./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product18_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_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product18_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/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 414418e2da6d7a65cf7274af502c2c1949ddb3af ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:56:12,509 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:56:12,510 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:56:12,516 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:56:12,516 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:56:12,516 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:56:12,517 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:56:12,518 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:56:12,519 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:56:12,519 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:56:12,520 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:56:12,520 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:56:12,521 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:56:12,521 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:56:12,522 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:56:12,522 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:56:12,523 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:56:12,524 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:56:12,525 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:56:12,526 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:56:12,526 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:56:12,527 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:56:12,529 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:56:12,529 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:56:12,529 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:56:12,530 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:56:12,530 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:56:12,531 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:56:12,531 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:56:12,532 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:56:12,532 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:56:12,532 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:56:12,532 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:56:12,532 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:56:12,533 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:56:12,533 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:56:12,533 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:56:12,542 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:56:12,542 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:56:12,543 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:56:12,543 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:56:12,543 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:56:12,543 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:56:12,543 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:56:12,544 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:56:12,544 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:56:12,544 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:56:12,544 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:56:12,544 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:56:12,544 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:56:12,544 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:56:12,544 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:56:12,545 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:56:12,545 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:56:12,545 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:56:12,545 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:56:12,545 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:56:12,545 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:56:12,545 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:56:12,545 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:56:12,546 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:56:12,546 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:56:12,546 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:56:12,546 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:56:12,546 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:56:12,546 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:56:12,546 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:56:12,546 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:56:12,547 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:56:12,547 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_90651585-9461-4a4c-8ad5-db23f00081ca/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 -> 414418e2da6d7a65cf7274af502c2c1949ddb3af [2018-11-18 16:56:12,569 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:56:12,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:56:12,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:56:12,582 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:56:12,582 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:56:12,583 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product18_false-unreach-call_false-termination.cil.c [2018-11-18 16:56:12,623 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/data/0fae013b5/dce238bc04944adabe6ac98a45790d49/FLAGc155e50eb [2018-11-18 16:56:13,042 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:56:13,043 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/sv-benchmarks/c/product-lines/minepump_spec3_product18_false-unreach-call_false-termination.cil.c [2018-11-18 16:56:13,049 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/data/0fae013b5/dce238bc04944adabe6ac98a45790d49/FLAGc155e50eb [2018-11-18 16:56:13,057 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/data/0fae013b5/dce238bc04944adabe6ac98a45790d49 [2018-11-18 16:56:13,060 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:56:13,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:56:13,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:56:13,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:56:13,065 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:56:13,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,068 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 04:56:13, skipping insertion in model container [2018-11-18 16:56:13,068 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:56:13,108 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:56:13,299 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:56:13,307 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:56:13,414 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:56:13,434 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:56:13,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13 WrapperNode [2018-11-18 16:56:13,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:56:13,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:56:13,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:56:13,436 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:56:13,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:56:13,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:56:13,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:56:13,473 