#L204 test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 1075#L212 assume !(0 != test_~tmp~0); 1093#L212-2 test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 1155#L222 assume !(0 != test_~tmp___0~0); 1141#L222-2 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 1129#L232 assume 0 != test_~tmp___2~0; 1122#L238-2 assume { :begin_inline_timeShift } true; 1115#L271 assume !(0 != ~pumpRunning~0); 959#L271-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1124#L355 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret18, isMethaneAlarm_~retValue_acc~6;havoc isMethaneAlarm_~retValue_acc~6;assume { :begin_inline_isMethaneLevelCritical } true;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; 1170#L129 isMethaneAlarm_#t~ret18 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~6 := isMethaneAlarm_#t~ret18;havoc isMethaneAlarm_#t~ret18;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~6; 1180#L399 processEnvironment_#t~ret17 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3 := processEnvironment_#t~ret17;havoc processEnvironment_#t~ret17; 1123#L359 assume 0 != processEnvironment_~tmp~3;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 1002#L389-1 assume { :end_inline_deactivatePump } true; 946#L355-1 assume { :end_inline_processEnvironment } true; 1172#L278-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;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; 1176#L129-1 __utac_acc__Specification2_spec__2_#t~ret72 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret72;havoc __utac_acc__Specification2_spec__2_#t~ret72; 1094#L886 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 1042#L886-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1098#L288 assume { :end_inline_timeShift } true; 968#L202-3 [2018-11-18 17:13:18,217 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:13:18,217 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 17:13:18,217 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:13:18,218 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:13:18,218 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:18,218 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:13:18,219 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:18,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:13:18,261 INFO L82 PathProgramCache]: Analyzing trace with hash 346522500, now seen corresponding path program 1 times [2018-11-18 17:13:18,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:13:18,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:13:18,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:18,262 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:13:18,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:13:18,276 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 17:13:18,276 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:13:18,276 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 17:13:18,276 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 17:13:18,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:13:18,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:13:18,277 INFO L87 Difference]: Start difference. First operand 324 states and 438 transitions. cyclomatic complexity: 117 Second operand 3 states. [2018-11-18 17:13:18,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:13:18,397 INFO L93 Difference]: Finished difference Result 334 states and 428 transitions. [2018-11-18 17:13:18,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:13:18,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 334 states and 428 transitions. [2018-11-18 17:13:18,401 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2018-11-18 17:13:18,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 334 states to 334 states and 428 transitions. [2018-11-18 17:13:18,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 334 [2018-11-18 17:13:18,403 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 334 [2018-11-18 17:13:18,403 INFO L73 IsDeterministic]: Start isDeterministic. Operand 334 states and 428 transitions. [2018-11-18 17:13:18,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:13:18,404 INFO L705 BuchiCegarLoop]: Abstraction has 334 states and 428 transitions. [2018-11-18 17:13:18,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states and 428 transitions. [2018-11-18 17:13:18,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2018-11-18 17:13:18,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2018-11-18 17:13:18,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 428 transitions. [2018-11-18 17:13:18,415 INFO L728 BuchiCegarLoop]: Abstraction has 334 states and 428 transitions. [2018-11-18 17:13:18,415 INFO L608 BuchiCegarLoop]: Abstraction has 334 states and 428 transitions. [2018-11-18 17:13:18,415 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 17:13:18,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 334 states and 428 transitions. [2018-11-18 17:13:18,417 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2018-11-18 17:13:18,418 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:13:18,418 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:13:18,418 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:13:18,418 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, 1] [2018-11-18 17:13:18,419 INFO L794 eck$LassoCheckResult]: Stem: 1711#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string2.base, #t~string2.offset := #Ultimate.alloc(13);call #t~string4.base, #t~string4.