./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product38_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_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product38_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/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 a0c13a298b8ef5fea6639223509104e0f4da0801 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 12:10:19,472 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:10:19,473 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:10:19,479 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:10:19,480 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:10:19,480 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:10:19,481 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:10:19,482 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:10:19,483 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:10:19,484 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:10:19,484 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:10:19,485 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:10:19,485 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:10:19,486 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:10:19,486 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:10:19,487 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:10:19,487 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:10:19,488 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:10:19,490 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:10:19,490 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:10:19,491 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:10:19,492 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:10:19,493 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:10:19,494 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:10:19,494 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:10:19,494 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:10:19,495 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:10:19,495 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:10:19,496 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:10:19,496 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:10:19,497 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:10:19,497 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:10:19,497 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:10:19,497 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:10:19,498 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:10:19,498 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:10:19,499 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 12:10:19,507 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:10:19,507 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:10:19,508 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:10:19,508 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:10:19,509 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:10:19,509 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 12:10:19,509 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 12:10:19,509 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 12:10:19,509 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 12:10:19,509 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 12:10:19,509 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 12:10:19,510 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:10:19,510 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:10:19,510 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:10:19,510 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:10:19,510 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:10:19,510 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:10:19,510 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 12:10:19,510 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 12:10:19,511 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 12:10:19,511 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:10:19,511 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:10:19,511 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 12:10:19,511 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:10:19,511 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 12:10:19,511 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:10:19,512 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:10:19,512 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 12:10:19,512 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:10:19,512 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:10:19,512 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 12:10:19,513 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 12:10:19,513 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_a0b725b0-db03-4469-90ad-bd9307606c03/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 -> a0c13a298b8ef5fea6639223509104e0f4da0801 [2018-11-18 12:10:19,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:10:19,544 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:10:19,547 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:10:19,548 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:10:19,548 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:10:19,549 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product38_false-unreach-call_false-termination.cil.c [2018-11-18 12:10:19,593 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/data/113448c3c/28ffea2d9f094f06a2999dc69e25d6aa/FLAG5fae6ba54 [2018-11-18 12:10:19,911 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:10:19,912 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/sv-benchmarks/c/product-lines/minepump_spec1_product38_false-unreach-call_false-termination.cil.c [2018-11-18 12:10:19,917 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/data/113448c3c/28ffea2d9f094f06a2999dc69e25d6aa/FLAG5fae6ba54 [2018-11-18 12:10:19,926 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/data/113448c3c/28ffea2d9f094f06a2999dc69e25d6aa [2018-11-18 12:10:19,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:10:19,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 12:10:19,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:10:19,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:10:19,931 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:10:19,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:10:19" (1/1) ... [2018-11-18 12:10:19,933 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 12:10:19, skipping insertion in model container [2018-11-18 12:10:19,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:10:19" (1/1) ... [2018-11-18 12:10:19,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:10:19,968 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:10:20,150 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:10:20,159 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:10:20,261 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:10:20,283 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:10:20,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20 WrapperNode [2018-11-18 12:10:20,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:10:20,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 12:10:20,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 12:10:20,285 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 12:10:20,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (1/1) ... [2018-11-18 12:10:20,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (1/1) ... [2018-11-18 12:10:20,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 12:10:20,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:10:20,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:10:20,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:10:20,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (1/1) ... [2018-11-18 12:10:20,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (1/1) ... [2018-11-18 12:10:20,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (1/1) ... [2018-11-18 12:10:20,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (1/1) ... [2018-11-18 12:10:20,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (1/1) ... [2018-11-18 12:10:20,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (1/1) ... [2018-11-18 12:10:20,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (1/1) ... [2018-11-18 12:10:20,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:10:20,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:10:20,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:10:20,367 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:10:20,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/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 12:10:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 12:10:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:10:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:10:20,941 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:10:20,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:10:20 BoogieIcfgContainer [2018-11-18 12:10:20,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:10:20,942 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 12:10:20,942 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 12:10:20,945 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 12:10:20,946 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:10:20,946 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 12:10:19" (1/3) ... [2018-11-18 12:10:20,947 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d69d15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:10:20, skipping insertion in model container [2018-11-18 12:10:20,947 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:10:20,947 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:10:20" (2/3) ... [2018-11-18 12:10:20,948 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d69d15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 12:10:20, skipping insertion in model container [2018-11-18 12:10:20,948 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 12:10:20,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:10:20" (3/3) ... [2018-11-18 12:10:20,949 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product38_false-unreach-call_false-termination.cil.c [2018-11-18 12:10:20,995 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:10:20,995 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 12:10:20,995 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 12:10:20,996 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 12:10:20,996 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:10:20,996 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:10:20,996 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 12:10:20,996 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:10:20,996 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 12:10:21,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states. [2018-11-18 12:10:21,035 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2018-11-18 12:10:21,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:10:21,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:10:21,041 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:10:21,041 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 12:10:21,041 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 12:10:21,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 159 states. [2018-11-18 12:10:21,047 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 103 [2018-11-18 12:10:21,047 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:10:21,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:10:21,047 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:10:21,048 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 12:10:21,052 INFO L794 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 10#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; 59#L166true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 158#L159true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 92#L174true main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 91#L130true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 27#L103true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 134#L776-3true [2018-11-18 12:10:21,053 INFO L796 eck$LassoCheckResult]: Loop: 134#L776-3true assume true; 130#L776-1true assume !false; 65#L777true assume test_~splverifierCounter~0 < 4; 9#L778true test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; 13#L786true assume !