./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec1_product36_false-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/product-lines/minepump_spec1_product36_false-unreach-call_false-termination.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 9eb4b34c09edb6dce3c64c5d30aa92b31214d915 ........................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-91b1670 [2018-11-28 23:54:59,820 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:54:59,822 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:54:59,834 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:54:59,834 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:54:59,835 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:54:59,837 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:54:59,839 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:54:59,841 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:54:59,842 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:54:59,843 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:54:59,843 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:54:59,844 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:54:59,845 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:54:59,847 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:54:59,847 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:54:59,848 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:54:59,850 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:54:59,853 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:54:59,855 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:54:59,856 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:54:59,860 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:54:59,863 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:54:59,863 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:54:59,863 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:54:59,865 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:54:59,866 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:54:59,870 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:54:59,871 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:54:59,874 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:54:59,874 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:54:59,875 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:54:59,876 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:54:59,876 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:54:59,877 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:54:59,878 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:54:59,878 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:54:59,904 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:54:59,904 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:54:59,906 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:54:59,906 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:54:59,906 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:54:59,907 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:54:59,907 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:54:59,907 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:54:59,907 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:54:59,907 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:54:59,907 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:54:59,908 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:54:59,908 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:54:59,908 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:54:59,908 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:54:59,908 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:54:59,908 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:54:59,909 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:54:59,910 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:54:59,910 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:54:59,910 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:54:59,911 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:54:59,911 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:54:59,911 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:54:59,911 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:54:59,911 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:54:59,912 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:54:59,913 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:54:59,913 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:54:59,913 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:54:59,914 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:54:59,914 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:54:59,915 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> 9eb4b34c09edb6dce3c64c5d30aa92b31214d915 [2018-11-28 23:54:59,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:54:59,980 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:54:59,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:54:59,988 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:54:59,988 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:54:59,989 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec1_product36_false-unreach-call_false-termination.cil.c [2018-11-28 23:55:00,049 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e77bdade/d2f4b1789bfc4e81bcac16305d48d17b/FLAG2de77bb36 [2018-11-28 23:55:00,573 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:55:00,574 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec1_product36_false-unreach-call_false-termination.cil.c [2018-11-28 23:55:00,589 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e77bdade/d2f4b1789bfc4e81bcac16305d48d17b/FLAG2de77bb36 [2018-11-28 23:55:00,882 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e77bdade/d2f4b1789bfc4e81bcac16305d48d17b [2018-11-28 23:55:00,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:55:00,890 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:55:00,891 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:55:00,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:55:00,899 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:55:00,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:00" (1/1) ... [2018-11-28 23:55:00,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e45167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:00, skipping insertion in model container [2018-11-28 23:55:00,907 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:55:00" (1/1) ... [2018-11-28 23:55:00,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:55:00,989 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:55:01,355 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:55:01,371 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:55:01,480 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:55:01,529 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:55:01,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01 WrapperNode [2018-11-28 23:55:01,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:55:01,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:55:01,531 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:55:01,532 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:55:01,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (1/1) ... [2018-11-28 23:55:01,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (1/1) ... [2018-11-28 