./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product56_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_spec3_product56_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 525453629ce87b69ed1d4100e13fdb9e0c8a872a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:58:31,846 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:58:31,848 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:58:31,860 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:58:31,860 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:58:31,861 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:58:31,863 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:58:31,865 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:58:31,867 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:58:31,868 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:58:31,869 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:58:31,869 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:58:31,870 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:58:31,871 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:58:31,873 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:58:31,874 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:58:31,875 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:58:31,877 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:58:31,879 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:58:31,881 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:58:31,882 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:58:31,884 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:58:31,887 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:58:31,887 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:58:31,887 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:58:31,888 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:58:31,890 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:58:31,891 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:58:31,892 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:58:31,893 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:58:31,893 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:58:31,895 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:58:31,895 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:58:31,895 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:58:31,896 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:58:31,897 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:58:31,898 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:58:31,915 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:58:31,915 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:58:31,916 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:58:31,916 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:58:31,917 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:58:31,917 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:58:31,917 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:58:31,918 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:58:31,918 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:58:31,918 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:58:31,918 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:58:31,918 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:58:31,919 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:58:31,919 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:58:31,919 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:58:31,919 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:58:31,919 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:58:31,919 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:58:31,919 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:58:31,921 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:58:31,921 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:58:31,921 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:58:31,922 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:58:31,922 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:58:31,922 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:58:31,923 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:58:31,923 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:58:31,923 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:58:31,923 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:58:31,923 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:58:31,923 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:58:31,924 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:58:31,926 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 -> 525453629ce87b69ed1d4100e13fdb9e0c8a872a [2018-11-28 23:58:31,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:58:31,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:58:31,983 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:58:31,985 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:58:31,986 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:58:31,987 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product56_false-unreach-call_false-termination.cil.c [2018-11-28 23:58:32,051 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617419639/e61ab73044624aaca71d47d4e8c8b525/FLAG687dba740 [2018-11-28 23:58:32,635 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:58:32,636 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product56_false-unreach-call_false-termination.cil.c [2018-11-28 23:58:32,662 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617419639/e61ab73044624aaca71d47d4e8c8b525/FLAG687dba740 [2018-11-28 23:58:32,866 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617419639/e61ab73044624aaca71d47d4e8c8b525 [2018-11-28 23:58:32,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:58:32,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:58:32,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:58:32,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:58:32,879 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:58:32,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:58:32" (1/1) ... [2018-11-28 23:58:32,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6462de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:32, skipping insertion in model container [2018-11-28 23:58:32,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:58:32" (1/1) ... [2018-11-28 23:58:32,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:58:32,942 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:58:33,353 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:58:33,371 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:58:33,465 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:58:33,610 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:58:33,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33 WrapperNode [2018-11-28 23:58:33,610 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:58:33,611 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:58:33,611 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:58:33,611 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:58:33,621 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (1/1) ... [2018-11-28 23:58:33,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (1/1) ... [2018-11-28 23:58:33,729 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:58:33,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:58:33,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:58:33,730 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:58:33,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (1/1) ... [2018-11-28 23:58:33,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (1/1) ... [2018-11-28 23:58:33,750 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (1/1) ... [2018-11-28 23:58:33,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (1/1) ... [2018-11-28 23:58:33,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (1/1) ... [2018-11-28 23:58:33,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (1/1) ... [2018-11-28 