./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product54_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product54_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/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 59e8ffce74c1b6945f19c84278937c63a4a3dd33 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 16:07:00,507 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:07:00,509 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:07:00,518 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:07:00,519 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:07:00,519 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:07:00,520 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:07:00,521 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:07:00,523 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:07:00,524 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:07:00,524 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:07:00,525 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:07:00,525 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:07:00,526 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:07:00,527 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:07:00,527 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:07:00,528 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:07:00,529 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:07:00,531 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:07:00,532 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:07:00,533 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:07:00,534 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:07:00,536 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:07:00,536 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:07:00,536 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:07:00,537 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:07:00,538 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:07:00,538 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:07:00,539 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:07:00,540 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:07:00,540 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:07:00,541 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:07:00,541 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:07:00,541 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:07:00,542 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:07:00,542 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:07:00,543 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:07:00,554 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:07:00,554 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:07:00,555 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:07:00,556 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:07:00,556 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:07:00,556 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:07:00,556 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:07:00,556 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:07:00,556 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:07:00,556 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:07:00,557 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:07:00,557 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:07:00,557 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:07:00,557 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:07:00,557 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:07:00,557 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:07:00,557 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:07:00,558 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:07:00,558 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:07:00,558 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:07:00,558 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:07:00,558 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:07:00,558 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:07:00,558 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:07:00,559 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:07:00,559 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:07:00,559 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:07:00,559 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:07:00,559 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:07:00,559 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:07:00,559 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:07:00,560 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:07:00,560 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_b83a4266-353d-45e7-abfd-bf9774335c8b/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 -> 59e8ffce74c1b6945f19c84278937c63a4a3dd33 [2018-11-18 16:07:00,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:07:00,596 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:07:00,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:07:00,600 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:07:00,601 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:07:00,601 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec3_product54_true-unreach-call_false-termination.cil.c [2018-11-18 16:07:00,642 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/data/408d616de/01c78518a1df48bd8c77b978ae5592a9/FLAGfb9a0ce51 [2018-11-18 16:07:01,052 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:07:01,054 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/sv-benchmarks/c/product-lines/minepump_spec3_product54_true-unreach-call_false-termination.cil.c [2018-11-18 16:07:01,063 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/data/408d616de/01c78518a1df48bd8c77b978ae5592a9/FLAGfb9a0ce51 [2018-11-18 16:07:01,419 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/data/408d616de/01c78518a1df48bd8c77b978ae5592a9 [2018-11-18 16:07:01,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:07:01,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:07:01,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:07:01,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:07:01,424 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:07:01,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:01,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@700fd1e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01, skipping insertion in model container [2018-11-18 16:07:01,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:01,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:07:01,462 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:07:01,703 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:07:01,712 