./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 678e0110 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_spec2_product29.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 66834ce7ab851f30f4141210f1887a35b259a922 ..................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-678e011 [2019-11-19 22:28:01,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 22:28:01,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 22:28:01,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 22:28:01,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 22:28:01,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 22:28:01,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 22:28:01,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 22:28:01,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 22:28:01,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 22:28:01,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 22:28:01,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 22:28:01,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 22:28:01,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 22:28:01,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 22:28:01,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 22:28:01,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 22:28:01,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 22:28:01,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 22:28:01,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 22:28:01,276 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 22:28:01,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 22:28:01,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 22:28:01,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 22:28:01,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 22:28:01,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 22:28:01,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 22:28:01,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 22:28:01,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 22:28:01,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 22:28:01,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 22:28:01,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 22:28:01,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 22:28:01,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 22:28:01,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 22:28:01,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 22:28:01,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 22:28:01,294 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 22:28:01,294 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 22:28:01,295 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 22:28:01,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 22:28:01,297 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 22:28:01,315 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 22:28:01,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 22:28:01,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 22:28:01,321 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 22:28:01,322 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 22:28:01,322 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 22:28:01,322 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 22:28:01,322 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 22:28:01,323 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 22:28:01,323 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 22:28:01,324 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 22:28:01,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 22:28:01,325 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 22:28:01,326 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 22:28:01,326 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 22:28:01,326 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 22:28:01,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 22:28:01,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 22:28:01,327 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 22:28:01,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 22:28:01,328 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 22:28:01,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 22:28:01,328 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 22:28:01,329 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 22:28:01,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 22:28:01,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 22:28:01,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 22:28:01,330 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 22:28:01,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 22:28:01,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 22:28:01,331 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 22:28:01,333 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 22:28:01,334 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 -> 66834ce7ab851f30f4141210f1887a35b259a922 [2019-11-19 22:28:01,664 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 22:28:01,687 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 22:28:01,691 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 22:28:01,693 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 22:28:01,693 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 22:28:01,694 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c [2019-11-19 22:28:01,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4397d3566/ca6d3b2d4a014c0da8be2ef5569acaa3/FLAGf29ddcb88 [2019-11-19 22:28:02,362 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 22:28:02,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product29.cil.c [2019-11-19 22:28:02,377 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4397d3566/ca6d3b2d4a014c0da8be2ef5569acaa3/FLAGf29ddcb88 [2019-11-19 22:28:02,606 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4397d3566/ca6d3b2d4a014c0da8be2ef5569acaa3 [2019-11-19 22:28:02,609 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 22:28:02,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 22:28:02,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 22:28:02,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 22:28:02,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 22:28:02,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:28:02" (1/1) ... [2019-11-19 22:28:02,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a124976 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:02, skipping insertion in model container [2019-11-19 22:28:02,620 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:28:02" (1/1) ... [2019-11-19 22:28:02,628 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 22:28:02,686 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 22:28:03,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:28:03,121 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 22:28:03,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 22:28:03,290 INFO L192 