./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product14_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_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product14_true-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/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 41585ee22e5b9d0bbbd49fc44fb82de5616beee1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:34:51,937 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:34:51,938 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:34:51,945 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:34:51,945 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:34:51,946 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:34:51,946 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:34:51,948 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:34:51,949 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:34:51,950 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:34:51,950 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:34:51,950 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:34:51,951 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:34:51,952 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:34:51,953 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:34:51,953 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:34:51,954 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:34:51,956 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:34:51,957 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:34:51,958 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:34:51,959 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:34:51,960 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:34:51,962 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:34:51,962 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:34:51,962 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:34:51,963 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:34:51,964 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:34:51,964 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:34:51,965 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:34:51,966 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:34:51,966 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:34:51,967 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:34:51,967 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:34:51,967 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:34:51,968 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:34:51,969 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:34:51,969 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 10:34:51,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:34:51,980 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:34:51,981 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 10:34:51,982 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 10:34:51,982 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 10:34:51,982 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 10:34:51,982 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 10:34:51,982 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 10:34:51,983 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 10:34:51,983 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 10:34:51,983 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 10:34:51,983 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:34:51,983 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:34:51,983 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:34:51,983 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:34:51,984 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:34:51,984 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:34:51,984 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 10:34:51,984 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 10:34:51,984 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 10:34:51,984 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:34:51,985 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:34:51,985 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 10:34:51,985 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:34:51,985 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 10:34:51,985 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:34:51,987 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:34:51,987 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 10:34:51,988 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:34:51,988 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 10:34:51,988 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 10:34:51,989 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 10:34:51,989 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_77eebfe0-999b-4966-9336-89458a7c5966/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 -> 41585ee22e5b9d0bbbd49fc44fb82de5616beee1 [2018-11-18 10:34:52,009 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:34:52,017 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:34:52,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:34:52,020 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:34:52,020 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:34:52,020 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec5_product14_true-unreach-call_false-termination.cil.c [2018-11-18 10:34:52,058 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/data/20c65bd2f/fc887f9feb8c4112bf40828818a2117e/FLAG1cf2cb2cf [2018-11-18 10:34:52,496 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:34:52,496 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/sv-benchmarks/c/product-lines/minepump_spec5_product14_true-unreach-call_false-termination.cil.c [2018-11-18 10:34:52,503 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/data/20c65bd2f/fc887f9feb8c4112bf40828818a2117e/FLAG1cf2cb2cf [2018-11-18 10:34:52,511 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/data/20c65bd2f/fc887f9feb8c4112bf40828818a2117e [2018-11-18 10:34:52,514 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:34:52,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:34:52,515 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:34:52,515 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:34:52,518 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:34:52,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae989df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52, skipping insertion in model container [2018-11-18 10:34:52,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:34:52,558 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:34:52,738 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:34:52,747 