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:56:13,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (1/1) ... [2018-11-18 16:56:13,492 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:56:13,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:56:13,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:56:13,492 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:56:13,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/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 16:56:13,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:56:13,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:56:13,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:56:13,978 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:56:13,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:56:13 BoogieIcfgContainer [2018-11-18 16:56:13,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:56:13,979 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:56:13,979 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:56:13,981 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:56:13,985 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:56:13,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:56:13" (1/3) ... [2018-11-18 16:56:13,986 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c86dc5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:56:13, skipping insertion in model container [2018-11-18 16:56:13,986 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:56:13,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:56:13" (2/3) ... [2018-11-18 16:56:13,986 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c86dc5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:56:13, skipping insertion in model container [2018-11-18 16:56:13,986 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:56:13,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:56:13" (3/3) ... [2018-11-18 16:56:13,988 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product18_false-unreach-call_false-termination.cil.c [2018-11-18 16:56:14,026 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:56:14,026 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:56:14,026 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:56:14,026 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:56:14,026 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:56:14,027 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:56:14,027 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:56:14,027 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:56:14,027 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:56:14,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2018-11-18 16:56:14,053 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2018-11-18 16:56:14,054 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:56:14,054 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:56:14,059 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:56:14,059 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 16:56:14,059 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:56:14,059 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 111 states. [2018-11-18 16:56:14,062 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2018-11-18 16:56:14,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:56:14,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:56:14,063 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:56:14,063 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 16:56:14,066 INFO L794 eck$LassoCheckResult]: Stem: 78#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~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(21);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(30);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(9);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(30);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(9);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(25);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(13);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(7);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 44];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 80];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 117];#memory_int := #memory_int[#t~string55.base,3 + #t~string55.offset := 109];#memory_int := #memory_int[#t~string55.base,4 + #t~string55.offset := 112];#memory_int := #memory_int[#t~string55.base,5 + #t~string55.offset := 58];#memory_int := #memory_int[#t~string55.base,6 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 41];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 32];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 10];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 8#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; 113#L858true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 57#L851true 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; 5#L866true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 59#L130true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 19#L103true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 63#L779-3true [2018-11-18 16:56:14,067 INFO L796 eck$LassoCheckResult]: Loop: 63#L779-3true assume true; 75#L779-1true assume !false; 35#L780true assume test_~splverifierCounter~0 < 4; 96#L781true test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 7#L789true assume !(0 != test_~tmp~6); 105#L789-2true test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 55#L799true assume !(0 != test_~tmp___0~1); 44#L799-2true test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 76#L809true assume !(0 != test_~tmp___2~0);test_~tmp___1~0 := test_#t~nondet68;havoc test_#t~nondet68; 90#L817true assume 0 != test_~tmp___1~0; 93#L817-2true assume { :begin_inline_timeShift } true; 88#L616true assume !(0 != ~pumpRunning~0); 91#L616-2true assume !(0 != ~systemActive~0); 33#L623-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 107#L192true __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 65#L881true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 52#L887-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 68#L633true assume { :end_inline_timeShift } true; 63#L779-3true [2018-11-18 16:56:14,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:14,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 16:56:14,073 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:56:14,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:56:14,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:14,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:14,213 INFO L82 PathProgramCache]: Analyzing trace with hash 835490406, now seen corresponding path program 1 times [2018-11-18 16:56:14,213 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:56:14,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:56:14,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:14,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 2018131754, now seen corresponding path program 1 times [2018-11-18 16:56:14,225 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:56:14,226 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:56:14,226 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:14,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:14,353 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 