MainTranslator]: Completed translation [2019-11-19 22:28:03,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03 WrapperNode [2019-11-19 22:28:03,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 22:28:03,292 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 22:28:03,292 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 22:28:03,292 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 22:28:03,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (1/1) ... [2019-11-19 22:28:03,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (1/1) ... [2019-11-19 22:28:03,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 22:28:03,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 22:28:03,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 22:28:03,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 22:28:03,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (1/1) ... [2019-11-19 22:28:03,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (1/1) ... [2019-11-19 22:28:03,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (1/1) ... [2019-11-19 22:28:03,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (1/1) ... [2019-11-19 22:28:03,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (1/1) ... [2019-11-19 22:28:03,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (1/1) ... [2019-11-19 22:28:03,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (1/1) ... [2019-11-19 22:28:03,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 22:28:03,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 22:28:03,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 22:28:03,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 22:28:03,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (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 22:28:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 22:28:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 22:28:03,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 22:28:03,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 22:28:04,370 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 22:28:04,370 INFO L285 CfgBuilder]: Removed 158 assume(true) statements. [2019-11-19 22:28:04,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:04 BoogieIcfgContainer [2019-11-19 22:28:04,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 22:28:04,372 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 22:28:04,372 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 22:28:04,377 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 22:28:04,377 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:28:04,378 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 10:28:02" (1/3) ... [2019-11-19 22:28:04,379 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9cf620a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:28:04, skipping insertion in model container [2019-11-19 22:28:04,379 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:28:04,379 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:28:03" (2/3) ... [2019-11-19 22:28:04,380 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9cf620a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 10:28:04, skipping insertion in model container [2019-11-19 22:28:04,380 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 22:28:04,380 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:04" (3/3) ... [2019-11-19 22:28:04,382 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product29.cil.c [2019-11-19 22:28:04,432 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 22:28:04,433 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 22:28:04,433 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 22:28:04,433 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 22:28:04,434 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 22:28:04,434 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 22:28:04,434 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 22:28:04,434 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 22:28:04,460 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states. [2019-11-19 22:28:04,488 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-19 22:28:04,488 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:04,488 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:04,497 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:04,498 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:04,498 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 22:28:04,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states. [2019-11-19 22:28:04,505 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2019-11-19 22:28:04,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:04,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:04,507 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:04,507 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:04,513 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);~head~0.base, ~head~0.offset := 0, 0;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~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);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);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25); 7#L-1true havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 82#L484true 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; 102#L492true main_#t~ret25 := valid_product_#res;main_~tmp~5 := main_#t~ret25;havoc main_#t~ret25; 3#L409true assume 0 != main_~tmp~5; 19#L381true ~methAndRunningLastTime~0 := 0; 86#L429true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, 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; 90#L440-1true [2019-11-19 22:28:04,514 INFO L796 eck$LassoCheckResult]: Loop: 90#L440-1true assume !false; 70#L259true assume test_~splverifierCounter~0 < 4; 25#L260true test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 32#L268true assume !(0 != test_~tmp~4); 30#L268-1true test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 80#L278true assume !(0 != test_~tmp___0~1); 77#L278-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 8#L288true assume 0 != test_~tmp___2~0; 100#L294-2true assume !(0 != ~pumpRunning~0); 108#L57true assume !