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:34:52,844 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:34:52,860 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:34:52,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52 WrapperNode [2018-11-18 10:34:52,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:34:52,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:34:52,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:34:52,862 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:34:52,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:34:52,901 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:34:52,901 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:34:52,901 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:34:52,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,909 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,910 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (1/1) ... [2018-11-18 10:34:52,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:34:52,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:34:52,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:34:52,923 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:34:52,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/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 10:34:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:34:52,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:34:52,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:34:53,437 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:34:53,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:34:53 BoogieIcfgContainer [2018-11-18 10:34:53,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:34:53,438 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 10:34:53,438 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 10:34:53,441 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 10:34:53,442 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:34:53,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 10:34:52" (1/3) ... [2018-11-18 10:34:53,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@150a06fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:34:53, skipping insertion in model container [2018-11-18 10:34:53,443 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:34:53,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:52" (2/3) ... [2018-11-18 10:34:53,444 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@150a06fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 10:34:53, skipping insertion in model container [2018-11-18 10:34:53,444 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 10:34:53,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:34:53" (3/3) ... [2018-11-18 10:34:53,447 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product14_true-unreach-call_false-termination.cil.c [2018-11-18 10:34:53,493 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:34:53,494 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 10:34:53,494 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 10:34:53,494 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 10:34:53,494 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:34:53,494 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:34:53,495 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 10:34:53,495 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:34:53,495 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 10:34:53,510 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2018-11-18 10:34:53,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2018-11-18 10:34:53,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:34:53,533 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:34:53,540 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:34:53,540 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] [2018-11-18 10:34:53,540 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 10:34:53,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2018-11-18 10:34:53,544 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2018-11-18 10:34:53,544 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:34:53,544 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:34:53,545 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:34:53,545 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] [2018-11-18 10:34:53,550 INFO L794 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 77];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 101];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 116];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 104];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 67];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 82];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 73];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 84];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 75];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 3#L899true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 76#L892true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 23#L907true main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 35#L183true assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 49#L155true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 97#L49true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 92#L820-3true [2018-11-18 10:34:53,551 INFO L796 eck$LassoCheckResult]: Loop: 92#L820-3true assume true; 90#L820-1true assume !false; 54#L821true assume test_~splverifierCounter~0 < 4; 4#L822true test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 8#L830true assume !(0 != test_~tmp~7); 11#L830-2true test_~tmp___0~1 := test_#t~nondet69;havoc test_#t~nondet69; 60#L840true assume !(0 != test_~tmp___0~1); 65#L840-2true test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 102#L850true assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 108#L726true assume { :end_inline_startSystem } true; 105#L858-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 25#L681true __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 18#L59true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 48#L579true assume !(0 != ~pumpRunning~0); 50#L579-2true assume !