./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product22.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_product22.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 7879ca98f25531324d15e1db6b1d755ab21e7b97 .............................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:05:30,223 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:05:30,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:05:30,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:05:30,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:05:30,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:05:30,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:05:30,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:05:30,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:05:30,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:05:30,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:05:30,271 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:05:30,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:05:30,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:05:30,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:05:30,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:05:30,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:05:30,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:05:30,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:05:30,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:05:30,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:05:30,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:05:30,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:05:30,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:05:30,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:05:30,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:05:30,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:05:30,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:05:30,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:05:30,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:05:30,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:05:30,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:05:30,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:05:30,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:05:30,309 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:05:30,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:05:30,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:05:30,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:05:30,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:05:30,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:05:30,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:05:30,314 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:05:30,329 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:05:30,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:05:30,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:05:30,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:05:30,331 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:05:30,331 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:05:30,332 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:05:30,332 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:05:30,332 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:05:30,332 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:05:30,332 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:05:30,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:05:30,333 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:05:30,333 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:05:30,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:05:30,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:05:30,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:05:30,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:05:30,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:05:30,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:05:30,335 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:05:30,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:05:30,335 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:05:30,335 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:05:30,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:05:30,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:05:30,336 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:05:30,336 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:05:30,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:05:30,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:05:30,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:05:30,337 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:05:30,338 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:05:30,338 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 -> 7879ca98f25531324d15e1db6b1d755ab21e7b97 [2019-11-28 21:05:30,633 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:05:30,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:05:30,653 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:05:30,655 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:05:30,656 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:05:30,656 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product22.cil.c [2019-11-28 21:05:30,733 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c79b7260/bbcc944e240749aeb708a52cc8ce9444/FLAG35859ef08 [2019-11-28 21:05:31,296 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:05:31,296 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product22.cil.c [2019-11-28 21:05:31,317 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c79b7260/bbcc944e240749aeb708a52cc8ce9444/FLAG35859ef08 [2019-11-28 21:05:31,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c79b7260/bbcc944e240749aeb708a52cc8ce9444 [2019-11-28 21:05:31,572 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:05:31,574 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:05:31,575 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:05:31,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:05:31,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:05:31,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:05:31" (1/1) ... [2019-11-28 21:05:31,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19493923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:31, skipping insertion in model container [2019-11-28 21:05:31,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:05:31" (1/1) ... [2019-11-28 21:05:31,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:05:31,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:05:32,020 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:05:32,034 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:05:32,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:05:32,225 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:05:32,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32 WrapperNode [2019-11-28 21:05:32,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:05:32,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:05:32,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:05:32,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:05:32,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (1/1) ... [2019-11-28 21:05:32,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (1/1) ... [2019-11-28 21:05:32,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:05:32,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:05:32,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:05:32,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:05:32,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (1/1) ... [2019-11-28 21:05:32,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (1/1) ... [2019-11-28 21:05:32,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (1/1) ... [2019-11-28 21:05:32,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (1/1) ... [2019-11-28 21:05:32,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (1/1) ... [2019-11-28 