(0 != test_~tmp~8); 16#L786-2true test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 90#L796true assume !(0 != test_~tmp___0~2); 93#L796-2true test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 149#L806true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 152#L762true assume { :end_inline_startSystem } true; 156#L814-2true assume { :begin_inline_timeShift } true; 82#L587true assume !(0 != ~pumpRunning~0); 66#L587-2true assume !(0 != ~systemActive~0); 147#L594-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret2, __utac_acc__Specification1_spec__1_#t~ret3, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 140#L886-1true __utac_acc__Specification1_spec__1_#t~ret2 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret2;havoc __utac_acc__Specification1_spec__1_#t~ret2; 102#L190true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 101#L190-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 42#L604true assume { :end_inline_timeShift } true; 134#L776-3true [2018-11-18 12:10:21,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:10:21,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 12:10:21,062 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:10:21,063 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:10:21,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:10:21,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:10:21,210 INFO L82 PathProgramCache]: Analyzing trace with hash -421481101, now seen corresponding path program 1 times [2018-11-18 12:10:21,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:10:21,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:10:21,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:10:21,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:10:21,251 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 12:10:21,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:10:21,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:10:21,257 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:10:21,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:10:21,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:10:21,272 INFO L87 Difference]: Start difference. First operand 159 states. Second operand 3 states. [2018-11-18 12:10:21,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:10:21,321 INFO L93 Difference]: Finished difference Result 156 states and 203 transitions. [2018-11-18 12:10:21,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:10:21,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 156 states and 203 transitions. [2018-11-18 12:10:21,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2018-11-18 12:10:21,331 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 156 states to 146 states and 192 transitions. [2018-11-18 12:10:21,332 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 146 [2018-11-18 12:10:21,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 146 [2018-11-18 12:10:21,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 146 states and 192 transitions. [2018-11-18 12:10:21,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:10:21,334 INFO L705 BuchiCegarLoop]: Abstraction has 146 states and 192 transitions. [2018-11-18 12:10:21,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states and 192 transitions. [2018-11-18 12:10:21,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2018-11-18 12:10:21,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2018-11-18 12:10:21,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 192 transitions. [2018-11-18 12:10:21,357 INFO L728 BuchiCegarLoop]: Abstraction has 146 states and 192 transitions. [2018-11-18 12:10:21,357 INFO L608 BuchiCegarLoop]: Abstraction has 146 states and 192 transitions. [2018-11-18 12:10:21,357 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 12:10:21,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 146 states and 192 transitions. [2018-11-18 12:10:21,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 99 [2018-11-18 12:10:21,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:10:21,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:10:21,362 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:10:21,362 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 12:10:21,363 INFO L794 eck$LassoCheckResult]: Stem: 456#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 337#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; 338#L166 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 406#L159 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 437#L174 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 436#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 364#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 365#L776-3 [2018-11-18 12:10:21,367 INFO L796 eck$LassoCheckResult]: Loop: 365#L776-3 assume true; 458#L776-1 assume !false; 416#L777 assume test_~splverifierCounter~0 < 4; 335#L778 test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; 336#L786 assume !(0 != test_~tmp~8); 343#L786-2 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 350#L796 assume !(0 != test_~tmp___0~2); 435#L796-2 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 438#L806 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 466#L762 assume { :end_inline_startSystem } true; 469#L814-2 assume { :begin_inline_timeShift } true; 431#L587 assume !