./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product43_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product43_false-unreach-call_false-termination.cil.c -s /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/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 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 16:51:07,895 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:51:07,896 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:51:07,905 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:51:07,905 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:51:07,906 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:51:07,907 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:51:07,908 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:51:07,909 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:51:07,910 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:51:07,911 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:51:07,911 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:51:07,912 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:51:07,912 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:51:07,914 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:51:07,914 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:51:07,915 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:51:07,916 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:51:07,918 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:51:07,919 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:51:07,920 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:51:07,920 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:51:07,922 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:51:07,923 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:51:07,923 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:51:07,923 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:51:07,924 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:51:07,925 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:51:07,926 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:51:07,926 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:51:07,927 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:51:07,927 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:51:07,927 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:51:07,927 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:51:07,928 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:51:07,929 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:51:07,929 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 16:51:07,940 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:51:07,940 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:51:07,941 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:51:07,941 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:51:07,942 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:51:07,942 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 16:51:07,942 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 16:51:07,942 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 16:51:07,942 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 16:51:07,942 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 16:51:07,942 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 16:51:07,942 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:51:07,942 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:51:07,943 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 16:51:07,943 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:51:07,943 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:51:07,943 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:51:07,943 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 16:51:07,943 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 16:51:07,943 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 16:51:07,943 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:51:07,944 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:51:07,944 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 16:51:07,944 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:51:07,944 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 16:51:07,944 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:51:07,944 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:51:07,944 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 16:51:07,944 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:51:07,944 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:51:07,944 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 16:51:07,947 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 16:51:07,947 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_aa674f14-604e-45a8-b056-4a6dddab1c5a/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 -> 63b48aee14c7431a4aa25f8de4f2dd8129d50ad4 [2018-11-18 16:51:07,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:51:07,976 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:51:07,978 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:51:07,979 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:51:07,979 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:51:07,979 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/../../sv-benchmarks/c/product-lines/minepump_spec1_product43_false-unreach-call_false-termination.cil.c [2018-11-18 16:51:08,015 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/data/021f745a7/eada934315b142c981f60cd4dee9a652/FLAGcb3007975 [2018-11-18 16:51:08,457 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:51:08,457 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/sv-benchmarks/c/product-lines/minepump_spec1_product43_false-unreach-call_false-termination.cil.c [2018-11-18 16:51:08,466 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/data/021f745a7/eada934315b142c981f60cd4dee9a652/FLAGcb3007975 [2018-11-18 16:51:08,474 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/data/021f745a7/eada934315b142c981f60cd4dee9a652 [2018-11-18 16:51:08,476 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:51:08,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 16:51:08,478 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:51:08,478 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:51:08,481 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:51:08,482 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,484 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 04:51:08, skipping insertion in model container [2018-11-18 16:51:08,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,489 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:51:08,517 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:51:08,711 