./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product52_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_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/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 406c0cc89d56bc86617076fb4c755244f0ec13e7 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 09:45:54,507 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 09:45:54,508 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 09:45:54,516 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 09:45:54,517 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 09:45:54,517 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 09:45:54,518 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 09:45:54,519 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 09:45:54,521 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 09:45:54,521 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 09:45:54,522 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 09:45:54,522 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 09:45:54,522 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 09:45:54,523 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 09:45:54,524 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 09:45:54,524 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 09:45:54,525 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 09:45:54,526 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 09:45:54,527 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 09:45:54,528 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 09:45:54,529 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 09:45:54,530 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 09:45:54,531 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 09:45:54,531 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 09:45:54,531 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 09:45:54,532 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 09:45:54,533 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 09:45:54,533 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 09:45:54,534 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 09:45:54,534 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 09:45:54,535 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 09:45:54,535 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 09:45:54,535 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 09:45:54,535 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 09:45:54,536 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 09:45:54,536 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 09:45:54,537 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 09:45:54,548 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 09:45:54,548 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 09:45:54,549 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 09:45:54,549 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 09:45:54,549 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 09:45:54,550 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 09:45:54,550 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 09:45:54,550 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 09:45:54,550 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 09:45:54,550 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 09:45:54,550 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 09:45:54,550 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 09:45:54,551 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 09:45:54,551 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 09:45:54,551 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 09:45:54,551 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 09:45:54,551 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 09:45:54,551 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 09:45:54,551 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 09:45:54,552 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 09:45:54,552 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 09:45:54,552 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 09:45:54,552 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 09:45:54,552 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 09:45:54,552 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 09:45:54,552 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 09:45:54,553 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 09:45:54,553 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 09:45:54,553 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 09:45:54,553 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 09:45:54,553 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 09:45:54,554 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 09:45:54,554 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_67b9a092-83ed-4a5d-ac70-03d251e13c58/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 -> 406c0cc89d56bc86617076fb4c755244f0ec13e7 [2018-11-18 09:45:54,579 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 09:45:54,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 09:45:54,593 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 09:45:54,594 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 09:45:54,594 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 09:45:54,595 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2018-11-18 09:45:54,645 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/data/0dcddc666/842a713ccf0e46a8966d4260cd82e796/FLAG98218b342 [2018-11-18 09:45:55,030 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 09:45:55,030 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/sv-benchmarks/c/product-lines/minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2018-11-18 09:45:55,039 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/data/0dcddc666/842a713ccf0e46a8966d4260cd82e796/FLAG98218b342 [2018-11-18 09:45:55,411 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/data/0dcddc666/842a713ccf0e46a8966d4260cd82e796 [2018-11-18 09:45:55,414 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 09:45:55,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 09:45:55,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 09:45:55,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 09:45:55,419 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 09:45:55,420 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,422 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37764a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55, skipping insertion in model container [2018-11-18 09:45:55,422 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 09:45:55,464 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 09:45:55,680 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:45:55,691 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 09:45:55,814 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 09:45:55,841 INFO L195 MainTranslator]: Completed translation [2018-11-18 09:45:55,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55 WrapperNode [2018-11-18 09:45:55,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 09:45:55,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 09:45:55,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 09:45:55,842 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 09:45:55,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,867 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 09:45:55,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 09:45:55,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 09:45:55,904 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 09:45:55,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (1/1) ... [2018-11-18 09:45:55,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 09:45:55,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 09:45:55,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 09:45:55,940 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 09:45:55,941 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/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 09:45:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 09:45:55,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 09:45:55,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 09:45:56,562 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 09:45:56,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:45:56 BoogieIcfgContainer [2018-11-18 09:45:56,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 09:45:56,563 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 09:45:56,563 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 09:45:56,565 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 09:45:56,566 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:45:56,566 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 09:45:55" (1/3) ... [2018-11-18 09:45:56,567 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@498e6efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:45:56, skipping insertion in model container [2018-11-18 09:45:56,567 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:45:56,567 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:45:55" (2/3) ... [2018-11-18 09:45:56,567 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@498e6efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 09:45:56, skipping insertion in model container [2018-11-18 09:45:56,567 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 09:45:56,568 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:45:56" (3/3) ... [2018-11-18 09:45:56,569 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product52_false-unreach-call_false-termination.cil.c [2018-11-18 09:45:56,603 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 09:45:56,604 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 09:45:56,604 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 09:45:56,604 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 09:45:56,604 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 09:45:56,604 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 09:45:56,604 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 09:45:56,604 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 09:45:56,604 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 09:45:56,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states. [2018-11-18 09:45:56,644 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2018-11-18 09:45:56,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:45:56,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:45:56,651 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:56,652 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 09:45:56,652 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 09:45:56,652 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 175 states. [2018-11-18 09:45:56,658 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 115 [2018-11-18 09:45:56,659 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:45:56,659 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:45:56,660 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:56,660 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 09:45:56,664 INFO L794 eck$LassoCheckResult]: Stem: 101#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];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(21);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(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 44];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 80];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 117];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 109];#memory_int := #memory_int[#t~string58.base,4 + #t~string58.offset := 112];#memory_int := #memory_int[#t~string58.base,5 + #t~string58.offset := 58];#memory_int := #memory_int[#t~string58.base,6 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 41];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 32];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 10];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 131#L883true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 57#L876true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 170#L891true main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 49#L978true assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 106#L955true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 81#L790-3true [2018-11-18 09:45:56,665 INFO L796 eck$LassoCheckResult]: Loop: 81#L790-3true assume true; 98#L790-1true assume !false; 38#L791true assume test_~splverifierCounter~0 < 4; 148#L792true test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 6#L800true assume !