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:07:01,774 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:07:01,884 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:07:01,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01 WrapperNode [2018-11-18 16:07:01,885 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:07:01,885 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:07:01,885 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:07:01,886 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:07:01,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:01,909 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:01,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:07:01,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:07:01,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:07:01,975 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:07:01,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:01,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:01,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:01,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:01,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:02,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:02,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (1/1) ... [2018-11-18 16:07:02,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:07:02,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:07:02,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:07:02,016 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:07:02,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 16:07:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:07:02,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:07:02,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:07:02,902 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:07:02,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:07:02 BoogieIcfgContainer [2018-11-18 16:07:02,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:07:02,903 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:07:02,903 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:07:02,906 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:07:02,907 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:07:02,907 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:07:01" (1/3) ... [2018-11-18 16:07:02,908 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cdf0381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:07:02, skipping insertion in model container [2018-11-18 16:07:02,908 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:07:02,908 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:07:01" (2/3) ... [2018-11-18 16:07:02,909 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cdf0381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:07:02, skipping insertion in model container [2018-11-18 16:07:02,909 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:07:02,909 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:07:02" (3/3) ... [2018-11-18 16:07:02,911 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product54_true-unreach-call_false-termination.cil.c [2018-11-18 16:07:02,952 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:07:02,952 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:07:02,953 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:07:02,953 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:07:02,953 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:07:02,953 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:07:02,953 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:07:02,953 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:07:02,953 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:07:02,968 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states. [2018-11-18 16:07:02,992 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2018-11-18 16:07:02,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:07:02,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:07:02,998 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:02,999 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:02,999 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:07:02,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states. [2018-11-18 16:07:03,005 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2018-11-18 16:07:03,005 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:07:03,005 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:07:03,006 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:03,006 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:03,010 INFO L794 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 17#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 144#L319true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 68#L312true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 257#L327true main_#t~ret10 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 251#L239true assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 232#L212true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 8#L709-3true [2018-11-18 16:07:03,010 INFO L796 eck$LassoCheckResult]: Loop: 8#L709-3true assume true; 3#L709-1true assume !false; 143#L710true assume test_~splverifierCounter~0 < 4; 200#L711true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 117#L719true assume !(0 != test_~tmp~5); 102#L719-2true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 252#L729true assume !(0 != test_~tmp___0~1); 255#L729-2true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 173#L739true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 37#L995true assume { :end_inline_startSystem } true; 48#L747-2true assume { :begin_inline_timeShift } true; 26#L775true assume !(0 != ~pumpRunning~0); 32#L775-2true assume !