./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c 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_product04.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 77951208f64a8e7a2de110a05be31eef72f84584 ........................................................................................................................................................................................................................................................................................................................................................................................................................ 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 0.1.25-f470102 [2019-11-28 21:04:30,235 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:04:30,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:04:30,250 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:04:30,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:04:30,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:04:30,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:04:30,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:04:30,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:04:30,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:04:30,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:04:30,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:04:30,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:04:30,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:04:30,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:04:30,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:04:30,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:04:30,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:04:30,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:04:30,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:04:30,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:04:30,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:04:30,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:04:30,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:04:30,279 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:04:30,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:04:30,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:04:30,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:04:30,281 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:04:30,282 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:04:30,283 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:04:30,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:04:30,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:04:30,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:04:30,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:04:30,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:04:30,288 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:04:30,288 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:04:30,288 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:04:30,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:04:30,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:04:30,291 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:04:30,322 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:04:30,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:04:30,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:04:30,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:04:30,329 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:04:30,329 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:04:30,329 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:04:30,330 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:04:30,330 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:04:30,330 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:04:30,331 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:04:30,332 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:04:30,332 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:04:30,333 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:04:30,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:04:30,333 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:04:30,333 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:04:30,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:04:30,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:04:30,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:04:30,336 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:04:30,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:04:30,338 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:04:30,339 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:04:30,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:04:30,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:04:30,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:04:30,341 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:04:30,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:04:30,342 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:04:30,342 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:04:30,343 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:04:30,344 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:04:30,344 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 -> 77951208f64a8e7a2de110a05be31eef72f84584 [2019-11-28 21:04:30,668 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:04:30,681 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:04:30,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:04:30,686 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:04:30,687 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:04:30,687 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2019-11-28 21:04:30,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be5b5d722/0c20e454dd1d440db769e89b3be4065a/FLAGea7d5fb1d [2019-11-28 21:04:31,360 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:04:31,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product04.cil.c [2019-11-28 21:04:31,385 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be5b5d722/0c20e454dd1d440db769e89b3be4065a/FLAGea7d5fb1d [2019-11-28 21:04:31,657 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be5b5d722/0c20e454dd1d440db769e89b3be4065a [2019-11-28 21:04:31,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:04:31,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:04:31,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:04:31,663 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:04:31,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:04:31,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:04:31" (1/1) ... [2019-11-28 21:04:31,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d705b83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:31, skipping insertion in model container [2019-11-28 21:04:31,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:04:31" (1/1) ... [2019-11-28 21:04:31,677 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:04:31,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:04:32,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:04:32,126 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:04:32,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:04:32,240 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:04:32,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32 WrapperNode [2019-11-28 21:04:32,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:04:32,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:04:32,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:04:32,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:04:32,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (1/1) ... [2019-11-28 21:04:32,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (1/1) ... [2019-11-28 21:04:32,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:04:32,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:04:32,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:04:32,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:04:32,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (1/1) ... [2019-11-28 