23:58:33,814 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (1/1) ... [2018-11-28 23:58:33,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:58:33,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:58:33,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:58:33,826 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:58:33,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (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 23:58:33,891 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 23:58:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-11-28 23:58:33,892 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:58:33,892 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:58:35,793 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:58:35,794 INFO L280 CfgBuilder]: Removed 288 assue(true) statements. [2018-11-28 23:58:35,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:58:35 BoogieIcfgContainer [2018-11-28 23:58:35,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:58:35,795 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:58:35,795 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:58:35,800 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:58:35,803 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:58:35,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:58:32" (1/3) ... [2018-11-28 23:58:35,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69e23b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:58:35, skipping insertion in model container [2018-11-28 23:58:35,805 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:58:35,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:58:33" (2/3) ... [2018-11-28 23:58:35,806 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@69e23b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:58:35, skipping insertion in model container [2018-11-28 23:58:35,806 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:58:35,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:58:35" (3/3) ... [2018-11-28 23:58:35,808 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product56_false-unreach-call_false-termination.cil.c [2018-11-28 23:58:35,884 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:58:35,885 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:58:35,885 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:58:35,885 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:58:35,885 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:58:35,885 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:58:35,886 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:58:35,886 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:58:35,886 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:58:35,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states. [2018-11-28 23:58:35,973 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2018-11-28 23:58:35,973 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:58:35,973 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:58:35,986 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:58:35,986 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:58:35,987 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:58:35,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 194 states. [2018-11-28 23:58:36,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 127 [2018-11-28 23:58:36,011 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:58:36,011 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:58:36,014 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:58:36,014 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:58:36,022 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 3#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 28#L532true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 160#L540true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 62#L130true assume 0 != main_~tmp~0; 11#L103true havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 168#L564-1true [2018-11-28 23:58:36,023 INFO L796 eck$LassoCheckResult]: Loop: 168#L564-1true assume !false; 9#L951true assume test_~splverifierCounter~0 < 4; 76#L952true test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 187#L960true assume !(0 != test_~tmp~10); 189#L960-1true test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 144#L970true assume !(0 != test_~tmp___0~3); 120#L970-1true test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 70#L980true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 176#L988-1true assume !(0 != ~pumpRunning~0); 193#L701true assume !(0 != ~systemActive~0); 41#L708true havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 183#L630-1true __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 185#L558true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 168#L564-1true [2018-11-28 23:58:36,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:36,029 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2018-11-28 23:58:36,032 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:36,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:36,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:36,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:36,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:36,365 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:36,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1666938241, now seen corresponding path program 1 times [2018-11-28 23:58:36,366 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:36,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:36,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:36,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:36,368 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:58:36,447 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 23:58:36,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:58:36,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:58:36,454 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:58:36,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:58:36,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:58:36,475 INFO L87 Difference]: Start difference. First operand 194 states. Second operand 3 states. [2018-11-28 23:58:36,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:58:36,624 INFO L93 Difference]: Finished difference Result 382 states and 570 transitions. [2018-11-28 23:58:36,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:58:36,632 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 382 states and 570 transitions. [2018-11-28 23:58:36,647 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 250 [2018-11-28 23:58:36,658 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 382 states to 368 states and 555 transitions. [2018-11-28 23:58:36,660 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 368 [2018-11-28 23:58:36,662 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 368 [2018-11-28 23:58:36,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 368 states and 555 transitions. [2018-11-28 23:58:36,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:58:36,666 INFO L705 BuchiCegarLoop]: Abstraction has 368 states and 555 transitions. [2018-11-28 23:58:36,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states and 555 transitions. [2018-11-28 23:58:36,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 366. [2018-11-28 23:58:36,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 366 states. [2018-11-28 23:58:36,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 552 transitions. [2018-11-28 23:58:36,729 INFO L728 BuchiCegarLoop]: Abstraction has 366 states and 552 transitions. [2018-11-28 23:58:36,729 INFO L608 BuchiCegarLoop]: Abstraction has 366 states and 552 transitions. [2018-11-28 23:58:36,729 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:58:36,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 366 states and 552 transitions. [2018-11-28 23:58:36,733 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 248 [2018-11-28 23:58:36,734 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:58:36,734 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:58:36,735 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:58:36,735 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:58:36,735 INFO L794 eck$LassoCheckResult]: Stem: 769#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 599#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 600#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 710#L540 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 748#L130 assume 0 != main_~tmp~0; 632#L103 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 633#L564-1 [2018-11-28 23:58:36,739 INFO L796 eck$LassoCheckResult]: Loop: 633#L564-1 assume !false; 627#L951 assume test_~splverifierCounter~0 < 4; 628#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 779#L960 assume !