./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 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_product64.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 351e1061dd8393b15ba9fc7223df15ae9d3170ab ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 20:04:03,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:04:03,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:04:03,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:04:03,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:04:03,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:04:03,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:04:03,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:04:03,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:04:03,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:04:03,299 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:04:03,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:04:03,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:04:03,306 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:04:03,307 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:04:03,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:04:03,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:04:03,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:04:03,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:04:03,318 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:04:03,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:04:03,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:04:03,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:04:03,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:04:03,335 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:04:03,336 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:04:03,336 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:04:03,337 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:04:03,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:04:03,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:04:03,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:04:03,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:04:03,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:04:03,340 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:04:03,341 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:04:03,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:04:03,342 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:04:03,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:04:03,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:04:03,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:04:03,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:04:03,345 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:04:03,362 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:04:03,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:04:03,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:04:03,363 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:04:03,364 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:04:03,364 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:04:03,364 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:04:03,364 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:04:03,364 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:04:03,365 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:04:03,365 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:04:03,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:04:03,365 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:04:03,366 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:04:03,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:04:03,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:04:03,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:04:03,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:04:03,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:04:03,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:04:03,367 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:04:03,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:04:03,367 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:04:03,368 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:04:03,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:04:03,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:04:03,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:04:03,368 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:04:03,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:04:03,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:04:03,369 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:04:03,370 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:04:03,370 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 -> 351e1061dd8393b15ba9fc7223df15ae9d3170ab [2019-11-19 20:04:03,736 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:04:03,751 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:04:03,755 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:04:03,757 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:04:03,758 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:04:03,758 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-11-19 20:04:03,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06861eff5/9f32b7257cca411e91cf8f937c1988ed/FLAGdfe64d256 [2019-11-19 20:04:04,433 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:04:04,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product64.cil.c [2019-11-19 20:04:04,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06861eff5/9f32b7257cca411e91cf8f937c1988ed/FLAGdfe64d256 [2019-11-19 20:04:04,733 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06861eff5/9f32b7257cca411e91cf8f937c1988ed [2019-11-19 20:04:04,736 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:04:04,738 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:04:04,739 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:04:04,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:04:04,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:04:04,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:04" (1/1) ... [2019-11-19 20:04:04,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49fb18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:04, skipping insertion in model container [2019-11-19 20:04:04,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:04:04" (1/1) ... [2019-11-19 20:04:04,755 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:04:04,813 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:04:05,268 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:04:05,285 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:04:05,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:04:05,448 