(0 != ~systemActive~0); 88#L586-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 41#L805true __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 20#L70true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 16#L70-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 6#L596true assume { :end_inline_timeShift } true; 92#L820-3true [2018-11-18 10:34:53,555 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:34:53,556 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2018-11-18 10:34:53,557 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:34:53,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:34:53,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:53,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:34:53,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:53,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:53,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:34:53,731 INFO L82 PathProgramCache]: Analyzing trace with hash -865311013, now seen corresponding path program 1 times [2018-11-18 10:34:53,731 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:34:53,731 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:34:53,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:53,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:34:53,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:34:53,773 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 10:34:53,774 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:34:53,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 10:34:53,777 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 10:34:53,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:34:53,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:34:53,787 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2018-11-18 10:34:53,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:34:53,820 INFO L93 Difference]: Finished difference Result 106 states and 132 transitions. [2018-11-18 10:34:53,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:34:53,821 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 132 transitions. [2018-11-18 10:34:53,823 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2018-11-18 10:34:53,826 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 96 states and 121 transitions. [2018-11-18 10:34:53,827 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 96 [2018-11-18 10:34:53,827 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 96 [2018-11-18 10:34:53,827 INFO L73 IsDeterministic]: Start isDeterministic. Operand 96 states and 121 transitions. [2018-11-18 10:34:53,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:34:53,828 INFO L705 BuchiCegarLoop]: Abstraction has 96 states and 121 transitions. [2018-11-18 10:34:53,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states and 121 transitions. [2018-11-18 10:34:53,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2018-11-18 10:34:53,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2018-11-18 10:34:53,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 121 transitions. [2018-11-18 10:34:53,850 INFO L728 BuchiCegarLoop]: Abstraction has 96 states and 121 transitions. [2018-11-18 10:34:53,850 INFO L608 BuchiCegarLoop]: Abstraction has 96 states and 121 transitions. [2018-11-18 10:34:53,850 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 10:34:53,850 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 96 states and 121 transitions. [2018-11-18 10:34:53,851 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2018-11-18 10:34:53,852 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:34:53,852 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:34:53,852 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:34:53,852 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:34:53,853 INFO L794 eck$LassoCheckResult]: Stem: 295#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 77];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 101];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 116];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 104];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 67];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 82];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 73];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 84];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 75];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 244#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 226#L899 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 227#L892 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 252#L907 main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 284#L183 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 302#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 310#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 242#L820-3 [2018-11-18 10:34:53,853 INFO L796 eck$LassoCheckResult]: Loop: 242#L820-3 assume true; 293#L820-1 assume !false; 294#L821 assume test_~splverifierCounter~0 < 4; 233#L822 test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 234#L830 assume !(0 != test_~tmp~7); 246#L830-2 test_~tmp___0~1 := test_#t~nondet69;havoc test_#t~nondet69; 251#L840 assume !(0 != test_~tmp___0~1); 235#L840-2 test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 313#L850 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 314#L726 assume { :end_inline_startSystem } true; 316#L858-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 288#L681 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 268#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 269#L579 assume !(0 != ~pumpRunning~0); 292#L579-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 264#L611 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 255#L603-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 254#L611-1 assume { :end_inline_processEnvironment } true; 276#L586-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 289#L805 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 272#L70 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 263#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 241#L596 assume { :end_inline_timeShift } true; 242#L820-3 [2018-11-18 10:34:53,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:34:53,853 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2018-11-18 10:34:53,853 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:34:53,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:34:53,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:53,854 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:34:53,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:53,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:53,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:53,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:34:53,907 INFO L82 PathProgramCache]: Analyzing trace with hash 902687649, now seen corresponding path program 1 times [2018-11-18 10:34:53,907 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:34:53,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:34:53,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:53,908 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:34:53,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:53,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:53,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:53,919 