(0 != test_~tmp~10); 792#L960-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 800#L970 assume !(0 != test_~tmp___0~3); 856#L970-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 855#L980 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 763#L988-1 assume !(0 != ~pumpRunning~0); 802#L701 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 751#L785 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret51, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 753#L759-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret50, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 727#L733-3 assume !(0 == ~pumpRunning~0); 591#L708 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 733#L630-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 785#L558 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 633#L564-1 [2018-11-28 23:58:36,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:36,739 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2018-11-28 23:58:36,740 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:36,740 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:36,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:36,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:36,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:36,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:36,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:36,871 INFO L82 PathProgramCache]: Analyzing trace with hash 558894441, now seen corresponding path program 1 times [2018-11-28 23:58:36,871 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:36,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:36,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:36,873 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:58:36,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:58:36,936 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 23:58:36,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:58:36,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:58:36,937 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:58:36,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:58:36,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:58:36,938 INFO L87 Difference]: Start difference. First operand 366 states and 552 transitions. cyclomatic complexity: 189 Second operand 3 states. [2018-11-28 23:58:37,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:58:37,283 INFO L93 Difference]: Finished difference Result 389 states and 550 transitions. [2018-11-28 23:58:37,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:58:37,286 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 389 states and 550 transitions. [2018-11-28 23:58:37,293 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 271 [2018-11-28 23:58:37,300 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 389 states to 389 states and 550 transitions. [2018-11-28 23:58:37,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 389 [2018-11-28 23:58:37,301 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 389 [2018-11-28 23:58:37,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 389 states and 550 transitions. [2018-11-28 23:58:37,310 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:58:37,310 INFO L705 BuchiCegarLoop]: Abstraction has 389 states and 550 transitions. [2018-11-28 23:58:37,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states and 550 transitions. [2018-11-28 23:58:37,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2018-11-28 23:58:37,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2018-11-28 23:58:37,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 550 transitions. [2018-11-28 23:58:37,347 INFO L728 BuchiCegarLoop]: Abstraction has 389 states and 550 transitions. [2018-11-28 23:58:37,347 INFO L608 BuchiCegarLoop]: Abstraction has 389 states and 550 transitions. [2018-11-28 23:58:37,347 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:58:37,348 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 389 states and 550 transitions. [2018-11-28 23:58:37,351 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 271 [2018-11-28 23:58:37,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:58:37,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:58:37,352 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:58:37,353 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] [2018-11-28 23:58:37,353 INFO L794 eck$LassoCheckResult]: Stem: 1515#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 1355#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1356#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 1451#L540 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1496#L130 assume 0 != main_~tmp~0; 1382#L103 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1383#L564-1 [2018-11-28 23:58:37,353 INFO L796 eck$LassoCheckResult]: Loop: 1383#L564-1 assume !false; 1572#L951 assume test_~splverifierCounter~0 < 4; 1573#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 1569#L960 assume !(0 != test_~tmp~10); 1568#L960-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 1564#L970 assume !(0 != test_~tmp___0~3); 1563#L970-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 1555#L980 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1556#L988-1 assume !(0 != ~pumpRunning~0); 1626#L701 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1497#L785 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret51, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 1498#L759-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret50, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1544#L733-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1615#L670-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1612#L675-3 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 1609#L887-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1605#L887-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1604#L893-3 processEnvironment__wrappee__highWaterSensor_#t~ret50 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret50;havoc processEnvironment__wrappee__highWaterSensor_#t~ret50; 1532#L737-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1533#L708 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1530#L630-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 1531#L558 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 1383#L564-1 [2018-11-28 23:58:37,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:37,354 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2018-11-28 23:58:37,354 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:37,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:37,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:37,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:37,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:37,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:37,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:37,421 INFO L82 PathProgramCache]: Analyzing trace with hash 222495861, now seen corresponding path program 1 times [2018-11-28 23:58:37,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:37,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:37,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:37,424 