16:56:14,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:56:14,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:56:14,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:56:14,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:56:14,425 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 6 states. [2018-11-18 16:56:14,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:56:14,530 INFO L93 Difference]: Finished difference Result 108 states and 136 transitions. [2018-11-18 16:56:14,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 16:56:14,532 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 136 transitions. [2018-11-18 16:56:14,534 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2018-11-18 16:56:14,537 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 98 states and 126 transitions. [2018-11-18 16:56:14,538 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2018-11-18 16:56:14,538 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 98 [2018-11-18 16:56:14,539 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 126 transitions. [2018-11-18 16:56:14,539 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:56:14,539 INFO L705 BuchiCegarLoop]: Abstraction has 98 states and 126 transitions. [2018-11-18 16:56:14,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states and 126 transitions. [2018-11-18 16:56:14,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2018-11-18 16:56:14,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2018-11-18 16:56:14,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 126 transitions. [2018-11-18 16:56:14,566 INFO L728 BuchiCegarLoop]: Abstraction has 98 states and 126 transitions. [2018-11-18 16:56:14,566 INFO L608 BuchiCegarLoop]: Abstraction has 98 states and 126 transitions. [2018-11-18 16:56:14,566 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:56:14,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 126 transitions. [2018-11-18 16:56:14,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2018-11-18 16:56:14,567 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:56:14,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:56:14,568 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:56:14,568 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:56:14,568 INFO L794 eck$LassoCheckResult]: Stem: 324#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~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(21);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(30);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(9);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(30);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(9);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(25);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(13);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(7);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 44];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 80];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 117];#memory_int := #memory_int[#t~string55.base,3 + #t~string55.offset := 109];#memory_int := #memory_int[#t~string55.base,4 + #t~string55.offset := 112];#memory_int := #memory_int[#t~string55.base,5 + #t~string55.offset := 58];#memory_int := #memory_int[#t~string55.base,6 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 41];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 32];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 10];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 242#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; 243#L858 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 312#L851 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; 237#L866 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 238#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 260#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 261#L779-3 [2018-11-18 16:56:14,568 INFO L796 eck$LassoCheckResult]: Loop: 261#L779-3 assume true; 315#L779-1 assume !false; 282#L780 assume test_~splverifierCounter~0 < 4; 283#L781 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 239#L789 assume !(0 != test_~tmp~6); 241#L789-2 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 309#L799 assume !(0 != test_~tmp___0~1); 297#L799-2 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 298#L809 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 320#L765 assume { :end_inline_startSystem } true; 325#L817-2 assume { :begin_inline_timeShift } true; 330#L616 assume !(0 != ~pumpRunning~0); 304#L616-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 271#L648 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 270#L640-1 assume { :end_inline_processEnvironment__wrappee__base } true; 265#L648-1 assume { :end_inline_processEnvironment } true; 273#L623-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 279#L192 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 316#L881 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 305#L887-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 307#L633 assume { :end_inline_timeShift } true; 261#L779-3 [2018-11-18 16:56:14,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:14,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 16:56:14,569 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:56:14,569 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:56:14,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:14,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:14,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1679307831, now seen corresponding path program 1 times [2018-11-18 16:56:14,607 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:56:14,607 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:56:14,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,608 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:56:14,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:14,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1227638651, now seen corresponding path program 1 times [2018-11-18 16:56:14,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:56:14,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:56:14,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:14,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:56:14,686 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 16:56:14,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:56:14,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:56:14,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 16:56:14,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:56:14,798 INFO L87 Difference]: Start difference. First operand 98 states and 126 transitions. cyclomatic complexity: 30 Second operand 5 states. [2018-11-18 16:56:14,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:56:14,893 INFO L93 Difference]: Finished difference Result 350 states and 454 transitions. [2018-11-18 16:56:14,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:56:14,894 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 350 states and 454 transitions. [2018-11-18 16:56:14,898 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 251 [2018-11-18 16:56:14,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 350 states to 350 states and 454 transitions. [2018-11-18 16:56:14,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 350 [2018-11-18 16:56:14,902 