(0 != ~pumpRunning~0); 397#L587-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 417#L645 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 425#L619-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 455#L611-3 assume { :end_inline_processEnvironment__wrappee__base } true; 454#L619-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 398#L645-1 assume { :end_inline_processEnvironment } true; 399#L594-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret2, __utac_acc__Specification1_spec__1_#t~ret3, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 463#L886-1 __utac_acc__Specification1_spec__1_#t~ret2 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret2;havoc __utac_acc__Specification1_spec__1_#t~ret2; 443#L190 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 384#L190-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 381#L604 assume { :end_inline_timeShift } true; 365#L776-3 [2018-11-18 12:10:21,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:10:21,367 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 12:10:21,368 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:10:21,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:10:21,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:10:21,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:10:21,420 INFO L82 PathProgramCache]: Analyzing trace with hash 1322011863, now seen corresponding path program 1 times [2018-11-18 12:10:21,420 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:10:21,420 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:10:21,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,421 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:10:21,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:10:21,444 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 12:10:21,444 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:10:21,444 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 12:10:21,444 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:10:21,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:10:21,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:10:21,446 INFO L87 Difference]: Start difference. First operand 146 states and 192 transitions. cyclomatic complexity: 48 Second operand 3 states. [2018-11-18 12:10:21,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:10:21,547 INFO L93 Difference]: Finished difference Result 204 states and 257 transitions. [2018-11-18 12:10:21,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:10:21,548 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 204 states and 257 transitions. [2018-11-18 12:10:21,549 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2018-11-18 12:10:21,551 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 204 states to 204 states and 257 transitions. [2018-11-18 12:10:21,551 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 204 [2018-11-18 12:10:21,551 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 204 [2018-11-18 12:10:21,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 204 states and 257 transitions. [2018-11-18 12:10:21,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:10:21,552 INFO L705 BuchiCegarLoop]: Abstraction has 204 states and 257 transitions. [2018-11-18 12:10:21,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states and 257 transitions. [2018-11-18 12:10:21,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2018-11-18 12:10:21,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204 states. [2018-11-18 12:10:21,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 257 transitions. [2018-11-18 12:10:21,560 INFO L728 BuchiCegarLoop]: Abstraction has 204 states and 257 transitions. [2018-11-18 12:10:21,560 INFO L608 BuchiCegarLoop]: Abstraction has 204 states and 257 transitions. [2018-11-18 12:10:21,560 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 12:10:21,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 204 states and 257 transitions. [2018-11-18 12:10:21,562 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2018-11-18 12:10:21,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:10:21,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:10:21,563 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:10:21,563 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:10:21,563 INFO L794 eck$LassoCheckResult]: Stem: 822#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 694#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; 695#L166 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 764#L159 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 797#L174 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 796#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 723#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 724#L776-3 [2018-11-18 12:10:21,563 INFO L796 eck$LassoCheckResult]: Loop: 724#L776-3 assume true; 824#L776-1 assume !false; 773#L777 assume test_~splverifierCounter~0 < 4; 774#L778 test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; 699#L786 assume !(0 != test_~tmp~8); 701#L786-2 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 708#L796 assume !(0 != test_~tmp___0~2); 795#L796-2 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 798#L806 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 834#L762 assume { :end_inline_startSystem } true; 838#L814-2 assume { :begin_inline_timeShift } true; 790#L587 assume !(0 != ~pumpRunning~0); 775#L587-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 776#L645 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 785#L619-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 737#L926-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 738#L931-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 735#L747-3 assume !