(0 != test_~tmp~8); 163#L800-2true test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 64#L810true assume !(0 != test_~tmp___0~3); 48#L810-2true test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 99#L820true assume !(0 != test_~tmp___2~0);test_~tmp___1~1 := test_#t~nondet72;havoc test_#t~nondet72; 134#L828true assume !(0 != test_~tmp___1~1); 140#L828-2true assume { :begin_inline_timeShift } true; 4#L566true assume !(0 != ~pumpRunning~0); 159#L566-2true assume !(0 != ~systemActive~0); 72#L573-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 79#L127true __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 68#L53true assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 15#L59-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 133#L583true assume { :end_inline_timeShift } true; 81#L790-3true [2018-11-18 09:45:56,670 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:56,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 09:45:56,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:56,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:56,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:56,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:56,707 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:56,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:56,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:56,925 INFO L82 PathProgramCache]: Analyzing trace with hash 19194995, now seen corresponding path program 1 times [2018-11-18 09:45:56,925 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:56,925 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:56,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:56,926 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:56,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:56,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:56,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1201836343, now seen corresponding path program 1 times [2018-11-18 09:45:56,941 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:56,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:56,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:56,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:56,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:57,062 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 09:45:57,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:57,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 09:45:57,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 09:45:57,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 09:45:57,154 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 6 states. [2018-11-18 09:45:57,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:57,429 INFO L93 Difference]: Finished difference Result 572 states and 754 transitions. [2018-11-18 09:45:57,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 09:45:57,432 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 572 states and 754 transitions. [2018-11-18 09:45:57,454 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 376 [2018-11-18 09:45:57,463 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 572 states to 532 states and 714 transitions. [2018-11-18 09:45:57,465 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 532 [2018-11-18 09:45:57,466 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 532 [2018-11-18 09:45:57,467 INFO L73 IsDeterministic]: Start isDeterministic. Operand 532 states and 714 transitions. [2018-11-18 09:45:57,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:45:57,470 INFO L705 BuchiCegarLoop]: Abstraction has 532 states and 714 transitions. [2018-11-18 09:45:57,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states and 714 transitions. [2018-11-18 09:45:57,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 222. [2018-11-18 09:45:57,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-11-18 09:45:57,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 297 transitions. [2018-11-18 09:45:57,513 INFO L728 BuchiCegarLoop]: Abstraction has 222 states and 297 transitions. [2018-11-18 09:45:57,513 INFO L608 BuchiCegarLoop]: Abstraction has 222 states and 297 transitions. [2018-11-18 09:45:57,514 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 09:45:57,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 297 transitions. [2018-11-18 09:45:57,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 157 [2018-11-18 09:45:57,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:45:57,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:45:57,517 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:57,517 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 09:45:57,517 INFO L794 eck$LassoCheckResult]: Stem: 896#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];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(21);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(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 44];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 80];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 117];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 109];#memory_int := #memory_int[#t~string58.base,4 + #t~string58.offset := 112];#memory_int := #memory_int[#t~string58.base,5 + #t~string58.offset := 58];#memory_int := #memory_int[#t~string58.base,6 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 41];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 32];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 10];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 779#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 780#L883 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 852#L876 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 853#L891 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 841#L978 assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 842#L955 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 879#L790-3 [2018-11-18 09:45:57,517 INFO L796 eck$LassoCheckResult]: Loop: 879#L790-3 assume true; 880#L790-1 assume !false; 826#L791 assume test_~splverifierCounter~0 < 4; 827#L792 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 772#L800 assume !