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:34:53,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1726354072, now seen corresponding path program 1 times [2018-11-18 10:34:53,920 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:34:53,920 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:34:53,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:53,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:34:53,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:53,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:34:54,005 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 10:34:54,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:34:54,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 10:34:54,130 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-11-18 10:34:54,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 10:34:54,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 10:34:54,162 INFO L87 Difference]: Start difference. First operand 96 states and 121 transitions. cyclomatic complexity: 27 Second operand 5 states. [2018-11-18 10:34:54,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:34:54,300 INFO L93 Difference]: Finished difference Result 271 states and 338 transitions. [2018-11-18 10:34:54,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 10:34:54,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 271 states and 338 transitions. [2018-11-18 10:34:54,306 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 124 [2018-11-18 10:34:54,308 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 271 states to 271 states and 338 transitions. [2018-11-18 10:34:54,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 271 [2018-11-18 10:34:54,308 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 271 [2018-11-18 10:34:54,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 271 states and 338 transitions. [2018-11-18 10:34:54,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 10:34:54,310 INFO L705 BuchiCegarLoop]: Abstraction has 271 states and 338 transitions. [2018-11-18 10:34:54,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states and 338 transitions. [2018-11-18 10:34:54,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 180. [2018-11-18 10:34:54,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2018-11-18 10:34:54,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 223 transitions. [2018-11-18 10:34:54,320 INFO L728 BuchiCegarLoop]: Abstraction has 180 states and 223 transitions. [2018-11-18 10:34:54,320 INFO L608 BuchiCegarLoop]: Abstraction has 180 states and 223 transitions. [2018-11-18 10:34:54,320 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 10:34:54,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 180 states and 223 transitions. [2018-11-18 10:34:54,322 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 124 [2018-11-18 10:34:54,323 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 10:34:54,323 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 10:34:54,323 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:34:54,323 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] [2018-11-18 10:34:54,324 INFO L794 eck$LassoCheckResult]: Stem: 677#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string25.base, #t~string25.offset := #Ultimate.alloc(30);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(9);call #t~string27.base, #t~string27.offset := #Ultimate.alloc(21);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);call #t~string34.base, #t~string34.offset := #Ultimate.alloc(30);call #t~string35.base, #t~string35.offset := #Ultimate.alloc(9);call #t~string36.base, #t~string36.offset := #Ultimate.alloc(25);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(13);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string45.base,#t~string45.offset := 79];#memory_int := #memory_int[#t~string45.base,1 + #t~string45.offset := 110];#memory_int := #memory_int[#t~string45.base,2 + #t~string45.offset := 0];call #t~string47.base, #t~string47.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string47.base,#t~string47.offset := 79];#memory_int := #memory_int[#t~string47.base,1 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,2 + #t~string47.offset := 102];#memory_int := #memory_int[#t~string47.base,3 + #t~string47.offset := 0];call #t~string49.base, #t~string49.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string49.base,#t~string49.offset := 44];#memory_int := #memory_int[#t~string49.base,1 + #t~string49.offset := 80];#memory_int := #memory_int[#t~string49.base,2 + #t~string49.offset := 117];#memory_int := #memory_int[#t~string49.base,3 + #t~string49.offset := 109];#memory_int := #memory_int[#t~string49.base,4 + #t~string49.offset := 112];#memory_int := #memory_int[#t~string49.base,5 + #t~string49.offset := 58];#memory_int := #memory_int[#t~string49.base,6 + #t~string49.offset := 0];call #t~string51.base, #t~string51.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string51.base,#t~string51.offset := 79];#memory_int := #memory_int[#t~string51.base,1 + #t~string51.offset := 110];#memory_int := #memory_int[#t~string51.base,2 + #t~string51.offset := 0];call #t~string53.base, #t~string53.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string53.base,#t~string53.offset := 79];#memory_int := #memory_int[#t~string53.base,1 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,2 + #t~string53.offset := 102];#memory_int := #memory_int[#t~string53.base,3 + #t~string53.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string55.base,#t~string55.offset := 41];#memory_int := #memory_int[#t~string55.base,1 + #t~string55.offset := 32];#memory_int := #memory_int[#t~string55.base,2 + #t~string55.offset := 0];call #t~string57.base, #t~string57.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string57.base,#t~string57.offset := 10];#memory_int := #memory_int[#t~string57.base,1 + #t~string57.offset := 0];call #t~string59.base, #t~string59.offset := #Ultimate.alloc(13);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string61.base,#t~string61.offset := 44];#memory_int := #memory_int[#t~string61.base,1 + #t~string61.offset := 77];#memory_int := #memory_int[#t~string61.base,2 + #t~string61.offset := 101];#memory_int := #memory_int[#t~string61.base,3 + #t~string61.offset := 116];#memory_int := #memory_int[#t~string61.base,4 + #t~string61.offset := 104];#memory_int := #memory_int[#t~string61.base,5 + #t~string61.offset := 58];#memory_int := #memory_int[#t~string61.base,6 + #t~string61.offset := 0];call #t~string63.base, #t~string63.offset := #Ultimate.alloc(5);#memory_int := #memory_int[#t~string63.base,#t~string63.offset := 67];#memory_int := #memory_int[#t~string63.base,1 + #t~string63.offset := 82];#memory_int := #memory_int[#t~string63.base,2 + #t~string63.offset := 73];#memory_int := #memory_int[#t~string63.base,3 + #t~string63.offset := 84];#memory_int := #memory_int[#t~string63.base,4 + #t~string63.offset := 0];call #t~string65.base, #t~string65.