(0 != isHighWaterLevel_~tmp~7);isHighWaterLevel_~tmp___0~1 := 1; 736#L747-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 706#L753-1 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 707#L623-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 768#L611-2 assume { :end_inline_processEnvironment__wrappee__base } true; 818#L619-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 756#L645-1 assume { :end_inline_processEnvironment } true; 757#L594-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret2, __utac_acc__Specification1_spec__1_#t~ret3, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 830#L886-1 __utac_acc__Specification1_spec__1_#t~ret2 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret2;havoc __utac_acc__Specification1_spec__1_#t~ret2; 804#L190 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 742#L190-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 739#L604 assume { :end_inline_timeShift } true; 724#L776-3 [2018-11-18 12:10:21,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:10:21,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 12:10:21,564 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:10:21,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:10:21,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:10:21,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,602 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:10:21,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1163366285, now seen corresponding path program 1 times [2018-11-18 12:10:21,602 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:10:21,602 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:10:21,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,603 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:10:21,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:10:21,648 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 12:10:21,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:10:21,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 12:10:21,648 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 12:10:21,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:10:21,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:10:21,649 INFO L87 Difference]: Start difference. First operand 204 states and 257 transitions. cyclomatic complexity: 55 Second operand 5 states. [2018-11-18 12:10:21,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:10:21,756 INFO L93 Difference]: Finished difference Result 633 states and 785 transitions. [2018-11-18 12:10:21,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:10:21,757 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 633 states and 785 transitions. [2018-11-18 12:10:21,760 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 468 [2018-11-18 12:10:21,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 633 states to 633 states and 785 transitions. [2018-11-18 12:10:21,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 633 [2018-11-18 12:10:21,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 633 [2018-11-18 12:10:21,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 633 states and 785 transitions. [2018-11-18 12:10:21,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 12:10:21,768 INFO L705 BuchiCegarLoop]: Abstraction has 633 states and 785 transitions. [2018-11-18 12:10:21,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states and 785 transitions. [2018-11-18 12:10:21,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 222. [2018-11-18 12:10:21,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-18 12:10:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 275 transitions. [2018-11-18 12:10:21,780 INFO L728 BuchiCegarLoop]: Abstraction has 222 states and 275 transitions. [2018-11-18 12:10:21,780 INFO L608 BuchiCegarLoop]: Abstraction has 222 states and 275 transitions. [2018-11-18 12:10:21,780 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 12:10:21,780 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 275 transitions. [2018-11-18 12:10:21,781 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 156 [2018-11-18 12:10:21,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 12:10:21,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 12:10:21,782 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:10:21,782 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:10:21,782 INFO L794 eck$LassoCheckResult]: Stem: 1678#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(13);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 44];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 77];#memory_int := #memory_int[#t~string66.base,2 + #t~string66.offset := 101];#memory_int := #memory_int[#t~string66.base,3 + #t~string66.offset := 116];#memory_int := #memory_int[#t~string66.base,4 + #t~string66.offset := 104];#memory_int := #memory_int[#t~string66.base,5 + #t~string66.offset := 58];#memory_int := #memory_int[#t~string66.base,6 + #t~string66.offset := 0];call #t~string68.base, #t~string68.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string68.base,#t~string68.offset := 67];#memory_int := #memory_int[#t~string68.base,1 + #t~string68.offset := 82];#memory_int := #memory_int[#t~string68.base,2 + #t~string68.offset := 73];#memory_int := #memory_int[#t~string68.base,3 + #t~string68.offset := 84];#memory_int := #memory_int[#t~string68.base,4 + #t~string68.offset := 0];call #t~string70.base, #t~string70.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string70.base,#t~string70.offset := 79];#memory_int := #memory_int[#t~string70.base,1 + #t~string70.offset := 75];#memory_int := #memory_int[#t~string70.base,2 + #t~string70.offset := 0];call #t~string72.base, #t~string72.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string72.base,#t~string72.offset := 41];#memory_int := #memory_int[#t~string72.base,1 + #t~string72.offset := 0];~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 1544#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; 1545#L166 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1616#L159 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 1646#L174 main_#t~ret0 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1645#L130 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1573#L103 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet59, test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1574#L776-3 [2018-11-18 12:10:21,783 INFO L796 eck$LassoCheckResult]: Loop: 1574#L776-3 assume true; 1680#L776-1 assume !false; 1625#L777 assume test_~splverifierCounter~0 < 4; 1542#L778 test_~tmp~8 := test_#t~nondet59;havoc test_#t~nondet59; 1543#L786 assume !