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:04:05,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05 WrapperNode [2019-11-19 20:04:05,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:04:05,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:04:05,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:04:05,450 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:04:05,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (1/1) ... [2019-11-19 20:04:05,476 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (1/1) ... [2019-11-19 20:04:05,553 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:04:05,554 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:04:05,554 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:04:05,554 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:04:05,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (1/1) ... [2019-11-19 20:04:05,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (1/1) ... [2019-11-19 20:04:05,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (1/1) ... [2019-11-19 20:04:05,596 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (1/1) ... [2019-11-19 20:04:05,635 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (1/1) ... [2019-11-19 20:04:05,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (1/1) ... [2019-11-19 20:04:05,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (1/1) ... [2019-11-19 20:04:05,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:04:05,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:04:05,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:04:05,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:04:05,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (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 [2019-11-19 20:04:05,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:04:05,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 20:04:05,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:04:05,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:04:06,975 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:04:06,975 INFO L285 CfgBuilder]: Removed 360 assume(true) statements. [2019-11-19 20:04:06,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:06 BoogieIcfgContainer [2019-11-19 20:04:06,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:04:06,977 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:04:06,978 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:04:06,982 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:04:06,983 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:04:06,983 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:04:04" (1/3) ... [2019-11-19 20:04:06,985 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5703b328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:04:06, skipping insertion in model container [2019-11-19 20:04:06,985 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:04:06,985 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:04:05" (2/3) ... [2019-11-19 20:04:06,986 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5703b328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:04:06, skipping insertion in model container [2019-11-19 20:04:06,986 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:04:06,986 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:06" (3/3) ... [2019-11-19 20:04:06,990 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2019-11-19 20:04:07,042 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:04:07,043 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:04:07,043 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:04:07,043 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:04:07,044 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:04:07,044 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:04:07,044 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:04:07,044 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:04:07,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states. [2019-11-19 20:04:07,126 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-11-19 20:04:07,130 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:04:07,130 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:04:07,140 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:04:07,140 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:04:07,141 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:04:07,141 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 230 states. [2019-11-19 20:04:07,149 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 151 [2019-11-19 20:04:07,149 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:04:07,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:04:07,151 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:04:07,151 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:04:07,158 INFO L794 eck$LassoCheckResult]: Stem: 103#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 15#L-1true havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 22#L65true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 122#L73true main_#t~ret73 := valid_product_#res;main_~tmp~10 := main_#t~ret73;havoc main_#t~ret73; 68#L978true assume 0 != main_~tmp~10; 192#L955true havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 173#L1016-1true [2019-11-19 20:04:07,159 INFO L796 eck$LassoCheckResult]: Loop: 173#L1016-1true assume !false; 118#L368true assume test_~splverifierCounter~0 < 4; 102#L369true test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 183#L377true assume !(0 != test_~tmp~6); 186#L377-1true test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 119#L387true assume !(0 != test_~tmp___0~2); 121#L387-1true test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 162#L397true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 83#L405-1true assume !(0 != ~pumpRunning~0); 25#L98true assume !