21:05:32,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (1/1) ... [2019-11-28 21:05:32,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (1/1) ... [2019-11-28 21:05:32,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:05:32,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:05:32,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:05:32,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:05:32,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (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 21:05:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:05:32,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:05:32,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:05:32,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:05:33,216 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:05:33,216 INFO L287 CfgBuilder]: Removed 164 assume(true) statements. [2019-11-28 21:05:33,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:05:33 BoogieIcfgContainer [2019-11-28 21:05:33,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:05:33,219 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:05:33,219 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:05:33,223 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:05:33,224 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:05:33,224 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:05:31" (1/3) ... [2019-11-28 21:05:33,226 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a37e274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:05:33, skipping insertion in model container [2019-11-28 21:05:33,226 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:05:33,226 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:05:32" (2/3) ... [2019-11-28 21:05:33,227 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a37e274 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:05:33, skipping insertion in model container [2019-11-28 21:05:33,227 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:05:33,227 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:05:33" (3/3) ... [2019-11-28 21:05:33,229 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product22.cil.c [2019-11-28 21:05:33,278 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:05:33,278 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:05:33,278 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:05:33,279 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:05:33,279 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:05:33,280 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:05:33,280 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:05:33,280 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:05:33,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-28 21:05:33,329 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 21:05:33,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:05:33,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:05:33,340 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:05:33,340 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:05:33,341 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:05:33,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-28 21:05:33,348 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2019-11-28 21:05:33,348 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:05:33,349 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:05:33,350 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:05:33,350 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:05:33,356 INFO L794 eck$LassoCheckResult]: Stem: 75#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 8#L-1true havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 108#L269true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 10#L277true main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 103#L233true assume 0 != main_~tmp~0; 96#L206true havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4#L921-1true [2019-11-28 21:05:33,357 INFO L796 eck$LassoCheckResult]: Loop: 4#L921-1true assume !false; 83#L484true assume test_~splverifierCounter~0 < 4; 48#L485true test_~tmp~4 := test_#t~nondet32;havoc test_#t~nondet32; 52#L493true assume !(0 != test_~tmp~4); 54#L493-1true test_~tmp___0~1 := test_#t~nondet33;havoc test_#t~nondet33; 99#L503true assume !(0 != test_~tmp___0~1); 100#L503-1true test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 34#L513true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 38#L521-2true assume !(0 != ~pumpRunning~0); 85#L294true assume !(0 != ~systemActive~0); 39#L301true havoc __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 110#L90-1true __utac_acc__Specification3_spec__1_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 22#L915true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 4#L921-1true [2019-11-28 21:05:33,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:33,365 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-28 21:05:33,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:33,375 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742093875] [2019-11-28 21:05:33,376 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:33,739 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:33,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:33,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1679344202, now seen corresponding path program 1 times [2019-11-28 21:05:33,741 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:33,742 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766770603] [2019-11-28 21:05:33,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:33,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:05:33,796 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 21:05:33,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766770603] [2019-11-28 21:05:33,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:05:33,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:05:33,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480220446] [2019-11-28 21:05:33,804 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:05:33,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:05:33,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:05:33,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:05:33,825 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2019-11-28 21:05:33,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:05:33,886 INFO L93 Difference]: Finished difference Result 108 states and 152 transitions. [2019-11-28 21:05:33,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:05:33,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 108 states and 152 transitions. [2019-11-28 21:05:33,893 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-28 21:05:33,899 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 108 states to 101 states and 144 transitions. [2019-11-28 21:05:33,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2019-11-28 21:05:33,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2019-11-28 21:05:33,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 144 transitions. [2019-11-28 21:05:33,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:05:33,903 INFO L688 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-28 21:05:33,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 144 transitions. [2019-11-28 21:05:33,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2019-11-28 21:05:33,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2019-11-28 21:05:33,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2019-11-28 21:05:33,942 INFO L711 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-28 21:05:33,942 INFO L591 BuchiCegarLoop]: Abstraction has 101 states and 144 transitions. [2019-11-28 21:05:33,942 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:05:33,942 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 144 transitions. [2019-11-28 21:05:33,945 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-28 21:05:33,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:05:33,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:05:33,946 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:05:33,946 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:05:33,947 INFO L794 eck$LassoCheckResult]: Stem: 313#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 236#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 237#L269 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 240#L277 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 241#L233 assume 0 != main_~tmp~0; 325#L206 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 226#L921-1 [2019-11-28 21:05:33,947 INFO L796 eck$LassoCheckResult]: Loop: 226#L921-1 assume !false; 228#L484 assume test_~splverifierCounter~0 < 4; 294#L485 test_~tmp~4 := test_#t~nondet32;havoc test_#t~nondet32; 295#L493 assume !