(0 != ~systemActive~0); 121#L782-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_#t~ret13, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;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; 223#L91-1true __utac_acc__Specification3_spec__1_#t~ret11 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret11;havoc __utac_acc__Specification3_spec__1_#t~ret11; 254#L272true assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 247#L278-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 147#L792true assume { :end_inline_timeShift } true; 8#L709-3true [2018-11-18 16:07:03,015 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:03,016 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 16:07:03,017 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:03,018 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:03,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:03,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:03,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:03,187 INFO L82 PathProgramCache]: Analyzing trace with hash -988946171, now seen corresponding path program 1 times [2018-11-18 16:07:03,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:03,188 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:03,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:03,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:07:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:07:03,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:07:03,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:07:03,234 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:07:03,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:07:03,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:07:03,244 INFO L87 Difference]: Start difference. First operand 279 states. Second operand 3 states. [2018-11-18 16:07:03,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:07:03,290 INFO L93 Difference]: Finished difference Result 276 states and 368 transitions. [2018-11-18 16:07:03,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:07:03,291 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 276 states and 368 transitions. [2018-11-18 16:07:03,295 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 179 [2018-11-18 16:07:03,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 276 states to 266 states and 357 transitions. [2018-11-18 16:07:03,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 266 [2018-11-18 16:07:03,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 266 [2018-11-18 16:07:03,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 266 states and 357 transitions. [2018-11-18 16:07:03,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:07:03,303 INFO L705 BuchiCegarLoop]: Abstraction has 266 states and 357 transitions. [2018-11-18 16:07:03,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states and 357 transitions. [2018-11-18 16:07:03,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2018-11-18 16:07:03,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2018-11-18 16:07:03,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 357 transitions. [2018-11-18 16:07:03,332 INFO L728 BuchiCegarLoop]: Abstraction has 266 states and 357 transitions. [2018-11-18 16:07:03,332 INFO L608 BuchiCegarLoop]: Abstraction has 266 states and 357 transitions. [2018-11-18 16:07:03,332 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:07:03,332 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 266 states and 357 transitions. [2018-11-18 16:07:03,334 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 179 [2018-11-18 16:07:03,334 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:07:03,334 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:07:03,335 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:03,335 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] [2018-11-18 16:07:03,335 INFO L794 eck$LassoCheckResult]: Stem: 769#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 592#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 593#L319 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 676#L312 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 677#L327 main_#t~ret10 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 825#L239 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 818#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 576#L709-3 [2018-11-18 16:07:03,336 INFO L796 eck$LassoCheckResult]: Loop: 576#L709-3 assume true; 564#L709-1 assume !false; 565#L710 assume test_~splverifierCounter~0 < 4; 771#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 733#L719 assume !(0 != test_~tmp~5); 719#L719-2 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 720#L729 assume !(0 != test_~tmp___0~1); 799#L729-2 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 784#L739 assume !(0 != test_~tmp___2~0);test_~tmp___1~1 := test_#t~nondet53;havoc test_#t~nondet53; 688#L747 assume 0 != test_~tmp___1~1; 633#L747-2 assume { :begin_inline_timeShift } true; 610#L775 assume !(0 != ~pumpRunning~0); 611#L775-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 623#L859 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res;havoc isMethaneAlarm_#t~ret57, isMethaneAlarm_~retValue_acc~10;havoc isMethaneAlarm_~retValue_acc~10;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; 763#L91 isMethaneAlarm_#t~ret57 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10 := isMethaneAlarm_#t~ret57;havoc isMethaneAlarm_#t~ret57;isMethaneAlarm_#res := isMethaneAlarm_~retValue_acc~10; 758#L903 processEnvironment_#t~ret56 := isMethaneAlarm_#res;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~8 := processEnvironment_#t~ret56;havoc processEnvironment_#t~ret56; 640#L863 assume 0 != processEnvironment_~tmp~8;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 641#L893 assume { :end_inline_deactivatePump } true; 767#L859-1 assume { :end_inline_processEnvironment } true; 741#L782-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_#t~ret13, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;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; 742#L91-1 __utac_acc__Specification3_spec__1_#t~ret11 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret11;havoc __utac_acc__Specification3_spec__1_#t~ret11; 814#L272 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 783#L278-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 774#L792 assume { :end_inline_timeShift } true; 576#L709-3 [2018-11-18 16:07:03,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:03,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 16:07:03,336 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:03,337 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:03,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,337 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:03,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:03,405 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:03,405 INFO L82 PathProgramCache]: Analyzing trace with hash -626967249, now seen corresponding path program 1 times [2018-11-18 16:07:03,405 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:03,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:03,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,406 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:07:03,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:07:03,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:07:03,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:07:03,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:07:03,427 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:07:03,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:07:03,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:07:03,427 INFO L87 Difference]: Start