(0 != test_~tmp~8); 774#L800-2 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 857#L810 assume !(0 != test_~tmp___0~3); 790#L810-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 840#L820 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 783#L775 assume { :end_inline_startSystem } true; 784#L828-2 assume { :begin_inline_timeShift } true; 767#L566 assume !(0 != ~pumpRunning~0); 768#L566-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 923#L624 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret48, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 837#L598-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 833#L590-3 assume { :end_inline_processEnvironment__wrappee__base } true; 830#L598-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 839#L624-1 assume { :end_inline_processEnvironment } true; 868#L573-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 869#L127 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 863#L53 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 787#L59-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 788#L583 assume { :end_inline_timeShift } true; 879#L790-3 [2018-11-18 09:45:57,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:57,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 09:45:57,518 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:57,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:57,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:57,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:57,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:57,610 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:57,611 INFO L82 PathProgramCache]: Analyzing trace with hash 144676180, now seen corresponding path program 1 times [2018-11-18 09:45:57,611 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:57,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:57,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:57,612 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:45:57,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:57,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:57,628 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 09:45:57,628 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:57,628 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 09:45:57,629 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 09:45:57,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 09:45:57,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 09:45:57,629 INFO L87 Difference]: Start difference. First operand 222 states and 297 transitions. cyclomatic complexity: 78 Second operand 3 states. [2018-11-18 09:45:57,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:57,736 INFO L93 Difference]: Finished difference Result 281 states and 360 transitions. [2018-11-18 09:45:57,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 09:45:57,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 281 states and 360 transitions. [2018-11-18 09:45:57,740 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2018-11-18 09:45:57,742 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 281 states to 281 states and 360 transitions. [2018-11-18 09:45:57,743 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 281 [2018-11-18 09:45:57,743 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 281 [2018-11-18 09:45:57,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 281 states and 360 transitions. [2018-11-18 09:45:57,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:45:57,744 INFO L705 BuchiCegarLoop]: Abstraction has 281 states and 360 transitions. [2018-11-18 09:45:57,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states and 360 transitions. [2018-11-18 09:45:57,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2018-11-18 09:45:57,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2018-11-18 09:45:57,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 360 transitions. [2018-11-18 09:45:57,755 INFO L728 BuchiCegarLoop]: Abstraction has 281 states and 360 transitions. [2018-11-18 09:45:57,755 INFO L608 BuchiCegarLoop]: Abstraction has 281 states and 360 transitions. [2018-11-18 09:45:57,755 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 09:45:57,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 281 states and 360 transitions. [2018-11-18 09:45:57,757 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 203 [2018-11-18 09:45:57,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:45:57,758 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:45:57,758 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:57,758 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 09:45:57,759 INFO L794 eck$LassoCheckResult]: Stem: 1408#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];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(21);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(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 44];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 80];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 117];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 109];#memory_int := #memory_int[#t~string58.base,4 + #t~string58.offset := 112];#memory_int := #memory_int[#t~string58.base,5 + #t~string58.offset := 58];#memory_int := #memory_int[#t~string58.base,6 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 41];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 32];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 10];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1287#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 1288#L883 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1360#L876 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1361#L891 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 1351#L978 assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 1352#L955 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1390#L790-3 [2018-11-18 09:45:57,759 INFO L796 eck$LassoCheckResult]: Loop: 1390#L790-3 assume true; 1391#L790-1 assume !false; 1334#L791 assume test_~splverifierCounter~0 < 4; 1335#L792 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 1280#L800 assume !