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 350 [2018-11-18 16:56:14,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 350 states and 454 transitions. [2018-11-18 16:56:14,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:56:14,904 INFO L705 BuchiCegarLoop]: Abstraction has 350 states and 454 transitions. [2018-11-18 16:56:14,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states and 454 transitions. [2018-11-18 16:56:14,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 189. [2018-11-18 16:56:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-11-18 16:56:14,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 241 transitions. [2018-11-18 16:56:14,915 INFO L728 BuchiCegarLoop]: Abstraction has 189 states and 241 transitions. [2018-11-18 16:56:14,915 INFO L608 BuchiCegarLoop]: Abstraction has 189 states and 241 transitions. [2018-11-18 16:56:14,915 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:56:14,915 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states and 241 transitions. [2018-11-18 16:56:14,917 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2018-11-18 16:56:14,917 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:56:14,917 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:56:14,918 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:56:14,918 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 16:56:14,918 INFO L794 eck$LassoCheckResult]: Stem: 798#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~string29.base, #t~string29.offset := #Ultimate.alloc(30);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(9);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(21);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(30);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(9);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(21);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(30);call #t~string39.base, #t~string39.offset := #Ultimate.alloc(9);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(25);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(30);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(9);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(25);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(13);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(7);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 44];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 80];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 117];#memory_int := #memory_int[#t~string55.base,3 + #t~string55.offset := 109];#memory_int := #memory_int[#t~string55.base,4 + #t~string55.offset := 112];#memory_int := #memory_int[#t~string55.base,5 + #t~string55.offset := 58];#memory_int := #memory_int[#t~string55.base,6 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 79];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 110];#memory_int := #memory_int[#t~string57.base,2 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string59.base,#t~string59.offset := 79];#memory_int := #memory_int[#t~string59.base,1 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,2 + #t~string59.offset := 102];#memory_int := #memory_int[#t~string59.base,3 + #t~string59.offset := 0];call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 41];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 32];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 10];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 0];~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 708#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; 709#L858 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 782#L851 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; 703#L866 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 704#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 728#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 729#L779-3 [2018-11-18 16:56:14,918 INFO L796 eck$LassoCheckResult]: Loop: 729#L779-3 assume true; 866#L779-1 assume !false; 864#L780 assume test_~splverifierCounter~0 < 4; 865#L781 test_~tmp~6 := test_#t~nondet65;havoc test_#t~nondet65; 705#L789 assume !(0 != test_~tmp~6); 707#L789-2 test_~tmp___0~1 := test_#t~nondet66;havoc test_#t~nondet66; 779#L799 assume !(0 != test_~tmp___0~1); 763#L799-2 test_~tmp___2~0 := test_#t~nondet67;havoc test_#t~nondet67; 764#L809 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 794#L765 assume { :end_inline_startSystem } true; 883#L817-2 assume { :begin_inline_timeShift } true; 880#L616 assume !(0 != ~pumpRunning~0); 877#L616-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 874#L648 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 872#L640-1 assume { :end_inline_processEnvironment__wrappee__base } true; 870#L648-1 assume { :end_inline_processEnvironment } true; 869#L623-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret70, __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~1;havoc isMethaneLevelCritical_~retValue_acc~1;isMethaneLevelCritical_~retValue_acc~1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~1; 817#L192 __utac_acc__Specification3_spec__1_#t~ret70 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret70;havoc __utac_acc__Specification3_spec__1_#t~ret70; 818#L881 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 761#L224 __utac_acc__Specification3_spec__1_#t~ret71 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 762#L887 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 868#L887-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 867#L633 assume { :end_inline_timeShift } true; 729#L779-3 [2018-11-18 16:56:14,918 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:14,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 16:56:14,918 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:56:14,919 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:56:14,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:14,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:14,951 INFO L82 PathProgramCache]: Analyzing trace with hash 1094129116, now seen corresponding path program 1 times [2018-11-18 16:56:14,951 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:56:14,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:56:14,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,953 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:56:14,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:56:14,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1356514200, now seen corresponding path program 1 times [2018-11-18 16:56:14,962 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:56:14,962 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:56:14,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:56:14,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:56:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:56:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:57:09,536 WARN L180 SmtUtils]: Spent 54.45 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 16:57:38,772 WARN L180 SmtUtils]: Spent 29.24 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 16:57:38,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:57:38 BoogieIcfgContainer [2018-11-18 16:57:38,843 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:57:38,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:57:38,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:57:38,843 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:57:38,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:56:13" (3/4) ... [2018-11-18 16:57:38,846 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 16:57:38,887 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_90651585-9461-4a4c-8ad5-db23f00081ca/bin-2019/uautomizer/witness.graphml [2018-11-18 16:57:38,887 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:57:38,888 INFO L168 Benchmark]: Toolchain (without parser) took 85827.