(0 != test_~tmp~4); 245#L493-1 test_~tmp___0~1 := test_#t~nondet33;havoc test_#t~nondet33; 299#L503 assume !(0 != test_~tmp___0~1); 317#L503-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 278#L513 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 279#L521-2 assume !(0 != ~pumpRunning~0); 283#L294 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 318#L352 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 270#L326-1 assume !(0 != ~pumpRunning~0); 269#L301 havoc __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 285#L90-1 __utac_acc__Specification3_spec__1_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 261#L915 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 226#L921-1 [2019-11-28 21:05:33,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:33,947 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-28 21:05:33,950 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:33,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710360443] [2019-11-28 21:05:33,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:34,077 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:34,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:34,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1091435480, now seen corresponding path program 1 times [2019-11-28 21:05:34,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:34,079 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300961518] [2019-11-28 21:05:34,079 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:34,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:34,093 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:34,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:34,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1358149570, now seen corresponding path program 1 times [2019-11-28 21:05:34,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:34,095 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695041088] [2019-11-28 21:05:34,095 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:05:34,203 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 21:05:34,204 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695041088] [2019-11-28 21:05:34,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:05:34,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:05:34,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593142135] [2019-11-28 21:05:34,311 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2019-11-28 21:05:34,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:05:34,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 21:05:34,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-28 21:05:34,371 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. cyclomatic complexity: 45 Second operand 5 states. [2019-11-28 21:05:34,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:05:34,639 INFO L93 Difference]: Finished difference Result 355 states and 516 transitions. [2019-11-28 21:05:34,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-28 21:05:34,640 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 355 states and 516 transitions. [2019-11-28 21:05:34,650 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 241 [2019-11-28 21:05:34,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 355 states to 355 states and 516 transitions. [2019-11-28 21:05:34,667 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 355 [2019-11-28 21:05:34,669 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 355 [2019-11-28 21:05:34,670 INFO L73 IsDeterministic]: Start isDeterministic. Operand 355 states and 516 transitions. [2019-11-28 21:05:34,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:05:34,676 INFO L688 BuchiCegarLoop]: Abstraction has 355 states and 516 transitions. [2019-11-28 21:05:34,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states and 516 transitions. [2019-11-28 21:05:34,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 196. [2019-11-28 21:05:34,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2019-11-28 21:05:34,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 278 transitions. [2019-11-28 21:05:34,716 INFO L711 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2019-11-28 21:05:34,716 INFO L591 BuchiCegarLoop]: Abstraction has 196 states and 278 transitions. [2019-11-28 21:05:34,716 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:05:34,716 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 196 states and 278 transitions. [2019-11-28 21:05:34,719 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2019-11-28 21:05:34,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:05:34,720 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:05:34,721 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-28 21:05:34,721 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:05:34,722 INFO L794 eck$LassoCheckResult]: Stem: 805#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~string16.base, #t~string16.offset := #Ultimate.allocOnStack(13);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string22.base, #t~string22.offset, 1);call write~init~int(80, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(117, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(109, #t~string22.base, 3 + #t~string22.offset, 1);call write~init~int(112, #t~string22.base, 4 + #t~string22.offset, 1);call write~init~int(58, #t~string22.base, 5 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 6 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(110, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(102, #t~string26.base, 2 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 3 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string28.base, #t~string28.offset, 1);call write~init~int(32, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string30.base, #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 1 + #t~string30.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(30);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(9);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 712#L-1 havoc main_#res;havoc main_#t~ret10, main_~retValue_acc~3, main_~tmp~0;havoc main_~retValue_acc~3;havoc main_~tmp~0; 713#L269 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 714#L277 main_#t~ret10 := valid_product_#res;main_~tmp~0 := main_#t~ret10;havoc main_#t~ret10; 715#L233 assume 0 != main_~tmp~0; 821#L206 havoc test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_#t~nondet35, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 822#L921-1 [2019-11-28 21:05:34,722 INFO L796 eck$LassoCheckResult]: Loop: 822#L921-1 assume !false; 873#L484 assume test_~splverifierCounter~0 < 4; 780#L485 test_~tmp~4 := test_#t~nondet32;havoc test_#t~nondet32; 781#L493 assume !(0 != test_~tmp~4); 721#L493-1 test_~tmp___0~1 := test_#t~nondet33;havoc test_#t~nondet33; 788#L503 assume !(0 != test_~tmp___0~1); 825#L503-1 test_~tmp___2~0 := test_#t~nondet34;havoc test_#t~nondet34; 826#L513 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 887#L521-2 assume !(0 != ~pumpRunning~0); 886#L294 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret13, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 883#L352 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret12, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 746#L326-1 assume !