23:55:01,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:55:01,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:55:01,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:55:01,689 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:55:01,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (1/1) ... [2018-11-28 23:55:01,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (1/1) ... [2018-11-28 23:55:01,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (1/1) ... [2018-11-28 23:55:01,709 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (1/1) ... [2018-11-28 23:55:01,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (1/1) ... [2018-11-28 23:55:01,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (1/1) ... [2018-11-28 23:55:01,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (1/1) ... [2018-11-28 23:55:01,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:55:01,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:55:01,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:55:01,734 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:55:01,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-11-28 23:55:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:55:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 23:55:01,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:55:01,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:55:03,142 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:55:03,142 INFO L280 CfgBuilder]: Removed 102 assue(true) statements. [2018-11-28 23:55:03,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:03 BoogieIcfgContainer [2018-11-28 23:55:03,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:55:03,144 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:55:03,144 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:55:03,147 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:55:03,148 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:55:03,148 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:55:00" (1/3) ... [2018-11-28 23:55:03,149 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1050e76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:55:03, skipping insertion in model container [2018-11-28 23:55:03,150 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:55:03,150 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:55:01" (2/3) ... [2018-11-28 23:55:03,150 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1050e76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:55:03, skipping insertion in model container [2018-11-28 23:55:03,150 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:55:03,150 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:03" (3/3) ... [2018-11-28 23:55:03,152 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product36_false-unreach-call_false-termination.cil.c [2018-11-28 23:55:03,211 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:55:03,212 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:55:03,212 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:55:03,212 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:55:03,212 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:55:03,212 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:55:03,212 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:55:03,212 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:55:03,213 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:55:03,231 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2018-11-28 23:55:03,259 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2018-11-28 23:55:03,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:55:03,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:55:03,269 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:55:03,270 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:55:03,270 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:55:03,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states. [2018-11-28 23:55:03,276 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2018-11-28 23:55:03,276 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:55:03,277 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:55:03,280 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:55:03,280 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:55:03,285 INFO L794 eck$LassoCheckResult]: Stem: 42#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string3.base, #t~string3.offset := #Ultimate.alloc(13);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string5.base, #t~string5.offset, 1);call write~init~int(110, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 2 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string9.base, #t~string9.offset, 1);call write~init~int(80, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(117, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(109, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(112, #t~string9.base, 4 + #t~string9.offset, 1);call write~init~int(58, #t~string9.base, 5 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 6 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string15.base, #t~string15.offset, 1);call write~init~int(32, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(77, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(101, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(116, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(104, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string24.base, #t~string24.offset, 1);call write~init~int(82, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(73, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(84, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 4 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(75, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(30);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(9);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(21);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~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(25);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);~cleanupTimeShifts~0 := 4; 16#L-1true havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 34#L428true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 39#L436true main_#t~ret71 := valid_product_#res;main_~tmp~7 := main_#t~ret71;havoc main_#t~ret71; 43#L915true assume 0 != main_~tmp~7; 18#L892true havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 5#L815-1true [2018-11-28 23:55:03,286 INFO L796 eck$LassoCheckResult]: Loop: 5#L815-1true assume !false; 53#L345true assume test_~splverifierCounter~0 < 4; 78#L346true test_~tmp~2 := test_#t~nondet29;havoc test_#t~nondet29; 8#L354true assume !(0 != test_~tmp~2); 11#L354-1true test_~tmp___0~1 := test_#t~nondet30;havoc test_#t~nondet30; 69#L364true assume !(0 != test_~tmp___0~1); 70#L364-1true test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 56#L374true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 61#L382-1true assume !(0 != ~pumpRunning~0); 79#L68true assume !