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.7 MB). Free memory was 956.6 MB in the beginning and 926.1 MB in the end (delta: 30.5 MB). Peak memory consumption was 185.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:38,889 INFO L168 Benchmark]: CDTParser took 0.15 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 16:57:38,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 373.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:38,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.94 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:38,890 INFO L168 Benchmark]: Boogie Preprocessor took 19.18 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:38,890 INFO L168 Benchmark]: RCFGBuilder took 486.63 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:38,890 INFO L168 Benchmark]: BuchiAutomizer took 84864.06 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 30.9 MB). Free memory was 1.0 GB in the beginning and 932.1 MB in the end (delta: 111.2 MB). Peak memory consumption was 194.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:38,890 INFO L168 Benchmark]: Witness Printer took 44.17 ms. Allocated memory is still 1.2 GB. Free memory was 932.1 MB in the beginning and 926.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:57:38,892 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 373.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -158.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 36.94 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.18 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 486.63 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: 66.5 MB). Peak memory consumption was 66.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 84864.06 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 30.9 MB). Free memory was 1.0 GB in the beginning and 932.1 MB in the end (delta: 111.2 MB). Peak memory consumption was 194.5 MB. Max. memory is 11.5 GB. * Witness Printer took 44.17 ms. Allocated memory is still 1.2 GB. Free memory was 932.1 MB in the beginning and 926.1 MB in the end (delta: 6.0 MB). Peak memory consumption was 6.0 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 189 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 84.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 84.4s. 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, 161 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 189 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 312 SDtfs, 845 SDslu, 571 SDs, 0 SdLazy, 53 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 779]: 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 {retValue_acc=0, NULL=0, ")"=34, ",Pump:"=14, "\n"=0, retValue_acc=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, ") "=0, "\n"=40, "i > 0 && i <= this->argsCount"=24, "libacc.c"=0, "__utac__get_this_argtype"=0, methaneLevelCritical=0, "OK"=35, retValue_acc=1, "i > 0 && i <= this->argsCount"=20, "libacc.c"=27, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c7e1a8d=0, "Env(Water:%i"=37, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@53a6755a=0, tmp___1=0, "i > 0 && i <= this->argsCount"=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d687c54=0, ",Meth:"=0, "OK"=0, "CRIT"=0, "Env(Water:%i"=0, "libacc.c"=23, cleanupTimeShifts=4, "__utac__get_this_arg"=26, "__utac__get_this_arg"=29, "libacc.c"=19, "Off"=15, tmp=0, tmp___0=1, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a8dd31c=0, NULL=0, systemActive=1, waterLevel=1, \result=1, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "i > 0 && i <= this->argsCount"=0, "Pump(System:"=0, ")"=0, retValue_acc=1, ",Pump:"=0, "On"=0, "Off"=0, ",Meth:"=36, \result=1, head=0, pumpRunning=0, tmp=1, "Pump(System:"=17, "On"=11, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a0f1a49=0, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@568468e1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36ae34fc=157, "On"=0, "__utac__get_this_arg"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ede1191=0, ") "=39, tmp___2=157, "libacc.c"=31, tmp___0=0, splverifierCounter=0, "Off"=0, \result=0, "CRIT"=8, "Off"=12, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@652e3806=0, head=0, tmp=0, "i > 0 && i <= this->argsCount"=28, "libacc.c"=0, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=18, "__utac__get_this_argtype"=22, "On"=16} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 779]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L201] FCALL "Env(Water:%i" [L202] FCALL ",Meth:" [L206] FCALL "CRIT" [L210] FCALL "OK" [L214] FCALL ")" [L535] FCALL "i > 0 && i <= this->argsCount" [L535] FCALL "libacc.c" [L536] FCALL "__utac__get_this_arg" [L542] FCALL "i > 0 && i <= this->argsCount" [L542] FCALL "libacc.c" [L543] FCALL "__utac__get_this_arg" [L581] FCALL "i > 0 && i <= this->argsCount" [L581] FCALL "libacc.c" [L582] FCALL "__utac__get_this_argtype" [L588] FCALL "i > 0 && i <= this->argsCount" [L588] FCALL "libacc.c" [L589] FCALL "__utac__get_this_argtype" [L710] FCALL "Pump(System:" [L714] FCALL "On" [L718] FCALL "Off" [L722] FCALL ",Pump:" [L726] FCALL "On" [L730] FCALL "Off" [L734] FCALL ") " [L736] FCALL "\n" [L40] int cleanupTimeShifts = 4; [L149] int waterLevel = 1; [L150] int methaneLevelCritical = 0; [L608] int pumpRunning = 0; [L609] int systemActive = 1; [L407] 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() [L862] int retValue_acc ; [L865] retValue_acc = 1 [L866] 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() [L770] int splverifierCounter ; [L771] int tmp ; [L772] int tmp___0 ; [L773] int tmp___1 ; [L774] int tmp___2 ; [L777] splverifierCounter = 0 Loop: [L779] COND TRUE 1 [L781] COND TRUE splverifierCounter < 4 [L787] tmp = __VERIFIER_nondet_int() [L789] COND FALSE !(\read(tmp)) [L797] tmp___0 = __VERIFIER_nondet_int() [L799] COND FALSE !(\read(tmp___0)) [L807] tmp___2 = __VERIFIER_nondet_int() [L809] COND TRUE \read(tmp___2) [L811] CALL startSystem() [L764] RET systemActive = 1 [L811] startSystem() [L824] CALL timeShift() [L616] COND FALSE !(\read(pumpRunning)) [L623] COND TRUE \read(systemActive) [L625] CALL processEnvironment() [L645] int tmp ; [L648] COND FALSE !(\read(pumpRunning)) [L663] RET, FCALL processEnvironment__wrappee__base() [L625] processEnvironment() [L631] CALL __utac_acc__Specification3_spec__1() [L873] int tmp ; [L874] int tmp___0 ; [L875] int tmp___1 ; [L879] CALL, EXPR isMethaneLevelCritical() [L188] int retValue_acc ; [L191] retValue_acc = methaneLevelCritical [L192] RET return (retValue_acc); [L879] EXPR isMethaneLevelCritical() [L879] tmp = isMethaneLevelCritical() [L881] COND FALSE !(\read(tmp)) [L885] CALL, EXPR getWaterLevel() [L220] int retValue_acc ; [L223] retValue_acc = waterLevel [L224] RET return (retValue_acc); [L885] EXPR getWaterLevel() [L885] tmp___0 = getWaterLevel() [L887] COND FALSE, RET !(tmp___0 == 2) [L631] RET __utac_acc__Specification3_spec__1() [L824] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...