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:51:08,720 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:51:08,824 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:51:08,845 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:51:08,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08 WrapperNode [2018-11-18 16:51:08,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:51:08,846 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 16:51:08,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 16:51:08,846 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 16:51:08,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,892 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 16:51:08,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:51:08,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:51:08,893 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:51:08,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,904 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,910 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (1/1) ... [2018-11-18 16:51:08,921 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:51:08,921 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:51:08,921 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:51:08,921 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:51:08,922 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/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 16:51:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 16:51:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:51:08,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:51:09,464 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:51:09,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:51:09 BoogieIcfgContainer [2018-11-18 16:51:09,465 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:51:09,466 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 16:51:09,466 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 16:51:09,468 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 16:51:09,469 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:51:09,469 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 04:51:08" (1/3) ... [2018-11-18 16:51:09,470 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4317333b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:51:09, skipping insertion in model container [2018-11-18 16:51:09,470 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:51:09,470 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:51:08" (2/3) ... [2018-11-18 16:51:09,470 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4317333b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 04:51:09, skipping insertion in model container [2018-11-18 16:51:09,470 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 16:51:09,471 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:51:09" (3/3) ... [2018-11-18 16:51:09,472 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product43_false-unreach-call_false-termination.cil.c [2018-11-18 16:51:09,506 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:51:09,506 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 16:51:09,506 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 16:51:09,506 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 16:51:09,507 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:51:09,507 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:51:09,507 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 16:51:09,507 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:51:09,507 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 16:51:09,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states. [2018-11-18 16:51:09,540 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2018-11-18 16:51:09,540 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:51:09,540 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:51:09,545 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:51:09,546 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:51:09,546 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 16:51:09,546 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 123 states. [2018-11-18 16:51:09,551 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2018-11-18 16:51:09,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:51:09,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:51:09,552 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:51:09,552 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:51:09,555 INFO L794 eck$LassoCheckResult]: Stem: 91#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~string14.base, #t~string14.offset := #Ultimate.alloc(13);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 110];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 79];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 102];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 102];#memory_int := #memory_int[#t~string18.base,3 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 44];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 80];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 117];#memory_int := #memory_int[#t~string20.base,3 + #t~string20.offset := 109];#memory_int := #memory_int[#t~string20.base,4 + #t~string20.offset := 112];#memory_int := #memory_int[#t~string20.base,5 + #t~string20.offset := 58];#memory_int := #memory_int[#t~string20.base,6 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 41];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 32];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 10];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(21);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(30);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(9);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 58#L923true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 108#L916true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 61#L931true main_#t~ret36 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; 50#L521true assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 111#L495true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 89#L344-3true [2018-11-18 16:51:09,556 INFO L796 eck$LassoCheckResult]: Loop: 89#L344-3true assume true; 87#L344-1true assume !false; 42#L345true assume test_~splverifierCounter~0 < 4; 124#L346true test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; 5#L354true assume !(0 != test_~tmp~3); 8#L354-2true test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; 63#L364true assume !(0 != test_~tmp___0~1); 64#L364-2true test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 105#L374true assume 0 != test_~tmp___2~0; 84#L380-2true assume { :begin_inline_timeShift } true; 45#L155true assume !