difference. First operand 266 states and 357 transitions. cyclomatic complexity: 93 Second operand 3 states. [2018-11-18 16:07:03,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:07:03,566 INFO L93 Difference]: Finished difference Result 285 states and 362 transitions. [2018-11-18 16:07:03,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:07:03,567 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 285 states and 362 transitions. [2018-11-18 16:07:03,569 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 198 [2018-11-18 16:07:03,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 285 states to 285 states and 362 transitions. [2018-11-18 16:07:03,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 285 [2018-11-18 16:07:03,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 285 [2018-11-18 16:07:03,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 285 states and 362 transitions. [2018-11-18 16:07:03,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:07:03,574 INFO L705 BuchiCegarLoop]: Abstraction has 285 states and 362 transitions. [2018-11-18 16:07:03,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states and 362 transitions. [2018-11-18 16:07:03,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2018-11-18 16:07:03,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2018-11-18 16:07:03,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 362 transitions. [2018-11-18 16:07:03,584 INFO L728 BuchiCegarLoop]: Abstraction has 285 states and 362 transitions. [2018-11-18 16:07:03,584 INFO L608 BuchiCegarLoop]: Abstraction has 285 states and 362 transitions. [2018-11-18 16:07:03,584 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:07:03,585 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 285 states and 362 transitions. [2018-11-18 16:07:03,587 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 198 [2018-11-18 16:07:03,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:07:03,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:07:03,588 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:03,588 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 16:07:03,588 INFO L794 eck$LassoCheckResult]: Stem: 1281#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1147#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 1148#L319 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1210#L312 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 1211#L327 main_#t~ret10 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 1341#L239 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 1333#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1132#L709-3 [2018-11-18 16:07:03,588 INFO L796 eck$LassoCheckResult]: Loop: 1132#L709-3 assume true; 1121#L709-1 assume !false; 1122#L710 assume test_~splverifierCounter~0 < 4; 1283#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 1255#L719 assume !(0 != test_~tmp~5); 1241#L719-2 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 1242#L729 assume !(0 != test_~tmp___0~1); 1321#L729-2 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 1302#L739 assume !(0 != test_~tmp___2~0);test_~tmp___1~1 := test_#t~nondet53;havoc test_#t~nondet53; 1219#L747 assume 0 != test_~tmp___1~1; 1177#L747-2 assume { :begin_inline_timeShift } true; 1157#L775 assume !(0 != ~pumpRunning~0); 1158#L775-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 1170#L859 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret55, processEnvironment__wrappee__lowWaterSensor_~tmp~7;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7; 1276#L833-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1243#L807-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 1151#L131-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 1152#L136-3 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 1175#L961-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1240#L961-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1202#L967-3 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 1203#L811-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 1314#L799-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1244#L807-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1245#L833-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1280#L859-1 assume { :end_inline_processEnvironment } true; 1262#L782-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_#t~ret13, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;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; 1263#L91-1 __utac_acc__Specification3_spec__1_#t~ret11 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret11;havoc __utac_acc__Specification3_spec__1_#t~ret11; 1328#L272 assume 0 != __utac_acc__Specification3_spec__1_~tmp~1; 1301#L278-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1287#L792 assume { :end_inline_timeShift } true; 1132#L709-3 [2018-11-18 16:07:03,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:03,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 16:07:03,589 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:03,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:03,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:03,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:03,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:03,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:03,636 INFO L82 PathProgramCache]: Analyzing trace with hash 177690127, now seen corresponding path program 1 times [2018-11-18 16:07:03,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:03,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:03,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,637 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:07:03,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:03,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:03,649 INFO L82 PathProgramCache]: Analyzing trace with hash -394295349, now seen corresponding path program 1 times [2018-11-18 16:07:03,650 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:03,650 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:03,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,651 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:03,651 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:07:03,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 16:07:03,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:07:03,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:07:03,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 16:07:03,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:07:03,862 INFO L87 Difference]: Start difference. First operand 285 states and 362 transitions. cyclomatic complexity: 79 Second operand 5 states. [2018-11-18 16:07:04,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:07:04,093 INFO L93 Difference]: Finished difference Result 989 states and 1248 transitions. [2018-11-18 16:07:04,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 16:07:04,094 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 989 states and 1248 transitions. [2018-11-18 16:07:04,099 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 722 [2018-11-18 16:07:04,104 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 989 states to 989 states and 1248 transitions. [2018-11-18 16:07:04,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 989 [2018-11-18 16:07:04,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 989 [2018-11-18 16:07:04,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 989 states and 1248 transitions. [2018-11-18 16:07:04,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:07:04,108 INFO L705 BuchiCegarLoop]: Abstraction has 989 states and 1248 transitions. [2018-11-18 16:07:04,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 989 states and 1248 transitions. [2018-11-18 16:07:04,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 989 to 563. [2018-11-18 16:07:04,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2018-11-18 16:07:04,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 709 transitions. [2018-11-18 16:07:04,125 INFO L728 BuchiCegarLoop]: Abstraction has 563 states and 709 transitions. [2018-11-18 16:07:04,125 INFO L608 BuchiCegarLoop]: Abstraction has 563 states and 709 transitions. [2018-11-18 16:07:04,125 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 16:07:04,125 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 563 states and 709 transitions. [2018-11-18 16:07:04,128 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 396 [2018-11-18 16:07:04,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:07:04,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:07:04,129 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:07:04,129 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, 1, 1] [2018-11-18 16:07:04,129 INFO L794 eck$LassoCheckResult]: Stem: 2579#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string1.base, #t~string1.offset := #Ultimate.alloc(13);call #t~string3.base, #t~string3.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string3.base,#t~string3.offset := 44];#memory_int := #memory_int[#t~string3.base,1 + #t~string3.offset := 77];#memory_int := #memory_int[#t~string3.base,2 + #t~string3.offset := 101];#memory_int := #memory_int[#t~string3.base,3 + #t~string3.offset := 116];#memory_int := #memory_int[#t~string3.base,4 + #t~string3.offset := 104];#memory_int := #memory_int[#t~string3.base,5 + #t~string3.offset := 58];#memory_int := #memory_int[#t~string3.base,6 + #t~string3.offset := 0];call #t~string5.base, #t~string5.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string5.base,#t~string5.offset := 67];#memory_int := #memory_int[#t~string5.base,1 + #t~string5.offset := 82];#memory_int := #memory_int[#t~string5.base,2 + #t~string5.offset := 73];#memory_int := #memory_int[#t~string5.base,3 + #t~string5.offset := 84];#memory_int := #memory_int[#t~string5.base,4 + #t~string5.offset := 0];call #t~string7.base, #t~string7.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string7.base,#t~string7.offset := 79];#memory_int := #memory_int[#t~string7.base,1 + #t~string7.offset := 75];#memory_int := #memory_int[#t~string7.base,2 + #t~string7.offset := 0];call #t~string9.base, #t~string9.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string9.base,#t~string9.offset := 41];#memory_int := #memory_int[#t~string9.base,1 + #t~string9.offset := 0];call #t~string33.base, #t~string33.offset := #Ultimate.alloc(30);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(9);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(21);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(30);call #t~string37.base, #t~string37.offset := #Ultimate.alloc(9);call #t~string38.base, #t~string38.offset := #Ultimate.alloc(21);call #t~string42.base, #t~string42.offset := #Ultimate.alloc(30);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(9);call #t~string44.base, #t~string44.offset := #Ultimate.alloc(25);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(30);call #t~string46.base, #t~string46.offset := #Ultimate.alloc(9);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(25);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 79];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 110];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 79];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 102];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 44];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 80];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 117];#memory_int := #memory_int[#t~string65.base,3 + #t~string65.offset := 109];#memory_int := #memory_int[#t~string65.base,4 + #t~string65.offset := 112];#memory_int := #memory_int[#t~string65.base,5 + #t~string65.offset := 58];#memory_int := #memory_int[#t~string65.base,6 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 79];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 110];#memory_int := #memory_int[#t~string67.base,2 + #t~string67.offset := 0];call #t~string69.base, #t~string69.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string69.base,#t~string69.offset := 79];#memory_int := #memory_int[#t~string69.base,1 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,2 + #t~string69.offset := 102];#memory_int := #memory_int[#t~string69.base,3 + #t~string69.offset := 0];call #t~string71.base, #t~string71.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string71.base,#t~string71.offset := 41];#memory_int := #memory_int[#t~string71.base,1 + #t~string71.offset := 32];#memory_int := #memory_int[#t~string71.base,2 + #t~string71.offset := 0];call #t~string73.base, #t~string73.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string73.base,#t~string73.offset := 10];#memory_int := #memory_int[#t~string73.base,1 + #t~string73.offset := 0];~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2437#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0;assume { :begin_inline_select_helpers } true; 2438#L319 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2505#L312 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 2506#L327 main_#t~ret10 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 2649#L239 assume 0 != main_~tmp~0;assume { :begin_inline_setup } true; 2639#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2424#L709-3 [2018-11-18 16:07:04,129 INFO L796 eck$LassoCheckResult]: Loop: 2424#L709-3 assume true; 2413#L709-1 assume !false; 2414#L710 assume test_~splverifierCounter~0 < 4; 2581#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 2551#L719 assume !(0 != test_~tmp~5); 2539#L719-2 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 2540#L729 assume !