21:04:32,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (1/1) ... [2019-11-28 21:04:32,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (1/1) ... [2019-11-28 21:04:32,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (1/1) ... [2019-11-28 21:04:32,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (1/1) ... [2019-11-28 21:04:32,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (1/1) ... [2019-11-28 21:04:32,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (1/1) ... [2019-11-28 21:04:32,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:04:32,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:04:32,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:04:32,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:04:32,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (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 21:04:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:04:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:04:32,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:04:32,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:04:33,202 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:04:33,203 INFO L287 CfgBuilder]: Removed 78 assume(true) statements. [2019-11-28 21:04:33,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:04:33 BoogieIcfgContainer [2019-11-28 21:04:33,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:04:33,206 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:04:33,206 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:04:33,210 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:04:33,211 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:04:33,211 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:04:31" (1/3) ... [2019-11-28 21:04:33,212 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1891580e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:04:33, skipping insertion in model container [2019-11-28 21:04:33,213 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:04:33,213 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:04:32" (2/3) ... [2019-11-28 21:04:33,214 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1891580e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:04:33, skipping insertion in model container [2019-11-28 21:04:33,214 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:04:33,214 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:04:33" (3/3) ... [2019-11-28 21:04:33,216 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2019-11-28 21:04:33,272 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:04:33,272 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:04:33,272 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:04:33,273 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:04:33,273 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:04:33,273 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:04:33,274 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:04:33,274 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:04:33,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states. [2019-11-28 21:04:33,339 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2019-11-28 21:04:33,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:33,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:33,348 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:04:33,349 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:33,349 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:04:33,349 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states. [2019-11-28 21:04:33,360 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2019-11-28 21:04:33,360 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:33,360 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:33,361 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:04:33,361 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:33,367 INFO L794 eck$LassoCheckResult]: Stem: 34#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 12#L-1true havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 55#L517true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 57#L525true main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 38#L615true assume 0 != main_~tmp~3; 63#L591true havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, 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; 6#L654-1true [2019-11-28 21:04:33,368 INFO L796 eck$LassoCheckResult]: Loop: 6#L654-1true assume !false; 61#L818true assume test_~splverifierCounter~0 < 4; 14#L819true test_~tmp~5 := test_#t~nondet67;havoc test_#t~nondet67; 45#L827true assume !(0 != test_~tmp~5); 49#L827-1true test_~tmp___0~1 := test_#t~nondet68;havoc test_#t~nondet68; 23#L837true assume !(0 != test_~tmp___0~1); 3#L837-1true test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 64#L847true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 9#L855-1true assume !(0 != ~pumpRunning~0); 30#L684true assume !(0 != ~systemActive~0); 15#L691true 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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 56#L89true __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; 36#L648true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 6#L654-1true [2019-11-28 21:04:33,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:33,376 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:04:33,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:33,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541586255] [2019-11-28 21:04:33,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:33,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:33,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:33,775 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:33,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:33,776 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941121, now seen corresponding path program 1 times [2019-11-28 21:04:33,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:33,777 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848203554] [2019-11-28 21:04:33,777 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:04:33,835 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 21:04:33,835 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848203554] [2019-11-28 21:04:33,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:04:33,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:04:33,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756023597] [2019-11-28 21:04:33,842 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:04:33,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:04:33,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:04:33,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:04:33,858 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2019-11-28 21:04:33,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:04:33,951 INFO L93 Difference]: Finished difference Result 118 states and 162 transitions. [2019-11-28 21:04:33,952 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:04:33,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 162 transitions. [2019-11-28 21:04:33,959 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 74 [2019-11-28 21:04:33,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 104 states and 147 transitions. [2019-11-28 21:04:33,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 104 [2019-11-28 21:04:33,967 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 104 [2019-11-28 21:04:33,968 INFO L73 IsDeterministic]: Start isDeterministic. Operand 104 states and 147 transitions. [2019-11-28 21:04:33,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:04:33,969 INFO L688 BuchiCegarLoop]: Abstraction has 104 states and 147 transitions. [2019-11-28 21:04:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states and 147 transitions. [2019-11-28 21:04:34,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 102. [2019-11-28 21:04:34,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-11-28 21:04:34,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 144 transitions. [2019-11-28 21:04:34,006 INFO L711 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2019-11-28 21:04:34,006 INFO