(0 != ~systemActive~0); 72#L75true havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 30#L282true __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 28#L815true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 5#L815-1true [2018-11-28 23:55:03,292 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:55:03,293 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-11-28 23:55:03,295 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:55:03,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:55:03,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:03,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:55:03,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:55:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:55:03,590 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:55:03,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1671986804, now seen corresponding path program 1 times [2018-11-28 23:55:03,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:55:03,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:55:03,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:03,592 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:55:03,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:03,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:55:03,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:55:03,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:55:03,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:55:03,668 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:55:03,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:55:03,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:55:03,686 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 3 states. [2018-11-28 23:55:03,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:55:03,899 INFO L93 Difference]: Finished difference Result 148 states and 210 transitions. [2018-11-28 23:55:03,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:55:03,902 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 210 transitions. [2018-11-28 23:55:03,916 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2018-11-28 23:55:03,933 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 134 states and 195 transitions. [2018-11-28 23:55:03,935 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 134 [2018-11-28 23:55:03,938 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 134 [2018-11-28 23:55:03,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 134 states and 195 transitions. [2018-11-28 23:55:03,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:55:03,943 INFO L705 BuchiCegarLoop]: Abstraction has 134 states and 195 transitions. [2018-11-28 23:55:03,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states and 195 transitions. [2018-11-28 23:55:03,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2018-11-28 23:55:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2018-11-28 23:55:04,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2018-11-28 23:55:04,002 INFO L728 BuchiCegarLoop]: Abstraction has 132 states and 192 transitions. [2018-11-28 23:55:04,002 INFO L608 BuchiCegarLoop]: Abstraction has 132 states and 192 transitions. [2018-11-28 23:55:04,002 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:55:04,002 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 132 states and 192 transitions. [2018-11-28 23:55:04,012 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2018-11-28 23:55:04,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:55:04,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:55:04,013 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:55:04,015 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:55:04,016 INFO L794 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string3.base, #t~string3.offset := #Ultimate.alloc(13);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string5.base, #t~string5.offset, 1);call write~init~int(110, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 2 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string9.base, #t~string9.offset, 1);call write~init~int(80, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(117, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(109, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(112, #t~string9.base, 4 + #t~string9.offset, 1);call write~init~int(58, #t~string9.base, 5 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 6 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string15.base, #t~string15.offset, 1);call write~init~int(32, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(77, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(101, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(116, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(104, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string24.base, #t~string24.offset, 1);call write~init~int(82, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(73, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(84, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 4 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(75, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(30);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(9);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(21);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~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(25);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);~cleanupTimeShifts~0 := 4; 259#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 260#L428 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 277#L436 main_#t~ret71 := valid_product_#res;main_~tmp~7 := main_#t~ret71;havoc main_#t~ret71; 284#L915 assume 0 != main_~tmp~7; 262#L892 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 263#L815-1 [2018-11-28 23:55:04,016 INFO L796 eck$LassoCheckResult]: Loop: 263#L815-1 assume !false; 324#L345 assume test_~splverifierCounter~0 < 4; 323#L346 test_~tmp~2 := test_#t~nondet29;havoc test_#t~nondet29; 245#L354 assume !(0 != test_~tmp~2); 247#L354-1 test_~tmp___0~1 := test_#t~nondet30;havoc test_#t~nondet30; 309#L364 assume !(0 != test_~tmp___0~1); 310#L364-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 300#L374 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 301#L382-1 assume !(0 != ~pumpRunning~0); 286#L68 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret0, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 308#L100 assume !(0 == ~pumpRunning~0); 303#L75 havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 328#L282 __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 326#L815 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 263#L815-1 [2018-11-28 23:55:04,016 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:55:04,017 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-11-28 23:55:04,017 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:55:04,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:55:04,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:04,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:55:04,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:55:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:55:04,160 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:55:04,160 INFO L82 PathProgramCache]: Analyzing trace with hash -323593893, now seen corresponding path program 1 times [2018-11-28 23:55:04,160 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:55:04,160 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:55:04,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:04,162 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:55:04,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:55:04,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:55:04,224 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:55:04,224 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:55:04,224 