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string65.base,#t~string65.offset := 79];#memory_int := #memory_int[#t~string65.base,1 + #t~string65.offset := 75];#memory_int := #memory_int[#t~string65.base,2 + #t~string65.offset := 0];call #t~string67.base, #t~string67.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string67.base,#t~string67.offset := 41];#memory_int := #memory_int[#t~string67.base,1 + #t~string67.offset := 0];~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 625#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret3, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1;assume { :begin_inline_select_helpers } true; 609#L899 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 610#L892 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 635#L907 main_#t~ret3 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~1 := main_#t~ret3;havoc main_#t~ret3; 664#L183 assume 0 != main_~tmp~1;assume { :begin_inline_setup } true; 688#L155 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 704#L49 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 627#L820-3 [2018-11-18 10:34:54,324 INFO L796 eck$LassoCheckResult]: Loop: 627#L820-3 assume true; 678#L820-1 assume !false; 679#L821 assume test_~splverifierCounter~0 < 4; 617#L822 test_~tmp~7 := test_#t~nondet68;havoc test_#t~nondet68; 618#L830 assume !(0 != test_~tmp~7); 630#L830-2 test_~tmp___0~1 := test_#t~nondet69;havoc test_#t~nondet69; 634#L840 assume !(0 != test_~tmp___0~1); 616#L840-2 test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 708#L850 assume 0 != test_~tmp___2~0;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 709#L726 assume { :end_inline_startSystem } true; 711#L858-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 672#L681 __utac_acc__Specification5_spec__2_#t~ret0 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret0;havoc __utac_acc__Specification5_spec__2_#t~ret0; 651#L59 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 652#L579 assume !(0 != ~pumpRunning~0); 701#L579-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret39, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 738#L611 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true; 735#L603-1 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 732#L611-1 assume { :end_inline_processEnvironment } true; 730#L586-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret1, __utac_acc__Specification5_spec__3_#t~ret2, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 729#L805 __utac_acc__Specification5_spec__3_#t~ret1 := getWaterLevel_#res;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret1;havoc __utac_acc__Specification5_spec__3_#t~ret1; 657#L70 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 658#L681-1 __utac_acc__Specification5_spec__3_#t~ret2 := isPumpRunning_#res;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret2;havoc __utac_acc__Specification5_spec__3_#t~ret2; 706#L74 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 646#L70-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 626#L596 assume { :end_inline_timeShift } true; 627#L820-3 [2018-11-18 10:34:54,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:34:54,324 INFO L82 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2018-11-18 10:34:54,324 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:34:54,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:34:54,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:54,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:34:54,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:54,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:54,361 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:34:54,361 INFO L82 PathProgramCache]: Analyzing trace with hash -119661892, now seen corresponding path program 1 times [2018-11-18 10:34:54,362 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:34:54,362 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:34:54,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:54,363 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 10:34:54,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:54,372 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:34:54,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1149788147, now seen corresponding path program 1 times [2018-11-18 10:34:54,372 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 10:34:54,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 10:34:54,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:54,373 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:34:54,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:34:54,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:34:54,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:35:24,579 WARN L180 SmtUtils]: Spent 30.06 s on a formula simplification. DAG size of input: 399 DAG size of output: 397 [2018-11-18 10:35:40,732 WARN L180 SmtUtils]: Spent 16.15 s on a formula simplification that was a NOOP. DAG size: 395 [2018-11-18 10:35:40,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 10:35:40 BoogieIcfgContainer [2018-11-18 10:35:40,794 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 10:35:40,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:35:40,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:35:40,795 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:35:40,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:34:53" (3/4) ... [2018-11-18 10:35:40,797 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 10:35:40,835 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_77eebfe0-999b-4966-9336-89458a7c5966/bin-2019/uautomizer/witness.graphml [2018-11-18 10:35:40,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:35:40,836 INFO L168 Benchmark]: Toolchain (without parser) took 48321.95 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 222.3 MB). Free memory was 955.4 MB in the beginning and 835.4 MB in the end (delta: 120.0 MB). Peak memory consumption was 342.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:35:40,837 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:35:40,837 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:35:40,837 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:35:40,838 INFO L168 Benchmark]: Boogie Preprocessor took 21.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:35:40,838 INFO L168 Benchmark]: RCFGBuilder took 515.20 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: 64.6 MB). Peak memory consumption was 64.