(0 != test_~tmp~8); 1282#L800-2 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 1365#L810 assume !(0 != test_~tmp___0~3); 1298#L810-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 1348#L820 assume !(0 != test_~tmp___2~0);test_~tmp___1~1 := test_#t~nondet72;havoc test_#t~nondet72; 1509#L828 assume !(0 != test_~tmp___1~1); 1292#L828-2 assume { :begin_inline_timeShift } true; 1276#L566 assume !(0 != ~pumpRunning~0); 1277#L566-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1440#L624 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret48, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 1345#L598-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1346#L167-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1309#L172-1 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 1310#L726-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 1427#L726-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 1413#L732-1 processEnvironment__wrappee__highWaterSensor_#t~ret48 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret48;havoc processEnvironment__wrappee__highWaterSensor_#t~ret48; 1414#L602-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 1337#L590-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1338#L598-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1347#L624-1 assume { :end_inline_processEnvironment } true; 1378#L573-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1379#L127 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 1372#L53 assume 0 != __utac_acc__Specification3_spec__1_~tmp~0; 1295#L59-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1296#L583 assume { :end_inline_timeShift } true; 1390#L790-3 [2018-11-18 09:45:57,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:57,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 09:45:57,760 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:57,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:57,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:57,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:57,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:57,824 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:57,825 INFO L82 PathProgramCache]: Analyzing trace with hash 141082750, now seen corresponding path program 1 times [2018-11-18 09:45:57,825 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:57,825 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:57,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:57,826 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:45:57,826 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:57,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:57,835 INFO L82 PathProgramCache]: Analyzing trace with hash 15348026, now seen corresponding path program 1 times [2018-11-18 09:45:57,835 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:57,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:57,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:57,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:57,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 09:45:57,909 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 09:45:57,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 09:45:57,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 09:45:58,040 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2018-11-18 09:45:58,110 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 09:45:58,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 09:45:58,110 INFO L87 Difference]: Start difference. First operand 281 states and 360 transitions. cyclomatic complexity: 82 Second operand 5 states. [2018-11-18 09:45:58,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 09:45:58,217 INFO L93 Difference]: Finished difference Result 999 states and 1273 transitions. [2018-11-18 09:45:58,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 09:45:58,218 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 999 states and 1273 transitions. [2018-11-18 09:45:58,226 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 768 [2018-11-18 09:45:58,232 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 999 states to 999 states and 1273 transitions. [2018-11-18 09:45:58,232 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 999 [2018-11-18 09:45:58,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 999 [2018-11-18 09:45:58,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 999 states and 1273 transitions. [2018-11-18 09:45:58,235 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 09:45:58,235 INFO L705 BuchiCegarLoop]: Abstraction has 999 states and 1273 transitions. [2018-11-18 09:45:58,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states and 1273 transitions. [2018-11-18 09:45:58,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 555. [2018-11-18 09:45:58,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-11-18 09:45:58,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 701 transitions. [2018-11-18 09:45:58,254 INFO L728 BuchiCegarLoop]: Abstraction has 555 states and 701 transitions. [2018-11-18 09:45:58,254 INFO L608 BuchiCegarLoop]: Abstraction has 555 states and 701 transitions. [2018-11-18 09:45:58,254 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 09:45:58,254 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 555 states and 701 transitions. [2018-11-18 09:45:58,257 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 406 [2018-11-18 09:45:58,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 09:45:58,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 09:45:58,258 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:58,258 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 09:45:58,259 INFO L794 eck$LassoCheckResult]: Stem: 2714#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string4.base, #t~string4.offset := #Ultimate.alloc(13);call #t~string6.base, #t~string6.