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:55:04,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:55:04,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:55:04,225 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. cyclomatic complexity: 63 Second operand 3 states. [2018-11-28 23:55:04,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:55:04,493 INFO L93 Difference]: Finished difference Result 215 states and 298 transitions. [2018-11-28 23:55:04,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:55:04,502 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 298 transitions. [2018-11-28 23:55:04,513 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2018-11-28 23:55:04,518 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 215 states and 298 transitions. [2018-11-28 23:55:04,519 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2018-11-28 23:55:04,519 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2018-11-28 23:55:04,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 298 transitions. [2018-11-28 23:55:04,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:55:04,524 INFO L705 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2018-11-28 23:55:04,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 298 transitions. [2018-11-28 23:55:04,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2018-11-28 23:55:04,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2018-11-28 23:55:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 298 transitions. [2018-11-28 23:55:04,547 INFO L728 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2018-11-28 23:55:04,547 INFO L608 BuchiCegarLoop]: Abstraction has 215 states and 298 transitions. [2018-11-28 23:55:04,547 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:55:04,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 298 transitions. [2018-11-28 23:55:04,549 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 155 [2018-11-28 23:55:04,550 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:55:04,550 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:55:04,551 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:55:04,551 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] [2018-11-28 23:55:04,551 INFO L794 eck$LassoCheckResult]: Stem: 645#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string3.base, #t~string3.offset := #Ultimate.alloc(13);call #t~string5.base, #t~string5.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string5.base, #t~string5.offset, 1);call write~init~int(110, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 2 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(102, #t~string7.base, 2 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 3 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string9.base, #t~string9.offset, 1);call write~init~int(80, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(117, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(109, #t~string9.base, 3 + #t~string9.offset, 1);call write~init~int(112, #t~string9.base, 4 + #t~string9.offset, 1);call write~init~int(58, #t~string9.base, 5 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 6 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(110, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 2 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(102, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 3 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string15.base, #t~string15.offset, 1);call write~init~int(32, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string20.base, #t~string20.offset := #Ultimate.alloc(13);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(77, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(101, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(116, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(104, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string24.base, #t~string24.offset, 1);call write~init~int(82, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(73, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(84, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 4 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(75, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string52.base, #t~string52.offset := #Ultimate.alloc(30);call #t~string53.base, #t~string53.offset := #Ultimate.alloc(9);call #t~string54.base, #t~string54.offset := #Ultimate.alloc(21);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~string61.base, #t~string61.offset := #Ultimate.alloc(30);call #t~string62.base, #t~string62.offset := #Ultimate.alloc(9);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(25);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);~cleanupTimeShifts~0 := 4; 612#L-1 havoc main_#res;havoc main_#t~ret71, main_~retValue_acc~11, main_~tmp~7;havoc main_~retValue_acc~11;havoc main_~tmp~7; 613#L428 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 634#L436 main_#t~ret71 := valid_product_#res;main_~tmp~7 := main_#t~ret71;havoc main_#t~ret71; 642#L915 assume 0 != main_~tmp~7; 616#L892 havoc test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 617#L815-1 [2018-11-28 23:55:04,552 INFO L796 eck$LassoCheckResult]: Loop: 617#L815-1 assume !false; 653#L345 assume test_~splverifierCounter~0 < 4; 654#L346 test_~tmp~2 := test_#t~nondet29;havoc test_#t~nondet29; 598#L354 assume !(0 != test_~tmp~2); 600#L354-1 test_~tmp___0~1 := test_#t~nondet30;havoc test_#t~nondet30; 603#L364 assume !(0 != test_~tmp___0~1); 675#L364-1 test_~tmp___2~0 := test_#t~nondet31;havoc test_#t~nondet31; 661#L374 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 662#L382-1 assume !(0 != ~pumpRunning~0); 669#L68 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret0, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 682#L100 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret18, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~1, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~1;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 724#L322 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 670#L327 isHighWaterLevel_#t~ret18 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~1 := isHighWaterLevel_#t~ret18;havoc isHighWaterLevel_#t~ret18; 667#L202 assume 0 != isHighWaterLevel_~tmp~1;isHighWaterLevel_~tmp___0~0 := 0; 668#L202-2 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 593#L208 processEnvironment_#t~ret0 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret0;havoc processEnvironment_#t~ret0; 594#L104 assume !