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:58:37,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:37,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:37,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:37,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1475800987, now seen corresponding path program 1 times [2018-11-28 23:58:37,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:37,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:37,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:37,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:37,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:37,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:58:37,698 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 23:58:37,698 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:58:37,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:58:38,268 WARN L180 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2018-11-28 23:58:38,419 WARN L180 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2018-11-28 23:58:38,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:58:38,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:58:38,438 INFO L87 Difference]: Start difference. First operand 389 states and 550 transitions. cyclomatic complexity: 164 Second operand 5 states. [2018-11-28 23:58:39,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:58:39,265 INFO L93 Difference]: Finished difference Result 1302 states and 1843 transitions. [2018-11-28 23:58:39,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 23:58:39,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1302 states and 1843 transitions. [2018-11-28 23:58:39,281 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 962 [2018-11-28 23:58:39,291 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1302 states to 1302 states and 1843 transitions. [2018-11-28 23:58:39,292 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1302 [2018-11-28 23:58:39,294 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1302 [2018-11-28 23:58:39,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1302 states and 1843 transitions. [2018-11-28 23:58:39,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:58:39,298 INFO L705 BuchiCegarLoop]: Abstraction has 1302 states and 1843 transitions. [2018-11-28 23:58:39,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states and 1843 transitions. [2018-11-28 23:58:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 772. [2018-11-28 23:58:39,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 772 states. [2018-11-28 23:58:39,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 772 states to 772 states and 1078 transitions. [2018-11-28 23:58:39,327 INFO L728 BuchiCegarLoop]: Abstraction has 772 states and 1078 transitions. [2018-11-28 23:58:39,327 INFO L608 BuchiCegarLoop]: Abstraction has 772 states and 1078 transitions. [2018-11-28 23:58:39,327 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:58:39,327 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 772 states and 1078 transitions. [2018-11-28 23:58:39,335 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 542 [2018-11-28 23:58:39,335 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:58:39,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:58:39,337 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-28 23:58:39,340 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:58:39,340 INFO L794 eck$LassoCheckResult]: Stem: 3217#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string19.base, #t~string19.offset := #Ultimate.alloc(30);call #t~string20.base, #t~string20.offset := #Ultimate.alloc(9);call #t~string21.base, #t~string21.offset := #Ultimate.alloc(21);call #t~string22.base, #t~string22.offset := #Ultimate.alloc(30);call #t~string23.base, #t~string23.offset := #Ultimate.alloc(9);call #t~string24.base, #t~string24.offset := #Ultimate.alloc(21);call #t~string28.base, #t~string28.offset := #Ultimate.alloc(30);call #t~string29.base, #t~string29.offset := #Ultimate.alloc(9);call #t~string30.base, #t~string30.offset := #Ultimate.alloc(25);call #t~string31.base, #t~string31.offset := #Ultimate.alloc(30);call #t~string32.base, #t~string32.offset := #Ultimate.alloc(9);call #t~string33.base, #t~string33.offset := #Ultimate.alloc(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string41.base, #t~string41.offset := #Ultimate.alloc(13);call #t~string43.base, #t~string43.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string43.base, #t~string43.offset, 1);call write~init~int(77, #t~string43.base, 1 + #t~string43.offset, 1);call write~init~int(101, #t~string43.base, 2 + #t~string43.offset, 1);call write~init~int(116, #t~string43.base, 3 + #t~string43.offset, 1);call write~init~int(104, #t~string43.base, 4 + #t~string43.offset, 1);call write~init~int(58, #t~string43.base, 5 + #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 6 + #t~string43.offset, 1);call #t~string45.base, #t~string45.offset := #Ultimate.alloc(5);call write~init~int(67, #t~string45.base, #t~string45.offset, 1);call write~init~int(82, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(73, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(84, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 4 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string47.base, #t~string47.offset, 1);call write~init~int(75, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 2 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.alloc(2);call write~init~int(41, #t~string49.base, #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 1 + #t~string49.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.alloc(13);call #t~string57.base, #t~string57.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.alloc(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.alloc(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.alloc(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.alloc(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.alloc(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1); 3064#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 3065#L532 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 3160#L540 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 3196#L130 assume 0 != main_~tmp~0; 3091#L103 havoc test_#t~nondet72, test_#t~nondet73, test_#t~nondet74, test_#t~nondet75, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3092#L564-1 [2018-11-28 23:58:39,341 INFO L796 eck$LassoCheckResult]: Loop: 3092#L564-1 assume !false; 3086#L951 assume test_~splverifierCounter~0 < 4; 3087#L952 test_~tmp~10 := test_#t~nondet72;havoc test_#t~nondet72; 3227#L960 assume !(0 != test_~tmp~10); 3237#L960-1 test_~tmp___0~3 := test_#t~nondet73;havoc test_#t~nondet73; 3155#L970 assume !(0 != test_~tmp___0~3); 3156#L970-1 test_~tmp___2~0 := test_#t~nondet74;havoc test_#t~nondet74; 3491#L980 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 3207#L988-1 assume !