(0 != ~systemActive~0); 45#L64true havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; 10#L541-1true __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 84#L440true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 90#L440-1true [2019-11-19 22:28:04,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:04,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-19 22:28:04,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:04,533 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489390602] [2019-11-19 22:28:04,534 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:04,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:04,930 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:04,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:04,931 INFO L82 PathProgramCache]: Analyzing trace with hash 3984522, now seen corresponding path program 1 times [2019-11-19 22:28:04,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:04,932 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125639005] [2019-11-19 22:28:04,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:04,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:04,948 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:04,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:04,951 INFO L82 PathProgramCache]: Analyzing trace with hash 837281028, now seen corresponding path program 1 times [2019-11-19 22:28:04,951 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:04,951 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905707894] [2019-11-19 22:28:04,951 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 22:28:05,148 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 22:28:05,151 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905707894] [2019-11-19 22:28:05,152 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 22:28:05,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 22:28:05,153 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50348969] [2019-11-19 22:28:05,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 22:28:05,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 22:28:05,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 22:28:05,282 INFO L87 Difference]: Start difference. First operand 106 states. Second operand 6 states. [2019-11-19 22:28:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 22:28:05,436 INFO L93 Difference]: Finished difference Result 106 states and 149 transitions. [2019-11-19 22:28:05,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-19 22:28:05,439 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 149 transitions. [2019-11-19 22:28:05,452 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2019-11-19 22:28:05,458 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 99 states and 142 transitions. [2019-11-19 22:28:05,459 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 99 [2019-11-19 22:28:05,460 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 99 [2019-11-19 22:28:05,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 99 states and 142 transitions. [2019-11-19 22:28:05,462 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 22:28:05,462 INFO L688 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2019-11-19 22:28:05,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states and 142 transitions. [2019-11-19 22:28:05,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2019-11-19 22:28:05,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2019-11-19 22:28:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 142 transitions. [2019-11-19 22:28:05,513 INFO L711 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2019-11-19 22:28:05,513 INFO L591 BuchiCegarLoop]: Abstraction has 99 states and 142 transitions. [2019-11-19 22:28:05,515 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 22:28:05,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 99 states and 142 transitions. [2019-11-19 22:28:05,521 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2019-11-19 22:28:05,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 22:28:05,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 22:28:05,523 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:05,523 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 22:28:05,524 INFO L794 eck$LassoCheckResult]: Stem: 323#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);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(110, #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(4);call write~init~int(79, #t~string9.base, #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 1 + #t~string9.offset, 1);call write~init~int(102, #t~string9.base, 2 + #t~string9.offset, 1);call write~init~int(0, #t~string9.base, 3 + #t~string9.offset, 1);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(80, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(117, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(109, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(112, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(32, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(13);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(77, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(101, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(116, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(104, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string34.base, #t~string34.offset, 1);call write~init~int(82, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(73, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(84, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 4 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(75, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 1 + #t~string38.offset, 1);~head~0.base, ~head~0.offset := 0, 0;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~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);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);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25); 236#L-1 havoc main_#res;havoc main_#t~ret25, main_~retValue_acc~3, main_~tmp~5;havoc main_~retValue_acc~3;havoc main_~tmp~5; 237#L484 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; 325#L492 main_#t~ret25 := valid_product_#res;main_~tmp~5 := main_#t~ret25;havoc main_#t~ret25; 230#L409 assume 0 != main_~tmp~5; 231#L381 ~methAndRunningLastTime~0 := 0; 261#L429 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, 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; 284#L440-1 [2019-11-19 22:28:05,524 INFO L796 eck$LassoCheckResult]: Loop: 284#L440-1 assume !false; 320#L259 assume test_~splverifierCounter~0 < 4; 272#L260 test_~tmp~4 := test_#t~nondet21;havoc test_#t~nondet21; 273#L268 assume !(0 != test_~tmp~4); 250#L268-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 279#L278 assume !(0 != test_~tmp___0~1); 322#L278-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 238#L288 assume 0 != test_~tmp___2~0; 240#L294-2 assume !(0 != ~pumpRunning~0); 314#L57 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret1, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 328#L115 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret0, processEnvironment__wrappee__methaneQuery_~tmp~0;havoc processEnvironment__wrappee__methaneQuery_~tmp~0; 286#L89-1 assume !