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string6.base,#t~string6.offset := 44];#memory_int := #memory_int[#t~string6.base,1 + #t~string6.offset := 77];#memory_int := #memory_int[#t~string6.base,2 + #t~string6.offset := 101];#memory_int := #memory_int[#t~string6.base,3 + #t~string6.offset := 116];#memory_int := #memory_int[#t~string6.base,4 + #t~string6.offset := 104];#memory_int := #memory_int[#t~string6.base,5 + #t~string6.offset := 58];#memory_int := #memory_int[#t~string6.base,6 + #t~string6.offset := 0];call #t~string8.base, #t~string8.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string8.base,#t~string8.offset := 67];#memory_int := #memory_int[#t~string8.base,1 + #t~string8.offset := 82];#memory_int := #memory_int[#t~string8.base,2 + #t~string8.offset := 73];#memory_int := #memory_int[#t~string8.base,3 + #t~string8.offset := 84];#memory_int := #memory_int[#t~string8.base,4 + #t~string8.offset := 0];call #t~string10.base, #t~string10.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string10.base,#t~string10.offset := 79];#memory_int := #memory_int[#t~string10.base,1 + #t~string10.offset := 75];#memory_int := #memory_int[#t~string10.base,2 + #t~string10.offset := 0];call #t~string12.base, #t~string12.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string12.base,#t~string12.offset := 41];#memory_int := #memory_int[#t~string12.base,1 + #t~string12.offset := 0];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(21);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(21);call #t~string40.base, #t~string40.offset := #Ultimate.alloc(30);call #t~string41.base, #t~string41.offset := #Ultimate.alloc(9);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(30);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(9);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(25);call #t~string52.base, #t~string52.offset := #Ultimate.alloc(13);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string54.base,#t~string54.offset := 79];#memory_int := #memory_int[#t~string54.base,1 + #t~string54.offset := 110];#memory_int := #memory_int[#t~string54.base,2 + #t~string54.offset := 0];call #t~string56.base, #t~string56.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string56.base,#t~string56.offset := 79];#memory_int := #memory_int[#t~string56.base,1 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,2 + #t~string56.offset := 102];#memory_int := #memory_int[#t~string56.base,3 + #t~string56.offset := 0];call #t~string58.base, #t~string58.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string58.base,#t~string58.offset := 44];#memory_int := #memory_int[#t~string58.base,1 + #t~string58.offset := 80];#memory_int := #memory_int[#t~string58.base,2 + #t~string58.offset := 117];#memory_int := #memory_int[#t~string58.base,3 + #t~string58.offset := 109];#memory_int := #memory_int[#t~string58.base,4 + #t~string58.offset := 112];#memory_int := #memory_int[#t~string58.base,5 + #t~string58.offset := 58];#memory_int := #memory_int[#t~string58.base,6 + #t~string58.offset := 0];call #t~string60.base, #t~string60.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string60.base,#t~string60.offset := 79];#memory_int := #memory_int[#t~string60.base,1 + #t~string60.offset := 110];#memory_int := #memory_int[#t~string60.base,2 + #t~string60.offset := 0];call #t~string62.base, #t~string62.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string62.base,#t~string62.offset := 79];#memory_int := #memory_int[#t~string62.base,1 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,2 + #t~string62.offset := 102];#memory_int := #memory_int[#t~string62.base,3 + #t~string62.offset := 0];call #t~string64.base, #t~string64.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string64.base,#t~string64.offset := 41];#memory_int := #memory_int[#t~string64.base,1 + #t~string64.offset := 32];#memory_int := #memory_int[#t~string64.base,2 + #t~string64.offset := 0];call #t~string66.base, #t~string66.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string66.base,#t~string66.offset := 10];#memory_int := #memory_int[#t~string66.base,1 + #t~string66.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 2585#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret74, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9;assume { :begin_inline_select_helpers } true; 2586#L883 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2658#L876 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 2659#L891 main_#t~ret74 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~9 := main_#t~ret74;havoc main_#t~ret74; 2649#L978 assume 0 != main_~tmp~9;assume { :begin_inline_setup } true; 2650#L955 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_#t~nondet72, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2721#L790-3 [2018-11-18 09:45:58,259 INFO L796 eck$LassoCheckResult]: Loop: 2721#L790-3 assume true; 3050#L790-1 assume !false; 3048#L791 assume test_~splverifierCounter~0 < 4; 2754#L792 test_~tmp~8 := test_#t~nondet69;havoc test_#t~nondet69; 2578#L800 assume !(0 != test_~tmp~8); 2580#L800-2 test_~tmp___0~3 := test_#t~nondet70;havoc test_#t~nondet70; 2763#L810 assume !(0 != test_~tmp___0~3); 3105#L810-2 test_~tmp___2~0 := test_#t~nondet71;havoc test_#t~nondet71; 3104#L820 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 3059#L775 assume { :end_inline_startSystem } true; 2741#L828-2 assume { :begin_inline_timeShift } true; 3103#L566 assume !