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:35:40,838 INFO L168 Benchmark]: BuchiAutomizer took 47356.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 840.5 MB in the end (delta: 228.9 MB). Peak memory consumption was 291.3 MB. Max. memory is 11.5 GB. [2018-11-18 10:35:40,838 INFO L168 Benchmark]: Witness Printer took 41.19 ms. Allocated memory is still 1.3 GB. Free memory was 840.5 MB in the beginning and 835.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:35:40,839 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 345.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.9 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -185.2 MB). Peak memory consumption was 32.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.25 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 515.20 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: 64.6 MB). Peak memory consumption was 64.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 47356.26 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 62.4 MB). Free memory was 1.1 GB in the beginning and 840.5 MB in the end (delta: 228.9 MB). Peak memory consumption was 291.3 MB. Max. memory is 11.5 GB. * Witness Printer took 41.19 ms. Allocated memory is still 1.3 GB. Free memory was 840.5 MB in the beginning and 835.4 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 180 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 47.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 46.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 91 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 180 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 296 SDtfs, 503 SDslu, 373 SDs, 0 SdLazy, 68 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 820]: 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, "Off"=0, ") "=33, "CRIT"=0, retValue_acc=0, "On"=0, ",Meth:"=0, "CRIT"=29, "Pump(System:"=0, methaneLevelCritical=0, "OK"=0, "__utac__get_this_argtype"=11, tmp=0, ")"=0, tmp___1=0, tmp=1, "libacc.c"=18, "__utac__get_this_argtype"=35, cleanupTimeShifts=4, "i > 0 && i <= this->argsCount"=24, switchedOnBeforeTS=0, "i > 0 && i <= this->argsCount"=16, "i > 0 && i <= this->argsCount"=12, "On"=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f6dcd44=0, \result=0, "Off"=36, "i > 0 && i <= this->argsCount"=0, "libacc.c"=0, "__utac__get_this_arg"=0, NULL=0, systemActive=1, waterLevel=1, \result=1, "libacc.c"=0, ",Pump:"=0, "Off"=39, ") "=0, "\n"=0, "Off"=0, tmp___0=0, \result=1, head=0, pumpRunning=0, ",Pump:"=38, "\n"=23, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23bd47c6=0, "__utac__get_this_argtype"=0, tmp=1, "libacc.c"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@551208a9=0, "__utac__get_this_argtype"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a679e5a=0, "On"=0, "i > 0 && i <= this->argsCount"=0, "libacc.c"=26, ")"=40, retValue_acc=1, ",Meth:"=28, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f4fce11=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4635cd6=161, "i > 0 && i <= this->argsCount"=19, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@38bf20cf=0, tmp___2=161, tmp___0=0, "libacc.c"=15, splverifierCounter=0, "Env(Water:%i"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@210e5b88=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a813dde=0, "Env(Water:%i"=31, head=0, "libacc.c"=0, tmp=0, "__utac__get_this_arg"=17, "__utac__get_this_arg"=0, "__utac__get_this_arg"=14, "libacc.c"=8, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "Pump(System:"=34, "OK"=27, "On"=37, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 820]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L494] FCALL "i > 0 && i <= this->argsCount" [L494] FCALL "libacc.c" [L495] FCALL "__utac__get_this_arg" [L501] FCALL "i > 0 && i <= this->argsCount" [L501] FCALL "libacc.c" [L502] FCALL "__utac__get_this_arg" [L540] FCALL "i > 0 && i <= this->argsCount" [L540] FCALL "libacc.c" [L541] FCALL "__utac__get_this_argtype" [L547] FCALL "i > 0 && i <= this->argsCount" [L547] FCALL "libacc.c" [L548] FCALL "__utac__get_this_argtype" [L690] FCALL "Pump(System:" [L694] FCALL "On" [L698] FCALL "Off" [L702] FCALL ",Pump:" [L706] FCALL "On" [L710] FCALL "Off" [L714] FCALL ") " [L716] FCALL "\n" [L782] FCALL "Env(Water:%i" [L783] FCALL ",Meth:" [L787] FCALL "CRIT" [L791] FCALL "OK" [L795] FCALL ")" [L43] int switchedOnBeforeTS ; [L92] int cleanupTimeShifts = 4; [L569] int pumpRunning = 0; [L570] int systemActive = 1; [L730] int waterLevel = 1; [L731] int methaneLevelCritical = 0; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L174] int retValue_acc ; [L175] int tmp ; [L179] FCALL select_helpers() [L180] FCALL select_features() [L181] CALL, EXPR valid_product() [L903] int retValue_acc ; [L906] retValue_acc = 1 [L907] RET return (retValue_acc); [L181] EXPR valid_product() [L181] tmp = valid_product() [L183] COND TRUE \read(tmp) [L185] FCALL setup() [L186] CALL runTest() [L164] CALL __utac_acc__Specification5_spec__1() [L48] RET switchedOnBeforeTS = 0 [L164] __utac_acc__Specification5_spec__1() [L165] CALL test() [L811] int splverifierCounter ; [L812] int tmp ; [L813] int tmp___0 ; [L814] int tmp___1 ; [L815] int tmp___2 ; [L818] splverifierCounter = 0 Loop: [L820] COND TRUE 1 [L822] COND TRUE splverifierCounter < 4 [L828] tmp = __VERIFIER_nondet_int() [L830] COND FALSE !(\read(tmp)) [L838] tmp___0 = __VERIFIER_nondet_int() [L840] COND FALSE !(\read(tmp___0)) [L848] tmp___2 = __VERIFIER_nondet_int() [L850] COND TRUE \read(tmp___2) [L852] CALL startSystem() [L725] RET systemActive = 1 [L852] startSystem() [L865] CALL timeShift() [L577] CALL __utac_acc__Specification5_spec__2() [L57] CALL, EXPR isPumpRunning() [L677] int retValue_acc ; [L680] retValue_acc = pumpRunning [L681] RET return (retValue_acc); [L57] EXPR isPumpRunning() [L57] RET switchedOnBeforeTS = isPumpRunning() [L577] __utac_acc__Specification5_spec__2() [L579] COND FALSE !(\read(pumpRunning)) [L586] COND TRUE \read(systemActive) [L588] CALL processEnvironment() [L608] int tmp ; [L611] COND FALSE !(\read(pumpRunning)) [L626] RET, FCALL processEnvironment__wrappee__methaneQuery() [L588] processEnvironment() [L594] CALL __utac_acc__Specification5_spec__3() [L63] int tmp ; [L64] int tmp___0 ; [L68] CALL, EXPR getWaterLevel() [L801] int retValue_acc ; [L804] retValue_acc = waterLevel [L805] RET return (retValue_acc); [L68] EXPR getWaterLevel() [L68] tmp = getWaterLevel() [L70] COND TRUE tmp != 2 [L72] CALL, EXPR isPumpRunning() [L677] int retValue_acc ; [L680] retValue_acc = pumpRunning [L681] RET return (retValue_acc); [L72] EXPR isPumpRunning() [L72] tmp___0 = isPumpRunning() [L74] COND FALSE, RET !(\read(tmp___0)) [L594] RET __utac_acc__Specification5_spec__3() [L865] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...