(0 != ~systemActive~0); 169#L105true havoc __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_#t~ret75, __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 210#L470-5true __utac_acc__Specification3_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret74;havoc __utac_acc__Specification3_spec__1_#t~ret74; 189#L1010true assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 173#L1016-1true [2019-11-19 20:04:07,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:07,166 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-19 20:04:07,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:07,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626541887] [2019-11-19 20:04:07,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:08,030 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:08,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:08,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1665583745, now seen corresponding path program 1 times [2019-11-19 20:04:08,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:08,034 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710990966] [2019-11-19 20:04:08,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:04:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:04:08,095 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710990966] [2019-11-19 20:04:08,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:04:08,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:04:08,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317601146] [2019-11-19 20:04:08,103 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:04:08,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:04:08,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:04:08,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:04:08,122 INFO L87 Difference]: Start difference. First operand 230 states. Second operand 3 states. [2019-11-19 20:04:08,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:04:08,254 INFO L93 Difference]: Finished difference Result 454 states and 666 transitions. [2019-11-19 20:04:08,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:04:08,258 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 454 states and 666 transitions. [2019-11-19 20:04:08,267 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 298 [2019-11-19 20:04:08,278 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 454 states to 440 states and 651 transitions. [2019-11-19 20:04:08,280 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 440 [2019-11-19 20:04:08,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 440 [2019-11-19 20:04:08,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 440 states and 651 transitions. [2019-11-19 20:04:08,288 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:04:08,289 INFO L688 BuchiCegarLoop]: Abstraction has 440 states and 651 transitions. [2019-11-19 20:04:08,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states and 651 transitions. [2019-11-19 20:04:08,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 438. [2019-11-19 20:04:08,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 438 states. [2019-11-19 20:04:08,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 648 transitions. [2019-11-19 20:04:08,353 INFO L711 BuchiCegarLoop]: Abstraction has 438 states and 648 transitions. [2019-11-19 20:04:08,353 INFO L591 BuchiCegarLoop]: Abstraction has 438 states and 648 transitions. [2019-11-19 20:04:08,353 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:04:08,354 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 438 states and 648 transitions. [2019-11-19 20:04:08,358 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 296 [2019-11-19 20:04:08,358 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:04:08,359 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:04:08,360 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:04:08,360 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:04:08,361 INFO L794 eck$LassoCheckResult]: Stem: 835#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 716#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 717#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 729#L73 main_#t~ret73 := valid_product_#res;main_~tmp~10 := main_#t~ret73;havoc main_#t~ret73; 794#L978 assume 0 != main_~tmp~10; 795#L955 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 906#L1016-1 [2019-11-19 20:04:08,361 INFO L796 eck$LassoCheckResult]: Loop: 906#L1016-1 assume !false; 847#L368 assume test_~splverifierCounter~0 < 4; 833#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 834#L377 assume !(0 != test_~tmp~6); 916#L377-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 848#L387 assume !(0 != test_~tmp___0~2); 827#L387-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 849#L397 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 813#L405-1 assume !(0 != ~pumpRunning~0); 734#L98 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 735#L182 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 832#L156-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 814#L130-3 assume !(0 == ~pumpRunning~0); 694#L105 havoc __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_#t~ret75, __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 942#L470-5 __utac_acc__Specification3_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret74;havoc __utac_acc__Specification3_spec__1_#t~ret74; 943#L1010 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 906#L1016-1 [2019-11-19 20:04:08,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:08,362 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-19 20:04:08,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:08,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127410749] [2019-11-19 20:04:08,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:08,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:08,666 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:08,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:08,667 INFO L82 PathProgramCache]: Analyzing trace with hash 1220566452, now seen corresponding path program 1 times [2019-11-19 20:04:08,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:08,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86757343] [2019-11-19 20:04:08,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:04:08,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:04:08,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86757343] [2019-11-19 20:04:08,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:04:08,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:04:08,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988953496] [2019-11-19 20:04:08,689 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:04:08,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:04:08,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:04:08,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:04:08,690 INFO L87 Difference]: Start difference. First operand 438 states and 648 transitions. cyclomatic complexity: 213 Second operand 3 states. [2019-11-19 20:04:08,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:04:08,862 INFO L93 Difference]: Finished difference Result 443 states and 622 transitions. [2019-11-19 20:04:08,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:04:08,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 443 states and 622 transitions. [2019-11-19 20:04:08,868 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2019-11-19 20:04:08,873 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 443 states to 443 states and 622 transitions. [2019-11-19 20:04:08,874 