(0 != ~pumpRunning~0); 287#L64 havoc __utac_acc__Specification2_spec__2_#t~ret26, __utac_acc__Specification2_spec__2_#t~ret27, __utac_acc__Specification2_spec__2_~tmp~6, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~6;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;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; 243#L541-1 __utac_acc__Specification2_spec__2_#t~ret26 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~6 := __utac_acc__Specification2_spec__2_#t~ret26;havoc __utac_acc__Specification2_spec__2_#t~ret26; 244#L440 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~6);~methAndRunningLastTime~0 := 0; 284#L440-1 [2019-11-19 22:28:05,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:05,525 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-19 22:28:05,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:05,526 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902595753] [2019-11-19 22:28:05,526 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:05,687 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:05,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:05,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1679746780, now seen corresponding path program 1 times [2019-11-19 22:28:05,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:05,690 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378688073] [2019-11-19 22:28:05,691 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:05,706 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 22:28:05,707 INFO L82 PathProgramCache]: Analyzing trace with hash -681195306, now seen corresponding path program 1 times [2019-11-19 22:28:05,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 22:28:05,709 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388300186] [2019-11-19 22:28:05,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 22:28:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 22:28:05,843 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 22:28:33,822 WARN L191 SmtUtils]: Spent 27.89 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-19 22:28:47,345 WARN L191 SmtUtils]: Spent 13.51 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-19 22:28:47,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 10:28:47 BoogieIcfgContainer [2019-11-19 22:28:47,418 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 22:28:47,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 22:28:47,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 22:28:47,419 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 22:28:47,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:28:04" (3/4) ... [2019-11-19 22:28:47,423 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 22:28:47,486 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 22:28:47,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 22:28:47,488 INFO L168 Benchmark]: Toolchain (without parser) took 44877.85 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 302.0 MB). Free memory was 956.3 MB in the beginning and 1.2 GB in the end (delta: -237.6 MB). Peak memory consumption was 64.4 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:47,489 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 22:28:47,490 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:47,491 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.06 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. [2019-11-19 22:28:47,491 INFO L168 Benchmark]: Boogie Preprocessor took 67.38 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 22:28:47,492 INFO L168 Benchmark]: RCFGBuilder took 926.78 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: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:47,493 INFO L168 Benchmark]: BuchiAutomizer took 43045.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -137.7 MB). Peak memory consumption was 376.5 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:47,494 INFO L168 Benchmark]: Witness Printer took 68.20 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: 3.0 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-11-19 22:28:47,497 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 680.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -166.6 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.06 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 67.38 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 926.78 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: 57.2 MB). Peak memory consumption was 57.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 43045.71 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 161.0 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -137.7 MB). Peak memory consumption was 376.5 MB. Max. memory is 11.5 GB. * Witness Printer took 68.20 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: 3.0 MB). Peak memory consumption was 3.0 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 99 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 42.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 42.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 99 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 144 SDtfs, 439 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 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: 258]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5066} State at position 1 is {NULL=5091, NULL=0, NULL=0, NULL=5066, retValue_acc=0, NULL=5067, NULL=5070, NULL=0, NULL=0, NULL=5088, NULL=5090, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@271a14a8=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=5073, NULL=0, tmp___1=0, NULL=5086, cleanupTimeShifts=4, NULL=5081, NULL=5085, NULL=0, systemActive=1, waterLevel=1, NULL=5075, NULL=0, NULL=0, NULL=0, NULL=5080, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1282f2a7=0, NULL=5083, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c48a2a4=0, NULL=5068, \result=0, NULL=0, NULL=0, NULL=5076, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dad839f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d4d0971=62, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ed2c576=0, retValue_acc=1, NULL=5077, NULL=5069, NULL=0, NULL=5078, tmp___2=62, NULL=5087, tmp___0=0, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, \result=0, NULL=5072, NULL=5084, NULL=5071, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b579798=0, head=0, tmp=0, NULL=5074, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@110e747e=0, NULL=5089, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57e183f=0, NULL=0, NULL=0, NULL=5079, NULL=5082, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L49] int pumpRunning = 0; [L50] int systemActive = 1; [L322] int cleanupTimeShifts = 4; [L423] int methAndRunningLastTime ; [L498] int waterLevel = 1; [L499] int methaneLevelCritical = 0; [L756] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L488] int retValue_acc ; [L491] retValue_acc = 1 [L492] return (retValue_acc); [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L428] methAndRunningLastTime = 0 [L249] int splverifierCounter ; [L250] int tmp ; [L251] int tmp___0 ; [L252] int tmp___1 ; [L253] int tmp___2 ; [L256] splverifierCounter = 0 Loop: [L258] COND TRUE 1 [L260] COND TRUE splverifierCounter < 4 [L266] tmp = __VERIFIER_nondet_int() [L268] COND FALSE !(\read(tmp)) [L276] tmp___0 = __VERIFIER_nondet_int() [L278] COND FALSE !(\read(tmp___0)) [L286] tmp___2 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp___2) [L57] COND FALSE !(\read(pumpRunning)) [L64] COND TRUE \read(systemActive) [L112] int tmp ; [L115] COND FALSE !(\read(pumpRunning)) [L86] int tmp ; [L89] COND FALSE !(\read(pumpRunning)) [L433] int tmp ; [L434] int tmp___0 ; [L537] int retValue_acc ; [L540] retValue_acc = methaneLevelCritical [L541] return (retValue_acc); [L438] tmp = isMethaneLevelCritical() [L440] COND FALSE !(\read(tmp)) [L456] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...