./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product58.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/product-lines/minepump_spec3_product58.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 f0abcca86e101e0402ce9c7a98a1409292a39ee1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-30f4e4a [2019-11-28 03:35:07,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:35:07,897 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:35:07,910 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:35:07,910 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:35:07,911 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:35:07,913 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:35:07,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:35:07,917 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:35:07,918 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:35:07,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:35:07,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:35:07,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:35:07,922 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:35:07,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:35:07,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:35:07,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:35:07,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:35:07,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:35:07,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:35:07,932 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:35:07,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:35:07,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:35:07,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:35:07,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:35:07,938 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:35:07,938 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:35:07,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:35:07,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:35:07,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:35:07,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:35:07,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:35:07,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:35:07,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:35:07,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:35:07,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:35:07,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:35:07,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:35:07,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:35:07,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:35:07,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:35:07,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:35:07,965 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:35:07,965 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:35:07,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:35:07,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:35:07,967 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:35:07,967 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:35:07,967 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:35:07,967 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:35:07,968 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:35:07,968 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:35:07,968 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:35:07,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:35:07,968 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:35:07,969 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:35:07,969 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:35:07,969 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:35:07,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:35:07,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:35:07,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:35:07,971 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:35:07,972 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:35:07,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:35:07,972 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:35:07,972 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:35:07,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:35:07,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:35:07,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:35:07,974 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:35:07,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:35:07,974 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:35:07,974 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:35:07,976 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:35:07,977 INFO L138 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 -> f0abcca86e101e0402ce9c7a98a1409292a39ee1 [2019-11-28 03:35:08,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:35:08,361 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:35:08,365 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:35:08,366 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:35:08,367 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:35:08,367 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product58.cil.c [2019-11-28 03:35:08,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63d549152/4e8ccbefc4b0476697f9e1062e6fb30c/FLAGad67327e4 [2019-11-28 03:35:08,996 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:35:08,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product58.cil.c [2019-11-28 03:35:09,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63d549152/4e8ccbefc4b0476697f9e1062e6fb30c/FLAGad67327e4 [2019-11-28 03:35:09,295 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63d549152/4e8ccbefc4b0476697f9e1062e6fb30c [2019-11-28 03:35:09,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:35:09,300 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:35:09,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:35:09,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:35:09,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:35:09,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:35:09" (1/1) ... [2019-11-28 03:35:09,309 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188eab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:09, skipping insertion in model container [2019-11-28 03:35:09,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:35:09" (1/1) ... [2019-11-28 03:35:09,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:35:09,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:35:09,899 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:35:09,919 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:35:10,027 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:35:10,068 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:35:10,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10 WrapperNode [2019-11-28 03:35:10,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:35:10,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:35:10,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:35:10,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:35:10,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (1/1) ... [2019-11-28 03:35:10,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (1/1) ... [2019-11-28 03:35:10,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:35:10,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:35:10,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:35:10,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:35:10,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (1/1) ... [2019-11-28 