(0 != ~pumpRunning~0); 60#L155-2true assume !(0 != ~systemActive~0); 110#L162-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;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; 125#L90-1true __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 103#L418true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 104#L418-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 34#L172true assume { :end_inline_timeShift } true; 89#L344-3true [2018-11-18 16:51:09,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:51:09,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2018-11-18 16:51:09,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:51:09,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:51:09,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:09,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:51:09,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:09,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:09,720 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:51:09,720 INFO L82 PathProgramCache]: Analyzing trace with hash 1530264179, now seen corresponding path program 1 times [2018-11-18 16:51:09,720 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:51:09,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:51:09,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:09,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:51:09,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:09,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:51:09,735 INFO L82 PathProgramCache]: Analyzing trace with hash 598582575, now seen corresponding path program 1 times [2018-11-18 16:51:09,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:51:09,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:51:09,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:09,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:51:09,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:51:09,876 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 16:51:09,878 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:51:09,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 16:51:09,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 16:51:09,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-11-18 16:51:09,951 INFO L87 Difference]: Start difference. First operand 123 states. Second operand 6 states. [2018-11-18 16:51:10,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:51:10,133 INFO L93 Difference]: Finished difference Result 299 states and 383 transitions. [2018-11-18 16:51:10,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 16:51:10,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 299 states and 383 transitions. [2018-11-18 16:51:10,141 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 193 [2018-11-18 16:51:10,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 299 states to 269 states and 353 transitions. [2018-11-18 16:51:10,148 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 269 [2018-11-18 16:51:10,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 269 [2018-11-18 16:51:10,149 INFO L73 IsDeterministic]: Start isDeterministic. Operand 269 states and 353 transitions. [2018-11-18 16:51:10,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:51:10,151 INFO L705 BuchiCegarLoop]: Abstraction has 269 states and 353 transitions. [2018-11-18 16:51:10,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states and 353 transitions. [2018-11-18 16:51:10,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 164. [2018-11-18 16:51:10,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2018-11-18 16:51:10,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 215 transitions. [2018-11-18 16:51:10,179 INFO L728 BuchiCegarLoop]: Abstraction has 164 states and 215 transitions. [2018-11-18 16:51:10,179 INFO L608 BuchiCegarLoop]: Abstraction has 164 states and 215 transitions. [2018-11-18 16:51:10,180 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 16:51:10,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 164 states and 215 transitions. [2018-11-18 16:51:10,181 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 118 [2018-11-18 16:51:10,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:51:10,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:51:10,182 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:51:10,182 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 16:51:10,183 INFO L794 eck$LassoCheckResult]: Stem: 540#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~string14.base, #t~string14.offset := #Ultimate.alloc(13);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 110];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 79];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 102];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 102];#memory_int := #memory_int[#t~string18.base,3 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 44];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 80];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 117];#memory_int := #memory_int[#t~string20.base,3 + #t~string20.offset := 109];#memory_int := #memory_int[#t~string20.base,4 + #t~string20.offset := 112];#memory_int := #memory_int[#t~string20.base,5 + #t~string20.offset := 58];#memory_int := #memory_int[#t~string20.base,6 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 41];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 32];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 10];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(21);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(30);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(9);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 453#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 454#L923 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 517#L916 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 519#L931 main_#t~ret36 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; 510#L521 assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 511#L495 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 483#L344-3 [2018-11-18 16:51:10,183 INFO L796 eck$LassoCheckResult]: Loop: 483#L344-3 assume true; 535#L344-1 assume !false; 494#L345 assume test_~splverifierCounter~0 < 4; 495#L346 test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; 444#L354 assume !(0 != test_~tmp~3); 446#L354-2 test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; 451#L364 assume !(0 != test_~tmp___0~1); 521#L364-2 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 522#L374 assume 0 != test_~tmp___2~0; 532#L380-2 assume { :begin_inline_timeShift } true; 500#L155 assume !