(0 != ~pumpRunning~0); 3224#L701 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 3245#L785 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret51, processEnvironment__wrappee__lowWaterSensor_~tmp~6;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6; 3471#L759-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret50, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 3470#L733-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 3468#L670-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 3466#L675-3 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 3463#L887-9 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 3461#L887-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 3459#L893-3 processEnvironment__wrappee__highWaterSensor_#t~ret50 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret50;havoc processEnvironment__wrappee__highWaterSensor_#t~ret50; 3436#L737-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 3058#L708 havoc __utac_acc__Specification3_spec__1_#t~ret37, __utac_acc__Specification3_spec__1_#t~ret38, __utac_acc__Specification3_spec__1_#t~ret39, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 3175#L630-1 __utac_acc__Specification3_spec__1_#t~ret37 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret37;havoc __utac_acc__Specification3_spec__1_#t~ret37; 3233#L558 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 3097#L662 __utac_acc__Specification3_spec__1_#t~ret38 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret38;havoc __utac_acc__Specification3_spec__1_#t~ret38; 3098#L564 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 3092#L564-1 [2018-11-28 23:58:39,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:39,341 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2018-11-28 23:58:39,341 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:39,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:39,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:39,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:39,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:39,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:39,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:39,417 INFO L82 PathProgramCache]: Analyzing trace with hash -929830745, now seen corresponding path program 1 times [2018-11-28 23:58:39,417 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:39,417 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:39,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:39,419 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:58:39,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:39,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:58:39,437 INFO L82 PathProgramCache]: Analyzing trace with hash 905552461, now seen corresponding path program 1 times [2018-11-28 23:58:39,437 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:58:39,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:58:39,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:39,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:58:39,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:58:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:58:39,837 WARN L180 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2018-11-28 23:58:40,014 WARN L180 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-11-28 23:58:44,770 WARN L180 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 425 DAG size of output: 423 [2018-11-28 23:58:46,776 WARN L180 SmtUtils]: Spent 2.01 s on a formula simplification that was a NOOP. DAG size: 423 [2018-11-28 23:58:46,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:58:46 BoogieIcfgContainer [2018-11-28 23:58:46,855 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:58:46,855 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:58:46,855 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:58:46,856 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:58:46,857 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:58:35" (3/4) ... [2018-11-28 23:58:46,861 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:58:46,933 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:58:46,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:58:46,935 INFO L168 Benchmark]: Toolchain (without parser) took 14063.20 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.0 MB). Free memory was 947.3 MB in the beginning and 1.3 GB in the end (delta: -351.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:58:46,936 INFO L168 Benchmark]: CDTParser took 0.23 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 23:58:46,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:58:46,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.51 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:58:46,937 INFO L168 Benchmark]: Boogie Preprocessor took 95.67 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:58:46,938 INFO L168 Benchmark]: RCFGBuilder took 1968.66 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: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:58:46,938 INFO L168 Benchmark]: BuchiAutomizer took 11059.60 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 177.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -256.2 MB). Peak memory consumption was 400.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:58:46,939 INFO L168 Benchmark]: Witness Printer took 78.53 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:58:46,945 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 736.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 43.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 118.51 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 95.67 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1968.66 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: 72.8 MB). Peak memory consumption was 72.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 11059.60 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 177.7 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -256.2 MB). Peak memory consumption was 400.0 MB. Max. memory is 11.5 GB. * Witness Printer took 78.53 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 772 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 10.9s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 9.2s. Construction of modules took 0.9s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 532 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 772 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 834 SDtfs, 1341 SDslu, 1392 SDs, 0 SdLazy, 122 SolverSat, 62 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 950]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70990c71=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@de83045=0, NULL=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@179c47c2=0, NULL=0, NULL=0, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6415db00=0, NULL=39, NULL=0, tmp___1=0, NULL=34, NULL=8, NULL=14, cleanupTimeShifts=4, tmp=0, NULL=27, NULL=0, waterLevel=1, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d6352e9=0, NULL=0, \result=1, NULL=26, retValue_acc=0, tmp___0=0, tmp=1, retValue_acc=1, NULL=12, NULL=20, head=0, NULL=0, NULL=28, NULL=36, tmp=0, NULL=0, NULL=31, NULL=0, retValue_acc=0, NULL=0, NULL=35, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4de38f60=0, tmp___0=0, NULL=0, NULL=0, NULL=19, tmp=0, tmp___0=1, NULL=23, NULL=38, tmp=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=11, \result=1, NULL=0, retValue_acc=0, \result=0, NULL=15, NULL=0, NULL=0, NULL=16, \result=0, NULL=33, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22370354=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42961e8c=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cde0555=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55dde424=0, NULL=37, NULL=24, tmp=0, tmp___2=56, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e411f74=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79292b4d=0, tmp___1=0, NULL=0, NULL=22, NULL=0, NULL=0, NULL=18} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 Loop: [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND FALSE !(\read(tmp)) [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND TRUE \read(tmp___2) [L935] systemActive = 1 [L701] COND FALSE !(\read(pumpRunning)) [L708] COND TRUE \read(systemActive) [L782] int tmp ; [L785] COND FALSE !(\read(pumpRunning)) [L756] int tmp ; [L759] COND FALSE !(\read(pumpRunning)) [L730] int tmp ; [L733] COND TRUE ! pumpRunning [L879] int retValue_acc ; [L880] int tmp ; [L881] int tmp___0 ; [L667] int retValue_acc ; [L670] COND TRUE waterLevel < 2 [L671] retValue_acc = 1 [L672] return (retValue_acc); [L885] tmp = isHighWaterSensorDry() [L887] COND TRUE \read(tmp) [L888] tmp___0 = 0 [L892] retValue_acc = tmp___0 [L893] return (retValue_acc); [L735] tmp = isHighWaterLevel() [L737] COND FALSE !(\read(tmp)) [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] return (retValue_acc); [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] return (retValue_acc); [L562] tmp___0 = getWaterLevel() [L564] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...