03:35:10,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (1/1) ... [2019-11-28 03:35:10,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (1/1) ... [2019-11-28 03:35:10,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (1/1) ... [2019-11-28 03:35:10,215 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (1/1) ... [2019-11-28 03:35:10,226 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (1/1) ... [2019-11-28 03:35:10,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (1/1) ... [2019-11-28 03:35:10,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:35:10,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:35:10,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:35:10,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:35:10,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (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 [2019-11-28 03:35:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 03:35:10,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 03:35:10,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:35:10,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:35:11,292 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:35:11,292 INFO L297 CfgBuilder]: Removed 200 assume(true) statements. [2019-11-28 03:35:11,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:11 BoogieIcfgContainer [2019-11-28 03:35:11,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:35:11,295 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:35:11,295 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:35:11,298 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:35:11,299 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:35:11,299 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:35:09" (1/3) ... [2019-11-28 03:35:11,301 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40626a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:35:11, skipping insertion in model container [2019-11-28 03:35:11,301 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:35:11,301 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:35:10" (2/3) ... [2019-11-28 03:35:11,301 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@40626a69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:35:11, skipping insertion in model container [2019-11-28 03:35:11,302 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:35:11,302 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:11" (3/3) ... [2019-11-28 03:35:11,304 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product58.cil.c [2019-11-28 03:35:11,352 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:35:11,353 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:35:11,353 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:35:11,353 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:35:11,353 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:35:11,353 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:35:11,354 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:35:11,354 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:35:11,374 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states. [2019-11-28 03:35:11,407 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-11-28 03:35:11,408 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:35:11,408 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:35:11,418 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:35:11,418 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:35:11,418 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:35:11,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states. [2019-11-28 03:35:11,426 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-11-28 03:35:11,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:35:11,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:35:11,428 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:35:11,428 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:35:11,435 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #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.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 15#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; 46#L166true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 88#L174true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 84#L130true assume 0 != main_~tmp~0; 25#L103true havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 135#L679-1true [2019-11-28 03:35:11,435 INFO L796 eck$LassoCheckResult]: Loop: 135#L679-1true assume !false; 122#L710true assume test_~splverifierCounter~0 < 4; 55#L711true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 91#L719true assume !(0 != test_~tmp~5); 65#L719-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 123#L729true assume !(0 != test_~tmp___0~1); 124#L729-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 22#L739true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 28#L747-2true assume !(0 != ~pumpRunning~0); 17#L775true assume !(0 != ~systemActive~0); 95#L782true havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __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; 94#L603-2true __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 26#L673true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 135#L679-1true [2019-11-28 03:35:11,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:35:11,443 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 03:35:11,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:35:11,454 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661416089] [2019-11-28 03:35:11,454 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:35:11,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:11,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:11,864 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:35:11,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:35:11,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1678143626, now seen corresponding path program 1 times [2019-11-28 03:35:11,867 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:35:11,867 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601460408] [2019-11-28 03:35:11,867 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:35:11,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:35:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:35:11,920 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601460408] [2019-11-28 03:35:11,921 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:35:11,921 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:35:11,922 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56690147] [2019-11-28 03:35:11,927 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:35:11,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:35:11,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:35:11,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:35:11,943 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 3 states. [2019-11-28 03:35:12,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:35:12,004 INFO L93 Difference]: Finished difference Result 138 states and 197 transitions. [2019-11-28 03:35:12,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:35:12,006 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 197 transitions. [2019-11-28 03:35:12,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-28 03:35:12,020 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 131 states and 189 transitions. [2019-11-28 03:35:12,022 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 