(0 != ~pumpRunning~0); 2758#L566-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret49, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 2759#L624 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret48, processEnvironment__wrappee__highWaterSensor_~tmp~4;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4; 2643#L598-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret67, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2644#L167-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2605#L172-1 isHighWaterLevel_#t~ret67 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret67;havoc isHighWaterLevel_#t~ret67; 2606#L726-3 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 2739#L726-5 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 2719#L732-1 processEnvironment__wrappee__highWaterSensor_#t~ret48 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4 := processEnvironment__wrappee__highWaterSensor_#t~ret48;havoc processEnvironment__wrappee__highWaterSensor_#t~ret48; 2720#L602-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4);assume { :begin_inline_processEnvironment__wrappee__base } true; 2757#L590-2 assume { :end_inline_processEnvironment__wrappee__base } true; 3087#L598-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 3085#L624-1 assume { :end_inline_processEnvironment } true; 3080#L573-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret0, __utac_acc__Specification3_spec__1_#t~ret1, __utac_acc__Specification3_spec__1_#t~ret2, __utac_acc__Specification3_spec__1_~tmp~0, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~0;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 3079#L127 __utac_acc__Specification3_spec__1_#t~ret0 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~0 := __utac_acc__Specification3_spec__1_#t~ret0;havoc __utac_acc__Specification3_spec__1_#t~ret0; 3078#L53 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~0);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 3077#L159 __utac_acc__Specification3_spec__1_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret1;havoc __utac_acc__Specification3_spec__1_#t~ret1; 3074#L59 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 3073#L59-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3072#L583 assume { :end_inline_timeShift } true; 2721#L790-3 [2018-11-18 09:45:58,259 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:58,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 09:45:58,260 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:58,260 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:58,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:58,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:58,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:58,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:58,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:58,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:58,338 INFO L82 PathProgramCache]: Analyzing trace with hash -215992577, now seen corresponding path program 1 times [2018-11-18 09:45:58,338 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:58,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:58,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:58,339 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 09:45:58,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:58,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 09:45:58,347 INFO L82 PathProgramCache]: Analyzing trace with hash -787978053, now seen corresponding path program 1 times [2018-11-18 09:45:58,347 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 09:45:58,348 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 09:45:58,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:58,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 09:45:58,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 09:45:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:45:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 09:46:33,704 WARN L180 SmtUtils]: Spent 35.15 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 09:46:53,008 WARN L180 SmtUtils]: Spent 19.30 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 09:46:53,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 09:46:53 BoogieIcfgContainer [2018-11-18 09:46:53,100 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 09:46:53,101 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 09:46:53,101 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 09:46:53,101 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 09:46:53,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:45:56" (3/4) ... [2018-11-18 09:46:53,105 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 09:46:53,164 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_67b9a092-83ed-4a5d-ac70-03d251e13c58/bin-2019/uautomizer/witness.graphml [2018-11-18 09:46:53,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 09:46:53,166 INFO L168 Benchmark]: Toolchain (without parser) took 57751.12 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 305.1 MB). Free memory was 951.1 MB in the beginning and 1.0 GB in the end (delta: -96.1 MB). Peak memory consumption was 209.1 MB. Max. memory is 11.5 GB. [2018-11-18 09:46:53,167 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 09:46:53,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 425.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. [2018-11-18 09:46:53,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.27 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:46:53,167 INFO L168 Benchmark]: Boogie Preprocessor took 36.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:46:53,168 INFO L168 Benchmark]: RCFGBuilder took 622.22 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: 69.9 MB). Peak memory consumption was 69.9 MB. Max. memory is 11.5 GB. [2018-11-18 09:46:53,168 INFO L168 Benchmark]: BuchiAutomizer took 56537.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 153.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 315.3 MB. Max. memory is 11.5 GB. [2018-11-18 09:46:53,168 INFO L168 Benchmark]: Witness Printer took 63.49 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2018-11-18 09:46:53,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 425.