(0 != test_~tmp~8); 1550#L786-2 test_~tmp___0~2 := test_#t~nondet60;havoc test_#t~nondet60; 1556#L796 assume !(0 != test_~tmp___0~2); 1644#L796-2 test_~tmp___2~0 := test_#t~nondet61;havoc test_#t~nondet61; 1647#L806 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 1692#L762 assume { :end_inline_startSystem } true; 1695#L814-2 assume { :begin_inline_timeShift } true; 1640#L587 assume !(0 != ~pumpRunning~0); 1626#L587-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1627#L645 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1636#L619-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret58, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~11;havoc isHighWaterSensorDry_~retValue_acc~11; 1588#L926-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~11; 1589#L931-1 isHighWaterLevel_#t~ret58 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret58;havoc isHighWaterLevel_#t~ret58; 1585#L747-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 1587#L747-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1701#L753-1 processEnvironment__wrappee__highWaterSensor_#t~ret39 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret39;havoc processEnvironment__wrappee__highWaterSensor_#t~ret39; 1700#L623-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5);assume { :begin_inline_processEnvironment__wrappee__base } true; 1671#L611-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1672#L619-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1608#L645-1 assume { :end_inline_processEnvironment } true; 1609#L594-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret2, __utac_acc__Specification1_spec__1_#t~ret3, __utac_acc__Specification1_spec__1_~tmp~1, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~9;havoc isMethaneLevelCritical_~retValue_acc~9;isMethaneLevelCritical_~retValue_acc~9 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~9; 1687#L886-1 __utac_acc__Specification1_spec__1_#t~ret2 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~1 := __utac_acc__Specification1_spec__1_#t~ret2;havoc __utac_acc__Specification1_spec__1_#t~ret2; 1654#L190 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~1); 1595#L190-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1592#L604 assume { :end_inline_timeShift } true; 1574#L776-3 [2018-11-18 12:10:21,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:10:21,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 12:10:21,783 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:10:21,783 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:10:21,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:10:21,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,813 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:10:21,813 INFO L82 PathProgramCache]: Analyzing trace with hash 905200847, now seen corresponding path program 1 times [2018-11-18 12:10:21,813 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:10:21,813 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:10:21,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,814 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 12:10:21,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:10:21,825 INFO L82 PathProgramCache]: Analyzing trace with hash 779466123, now seen corresponding path program 1 times [2018-11-18 12:10:21,825 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:10:21,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:10:21,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,826 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:10:21,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:10:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 12:10:44,587 WARN L180 SmtUtils]: Spent 22.59 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 12:10:52,807 WARN L180 SmtUtils]: Spent 8.22 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 12:10:52,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 12:10:52 BoogieIcfgContainer [2018-11-18 12:10:52,871 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 12:10:52,871 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:10:52,871 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:10:52,871 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:10:52,872 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:10:20" (3/4) ... [2018-11-18 12:10:52,873 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 12:10:52,920 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a0b725b0-db03-4469-90ad-bd9307606c03/bin-2019/uautomizer/witness.graphml [2018-11-18 12:10:52,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:10:52,921 INFO L168 Benchmark]: Toolchain (without parser) took 32992.42 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 240.6 MB). Free memory was 955.5 MB in the beginning and 807.4 MB in the end (delta: 148.1 MB). Peak memory consumption was 388.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:52,921 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:10:52,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 355.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:52,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.69 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:52,922 INFO L168 Benchmark]: Boogie Preprocessor took 31.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:10:52,922 INFO L168 Benchmark]: RCFGBuilder took 575.36 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: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:52,923 INFO L168 Benchmark]: BuchiAutomizer took 31928.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 84.9 MB). Free memory was 1.1 GB in the beginning and 807.4 MB in the end (delta: 261.5 MB). Peak memory consumption was 346.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:10:52,923 INFO L168 Benchmark]: Witness Printer took 48.98 ms. Allocated memory is still 1.3 GB. Free memory was 807.4 MB in the beginning and 807.4 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-18 12:10:52,925 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 355.