131 [2019-11-28 03:35:12,023 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 131 [2019-11-28 03:35:12,023 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 189 transitions. [2019-11-28 03:35:12,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:35:12,030 INFO L688 BuchiCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-11-28 03:35:12,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 189 transitions. [2019-11-28 03:35:12,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-11-28 03:35:12,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-11-28 03:35:12,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2019-11-28 03:35:12,067 INFO L711 BuchiCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-11-28 03:35:12,067 INFO L591 BuchiCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-11-28 03:35:12,067 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:35:12,067 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 189 transitions. [2019-11-28 03:35:12,070 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-11-28 03:35:12,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:35:12,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:35:12,071 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:35:12,071 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:35:12,074 INFO L794 eck$LassoCheckResult]: Stem: 411#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #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.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 312#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; 313#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 357#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 395#L130 assume 0 != main_~tmp~0; 326#L103 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 327#L679-1 [2019-11-28 03:35:12,074 INFO L796 eck$LassoCheckResult]: Loop: 327#L679-1 assume !false; 412#L710 assume test_~splverifierCounter~0 < 4; 363#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 364#L719 assume !(0 != test_~tmp~5); 375#L719-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 376#L729 assume !(0 != test_~tmp___0~1); 354#L729-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 321#L739 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 322#L747-2 assume !(0 != ~pumpRunning~0); 297#L775 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 291#L833 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 292#L807-1 assume !(0 == ~pumpRunning~0); 299#L782 havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __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; 400#L603-2 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 328#L673 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 327#L679-1 [2019-11-28 03:35:12,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:35:12,075 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 03:35:12,075 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:35:12,075 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923948862] [2019-11-28 03:35:12,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:35:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:12,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:12,210 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:35:12,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:35:12,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1068993921, now seen corresponding path program 1 times [2019-11-28 03:35:12,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:35:12,211 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760680213] [2019-11-28 03:35:12,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:35:12,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:35:12,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:35:12,234 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760680213] [2019-11-28 03:35:12,234 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:35:12,234 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:35:12,237 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234902808] [2019-11-28 03:35:12,237 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 03:35:12,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:35:12,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:35:12,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:35:12,239 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-11-28 03:35:12,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:35:12,384 INFO L93 Difference]: Finished difference Result 178 states and 246 transitions. [2019-11-28 03:35:12,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:35:12,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 246 transitions. [2019-11-28 03:35:12,388 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-11-28 03:35:12,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 178 states and 246 transitions. [2019-11-28 03:35:12,391 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 178 [2019-11-28 03:35:12,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 178 [2019-11-28 03:35:12,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 178 states and 246 transitions. [2019-11-28 03:35:12,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:35:12,393 INFO L688 BuchiCegarLoop]: Abstraction has 178 states and 246 transitions. [2019-11-28 03:35:12,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states and 246 transitions. [2019-11-28 03:35:12,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2019-11-28 03:35:12,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-11-28 03:35:12,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 246 transitions. [2019-11-28 03:35:12,413 INFO L711 BuchiCegarLoop]: Abstraction has 178 states and 246 transitions. [2019-11-28 03:35:12,413 INFO L591 BuchiCegarLoop]: Abstraction has 178 states and 246 transitions. [2019-11-28 03:35:12,413 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 03:35:12,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 178 states and 246 transitions. [2019-11-28 03:35:12,416 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-11-28 03:35:12,419 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:35:12,419 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:35:12,420 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:35:12,421 INFO L850 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] [2019-11-28 03:35:12,422 INFO L794 eck$LassoCheckResult]: Stem: 728#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #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.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 624#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; 625#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 669#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 707#L130 assume 0 != main_~tmp~0; 638#L103 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 639#L679-1 [2019-11-28 03:35:12,422 INFO L796 eck$LassoCheckResult]: Loop: 639#L679-1 assume !false; 729#L710 assume test_~splverifierCounter~0 < 4; 675#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 676#L719 assume !(0 != test_~tmp~5); 685#L719-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 686#L729 assume !(0 != test_~tmp___0~1); 666#L729-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 633#L739 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 634#L747-2 assume !