(0 != processEnvironment_~tmp~0); 665#L75 havoc __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_~tmp~6, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~6;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 758#L282 __utac_acc__Specification1_spec__1_#t~ret69 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~6 := __utac_acc__Specification1_spec__1_#t~ret69;havoc __utac_acc__Specification1_spec__1_#t~ret69; 756#L815 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~6); 617#L815-1 [2018-11-28 23:55:04,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:55:04,552 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2018-11-28 23:55:04,552 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:55:04,552 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:55:04,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:04,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:55:04,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:04,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:55:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:55:04,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:55:04,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1551490649, now seen corresponding path program 1 times [2018-11-28 23:55:04,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:55:04,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:55:04,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:04,647 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:55:04,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:04,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:55:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:55:04,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:55:04,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1536778675, now seen corresponding path program 1 times [2018-11-28 23:55:04,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:55:04,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:55:04,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:04,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:55:04,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:55:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:55:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:55:05,301 WARN L180 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2018-11-28 23:55:05,687 WARN L180 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-11-28 23:55:13,316 WARN L180 SmtUtils]: Spent 7.61 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-11-28 23:55:16,504 WARN L180 SmtUtils]: Spent 3.19 s on a formula simplification that was a NOOP. DAG size: 423 [2018-11-28 23:55:16,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:55:16 BoogieIcfgContainer [2018-11-28 23:55:16,564 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:55:16,564 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:55:16,564 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:55:16,565 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:55:16,566 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:55:03" (3/4) ... [2018-11-28 23:55:16,569 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:55:16,642 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:55:16,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:55:16,643 INFO L168 Benchmark]: Toolchain (without parser) took 15754.24 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 300.9 MB). Free memory was 954.0 MB in the beginning and 956.1 MB in the end (delta: -2.1 MB). Peak memory consumption was 298.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:55:16,646 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:55:16,646 INFO L168 Benchmark]: CACSL2BoogieTranslator took 638.71 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 927.2 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:55:16,647 INFO L168 Benchmark]: Boogie Procedure Inliner took 157.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:55:16,648 INFO L168 Benchmark]: Boogie Preprocessor took 45.03 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. [2018-11-28 23:55:16,649 INFO L168 Benchmark]: RCFGBuilder took 1408.99 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: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:55:16,649 INFO L168 Benchmark]: BuchiAutomizer took 13420.51 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.4 MB). Free memory was 1.1 GB in the beginning and 965.3 MB in the end (delta: 110.5 MB). Peak memory consumption was 342.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:55:16,654 INFO L168 Benchmark]: Witness Printer took 78.10 ms. Allocated memory is still 1.3 GB. Free memory is still 956.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:55:16,660 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 638.71 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 927.2 MB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 157.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 927.2 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.03 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 1408.99 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: 52.1 MB). Peak memory consumption was 52.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 13420.51 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 159.4 MB). Free memory was 1.1 GB in the beginning and 965.3 MB in the end (delta: 110.5 MB). Peak memory consumption was 342.8 MB. Max. memory is 11.5 GB. * Witness Printer took 78.10 ms. Allocated memory is still 1.3 GB. Free memory is still 956.1 MB. There was no memory consumed. 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 3 locations. The remainder module has 215 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 13.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 12.5s. Construction of modules took 0.4s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 217 SDtfs, 185 SDslu, 146 SDs, 0 SdLazy, 32 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 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=11, NULL=0, NULL=0, NULL=0, NULL=36, NULL=0, NULL=29, NULL=0, NULL=35, NULL=37, NULL=16, NULL=22, methaneLevelCritical=0, tmp___0=0, tmp=0, NULL=0, retValue_acc=0, NULL=0, tmp___1=0, tmp___0=0, NULL=26, NULL=15, cleanupTimeShifts=4, NULL=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9d47a0a=0, NULL=38, NULL=0, systemActive=1, waterLevel=1, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@439b5b6d=0, head=0, pumpRunning=0, NULL=33, \result=0, NULL=40, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f81b2b9=0, tmp=0, NULL=20, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f6cb7ef=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f88cbc6=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a930f48=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4baab32a=0, NULL=24, retValue_acc=1, NULL=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7019b424=0, tmp=1, NULL=17, tmp___2=56, tmp___0=0, NULL=27, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=31, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@133bb72e=0, NULL=0, NULL=0, NULL=28, NULL=0, NULL=0, NULL=34, NULL=0, NULL=0, NULL=0, NULL=18, NULL=12, NULL=19, NULL=39} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L239] int waterLevel = 1; [L240] int methaneLevelCritical = 0; [L610] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L833] int cleanupTimeShifts = 4; [L906] int retValue_acc ; [L907] int tmp ; [L432] int retValue_acc ; [L435] retValue_acc = 1 [L436] return (retValue_acc); [L913] tmp = valid_product() [L915] COND TRUE \read(tmp) [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) [L231] systemActive = 1 [L68] COND FALSE !(\read(pumpRunning)) [L75] COND TRUE \read(systemActive) [L97] int tmp ; [L100] COND TRUE ! pumpRunning [L194] int retValue_acc ; [L195] int tmp ; [L196] int tmp___0 ; [L319] int retValue_acc ; [L322] COND TRUE waterLevel < 2 [L323] retValue_acc = 1 [L324] return (retValue_acc); [L200] tmp = isHighWaterSensorDry() [L202] COND TRUE \read(tmp) [L203] tmp___0 = 0 [L207] retValue_acc = tmp___0 [L208] return (retValue_acc); [L102] tmp = isHighWaterLevel() [L104] COND FALSE !(\read(tmp)) [L808] int tmp ; [L809] int tmp___0 ; [L278] int retValue_acc ; [L281] retValue_acc = methaneLevelCritical [L282] return (retValue_acc); [L813] tmp = isMethaneLevelCritical() [L815] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...