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 443 [2019-11-19 20:04:08,875 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 443 [2019-11-19 20:04:08,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 443 states and 622 transitions. [2019-11-19 20:04:08,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:04:08,878 INFO L688 BuchiCegarLoop]: Abstraction has 443 states and 622 transitions. [2019-11-19 20:04:08,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states and 622 transitions. [2019-11-19 20:04:08,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 443. [2019-11-19 20:04:08,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2019-11-19 20:04:08,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 622 transitions. [2019-11-19 20:04:08,898 INFO L711 BuchiCegarLoop]: Abstraction has 443 states and 622 transitions. [2019-11-19 20:04:08,899 INFO L591 BuchiCegarLoop]: Abstraction has 443 states and 622 transitions. [2019-11-19 20:04:08,899 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 20:04:08,899 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 443 states and 622 transitions. [2019-11-19 20:04:08,903 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 307 [2019-11-19 20:04:08,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:04:08,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:04:08,904 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:04:08,905 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:04:08,905 INFO L794 eck$LassoCheckResult]: Stem: 1758#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 1606#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1607#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1602#L73 main_#t~ret73 := valid_product_#res;main_~tmp~10 := main_#t~ret73;havoc main_#t~ret73; 1603#L978 assume 0 != main_~tmp~10; 1716#L955 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1763#L1016-1 [2019-11-19 20:04:08,905 INFO L796 eck$LassoCheckResult]: Loop: 1763#L1016-1 assume !false; 1880#L368 assume test_~splverifierCounter~0 < 4; 1878#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 1876#L377 assume !(0 != test_~tmp~6); 1873#L377-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 1871#L387 assume !(0 != test_~tmp___0~2); 1868#L387-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 1866#L397 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1731#L405-1 assume !(0 != ~pumpRunning~0); 1861#L98 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1859#L182 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1857#L156-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1856#L130-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1855#L510-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1854#L515-3 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 1853#L301-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1851#L301-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1849#L307-3 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 1796#L134-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1583#L105 havoc __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_#t~ret75, __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1888#L470-5 __utac_acc__Specification3_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret74;havoc __utac_acc__Specification3_spec__1_#t~ret74; 1884#L1010 assume 0 != __utac_acc__Specification3_spec__1_~tmp~11; 1763#L1016-1 [2019-11-19 20:04:08,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:08,906 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-19 20:04:08,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:08,907 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166904675] [2019-11-19 20:04:08,907 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:09,214 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:09,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:09,215 INFO L82 PathProgramCache]: Analyzing trace with hash -231328544, now seen corresponding path program 1 times [2019-11-19 20:04:09,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:09,216 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332224977] [2019-11-19 20:04:09,216 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:09,234 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:09,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:09,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1021976582, now seen corresponding path program 1 times [2019-11-19 20:04:09,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:09,235 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131455889] [2019-11-19 20:04:09,236 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:04:09,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:04:09,316 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131455889] [2019-11-19 20:04:09,316 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:04:09,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:04:09,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848534868] [2019-11-19 20:04:09,505 WARN L191 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-11-19 20:04:09,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:04:09,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-19 20:04:09,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-19 20:04:09,612 INFO L87 Difference]: Start difference. First operand 443 states and 622 transitions. cyclomatic complexity: 182 Second operand 5 states. [2019-11-19 20:04:10,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:04:10,022 INFO L93 Difference]: Finished difference Result 1483 states and 2085 transitions. [2019-11-19 20:04:10,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-19 20:04:10,024 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1483 states and 2085 transitions. [2019-11-19 20:04:10,038 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 1085 [2019-11-19 20:04:10,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1483 states to 1483 states and 2085 transitions. [2019-11-19 20:04:10,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1483 [2019-11-19 20:04:10,054 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1483 [2019-11-19 20:04:10,054 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1483 states and 2085 transitions. [2019-11-19 20:04:10,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:04:10,057 INFO L688 BuchiCegarLoop]: Abstraction has 1483 states and 2085 transitions. [2019-11-19 20:04:10,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states and 2085 transitions. [2019-11-19 20:04:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 880. [2019-11-19 20:04:10,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2019-11-19 20:04:10,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1222 transitions. [2019-11-19 20:04:10,089 INFO L711 BuchiCegarLoop]: Abstraction has 880 states and 1222 transitions. [2019-11-19 20:04:10,089 INFO L591 BuchiCegarLoop]: Abstraction has 880 states and 1222 transitions. [2019-11-19 20:04:10,090 INFO L424 BuchiCegarLoop]: ======== Iteration 4============ [2019-11-19 20:04:10,090 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 880 states and 1222 transitions. [2019-11-19 20:04:10,096 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 614 [2019-11-19 20:04:10,097 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:04:10,097 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:04:10,099 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:04:10,100 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:04:10,101 INFO L794 eck$LassoCheckResult]: Stem: 3712#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string7.base, #t~string7.offset := #Ultimate.allocOnStack(13);call #t~string9.base, #t~string9.