(0 != ~pumpRunning~0); 501#L155-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 518#L187 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 530#L179-1 assume { :end_inline_processEnvironment__wrappee__base } true; 474#L187-1 assume { :end_inline_processEnvironment } true; 534#L162-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;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; 550#L90-1 __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 545#L418 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 516#L418-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 482#L172 assume { :end_inline_timeShift } true; 483#L344-3 [2018-11-18 16:51:10,183 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:51:10,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2018-11-18 16:51:10,184 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:51:10,184 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:51:10,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:10,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:51:10,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:10,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:10,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:51:10,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1381575328, now seen corresponding path program 1 times [2018-11-18 16:51:10,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:51:10,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:51:10,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:10,228 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:51:10,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:10,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:51:10,246 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 16:51:10,246 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:51:10,246 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 16:51:10,247 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 16:51:10,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 16:51:10,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 16:51:10,247 INFO L87 Difference]: Start difference. First operand 164 states and 215 transitions. cyclomatic complexity: 54 Second operand 3 states. [2018-11-18 16:51:10,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:51:10,314 INFO L93 Difference]: Finished difference Result 216 states and 271 transitions. [2018-11-18 16:51:10,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 16:51:10,315 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 216 states and 271 transitions. [2018-11-18 16:51:10,317 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 159 [2018-11-18 16:51:10,318 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 216 states to 216 states and 271 transitions. [2018-11-18 16:51:10,319 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 216 [2018-11-18 16:51:10,320 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 216 [2018-11-18 16:51:10,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 216 states and 271 transitions. [2018-11-18 16:51:10,321 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 16:51:10,321 INFO L705 BuchiCegarLoop]: Abstraction has 216 states and 271 transitions. [2018-11-18 16:51:10,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states and 271 transitions. [2018-11-18 16:51:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2018-11-18 16:51:10,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2018-11-18 16:51:10,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 271 transitions. [2018-11-18 16:51:10,330 INFO L728 BuchiCegarLoop]: Abstraction has 216 states and 271 transitions. [2018-11-18 16:51:10,330 INFO L608 BuchiCegarLoop]: Abstraction has 216 states and 271 transitions. [2018-11-18 16:51:10,330 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 16:51:10,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 216 states and 271 transitions. [2018-11-18 16:51:10,331 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 159 [2018-11-18 16:51:10,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 16:51:10,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 16:51:10,332 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:51:10,332 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] [2018-11-18 16:51:10,333 INFO L794 eck$LassoCheckResult]: Stem: 939#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~string14.base, #t~string14.offset := #Ultimate.alloc(13);call #t~string16.base, #t~string16.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string16.base,#t~string16.offset := 79];#memory_int := #memory_int[#t~string16.base,1 + #t~string16.offset := 110];#memory_int := #memory_int[#t~string16.base,2 + #t~string16.offset := 0];call #t~string18.base, #t~string18.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string18.base,#t~string18.offset := 79];#memory_int := #memory_int[#t~string18.base,1 + #t~string18.offset := 102];#memory_int := #memory_int[#t~string18.base,2 + #t~string18.offset := 102];#memory_int := #memory_int[#t~string18.base,3 + #t~string18.offset := 0];call #t~string20.base, #t~string20.offset := #Ultimate.alloc(7);#memory_int := #memory_int[#t~string20.base,#t~string20.offset := 44];#memory_int := #memory_int[#t~string20.base,1 + #t~string20.offset := 80];#memory_int := #memory_int[#t~string20.base,2 + #t~string20.offset := 117];#memory_int := #memory_int[#t~string20.base,3 + #t~string20.offset := 109];#memory_int := #memory_int[#t~string20.base,4 + #t~string20.offset := 112];#memory_int := #memory_int[#t~string20.base,5 + #t~string20.offset := 58];#memory_int := #memory_int[#t~string20.base,6 + #t~string20.offset := 0];call #t~string22.base, #t~string22.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string22.base,#t~string22.offset := 79];#memory_int := #memory_int[#t~string22.base,1 + #t~string22.offset := 110];#memory_int := #memory_int[#t~string22.base,2 + #t~string22.offset := 0];call #t~string24.base, #t~string24.offset := #Ultimate.alloc(4);#memory_int := #memory_int[#t~string24.base,#t~string24.offset := 79];#memory_int := #memory_int[#t~string24.base,1 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,2 + #t~string24.offset := 102];#memory_int := #memory_int[#t~string24.base,3 + #t~string24.offset := 0];call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);#memory_int := #memory_int[#t~string26.base,#t~string26.offset := 41];#memory_int := #memory_int[#t~string26.base,1 + #t~string26.offset := 32];#memory_int := #memory_int[#t~string26.base,2 + #t~string26.offset := 0];call #t~string28.base, #t~string28.offset := #Ultimate.alloc(2);#memory_int := #memory_int[#t~string28.base,#t~string28.offset := 10];#memory_int := #memory_int[#t~string28.base,1 + #t~string28.offset := 0];call #t~string55.base, #t~string55.offset := #Ultimate.alloc(30);call #t~string56.base, #t~string56.offset := #Ultimate.alloc(9);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(21);call #t~string58.base, #t~string58.offset := #Ultimate.alloc(30);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(9);call #t~string60.base, #t~string60.offset := #Ultimate.alloc(21);call #t~string64.base, #t~string64.offset := #Ultimate.alloc(30);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(9);call #t~string66.base, #t~string66.offset := #Ultimate.alloc(25);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(30);call #t~string68.base, #t~string68.offset := #Ultimate.alloc(9);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 838#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret36, main_~retValue_acc~6, main_~tmp~5;havoc main_~retValue_acc~6;havoc main_~tmp~5;assume { :begin_inline_select_helpers } true; 839#L923 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 907#L916 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 910#L931 main_#t~ret36 := valid_product_#res;assume { :end_inline_valid_product } true;main_~tmp~5 := main_#t~ret36;havoc main_#t~ret36; 897#L521 assume 0 != main_~tmp~5;assume { :begin_inline_setup } true; 898#L495 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 870#L344-3 [2018-11-18 16:51:10,333 INFO L796 eck$LassoCheckResult]: Loop: 870#L344-3 assume true; 933#L344-1 assume !false; 934#L345 assume test_~splverifierCounter~0 < 4; 952#L346 test_~tmp~3 := test_#t~nondet30;havoc test_#t~nondet30; 830#L354 assume !(0 != test_~tmp~3); 832#L354-2 test_~tmp___0~1 := test_#t~nondet31;havoc test_#t~nondet31; 836#L364 assume !(0 != test_~tmp___0~1); 912#L364-2 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 913#L374 assume 0 != test_~tmp___2~0; 926#L380-2 assume { :begin_inline_timeShift } true; 887#L155 assume !(0 != ~pumpRunning~0); 888#L155-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 932#L187 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~5, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~5;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~2;havoc isHighWaterSensorDry_~retValue_acc~2; 919#L130 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~2; 920#L135 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 842#L307 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 843#L307-2 isHighWaterLevel_~retValue_acc~5 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~5; 844#L313 processEnvironment_#t~ret10 := isHighWaterLevel_#res;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0 := processEnvironment_#t~ret10;havoc processEnvironment_#t~ret10; 894#L191 assume !(0 != processEnvironment_~tmp~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 896#L179 assume { :end_inline_processEnvironment__wrappee__base } true; 860#L187-1 assume { :end_inline_processEnvironment } true; 931#L162-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret34, __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_~tmp~4, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~4;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;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; 951#L90-1 __utac_acc__Specification1_spec__1_#t~ret34 := isMethaneLevelCritical_#res;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4 := __utac_acc__Specification1_spec__1_#t~ret34;havoc __utac_acc__Specification1_spec__1_#t~ret34; 953#L418 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4); 1005#L418-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 869#L172 assume { :end_inline_timeShift } true; 870#L344-3 [2018-11-18 16:51:10,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:51:10,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2018-11-18 16:51:10,334 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:51:10,334 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:51:10,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:10,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:51:10,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:10,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:51:10,371 INFO L82 PathProgramCache]: Analyzing trace with hash -648106264, now seen corresponding path program 1 times [2018-11-18 16:51:10,371 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:51:10,371 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:51:10,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:10,372 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 16:51:10,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:10,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:10,381 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:51:10,382 INFO L82 PathProgramCache]: Analyzing trace with hash -774547540, now seen corresponding path program 1 times [2018-11-18 16:51:10,382 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:51:10,385 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:51:10,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:10,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:51:10,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:51:10,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:51:10,605 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2018-11-18 16:51:54,846 WARN L180 SmtUtils]: Spent 44.21 s on a formula simplification. DAG size of input: 395 DAG size of output: 393 [2018-11-18 16:52:06,565 WARN L180 SmtUtils]: Spent 11.72 s on a formula simplification that was a NOOP. DAG size: 393 [2018-11-18 16:52:06,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 04:52:06 BoogieIcfgContainer [2018-11-18 16:52:06,646 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 16:52:06,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:52:06,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:52:06,646 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:52:06,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:51:09" (3/4) ... [2018-11-18 16:52:06,650 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-18 16:52:06,698 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_aa674f14-604e-45a8-b056-4a6dddab1c5a/bin-2019/uautomizer/witness.graphml [2018-11-18 16:52:06,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:52:06,699 INFO L168 Benchmark]: Toolchain (without parser) took 58221.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 956.6 MB in the beginning and 991.7 MB in the end (delta: -35.2 MB). Peak memory consumption was 131.5 MB. Max. memory is 11.5 GB. [2018-11-18 16:52:06,699 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:52:06,700 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:52:06,700 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.55 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:52:06,700 INFO L168 Benchmark]: Boogie Preprocessor took 28.12 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 16:52:06,700 INFO L168 Benchmark]: RCFGBuilder took 544.09 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: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:52:06,701 INFO L168 Benchmark]: BuchiAutomizer took 57180.24 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 28.3 MB). Free memory was 1.1 GB in the beginning and 996.4 MB in the end (delta: 61.6 MB). Peak memory consumption was 194.8 MB. Max. memory is 11.5 GB. [2018-11-18 16:52:06,703 INFO L168 Benchmark]: Witness Printer took 51.97 ms. Allocated memory is still 1.2 GB. Free memory was 996.4 MB in the beginning and 991.