L591 BuchiCegarLoop]: Abstraction has 102 states and 144 transitions. [2019-11-28 21:04:34,007 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:04:34,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 102 states and 144 transitions. [2019-11-28 21:04:34,009 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 72 [2019-11-28 21:04:34,009 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:34,009 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:34,010 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:04:34,010 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:34,011 INFO L794 eck$LassoCheckResult]: Stem: 232#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 208#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 209#L517 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 260#L525 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 237#L615 assume 0 != main_~tmp~3; 238#L591 havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, 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; 192#L654-1 [2019-11-28 21:04:34,011 INFO L796 eck$LassoCheckResult]: Loop: 192#L654-1 assume !false; 196#L818 assume test_~splverifierCounter~0 < 4; 212#L819 test_~tmp~5 := test_#t~nondet67;havoc test_#t~nondet67; 213#L827 assume !(0 != test_~tmp~5); 248#L827-1 test_~tmp___0~1 := test_#t~nondet68;havoc test_#t~nondet68; 223#L837 assume !(0 != test_~tmp___0~1); 189#L837-1 test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 190#L847 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 199#L855-1 assume !(0 != ~pumpRunning~0); 204#L684 assume 0 != ~systemActive~0; 214#L691 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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 215#L89 __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; 234#L648 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 192#L654-1 [2019-11-28 21:04:34,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:34,012 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:04:34,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:34,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193778706] [2019-11-28 21:04:34,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:34,201 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:34,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:34,202 INFO L82 PathProgramCache]: Analyzing trace with hash -1673030494, now seen corresponding path program 1 times [2019-11-28 21:04:34,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:34,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122431428] [2019-11-28 21:04:34,205 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:34,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:34,222 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:34,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:34,223 INFO L82 PathProgramCache]: Analyzing trace with hash 41248444, now seen corresponding path program 1 times [2019-11-28 21:04:34,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:34,223 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086819191] [2019-11-28 21:04:34,225 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:04:34,309 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 21:04:34,309 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086819191] [2019-11-28 21:04:34,310 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:04:34,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:04:34,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400731991] [2019-11-28 21:04:34,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:04:34,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:04:34,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:04:34,466 INFO L87 Difference]: Start difference. First operand 102 states and 144 transitions. cyclomatic complexity: 45 Second operand 5 states. [2019-11-28 21:04:34,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:04:34,674 INFO L93 Difference]: Finished difference Result 319 states and 461 transitions. [2019-11-28 21:04:34,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:04:34,675 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 461 transitions. [2019-11-28 21:04:34,687 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 240 [2019-11-28 21:04:34,698 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 319 states and 461 transitions. [2019-11-28 21:04:34,699 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 319 [2019-11-28 21:04:34,700 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 319 [2019-11-28 21:04:34,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 319 states and 461 transitions. [2019-11-28 21:04:34,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:04:34,705 INFO L688 BuchiCegarLoop]: Abstraction has 319 states and 461 transitions. [2019-11-28 21:04:34,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states and 461 transitions. [2019-11-28 21:04:34,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 198. [2019-11-28 21:04:34,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2019-11-28 21:04:34,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 274 transitions. [2019-11-28 21:04:34,731 INFO L711 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2019-11-28 21:04:34,731 INFO L591 BuchiCegarLoop]: Abstraction has 198 states and 274 transitions. [2019-11-28 21:04:34,731 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:04:34,733 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 198 states and 274 transitions. [2019-11-28 21:04:34,737 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 144 [2019-11-28 21:04:34,737 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:04:34,738 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:04:34,738 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:04:34,738 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:04:34,739 INFO L794 eck$LassoCheckResult]: Stem: 674#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(13);call #t~string3.base, #t~string3.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string3.base, #t~string3.offset, 1);call write~init~int(77, #t~string3.base, 1 + #t~string3.offset, 1);call write~init~int(101, #t~string3.base, 2 + #t~string3.offset, 1);call write~init~int(116, #t~string3.base, 3 + #t~string3.offset, 1);call write~init~int(104, #t~string3.base, 4 + #t~string3.offset, 1);call write~init~int(58, #t~string3.base, 5 + #t~string3.offset, 1);call write~init~int(0, #t~string3.base, 6 + #t~string3.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string5.base, #t~string5.offset, 1);call write~init~int(82, #t~string5.base, 1 + #t~string5.offset, 1);call write~init~int(73, #t~string5.base, 2 + #t~string5.offset, 1);call write~init~int(84, #t~string5.base, 3 + #t~string5.offset, 1);call write~init~int(0, #t~string5.base, 4 + #t~string5.offset, 1);call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string7.base, #t~string7.offset, 1);call write~init~int(75, #t~string7.base, 1 + #t~string7.offset, 1);call write~init~int(0, #t~string7.base, 2 + #t~string7.offset, 1);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string9.base, #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 1 + #t~string9.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(13);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string58.base, #t~string58.offset, 1);call write~init~int(80, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(117, #t~string58.base, 2 + #t~string58.offset, 1);call write~init~int(109, #t~string58.base, 3 + #t~string58.offset, 1);call write~init~int(112, #t~string58.base, 4 + #t~string58.offset, 1);call write~init~int(58, #t~string58.base, 5 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 6 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(110, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 2 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(102, #t~string62.base, 2 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 3 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string64.base, #t~string64.offset, 1);call write~init~int(32, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string66.base, #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 1 + #t~string66.