(0 != test_~tmp___0~1); 2650#L729-2 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 2973#L739 assume !(0 != test_~tmp___2~0);test_~tmp___1~1 := test_#t~nondet53;havoc test_#t~nondet53; 2516#L747 assume 0 != test_~tmp___1~1; 2470#L747-2 assume { :begin_inline_timeShift } true; 2449#L775 assume !(0 != ~pumpRunning~0); 2450#L775-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 2572#L859 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret55, processEnvironment__wrappee__lowWaterSensor_~tmp~7;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~7; 2573#L833-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 2541#L807-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 2443#L131-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 2444#L136-3 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 2468#L961-9 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 2538#L961-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 2497#L967-3 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 2498#L811-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6);assume { :begin_inline_processEnvironment__wrappee__base } true; 2612#L799-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2613#L807-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2975#L833-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2605#L859-1 assume { :end_inline_processEnvironment } true; 2558#L782-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret11, __utac_acc__Specification3_spec__1_#t~ret12, __utac_acc__Specification3_spec__1_#t~ret13, __utac_acc__Specification3_spec__1_~tmp~1, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~1;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; 2559#L91-1 __utac_acc__Specification3_spec__1_#t~ret11 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~1 := __utac_acc__Specification3_spec__1_#t~ret11;havoc __utac_acc__Specification3_spec__1_#t~ret11; 2631#L272 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~1);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; 2651#L123 __utac_acc__Specification3_spec__1_#t~ret12 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret12;havoc __utac_acc__Specification3_spec__1_#t~ret12; 2648#L278 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 2597#L278-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2585#L792 assume { :end_inline_timeShift } true; 2424#L709-3 [2018-11-18 16:07:04,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:04,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2018-11-18 16:07:04,130 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:04,130 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:04,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:04,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:04,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:04,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:04,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1037222398, now seen corresponding path program 1 times [2018-11-18 16:07:04,170 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:04,171 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:04,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:04,171 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:07:04,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:04,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:04,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:04,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:07:04,181 INFO L82 PathProgramCache]: Analyzing trace with hash -959450946, now seen corresponding path program 1 times [2018-11-18 16:07:04,181 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:07:04,181 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:07:04,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:04,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:07:04,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:07:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:04,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:07:04,362 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2018-11-18 16:07:45,876 WARN L180 SmtUtils]: Spent 41.47 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 16:08:00,175 WARN L180 SmtUtils]: Spent 14.30 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 16:08:00,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:08:00 BoogieIcfgContainer [2018-11-18 16:08:00,249 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:08:00,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:08:00,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:08:00,250 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:08:00,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:07:02" (3/4) ... [2018-11-18 16:08:00,253 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 16:08:00,297 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b83a4266-353d-45e7-abfd-bf9774335c8b/bin-2019/uautomizer/witness.graphml [2018-11-18 16:08:00,297 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:08:00,298 INFO L168 Benchmark]: Toolchain (without parser) took 58876.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 205.5 MB). Free memory was 951.7 MB in the beginning and 749.8 MB in the end (delta: 202.0 MB). Peak memory consumption was 407.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:08:00,299 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:08:00,299 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:08:00,300 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.13 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2018-11-18 16:08:00,301 INFO L168 Benchmark]: Boogie Preprocessor took 41.20 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: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:08:00,301 INFO L168 Benchmark]: RCFGBuilder took 886.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.6 MB). Peak memory consumption was 85.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:08:00,301 INFO L168 Benchmark]: BuchiAutomizer took 57346.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.0 GB in the beginning and 755.3 MB in the end (delta: 256.3 MB). Peak memory consumption was 338.1 MB. Max. memory is 11.5 GB. [2018-11-18 16:08:00,302 INFO L168 Benchmark]: Witness Printer took 47.75 ms. Allocated memory is still 1.2 GB. Free memory was 755.3 MB in the beginning and 749.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:08:00,303 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 462.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -160.1 MB). Peak memory consumption was 39.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.13 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: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.20 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: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 886.