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -188.4 MB). Peak memory consumption was 31.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.27 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 622.22 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: 69.9 MB). Peak memory consumption was 69.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 56537.82 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 153.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 315.3 MB. Max. memory is 11.5 GB. * Witness Printer took 63.49 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 555 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 56.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 55.7s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 754 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 555 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 798 SDtfs, 2058 SDslu, 2633 SDs, 0 SdLazy, 129 SolverSat, 50 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 790]: 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 {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e777a6e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@327f7913=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4800e6f9=0, retValue_acc=0, ") "=0, "Off"=0, "OK"=35, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "libacc.c"=0, "__utac__get_this_argtype"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25943c7f=0, "On"=0, "__utac__get_this_argtype"=0, "i > 0 && i <= this->argsCount"=0, retValue_acc=1, ") "=38, "Off"=15, methaneLevelCritical=0, "CRIT"=36, tmp___0=0, "libacc.c"=23, "__utac__get_this_arg"=29, "\n"=0, retValue_acc=0, tmp___1=0, tmp=0, "Env(Water:%i"=0, "CRIT"=0, ",Meth:"=0, tmp___0=1, "__utac__get_this_arg"=26, tmp=0, tmp=0, cleanupTimeShifts=4, "i > 0 && i <= this->argsCount"=28, "i > 0 && i <= this->argsCount"=33, "__utac__get_this_argtype"=22, "__utac__get_this_argtype"=18, NULL=0, systemActive=1, waterLevel=1, \result=1, "libacc.c"=0, ",Pump:"=14, ")"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21215c96=0, ")"=34, \result=0, "OK"=0, "libacc.c"=19, "On"=0, "Pump(System:"=0, "On"=11, ",Pump:"=0, "Off"=0, "Env(Water:%i"=37, \result=1, retValue_acc=1, retValue_acc=0, head=0, pumpRunning=0, \result=0, "Pump(System:"=17, "__utac__get_this_arg"=0, "\n"=39, retValue_acc=1, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25e2d4e6=0, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=27, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e344765=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@407f5e4e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6073a089=162, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17a6025f=0, tmp___0=0, tmp___2=162, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5eaa6662=0, tmp=1, splverifierCounter=0, \result=0, ",Meth:"=8, tmp___1=0, head=0, tmp=0, tmp=1, "libacc.c"=31, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=20, "i > 0 && i <= this->argsCount"=24, "Off"=12, "On"=16} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 790]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L136] FCALL "Env(Water:%i" [L137] FCALL ",Meth:" [L141] FCALL "CRIT" [L145] FCALL "OK" [L149] FCALL ")" [L484] FCALL "i > 0 && i <= this->argsCount" [L484] FCALL "libacc.c" [L485] FCALL "__utac__get_this_arg" [L491] FCALL "i > 0 && i <= this->argsCount" [L491] FCALL "libacc.c" [L492] FCALL "__utac__get_this_arg" [L530] FCALL "i > 0 && i <= this->argsCount" [L530] FCALL "libacc.c" [L531] FCALL "__utac__get_this_argtype" [L537] FCALL "i > 0 && i <= this->argsCount" [L537] FCALL "libacc.c" [L538] FCALL "__utac__get_this_argtype" [L686] FCALL "Pump(System:" [L690] FCALL "On" [L694] FCALL "Off" [L698] FCALL ",Pump:" [L702] FCALL "On" [L706] FCALL "Off" [L710] FCALL ") " [L712] FCALL "\n" [L84] int waterLevel = 1; [L85] int methaneLevelCritical = 0; [L559] int pumpRunning = 0; [L560] int systemActive = 1; [L896] int cleanupTimeShifts = 4; [L356] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L887] int retValue_acc ; [L890] retValue_acc = 1 [L891] RET return (retValue_acc); [L976] EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L781] int splverifierCounter ; [L782] int tmp ; [L783] int tmp___0 ; [L784] int tmp___1 ; [L785] int tmp___2 ; [L788] splverifierCounter = 0 Loop: [L790] COND TRUE 1 [L792] COND TRUE splverifierCounter < 4 [L798] tmp = __VERIFIER_nondet_int() [L800] COND FALSE !(\read(tmp)) [L808] tmp___0 = __VERIFIER_nondet_int() [L810] COND FALSE !(\read(tmp___0)) [L818] tmp___2 = __VERIFIER_nondet_int() [L820] COND TRUE \read(tmp___2) [L822] CALL startSystem() [L774] RET systemActive = 1 [L822] startSystem() [L837] CALL timeShift() [L566] COND FALSE !(\read(pumpRunning)) [L573] COND TRUE \read(systemActive) [L575] CALL processEnvironment() [L621] int tmp ; [L624] COND FALSE !(\read(pumpRunning)) [L639] CALL processEnvironment__wrappee__highWaterSensor() [L595] int tmp ; [L598] COND TRUE ! pumpRunning [L600] CALL, EXPR isHighWaterLevel() [L718] int retValue_acc ; [L719] int tmp ; [L720] int tmp___0 ; [L724] CALL, EXPR isHighWaterSensorDry() [L164] int retValue_acc ; [L167] COND TRUE waterLevel < 2 [L168] retValue_acc = 1 [L169] RET return (retValue_acc); [L724] EXPR isHighWaterSensorDry() [L724] tmp = isHighWaterSensorDry() [L726] COND TRUE \read(tmp) [L727] tmp___0 = 0 [L731] retValue_acc = tmp___0 [L732] RET return (retValue_acc); [L600] EXPR isHighWaterLevel() [L600] tmp = isHighWaterLevel() [L602] COND FALSE !(\read(tmp)) [L608] RET, FCALL processEnvironment__wrappee__base() [L639] RET processEnvironment__wrappee__highWaterSensor() [L575] processEnvironment() [L581] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L123] int retValue_acc ; [L126] retValue_acc = methaneLevelCritical [L127] RET return (retValue_acc); [L51] EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L155] int retValue_acc ; [L158] retValue_acc = waterLevel [L159] RET return (retValue_acc); [L57] EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND FALSE, RET !(tmp___0 == 2) [L581] RET __utac_acc__Specification3_spec__1() [L837] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...