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 648#L-1 havoc main_#res;havoc main_#t~ret46, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 649#L517 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 703#L525 main_#t~ret46 := valid_product_#res;main_~tmp~3 := main_#t~ret46;havoc main_#t~ret46; 678#L615 assume 0 != main_~tmp~3; 679#L591 havoc test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, 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; 710#L654-1 [2019-11-28 21:04:34,739 INFO L796 eck$LassoCheckResult]: Loop: 710#L654-1 assume !false; 739#L818 assume test_~splverifierCounter~0 < 4; 654#L819 test_~tmp~5 := test_#t~nondet67;havoc test_#t~nondet67; 655#L827 assume !(0 != test_~tmp~5); 692#L827-1 test_~tmp___0~1 := test_#t~nondet68;havoc test_#t~nondet68; 664#L837 assume !(0 != test_~tmp___0~1); 628#L837-1 test_~tmp___2~0 := test_#t~nondet69;havoc test_#t~nondet69; 629#L847 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 642#L855-1 assume !(0 != ~pumpRunning~0); 644#L684 assume 0 != ~systemActive~0; 753#L691 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~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 752#L89 __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; 751#L648 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 750#L121 __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; 748#L654 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 710#L654-1 [2019-11-28 21:04:34,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:34,740 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:04:34,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:34,740 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865637429] [2019-11-28 21:04:34,741 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:34,873 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:34,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:34,873 INFO L82 PathProgramCache]: Analyzing trace with hash -1464530636, now seen corresponding path program 1 times [2019-11-28 21:04:34,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:34,874 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167282468] [2019-11-28 21:04:34,874 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:34,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:34,892 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:34,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:04:34,893 INFO L82 PathProgramCache]: Analyzing trace with hash 985054414, now seen corresponding path program 1 times [2019-11-28 21:04:34,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:04:34,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370339262] [2019-11-28 21:04:34,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:04:34,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:34,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:04:35,011 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:04:57,412 WARN L192 SmtUtils]: Spent 22.26 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:05:08,530 WARN L192 SmtUtils]: Spent 11.12 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:05:08,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:05:08 BoogieIcfgContainer [2019-11-28 21:05:08,611 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:05:08,612 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:05:08,612 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:05:08,612 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:05:08,612 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:04:33" (3/4) ... [2019-11-28 21:05:08,615 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:05:08,700 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:05:08,700 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:05:08,704 INFO L168 Benchmark]: Toolchain (without parser) took 37042.68 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 300.4 MB). Free memory was 956.3 MB in the beginning and 1.3 GB in the end (delta: -299.4 MB). Peak memory consumption was 974.0 kB. Max. memory is 11.5 GB. [2019-11-28 21:05:08,705 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:05:08,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 578.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:08,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:08,707 INFO L168 Benchmark]: Boogie Preprocessor took 54.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:05:08,708 INFO L168 Benchmark]: RCFGBuilder took 827.31 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: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:08,709 INFO L168 Benchmark]: BuchiAutomizer took 35404.95 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -193.7 MB). Peak memory consumption was 390.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:08,714 INFO L168 Benchmark]: Witness Printer took 88.89 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:05:08,718 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 578.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -166.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.86 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 827.31 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: 43.9 MB). Peak memory consumption was 43.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35404.95 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -193.7 MB). Peak memory consumption was 390.3 MB. Max. memory is 11.5 GB. * Witness Printer took 88.89 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 198 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 34.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 123 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 198 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 186 SDtfs, 347 SDslu, 361 SDs, 0 SdLazy, 53 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 817]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1905ceac=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=112, NULL=1, NULL=0, NULL=0, NULL=9231, NULL=0, retValue_acc=0, NULL=634, NULL=0, NULL=9233, NULL=9240, methaneLevelCritical=0, NULL=9227, tmp=0, NULL=9226, NULL=9228, NULL=0, tmp___1=0, NULL=9237, tmp___0=1, NULL=9222, NULL=9229, cleanupTimeShifts=4, NULL=9223, NULL=9236, tmp=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=9235, NULL=0, NULL=0, NULL=9242, NULL=0, NULL=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, NULL=9238, tmp=1, NULL=9241, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@389a1ea0=56, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c1982d4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5daf75ad=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21b7a8e3=0, NULL=9221, tmp___2=56, NULL=9220, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57b69c6f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59bb32c0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37d887c2=0, \result=0, NULL=9225, tmp___1=0, head=0, NULL=0, NULL=9230, NULL=0, NULL=0, NULL=9232, NULL=0, NULL=9224, NULL=9234, NULL=9239} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L530] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; [L606] int retValue_acc ; [L607] int tmp ; [L521] int retValue_acc ; [L524] retValue_acc = 1 [L525] return (retValue_acc); [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L808] int splverifierCounter ; [L809] int tmp ; [L810] int tmp___0 ; [L811] int tmp___1 ; [L812] int tmp___2 ; [L815] splverifierCounter = 0 Loop: [L817] COND TRUE 1 [L819] COND TRUE splverifierCounter < 4 [L825] tmp = __VERIFIER_nondet_int() [L827] COND FALSE !(\read(tmp)) [L835] tmp___0 = __VERIFIER_nondet_int() [L837] COND FALSE !(\read(tmp___0)) [L845] tmp___2 = __VERIFIER_nondet_int() [L847] COND TRUE \read(tmp___2) [L802] systemActive = 1 [L684] COND FALSE !(\read(pumpRunning)) [L691] COND TRUE \read(systemActive) [L640] int tmp ; [L641] int tmp___0 ; [L642] int tmp___1 ; [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L646] tmp = isMethaneLevelCritical() [L648] COND FALSE !(\read(tmp)) [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L652] tmp___0 = getWaterLevel() [L654] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...