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string4.base,#t~string4.offset := 44];#memory_int := #memory_int[#t~string4.base,1 + #t~string4.offset := 77];#memory_int := #memory_int[#t~string4.base,2 + #t~string4.offset := 101];#memory_int := #memory_int[#t~string4.base,3 + #t~string4.offset := 116];#memory_int := #memory_int[#t~string4.base,4 + #t~string4.offset := 104];#memory_int := #memory_int[#t~string4.base,5 + #t~string4.offset := 58];#memory_int := #memory_int[#t~string4.base,6 + #t~string4.offset := 0];call #t~string6.base, #t~string6.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 67];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 82];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 73];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 84];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 79];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 75];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 41];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 44];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 80];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 117];#memory_int := #memory_int[#t~string26.base,3 + #t~string26.offset := 109];#memory_int := #memory_int[#t~string26.base,4 + #t~string26.offset := 112];#memory_int := #memory_int[#t~string26.base,5 + #t~string26.offset := 58];#memory_int := #memory_int[#t~string26.base,6 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 79];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 110];#memory_int := #memory_int[#t~string28.base,2 + #t~string28.offset := 0];call #t~string30.base, #t~string30.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string30.base,#t~string30.offset := 79];#memory_int := #memory_int[#t~string30.base,1 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,2 + #t~string30.offset := 102];#memory_int := #memory_int[#t~string30.base,3 + #t~string30.offset := 0];call #t~string32.base, #t~string32.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string32.base,#t~string32.offset := 41];#memory_int := #memory_int[#t~string32.base,1 + #t~string32.offset := 32];#memory_int := #memory_int[#t~string32.base,2 + #t~string32.offset := 0];call #t~string34.base, #t~string34.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string34.base,#t~string34.offset := 10];#memory_int := #memory_int[#t~string34.base,1 + #t~string34.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(21);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(30);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(9);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1596#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10;assume { :begin_inline_select_helpers } true; 1597#L65 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1606#L58 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;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; 1740#L73 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~10 := main_#t~ret74;havoc main_#t~ret74; 1706#L991 assume 0 != main_~tmp~10;assume { :begin_inline_setup } true; 1668#L967 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1669#L875 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1625#L202-3 [2018-11-18 17:13:18,419 INFO L796 eck$LassoCheckResult]: Loop: 1625#L202-3 assume true; 1626#L202-1 assume !false; 1631#L203 assume test_~splverifierCounter~0 < 4; 1703#L204 test_~tmp~0 := test_#t~nondet11;havoc test_#t~nondet11; 1704#L212 assume !(0 != test_~tmp~0); 1721#L212-2 test_~tmp___0~0 := test_#t~nondet12;havoc test_#t~nondet12; 1788#L222 assume !(0 != test_~tmp___0~0); 1776#L222-2 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 1765#L232 assume 0 != test_~tmp___2~0; 1755#L238-2 assume { :begin_inline_timeShift } true; 1745#L271 assume !(0 != ~pumpRunning~0); 1746#L271-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1758#L355 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret16, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 1607#L329-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1608#L303-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret35, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 1620#L169-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 1621#L174-3 isHighWaterLevel_#t~ret35 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret35;havoc isHighWaterLevel_#t~ret35; 1692#L457-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1699#L457-11 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1774#L463-3 processEnvironment__wrappee__highWaterSensor_#t~ret15 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret15;havoc processEnvironment__wrappee__highWaterSensor_#t~ret15; 1589#L307-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1590#L295-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1693#L303-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1609#L329-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1605#L355-1 assume { :end_inline_processEnvironment } true; 1797#L278-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret72, __utac_acc__Specification2_spec__2_#t~ret73, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;assume { :begin_inline_isMethaneLevelCritical } true;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; 1800#L129-1 __utac_acc__Specification2_spec__2_#t~ret72 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret72;havoc __utac_acc__Specification2_spec__2_#t~ret72; 1722#L886 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 1680#L886-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1727#L288 assume { :end_inline_timeShift } true; 1625#L202-3 [2018-11-18 17:13:18,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:13:18,419 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 17:13:18,420 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:13:18,420 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:13:18,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:18,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:13:18,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:18,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:13:18,453 INFO L82 PathProgramCache]: Analyzing trace with hash -309506451, now seen corresponding path program 1 times [2018-11-18 17:13:18,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:13:18,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:13:18,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:18,454 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:13:18,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:18,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:18,465 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:13:18,466 INFO L82 PathProgramCache]: Analyzing trace with hash 2019603350, now seen corresponding path program 1 times [2018-11-18 17:13:18,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:13:18,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:13:18,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:18,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:13:18,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:13:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:18,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:13:18,641 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2018-11-18 17:14:35,611 WARN L180 SmtUtils]: Spent 1.28 m on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 17:15:22,254 WARN L180 SmtUtils]: Spent 46.64 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 17:15:22,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 05:15:22 BoogieIcfgContainer [2018-11-18 17:15:22,330 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 17:15:22,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:15:22,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:15:22,331 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:15:22,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:13:17" (3/4) ... [2018-11-18 17:15:22,333 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 17:15:22,377 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d67af394-d6d5-40aa-8340-d20972d4edfc/bin-2019/uautomizer/witness.graphml [2018-11-18 17:15:22,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:15:22,378 INFO L168 Benchmark]: Toolchain (without parser) took 126114.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 34.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:15:22,378 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:15:22,378 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:15:22,379 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.24 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 17:15:22,379 INFO L168 Benchmark]: Boogie Preprocessor took 38.62 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 17:15:22,379 INFO L168 Benchmark]: RCFGBuilder took 726.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.0 MB). Peak memory consumption was 103.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:15:22,379 INFO L168 Benchmark]: BuchiAutomizer took 124899.83 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -110.8 MB). Peak memory consumption was 289.0 MB. Max. memory is 11.5 GB. [2018-11-18 17:15:22,380 INFO L168 Benchmark]: Witness Printer took 46.73 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: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 11.5 GB. [2018-11-18 17:15:22,381 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 356.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.62 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 726.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.0 MB). Peak memory consumption was 103.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 124899.83 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 59.8 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -110.8 MB). Peak memory consumption was 289.0 MB. Max. memory is 11.5 GB. * Witness Printer took 46.73 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: 6.1 MB). Peak memory consumption was 6.1 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 334 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 124.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 124.