(0 != ~pumpRunning~0); 629#L775 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 606#L833 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 607#L807-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 604#L643-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 605#L648-1 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 653#L953-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 671#L953-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 645#L959-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 619#L811-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 613#L782 havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __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; 714#L603-2 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 640#L673 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 639#L679-1 [2019-11-28 03:35:12,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:35:12,423 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 03:35:12,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:35:12,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798399989] [2019-11-28 03:35:12,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:35:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:12,573 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:35:12,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:35:12,573 INFO L82 PathProgramCache]: Analyzing trace with hash 87587051, now seen corresponding path program 1 times [2019-11-28 03:35:12,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:35:12,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138752107] [2019-11-28 03:35:12,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:35:12,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:12,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:12,598 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:35:12,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:35:12,600 INFO L82 PathProgramCache]: Analyzing trace with hash 543658245, now seen corresponding path program 1 times [2019-11-28 03:35:12,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:35:12,601 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218748771] [2019-11-28 03:35:12,601 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:35:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:35:12,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:35:12,704 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218748771] [2019-11-28 03:35:12,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:35:12,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:35:12,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340043726] [2019-11-28 03:35:12,866 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-11-28 03:35:12,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:35:12,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 03:35:12,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 03:35:12,942 INFO L87 Difference]: Start difference. First operand 178 states and 246 transitions. cyclomatic complexity: 70 Second operand 5 states. [2019-11-28 03:35:13,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:35:13,186 INFO L93 Difference]: Finished difference Result 621 states and 863 transitions. [2019-11-28 03:35:13,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 03:35:13,187 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 621 states and 863 transitions. [2019-11-28 03:35:13,196 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 452 [2019-11-28 03:35:13,204 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 621 states to 621 states and 863 transitions. [2019-11-28 03:35:13,204 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 621 [2019-11-28 03:35:13,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 621 [2019-11-28 03:35:13,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 621 states and 863 transitions. [2019-11-28 03:35:13,214 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:35:13,214 INFO L688 BuchiCegarLoop]: Abstraction has 621 states and 863 transitions. [2019-11-28 03:35:13,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states and 863 transitions. [2019-11-28 03:35:13,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 350. [2019-11-28 03:35:13,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-11-28 03:35:13,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 478 transitions. [2019-11-28 03:35:13,255 INFO L711 BuchiCegarLoop]: Abstraction has 350 states and 478 transitions. [2019-11-28 03:35:13,256 INFO L591 BuchiCegarLoop]: Abstraction has 350 states and 478 transitions. [2019-11-28 03:35:13,256 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-28 03:35:13,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 350 states and 478 transitions. [2019-11-28 03:35:13,259 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2019-11-28 03:35:13,259 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:35:13,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:35:13,260 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 03:35:13,261 INFO L850 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] [2019-11-28 03:35:13,261 INFO L794 eck$LassoCheckResult]: Stem: 1571#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #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.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 1441#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; 1442#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 1488#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1535#L130 assume 0 != main_~tmp~0; 1456#L103 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1457#L679-1 [2019-11-28 03:35:13,262 INFO L796 eck$LassoCheckResult]: Loop: 1457#L679-1 assume !false; 1705#L710 assume test_~splverifierCounter~0 < 4; 1494#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 1495#L719 assume !(0 != test_~tmp~5); 1506#L719-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 1507#L729 assume !(0 != test_~tmp___0~1); 1574#L729-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 1451#L739 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1452#L747-2 assume !(0 != ~pumpRunning~0); 1446#L775 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1447#L833 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1737#L807-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1735#L643-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1734#L648-1 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 1513#L953-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1490#L953-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1463#L959-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 1436#L811-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1430#L782 havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __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; 1711#L603-2 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 1710#L673 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; 1709#L635 __utac_acc__Specification3_spec__1_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret48;havoc __utac_acc__Specification3_spec__1_#t~ret48; 1706#L679 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1457#L679-1 [2019-11-28 03:35:13,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:35:13,262 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-28 03:35:13,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:35:13,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284329635] [2019-11-28 03:35:13,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:35:13,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:13,325 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:35:13,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:35:13,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1728181283, now seen corresponding path program 1 times [2019-11-28 