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(110, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 2 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string11.base, #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(102, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 3 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(80, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(117, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(109, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(112, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(32, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string21.base, #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 1 + #t~string21.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(13);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string31.base, #t~string31.offset, 1);call write~init~int(77, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(101, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(116, #t~string31.base, 3 + #t~string31.offset, 1);call write~init~int(104, #t~string31.base, 4 + #t~string31.offset, 1);call write~init~int(58, #t~string31.base, 5 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 6 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string33.base, #t~string33.offset, 1);call write~init~int(82, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(73, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(84, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 4 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(75, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string37.base, #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 1 + #t~string37.offset, 1);~head~0.base, ~head~0.offset := 0, 0;call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(25);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(30);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(9);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4; 3552#L-1 havoc main_#res;havoc main_#t~ret73, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 3553#L65 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 3548#L73 main_#t~ret73 := valid_product_#res;main_~tmp~10 := main_#t~ret73;havoc main_#t~ret73; 3549#L978 assume 0 != main_~tmp~10; 3661#L955 havoc test_#t~nondet24, test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 3716#L1016-1 [2019-11-19 20:04:10,101 INFO L796 eck$LassoCheckResult]: Loop: 3716#L1016-1 assume !false; 3929#L368 assume test_~splverifierCounter~0 < 4; 3930#L369 test_~tmp~6 := test_#t~nondet24;havoc test_#t~nondet24; 4081#L377 assume !(0 != test_~tmp~6); 4079#L377-1 test_~tmp___0~2 := test_#t~nondet25;havoc test_#t~nondet25; 4078#L387 assume !(0 != test_~tmp___0~2); 4076#L387-1 test_~tmp___2~0 := test_#t~nondet26;havoc test_#t~nondet26; 4074#L397 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 4066#L405-1 assume !(0 != ~pumpRunning~0); 3994#L98 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret3, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 4061#L182 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret2, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 3987#L156-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret1, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 4002#L130-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret22, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 4000#L510-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 3995#L515-3 isHighWaterLevel_#t~ret22 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret22;havoc isHighWaterLevel_#t~ret22; 3992#L301-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 3990#L301-11 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 3988#L307-3 processEnvironment__wrappee__highWaterSensor_#t~ret1 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret1; 3968#L134-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 3949#L105 havoc __utac_acc__Specification3_spec__1_#t~ret74, __utac_acc__Specification3_spec__1_#t~ret75, __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_~tmp~11, __utac_acc__Specification3_spec__1_~tmp___0~3, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~11;havoc __utac_acc__Specification3_spec__1_~tmp___0~3;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 3957#L470-5 __utac_acc__Specification3_spec__1_#t~ret74 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~11 := __utac_acc__Specification3_spec__1_#t~ret74;havoc __utac_acc__Specification3_spec__1_#t~ret74; 3956#L1010 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~11);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 3955#L502 __utac_acc__Specification3_spec__1_#t~ret75 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~3 := __utac_acc__Specification3_spec__1_#t~ret75;havoc __utac_acc__Specification3_spec__1_#t~ret75; 3953#L1016 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~3); 3716#L1016-1 [2019-11-19 20:04:10,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:10,102 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-11-19 20:04:10,102 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:10,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927148740] [2019-11-19 20:04:10,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:10,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:10,424 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:10,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:10,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1031581650, now seen corresponding path program 1 times [2019-11-19 20:04:10,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:10,427 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756628748] [2019-11-19 20:04:10,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:10,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:10,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:10,453 