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 261 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 334 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 643 SDtfs, 1629 SDslu, 1544 SDs, 0 SdLazy, 85 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 202]: 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, "i > 0 && i <= this->argsCount"=0, ")"=27, "i > 0 && i <= this->argsCount"=16, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=39, "libacc.c"=15, methaneLevelCritical=0, "OK"=28, tmp=0, tmp___0=0, "libacc.c"=0, "__utac__get_this_argtype"=0, "libacc.c"=0, "__utac__get_this_argtype"=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@301237bc=0, "libacc.c"=35, "i > 0 && i <= this->argsCount"=0, "Env(Water:%i"=33, tmp___1=0, ",Meth:"=0, "OK"=0, "CRIT"=0, "Env(Water:%i"=0, "Pump(System:"=26, "On"=20, cleanupTimeShifts=4, tmp=0, tmp=0, "\n"=17, tmp=1, NULL=0, systemActive=1, waterLevel=1, "__utac__get_this_argtype"=40, ") "=0, "Off"=0, "i > 0 && i <= this->argsCount"=12, \result=0, retValue_acc=0, ")"=0, tmp___0=0, "__utac__get_this_arg"=11, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_arg"=0, "libacc.c"=0, ",Meth:"=31, \result=1, retValue_acc=0, head=0, pumpRunning=0, "__utac__get_this_arg"=14, \result=0, retValue_acc=1, "__utac__get_this_argtype"=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76c13b65=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@af957dd=0, "\n"=0, \result=1, "i > 0 && i <= this->argsCount"=37, "On"=24, tmp=1, retValue_acc=1, tmp___0=0, tmp___2=172, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@451d15ce=0, "Off"=19, ",Pump:"=22, splverifierCounter=0, "libacc.c"=0, methAndRunningLastTime=0, \result=0, "CRIT"=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c91f224=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f0d5570=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22c29bbb=172, "libacc.c"=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@443f7710=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32ac51d2=0, tmp=0, head=0, ",Pump:"=0, "On"=0, "Off"=23, "Off"=0, "Pump(System:"=0, ") "=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a116ea8=0, "On"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ba2cfc=0, "libacc.c"=38, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 202]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L138] FCALL "Env(Water:%i" [L139] FCALL ",Meth:" [L143] FCALL "CRIT" [L147] FCALL "OK" [L151] FCALL ")" [L417] FCALL "Pump(System:" [L421] FCALL "On" [L425] FCALL "Off" [L429] FCALL ",Pump:" [L433] FCALL "On" [L437] FCALL "Off" [L441] FCALL ") " [L443] FCALL "\n" [L799] FCALL "i > 0 && i <= this->argsCount" [L799] FCALL "libacc.c" [L800] FCALL "__utac__get_this_arg" [L806] FCALL "i > 0 && i <= this->argsCount" [L806] FCALL "libacc.c" [L807] FCALL "__utac__get_this_arg" [L845] FCALL "i > 0 && i <= this->argsCount" [L845] FCALL "libacc.c" [L846] FCALL "__utac__get_this_argtype" [L852] FCALL "i > 0 && i <= this->argsCount" [L852] FCALL "libacc.c" [L853] FCALL "__utac__get_this_argtype" [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L263] int pumpRunning = 0; [L264] int systemActive = 1; [L869] int methAndRunningLastTime ; [L908] int cleanupTimeShifts = 4; [L671] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L982] int retValue_acc ; [L983] int tmp ; [L987] FCALL select_helpers() [L988] FCALL select_features() [L989] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] RET return (retValue_acc); [L989] EXPR valid_product() [L989] tmp = valid_product() [L991] COND TRUE \read(tmp) [L993] FCALL setup() [L994] CALL runTest() [L975] CALL __utac_acc__Specification2_spec__1() [L874] RET methAndRunningLastTime = 0 [L975] __utac_acc__Specification2_spec__1() [L976] CALL test() [L193] int splverifierCounter ; [L194] int tmp ; [L195] int tmp___0 ; [L196] int tmp___1 ; [L197] int tmp___2 ; [L200] splverifierCounter = 0 Loop: [L202] COND TRUE 1 [L204] COND TRUE splverifierCounter < 4 [L210] tmp = __VERIFIER_nondet_int() [L212] COND FALSE !(\read(tmp)) [L220] tmp___0 = __VERIFIER_nondet_int() [L222] COND FALSE !(\read(tmp___0)) [L230] tmp___2 = __VERIFIER_nondet_int() [L232] COND TRUE \read(tmp___2) [L247] CALL timeShift() [L271] COND FALSE !(\read(pumpRunning)) [L278] COND TRUE \read(systemActive) [L280] CALL processEnvironment() [L352] int tmp ; [L355] COND FALSE !(\read(pumpRunning)) [L370] CALL processEnvironment__wrappee__lowWaterSensor() [L326] int tmp ; [L329] COND FALSE !(\read(pumpRunning)) [L344] CALL processEnvironment__wrappee__highWaterSensor() [L300] int tmp ; [L303] COND TRUE ! pumpRunning [L305] CALL, EXPR isHighWaterLevel() [L449] int retValue_acc ; [L450] int tmp ; [L451] int tmp___0 ; [L455] CALL, EXPR isHighWaterSensorDry() [L166] int retValue_acc ; [L169] COND TRUE waterLevel < 2 [L170] retValue_acc = 1 [L171] RET return (retValue_acc); [L455] EXPR isHighWaterSensorDry() [L455] tmp = isHighWaterSensorDry() [L457] COND TRUE \read(tmp) [L458] tmp___0 = 0 [L462] retValue_acc = tmp___0 [L463] RET return (retValue_acc); [L305] EXPR isHighWaterLevel() [L305] tmp = isHighWaterLevel() [L307] COND FALSE !(\read(tmp)) [L313] RET, FCALL processEnvironment__wrappee__base() [L344] RET processEnvironment__wrappee__highWaterSensor() [L370] RET processEnvironment__wrappee__lowWaterSensor() [L280] processEnvironment() [L286] CALL __utac_acc__Specification2_spec__2() [L879] int tmp ; [L880] int tmp___0 ; [L884] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] RET return (retValue_acc); [L884] EXPR isMethaneLevelCritical() [L884] tmp = isMethaneLevelCritical() [L886] COND FALSE !(\read(tmp)) [L902] RET methAndRunningLastTime = 0 [L286] RET __utac_acc__Specification2_spec__2() [L247] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...