03:35:13,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:35:13,326 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118889118] [2019-11-28 03:35:13,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:35:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:13,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:13,357 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:35:13,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:35:13,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1530428041, now seen corresponding path program 1 times [2019-11-28 03:35:13,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:35:13,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863552989] [2019-11-28 03:35:13,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:35:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:13,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:35:13,441 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:35:13,735 WARN L192 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-11-28 03:35:39,965 WARN L192 SmtUtils]: Spent 26.15 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 03:35:54,867 WARN L192 SmtUtils]: Spent 14.90 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 03:35:54,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:35:54 BoogieIcfgContainer [2019-11-28 03:35:54,944 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:35:54,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:35:54,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:35:54,945 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:35:54,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:35:11" (3/4) ... [2019-11-28 03:35:54,949 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:35:55,012 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:35:55,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:35:55,014 INFO L168 Benchmark]: Toolchain (without parser) took 45714.41 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 266.3 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -225.5 MB). Peak memory consumption was 40.8 MB. Max. memory is 11.5 GB. [2019-11-28 03:35:55,015 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:35:55,016 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -99.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:35:55,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-11-28 03:35:55,017 INFO L168 Benchmark]: Boogie Preprocessor took 54.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:35:55,017 INFO L168 Benchmark]: RCFGBuilder took 1056.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 985.6 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:35:55,018 INFO L168 Benchmark]: BuchiAutomizer took 43649.27 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 178.8 MB). Free memory was 985.6 MB in the beginning and 1.2 GB in the end (delta: -201.7 MB). Peak memory consumption was 397.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:35:55,019 INFO L168 Benchmark]: Witness Printer took 68.48 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:35:55,022 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 767.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 87.6 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -99.2 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 111.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1056.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 985.6 MB in the end (delta: 68.4 MB). Peak memory consumption was 68.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43649.27 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 178.8 MB). Free memory was 985.6 MB in the beginning and 1.2 GB in the end (delta: -201.7 MB). Peak memory consumption was 397.7 MB. Max. memory is 11.5 GB. * Witness Printer took 68.48 ms. Allocated memory is still 1.3 GB. Free memory is still 1.2 GB. 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 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 350 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 43.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 42.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 271 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 350 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 632 SDtfs, 1088 SDslu, 934 SDs, 0 SdLazy, 138 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 709]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=6176} State at position 1 is {NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=6176, NULL=23522, NULL=0, NULL=23524, NULL=0, NULL=0, NULL=23531, NULL=23520, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ca23044=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1708e3c6=52, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fe3854a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62abf938=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@15fa913d=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f10d57c=0, NULL=0, NULL=0, tmp=0, NULL=23519, NULL=0, tmp___1=0, NULL=23517, NULL=6177, tmp___0=1, NULL=16029, cleanupTimeShifts=4, NULL=23516, NULL=16031, NULL=23530, NULL=23523, tmp=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=23525, \result=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=0, NULL=23514, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, \result=0, NULL=23529, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4816f3d5=0, NULL=0, NULL=0, \result=1, NULL=23528, NULL=23526, NULL=16030, NULL=0, retValue_acc=0, NULL=0, retValue_acc=1, retValue_acc=1, tmp___2=52, NULL=23518, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b0dc2a1=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@176f38a4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@633ff68f=0, \result=0, NULL=23533, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37e5d01d=0, NULL=23532, tmp___1=0, head=0, NULL=16032, NULL=0, NULL=0, NULL=23521, tmp=0, NULL=0, NULL=0, NULL=23527, NULL=23515} - 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; [L348] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L560] int waterLevel = 1; [L561] int methaneLevelCritical = 0; [L768] int pumpRunning = 0; [L769] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L700] int splverifierCounter ; [L701] int tmp ; [L702] int tmp___0 ; [L703] int tmp___1 ; [L704] int tmp___2 ; [L707] splverifierCounter = 0 Loop: [L709] COND TRUE 1 [L711] COND TRUE splverifierCounter < 4 [L717] tmp = __VERIFIER_nondet_int() [L719] COND FALSE !(\read(tmp)) [L727] tmp___0 = __VERIFIER_nondet_int() [L729] COND FALSE !(\read(tmp___0)) [L737] tmp___2 = __VERIFIER_nondet_int() [L739] COND TRUE \read(tmp___2) [L986] systemActive = 1 [L775] COND FALSE !(\read(pumpRunning)) [L782] COND TRUE \read(systemActive) [L830] int tmp ; [L833] COND FALSE !(\read(pumpRunning)) [L804] int tmp ; [L807] COND TRUE ! pumpRunning [L945] int retValue_acc ; [L946] int tmp ; [L947] int tmp___0 ; [L640] int retValue_acc ; [L643] COND TRUE waterLevel < 2 [L644] retValue_acc = 1 [L645] return (retValue_acc); [L951] tmp = isHighWaterSensorDry() [L953] COND TRUE \read(tmp) [L954] tmp___0 = 0 [L958] retValue_acc = tmp___0 [L959] return (retValue_acc); [L809] tmp = isHighWaterLevel() [L811] COND FALSE !(\read(tmp)) [L665] int tmp ; [L666] int tmp___0 ; [L667] int tmp___1 ; [L599] int retValue_acc ; [L602] retValue_acc = methaneLevelCritical [L603] return (retValue_acc); [L671] tmp = isMethaneLevelCritical() [L673] COND FALSE !(\read(tmp)) [L631] int retValue_acc ; [L634] retValue_acc = waterLevel [L635] return (retValue_acc); [L677] tmp___0 = getWaterLevel() [L679] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...