(0 != ~pumpRunning~0); 745#L301 havoc __utac_acc__Specification3_spec__1_#t~ret71, __utac_acc__Specification3_spec__1_#t~ret72, __utac_acc__Specification3_spec__1_#t~ret73, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;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; 831#L90-1 __utac_acc__Specification3_spec__1_#t~ret71 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret71;havoc __utac_acc__Specification3_spec__1_#t~ret71; 832#L915 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);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#L122 __utac_acc__Specification3_spec__1_#t~ret72 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret72;havoc __utac_acc__Specification3_spec__1_#t~ret72; 751#L921 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 822#L921-1 [2019-11-28 21:05:34,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:34,723 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-28 21:05:34,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:34,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132428613] [2019-11-28 21:05:34,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:34,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:34,841 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:34,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:34,842 INFO L82 PathProgramCache]: Analyzing trace with hash -897468678, now seen corresponding path program 1 times [2019-11-28 21:05:34,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:34,843 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952383919] [2019-11-28 21:05:34,844 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:34,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:34,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:34,867 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:34,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:05:34,868 INFO L82 PathProgramCache]: Analyzing trace with hash -488313836, now seen corresponding path program 1 times [2019-11-28 21:05:34,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:05:34,869 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851796566] [2019-11-28 21:05:34,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:05:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:34,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:05:34,997 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:05:35,107 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-11-28 21:06:04,247 WARN L192 SmtUtils]: Spent 29.08 s on a formula simplification. DAG size of input: 452 DAG size of output: 400 [2019-11-28 21:06:17,960 WARN L192 SmtUtils]: Spent 13.71 s on a formula simplification that was a NOOP. DAG size: 400 [2019-11-28 21:06:18,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:06:18 BoogieIcfgContainer [2019-11-28 21:06:18,032 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:06:18,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:06:18,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:06:18,033 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:06:18,033 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:05:33" (3/4) ... [2019-11-28 21:06:18,037 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:06:18,096 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:06:18,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:06:18,099 INFO L168 Benchmark]: Toolchain (without parser) took 46525.20 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 306.7 MB). Free memory was 961.7 MB in the beginning and 1.2 GB in the end (delta: -219.9 MB). Peak memory consumption was 86.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:18,099 INFO L168 Benchmark]: CDTParser took 0.26 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 21:06:18,100 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:18,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:18,101 INFO L168 Benchmark]: Boogie Preprocessor took 70.73 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 21:06:18,102 INFO L168 Benchmark]: RCFGBuilder took 840.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:18,103 INFO L168 Benchmark]: BuchiAutomizer took 44812.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -142.5 MB). Peak memory consumption was 364.0 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:18,104 INFO L168 Benchmark]: Witness Printer took 64.97 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:06:18,107 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 651.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 70.73 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 840.11 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 71.2 MB). Peak memory consumption was 71.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 44812.96 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -142.5 MB). Peak memory consumption was 364.0 MB. Max. memory is 11.5 GB. * Witness Printer took 64.97 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 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 196 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 44.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 44.1s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 159 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 196 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 349 SDtfs, 686 SDslu, 604 SDs, 0 SdLazy, 82 SolverSat, 24 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: 483]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=8543} State at position 1 is {NULL=0, retValue_acc=0, NULL=0, NULL=8561, NULL=8549, NULL=0, NULL=8543, retValue_acc=0, NULL=8553, NULL=8566, NULL=8558, NULL=8563, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@615d9e67=0, tmp=0, NULL=0, tmp=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71bc0e8f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a1ca54=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@178019bd=0, NULL=8556, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44455f31=0, NULL=8548, NULL=8551, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47d0e581=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@481d0b83=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a87001a=0, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=8547, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, retValue_acc=1, NULL=8555, head=0, pumpRunning=0, tmp=1, NULL=8562, \result=0, NULL=8565, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ae90ad8=0, retValue_acc=1, NULL=8545, NULL=8560, NULL=8559, tmp___2=64, NULL=8567, tmp___0=0, NULL=8544, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=8554, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70fac538=0, NULL=8546, tmp=0, tmp___1=0, head=0, NULL=0, NULL=0, NULL=8557, NULL=0, NULL=0, NULL=8550, NULL=8552, NULL=0, NULL=8564, NULL=8568} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L145] int cleanupTimeShifts = 4; [L286] int pumpRunning = 0; [L287] int systemActive = 1; [L709] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L224] int retValue_acc ; [L225] int tmp ; [L273] int retValue_acc ; [L276] retValue_acc = 1 [L277] return (retValue_acc); [L231] tmp = valid_product() [L233] COND TRUE \read(tmp) [L474] int splverifierCounter ; [L475] int tmp ; [L476] int tmp___0 ; [L477] int tmp___1 ; [L478] int tmp___2 ; [L481] splverifierCounter = 0 Loop: [L483] COND TRUE 1 [L485] COND TRUE splverifierCounter < 4 [L491] tmp = __VERIFIER_nondet_int() [L493] COND FALSE !(\read(tmp)) [L501] tmp___0 = __VERIFIER_nondet_int() [L503] COND FALSE !(\read(tmp___0)) [L511] tmp___2 = __VERIFIER_nondet_int() [L513] COND TRUE \read(tmp___2) [L468] systemActive = 1 [L294] COND FALSE !(\read(pumpRunning)) [L301] COND TRUE \read(systemActive) [L349] int tmp ; [L352] COND FALSE !(\read(pumpRunning)) [L323] int tmp ; [L326] COND FALSE !(\read(pumpRunning)) [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L919] tmp___0 = getWaterLevel() [L921] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...