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:10,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:04:10,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1428002440, now seen corresponding path program 1 times [2019-11-19 20:04:10,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:04:10,457 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225852214] [2019-11-19 20:04:10,457 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:04:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:04:10,889 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:04:11,158 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-11-19 20:04:32,453 WARN L191 SmtUtils]: Spent 21.19 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-11-19 20:04:45,268 WARN L191 SmtUtils]: Spent 12.81 s on a formula simplification that was a NOOP. DAG size: 449 [2019-11-19 20:04:45,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:04:45 BoogieIcfgContainer [2019-11-19 20:04:45,364 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:04:45,365 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:04:45,365 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:04:45,365 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:04:45,367 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:04:06" (3/4) ... [2019-11-19 20:04:45,370 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 20:04:45,485 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:04:45,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:04:45,487 INFO L168 Benchmark]: Toolchain (without parser) took 40748.96 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 349.2 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -168.7 MB). Peak memory consumption was 180.4 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:45,488 INFO L168 Benchmark]: CDTParser took 0.20 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. [2019-11-19 20:04:45,489 INFO L168 Benchmark]: CACSL2BoogieTranslator took 709.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:45,489 INFO L168 Benchmark]: Boogie Procedure Inliner took 104.53 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. [2019-11-19 20:04:45,490 INFO L168 Benchmark]: Boogie Preprocessor took 131.44 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:45,495 INFO L168 Benchmark]: RCFGBuilder took 1288.01 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: 94.9 MB). Peak memory consumption was 94.9 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:45,496 INFO L168 Benchmark]: BuchiAutomizer took 38386.85 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 204.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -122.4 MB). Peak memory consumption was 343.0 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:45,496 INFO L168 Benchmark]: Witness Printer took 120.53 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. [2019-11-19 20:04:45,499 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 709.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 957.7 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 104.53 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. * Boogie Preprocessor took 131.44 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: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1288.01 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: 94.9 MB). Peak memory consumption was 94.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 38386.85 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 204.5 MB). Free memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: -122.4 MB). Peak memory consumption was 343.0 MB. Max. memory is 11.5 GB. * Witness Printer took 120.53 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 880 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 38.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 37.1s. Construction of modules took 0.4s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 605 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 880 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 952 SDtfs, 1549 SDslu, 1565 SDs, 0 SdLazy, 212 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 367]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=4430} State at position 1 is {NULL=0, NULL=4430, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6941cca0=0, NULL=-2, NULL=0, NULL=-19, methaneLevelCritical=0, retValue_acc=0, NULL=0, NULL=-17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13182d45=0, tmp=0, NULL=4429, NULL=0, tmp___1=0, NULL=-20, cleanupTimeShifts=4, tmp=1, NULL=-5, waterLevel=1, NULL=-9, NULL=-4, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d706c61=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@422c66a7=55, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@145d4c16=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20f166aa=0, \result=1, NULL=-6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ff8c66c=0, tmp=1, retValue_acc=1, tmp___0=0, NULL=-16, NULL=-7, tmp=0, head=0, tmp=0, tmp=0, NULL=0, NULL=0, NULL=-22, NULL=-23, NULL=0, NULL=-8, NULL=-3, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26fadd59=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9bbe06=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45cb9ef6=0, NULL=0, tmp=0, NULL=-15, tmp___0=1, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=-11, \result=1, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f8ea493=0, NULL=-14, NULL=0, NULL=-12, NULL=0, NULL=-21, NULL=0, NULL=-13, retValue_acc=1, tmp___2=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27777d20=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, \result=0, NULL=-18, tmp___1=0, NULL=-24, NULL=0, NULL=0, NULL=-10} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 Loop: [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND FALSE !(\read(tmp)) [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND TRUE \read(tmp___2) [L349] systemActive = 1 [L98] COND FALSE !(\read(pumpRunning)) [L105] COND TRUE \read(systemActive) [L179] int tmp ; [L182] COND FALSE !(\read(pumpRunning)) [L153] int tmp ; [L156] COND FALSE !(\read(pumpRunning)) [L127] int tmp ; [L130] COND TRUE ! pumpRunning [L293] int retValue_acc ; [L294] int tmp ; [L295] int tmp___0 ; [L507] int retValue_acc ; [L510] COND TRUE waterLevel < 2 [L511] retValue_acc = 1 [L512] return (retValue_acc); [L299] tmp = isHighWaterSensorDry() [L301] COND TRUE \read(tmp) [L302] tmp___0 = 0 [L306] retValue_acc = tmp___0 [L307] return (retValue_acc); [L132] tmp = isHighWaterLevel() [L134] COND FALSE !(\read(tmp)) [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); [L1014] tmp___0 = getWaterLevel() [L1016] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...