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:52:06,705 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 367.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 956.6 MB in the beginning and 1.1 GB in the end (delta: -173.2 MB). Peak memory consumption was 31.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.55 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.12 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 544.09 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: 63.8 MB). Peak memory consumption was 63.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 57180.24 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 28.3 MB). Free memory was 1.1 GB in the beginning and 996.4 MB in the end (delta: 61.6 MB). Peak memory consumption was 194.8 MB. Max. memory is 11.5 GB. * Witness Printer took 51.97 ms. Allocated memory is still 1.2 GB. Free memory was 996.4 MB in the beginning and 991.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 216 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 57.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 56.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 105 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 216 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 294 SDtfs, 686 SDslu, 821 SDs, 0 SdLazy, 64 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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: 344]: 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, retValue_acc=0, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=29, "Env(Water:%i"=11, retValue_acc=0, "OK"=12, "__utac__get_this_arg"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@173a1a22=0, "i > 0 && i <= this->argsCount"=24, "libacc.c"=28, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f0f2390=0, retValue_acc=1, tmp___0=0, retValue_acc=0, tmp=0, "libacc.c"=0, "__utac__get_this_argtype"=0, "libacc.c"=0, "__utac__get_this_argtype"=0, "libacc.c"=8, "i > 0 && i <= this->argsCount"=0, tmp___1=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d674f9d=0, ",Pump:"=36, "\n"=31, cleanupTimeShifts=4, "Pump(System:"=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4188e923=0, NULL=0, systemActive=1, waterLevel=1, "__utac__get_this_argtype"=39, "Pump(System:"=0, "i > 0 && i <= this->argsCount"=27, \result=0, "__utac__get_this_arg"=23, "i > 0 && i <= this->argsCount"=0, "i > 0 && i <= this->argsCount"=0, "__utac__get_this_arg"=0, "libacc.c"=0, \result=1, "Off"=18, head=0, pumpRunning=0, "__utac__get_this_arg"=20, \result=0, "__utac__get_this_argtype"=37, retValue_acc=1, "On"=0, tmp=0, tmp=1, "Off"=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@477e57e7=163, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d3bb0c7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@183619a4=0, "i > 0 && i <= this->argsCount"=38, "On"=35, tmp=1, "CRIT"=15, tmp___2=163, tmp___0=0, ") "=33, splverifierCounter=0, "Env(Water:%i"=0, ",Meth:"=0, "libacc.c"=0, ")"=0, "OK"=0, "CRIT"=0, \result=0, ")"=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a3b6f56=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5103f067=0, tmp=0, "libacc.c"=26, head=0, ") "=0, "\n"=0, "Off"=34, "Off"=0, ",Pump:"=0, "On"=17, ",Meth:"=16, "On"=0, "libacc.c"=22} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 344]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L99] FCALL "Env(Water:%i" [L100] FCALL ",Meth:" [L104] FCALL "CRIT" [L108] FCALL "OK" [L112] FCALL ")" [L267] FCALL "Pump(System:" [L271] FCALL "On" [L275] FCALL "Off" [L279] FCALL ",Pump:" [L283] FCALL "On" [L287] FCALL "Off" [L291] FCALL ") " [L293] FCALL "\n" [L832] FCALL "i > 0 && i <= this->argsCount" [L832] FCALL "libacc.c" [L833] FCALL "__utac__get_this_arg" [L839] FCALL "i > 0 && i <= this->argsCount" [L839] FCALL "libacc.c" [L840] FCALL "__utac__get_this_arg" [L878] FCALL "i > 0 && i <= this->argsCount" [L878] FCALL "libacc.c" [L879] FCALL "__utac__get_this_argtype" [L885] FCALL "i > 0 && i <= this->argsCount" [L885] FCALL "libacc.c" [L886] FCALL "__utac__get_this_argtype" [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L147] int pumpRunning = 0; [L148] int systemActive = 1; [L436] int cleanupTimeShifts = 4; [L704] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L512] int retValue_acc ; [L513] int tmp ; [L517] FCALL select_helpers() [L518] FCALL select_features() [L519] CALL, EXPR valid_product() [L927] int retValue_acc ; [L930] retValue_acc = 1 [L931] RET return (retValue_acc); [L519] EXPR valid_product() [L519] tmp = valid_product() [L521] COND TRUE \read(tmp) [L523] FCALL setup() [L524] CALL runTest() [L503] CALL test() [L335] int splverifierCounter ; [L336] int tmp ; [L337] int tmp___0 ; [L338] int tmp___1 ; [L339] int tmp___2 ; [L342] splverifierCounter = 0 Loop: [L344] COND TRUE 1 [L346] COND TRUE splverifierCounter < 4 [L352] tmp = __VERIFIER_nondet_int() [L354] COND FALSE !(\read(tmp)) [L362] tmp___0 = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp___0)) [L372] tmp___2 = __VERIFIER_nondet_int() [L374] COND TRUE \read(tmp___2) [L389] CALL timeShift() [L155] COND FALSE !(\read(pumpRunning)) [L162] COND TRUE \read(systemActive) [L164] CALL processEnvironment() [L184] int tmp ; [L187] COND TRUE ! pumpRunning [L189] CALL, EXPR isHighWaterLevel() [L299] int retValue_acc ; [L300] int tmp ; [L301] int tmp___0 ; [L305] CALL, EXPR isHighWaterSensorDry() [L127] int retValue_acc ; [L130] COND TRUE waterLevel < 2 [L131] retValue_acc = 1 [L132] RET return (retValue_acc); [L305] EXPR isHighWaterSensorDry() [L305] tmp = isHighWaterSensorDry() [L307] COND TRUE \read(tmp) [L308] tmp___0 = 0 [L312] retValue_acc = tmp___0 [L313] RET return (retValue_acc); [L189] EXPR isHighWaterLevel() [L189] tmp = isHighWaterLevel() [L191] COND FALSE !(\read(tmp)) [L197] RET, FCALL processEnvironment__wrappee__base() [L164] processEnvironment() [L170] CALL __utac_acc__Specification1_spec__1() [L411] int tmp ; [L412] int tmp___0 ; [L416] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] RET return (retValue_acc); [L416] EXPR isMethaneLevelCritical() [L416] tmp = isMethaneLevelCritical() [L418] COND FALSE, RET !(\read(tmp)) [L170] RET __utac_acc__Specification1_spec__1() [L389] timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...