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 955.5 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.69 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.19 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 575.36 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: 69.7 MB). Peak memory consumption was 69.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 31928.50 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 84.9 MB). Free memory was 1.1 GB in the beginning and 807.4 MB in the end (delta: 261.5 MB). Peak memory consumption was 346.4 MB. Max. memory is 11.5 GB. * Witness Printer took 48.98 ms. Allocated memory is still 1.3 GB. Free memory was 807.4 MB in the beginning and 807.4 MB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 222 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 31.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 31.4s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 411 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 222 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 673 SDtfs, 936 SDslu, 718 SDs, 0 SdLazy, 123 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 776]: 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, "Env(Water:%i"=0, "Off"=0, ") "=34, retValue_acc=0, "On"=0, "Pump(System:"=0, ")"=11, "Env(Water:%i"=12, methaneLevelCritical=0, tmp___0=0, "CRIT"=0, "__utac__get_this_argtype"=37, ",Meth:"=0, retValue_acc=0, "CRIT"=24, tmp=0, tmp___1=0, "libacc.c"=38, tmp___0=0, "__utac__get_this_argtype"=35, cleanupTimeShifts=4, "i > 0 && i <= this->argsCount"=18, "i > 0 && i <= this->argsCount"=20, "i > 0 && i <= this->argsCount"=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@509e180b=0, "On"=26, tmp=0, "Off"=15, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "__utac__get_this_arg"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d85ae04=0, NULL=0, systemActive=1, waterLevel=1, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b3ee8f6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5cb3bd88=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@605f79da=0, retValue_acc=0, ",Pump:"=0, \result=0, "Off"=27, ") "=0, "\n"=0, "Off"=0, \result=1, head=0, pumpRunning=0, tmp=1, ",Pump:"=31, "\n"=28, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64a24741=0, "__utac__get_this_argtype"=0, ",Meth:"=17, "OK"=0, "libacc.c"=0, "__utac__get_this_argtype"=0, "On"=0, "i > 0 && i <= this->argsCount"=0, tmp=0, "libacc.c"=39, \result=1, "i > 0 && i <= this->argsCount"=19, ")"=0, tmp=1, retValue_acc=1, tmp___2=159, tmp___0=0, retValue_acc=1, "libacc.c"=23, splverifierCounter=0, \result=0, "OK"=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@be5e9a1=0, head=0, "libacc.c"=0, "__utac__get_this_arg"=22, "__utac__get_this_arg"=0, tmp=0, "__utac__get_this_arg"=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e94bc32=0, "libacc.c"=33, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a9c3293=159, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40482757=0, "i > 0 && i <= this->argsCount"=0, "Pump(System:"=29, "On"=14} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 776]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L505] FCALL "i > 0 && i <= this->argsCount" [L505] FCALL "libacc.c" [L506] FCALL "__utac__get_this_arg" [L512] FCALL "i > 0 && i <= this->argsCount" [L512] FCALL "libacc.c" [L513] FCALL "__utac__get_this_arg" [L551] FCALL "i > 0 && i <= this->argsCount" [L551] FCALL "libacc.c" [L552] FCALL "__utac__get_this_argtype" [L558] FCALL "i > 0 && i <= this->argsCount" [L558] FCALL "libacc.c" [L559] FCALL "__utac__get_this_argtype" [L707] FCALL "Pump(System:" [L711] FCALL "On" [L715] FCALL "Off" [L719] FCALL ",Pump:" [L723] FCALL "On" [L727] FCALL "Off" [L731] FCALL ") " [L733] FCALL "\n" [L895] FCALL "Env(Water:%i" [L896] FCALL ",Meth:" [L900] FCALL "CRIT" [L904] FCALL "OK" [L908] FCALL ")" [L40] int cleanupTimeShifts = 4; [L580] int pumpRunning = 0; [L581] int systemActive = 1; [L843] int waterLevel = 1; [L844] int methaneLevelCritical = 0; [L377] 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() [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] 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() [L767] int splverifierCounter ; [L768] int tmp ; [L769] int tmp___0 ; [L770] int tmp___1 ; [L771] int tmp___2 ; [L774] splverifierCounter = 0 Loop: [L776] COND TRUE 1 [L778] COND TRUE splverifierCounter < 4 [L784] tmp = __VERIFIER_nondet_int() [L786] COND FALSE !(\read(tmp)) [L794] tmp___0 = __VERIFIER_nondet_int() [L796] COND FALSE !(\read(tmp___0)) [L804] tmp___2 = __VERIFIER_nondet_int() [L806] COND TRUE \read(tmp___2) [L808] CALL startSystem() [L761] RET systemActive = 1 [L808] startSystem() [L821] CALL timeShift() [L587] COND FALSE !(\read(pumpRunning)) [L594] COND TRUE \read(systemActive) [L596] CALL processEnvironment() [L642] int tmp ; [L645] COND FALSE !(\read(pumpRunning)) [L660] CALL processEnvironment__wrappee__highWaterSensor() [L616] int tmp ; [L619] COND TRUE ! pumpRunning [L621] CALL, EXPR isHighWaterLevel() [L739] int retValue_acc ; [L740] int tmp ; [L741] int tmp___0 ; [L745] CALL, EXPR isHighWaterSensorDry() [L923] int retValue_acc ; [L926] COND TRUE waterLevel < 2 [L927] retValue_acc = 1 [L928] RET return (retValue_acc); [L745] EXPR isHighWaterSensorDry() [L745] tmp = isHighWaterSensorDry() [L747] COND TRUE \read(tmp) [L748] tmp___0 = 0 [L752] retValue_acc = tmp___0 [L753] RET return (retValue_acc); [L621] EXPR isHighWaterLevel() [L621] tmp = isHighWaterLevel() [L623] COND FALSE !(\read(tmp)) [L629] RET, FCALL processEnvironment__wrappee__base() [L660] RET processEnvironment__wrappee__highWaterSensor() [L596] processEnvironment() [L602] CALL __utac_acc__Specification1_spec__1() [L183] int tmp ; [L184] int tmp___0 ; [L188] CALL, EXPR isMethaneLevelCritical() [L882] int retValue_acc ; [L885] retValue_acc = methaneLevelCritical [L886] RET return (retValue_acc); [L188] EXPR isMethaneLevelCritical() [L188] tmp = isMethaneLevelCritical() [L190] COND FALSE, RET !(\read(tmp)) [L602] RET __utac_acc__Specification1_spec__1() [L821] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...