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 85.6 MB). Peak memory consumption was 85.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 57346.09 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 81.8 MB). Free memory was 1.0 GB in the beginning and 755.3 MB in the end (delta: 256.3 MB). Peak memory consumption was 338.1 MB. Max. memory is 11.5 GB. * Witness Printer took 47.75 ms. Allocated memory is still 1.2 GB. Free memory was 755.3 MB in the beginning and 749.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 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 5 locations. The remainder module has 563 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 57.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 56.6s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 426 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 563 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 1079 SDtfs, 1668 SDslu, 1472 SDs, 0 SdLazy, 118 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 709]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {NULL=0, "Env(Water:%i"=8, "Off"=0, "libacc.c"=0, "libacc.c"=28, ") "=38, "i > 0 && i <= this->argsCount"=0, "OK"=14, "i > 0 && i <= this->argsCount"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25d7c350=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@486b3076=160, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ed828e3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38de0754=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50103f51=0, tmp=0, "i > 0 && i <= this->argsCount"=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50a3d9f2=0, "On"=0, tmp___1=160, "i > 0 && i <= this->argsCount"=19, tmp=0, cleanupTimeShifts=4, "i > 0 && i <= this->argsCount"=23, "i > 0 && i <= this->argsCount"=27, waterLevel=1, "__utac__get_this_arg"=0, "__utac__get_this_argtype"=26, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, "i > 0 && i <= this->argsCount"=0, retValue_acc=1, "__utac__get_this_arg"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, \result=1, "On"=33, ") "=0, retValue_acc=0, "\n"=0, tmp___0=0, tmp=1, "\n"=39, ")"=15, "Pump(System:"=31, head=0, "libacc.c"=0, tmp=0, "libacc.c"=24, retValue_acc=0, "__utac__get_this_argtype"=0, retValue_acc=0, "__utac__get_this_argtype"=0, "On"=0, "Off"=34, "__utac__get_this_arg"=22, "libacc.c"=0, "libacc.c"=20, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1999a40c=0, tmp=0, ",Pump:"=0, "Off"=0, tmp___0=1, "libacc.c"=17, tmp=0, NULL=0, systemActive=1, "Off"=37, \result=1, \result=0, "__utac__get_this_argtype"=29, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a04d893=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e1c9d3b=0, "__utac__get_this_arg"=18, retValue_acc=1, "On"=36, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1720bf14=0, "CRIT"=12, tmp___2=0, splverifierCounter=0, "Env(Water:%i"=0, ",Meth:"=0, "Pump(System:"=0, ")"=0, "OK"=0, "CRIT"=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16aa15a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f932107=0, tmp___1=0, ",Meth:"=11, ",Pump:"=35} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 709]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L100] FCALL "Env(Water:%i" [L101] FCALL ",Meth:" [L105] FCALL "CRIT" [L109] FCALL "OK" [L113] FCALL ")" [L629] FCALL "i > 0 && i <= this->argsCount" [L629] FCALL "libacc.c" [L630] FCALL "__utac__get_this_arg" [L636] FCALL "i > 0 && i <= this->argsCount" [L636] FCALL "libacc.c" [L637] FCALL "__utac__get_this_arg" [L675] FCALL "i > 0 && i <= this->argsCount" [L675] FCALL "libacc.c" [L676] FCALL "__utac__get_this_argtype" [L682] FCALL "i > 0 && i <= this->argsCount" [L682] FCALL "libacc.c" [L683] FCALL "__utac__get_this_argtype" [L921] FCALL "Pump(System:" [L925] FCALL "On" [L929] FCALL "Off" [L933] FCALL ",Pump:" [L937] FCALL "On" [L941] FCALL "Off" [L945] FCALL ") " [L947] FCALL "\n" [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L768] int pumpRunning = 0; [L769] int systemActive = 1; [L501] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L230] int retValue_acc ; [L231] int tmp ; [L235] FCALL select_helpers() [L236] FCALL select_features() [L237] CALL, EXPR valid_product() [L323] int retValue_acc ; [L326] retValue_acc = 1 [L327] RET return (retValue_acc); [L237] EXPR valid_product() [L237] tmp = valid_product() [L239] COND TRUE \read(tmp) [L241] FCALL setup() [L242] CALL runTest() [L221] CALL test() [L700] int splverifierCounter ; [L701] int tmp ; [L702] int tmp___0 ; [L703] int tmp___1 ; [L704] int tmp___2 ; [L707] splverifierCounter = 0 Loop: [L709] COND TRUE 1 [L711] COND TRUE splverifierCounter < 4 [L717] tmp = __VERIFIER_nondet_int() [L719] COND FALSE !(\read(tmp)) [L727] tmp___0 = __VERIFIER_nondet_int() [L729] COND FALSE !(\read(tmp___0)) [L737] tmp___2 = __VERIFIER_nondet_int() [L739] COND FALSE !(\read(tmp___2)) [L745] tmp___1 = __VERIFIER_nondet_int() [L747] COND TRUE \read(tmp___1) [L754] CALL timeShift() [L775] COND FALSE !(\read(pumpRunning)) [L782] COND TRUE \read(systemActive) [L784] CALL processEnvironment() [L856] int tmp ; [L859] COND FALSE !(\read(pumpRunning)) [L874] CALL processEnvironment__wrappee__lowWaterSensor() [L830] int tmp ; [L833] COND FALSE !(\read(pumpRunning)) [L848] CALL processEnvironment__wrappee__highWaterSensor() [L804] int tmp ; [L807] COND TRUE ! pumpRunning [L809] CALL, EXPR isHighWaterLevel() [L953] int retValue_acc ; [L954] int tmp ; [L955] int tmp___0 ; [L959] CALL, EXPR isHighWaterSensorDry() [L128] int retValue_acc ; [L131] COND TRUE waterLevel < 2 [L132] retValue_acc = 1 [L133] RET return (retValue_acc); [L959] EXPR isHighWaterSensorDry() [L959] tmp = isHighWaterSensorDry() [L961] COND TRUE \read(tmp) [L962] tmp___0 = 0 [L966] retValue_acc = tmp___0 [L967] RET return (retValue_acc); [L809] EXPR isHighWaterLevel() [L809] tmp = isHighWaterLevel() [L811] COND FALSE !(\read(tmp)) [L817] RET, FCALL processEnvironment__wrappee__base() [L848] RET processEnvironment__wrappee__highWaterSensor() [L874] RET processEnvironment__wrappee__lowWaterSensor() [L784] processEnvironment() [L790] CALL __utac_acc__Specification3_spec__1() [L264] int tmp ; [L265] int tmp___0 ; [L266] int tmp___1 ; [L270] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] RET return (retValue_acc); [L270] EXPR isMethaneLevelCritical() [L270] tmp = isMethaneLevelCritical() [L272] COND FALSE !(\read(tmp)) [L276] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] RET return (retValue_acc); [L276] EXPR getWaterLevel() [L276] tmp___0 = getWaterLevel() [L278] COND FALSE, RET !(tmp___0 == 2) [L790] RET __utac_acc__Specification3_spec__1() [L754] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...