./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product33.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 7aed16b7a73618bd36d72dc3243e4d7bd764fb49 ..................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 21:02:31,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 21:02:31,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 21:02:31,269 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 21:02:31,270 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 21:02:31,271 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 21:02:31,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 21:02:31,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 21:02:31,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 21:02:31,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 21:02:31,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 21:02:31,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 21:02:31,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 21:02:31,281 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 21:02:31,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 21:02:31,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 21:02:31,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 21:02:31,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 21:02:31,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 21:02:31,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 21:02:31,290 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 21:02:31,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 21:02:31,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 21:02:31,293 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 21:02:31,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 21:02:31,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 21:02:31,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 21:02:31,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 21:02:31,298 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 21:02:31,299 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 21:02:31,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 21:02:31,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 21:02:31,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 21:02:31,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 21:02:31,303 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 21:02:31,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 21:02:31,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 21:02:31,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 21:02:31,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 21:02:31,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 21:02:31,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 21:02:31,307 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 21:02:31,323 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 21:02:31,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 21:02:31,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 21:02:31,325 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 21:02:31,325 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 21:02:31,325 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 21:02:31,326 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 21:02:31,326 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 21:02:31,326 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 21:02:31,326 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 21:02:31,327 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 21:02:31,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 21:02:31,327 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 21:02:31,328 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 21:02:31,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 21:02:31,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 21:02:31,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 21:02:31,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 21:02:31,330 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 21:02:31,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 21:02:31,330 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 21:02:31,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 21:02:31,331 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 21:02:31,331 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 21:02:31,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 21:02:31,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 21:02:31,332 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 21:02:31,332 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 21:02:31,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 21:02:31,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 21:02:31,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 21:02:31,333 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 21:02:31,335 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 21:02:31,335 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 -> 7aed16b7a73618bd36d72dc3243e4d7bd764fb49 [2019-11-28 21:02:31,628 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 21:02:31,640 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 21:02:31,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 21:02:31,645 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 21:02:31,645 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 21:02:31,646 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2019-11-28 21:02:31,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb0b7266/963f3d229f834b85b2efd0123b599615/FLAGc2227a847 [2019-11-28 21:02:32,235 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 21:02:32,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product33.cil.c [2019-11-28 21:02:32,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb0b7266/963f3d229f834b85b2efd0123b599615/FLAGc2227a847 [2019-11-28 21:02:32,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9cb0b7266/963f3d229f834b85b2efd0123b599615 [2019-11-28 21:02:32,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 21:02:32,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 21:02:32,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 21:02:32,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 21:02:32,588 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 21:02:32,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:02:32" (1/1) ... [2019-11-28 21:02:32,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188eab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:32, skipping insertion in model container [2019-11-28 21:02:32,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 09:02:32" (1/1) ... [2019-11-28 21:02:32,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 21:02:32,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 21:02:33,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:02:33,082 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 21:02:33,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 21:02:33,196 INFO L208 MainTranslator]: Completed translation [2019-11-28 21:02:33,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33 WrapperNode [2019-11-28 21:02:33,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 21:02:33,200 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 21:02:33,200 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 21:02:33,200 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 21:02:33,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (1/1) ... [2019-11-28 21:02:33,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (1/1) ... [2019-11-28 21:02:33,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 21:02:33,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 21:02:33,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 21:02:33,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 21:02:33,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (1/1) ... [2019-11-28 21:02:33,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (1/1) ... [2019-11-28 21:02:33,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (1/1) ... [2019-11-28 21:02:33,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (1/1) ... [2019-11-28 21:02:33,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (1/1) ... [2019-11-28 21:02:33,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (1/1) ... [2019-11-28 21:02:33,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (1/1) ... [2019-11-28 21:02:33,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 21:02:33,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 21:02:33,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 21:02:33,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 21:02:33,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 21:02:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 21:02:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 21:02:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 21:02:33,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 21:02:34,138 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 21:02:34,139 INFO L287 CfgBuilder]: Removed 98 assume(true) statements. [2019-11-28 21:02:34,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:34 BoogieIcfgContainer [2019-11-28 21:02:34,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 21:02:34,142 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 21:02:34,142 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 21:02:34,145 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 21:02:34,146 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:34,146 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 09:02:32" (1/3) ... [2019-11-28 21:02:34,148 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e9b8964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:02:34, skipping insertion in model container [2019-11-28 21:02:34,148 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:34,148 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 09:02:33" (2/3) ... [2019-11-28 21:02:34,149 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6e9b8964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 09:02:34, skipping insertion in model container [2019-11-28 21:02:34,149 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 21:02:34,149 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:34" (3/3) ... [2019-11-28 21:02:34,151 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product33.cil.c [2019-11-28 21:02:34,190 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 21:02:34,191 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 21:02:34,191 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 21:02:34,191 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 21:02:34,191 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 21:02:34,191 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 21:02:34,192 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 21:02:34,192 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 21:02:34,206 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states. [2019-11-28 21:02:34,231 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:02:34,231 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:34,231 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:34,238 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:34,238 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:34,238 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 21:02:34,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 79 states. [2019-11-28 21:02:34,244 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2019-11-28 21:02:34,244 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:34,245 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:34,245 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:34,246 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:34,252 INFO L794 eck$LassoCheckResult]: Stem: 38#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);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~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 14#L-1true havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 19#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; 11#L73true main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 15#L266true assume 0 != main_~tmp~0; 67#L240true ~methAndRunningLastTime~0 := 0; 43#L882true havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 45#L893-1true [2019-11-28 21:02:34,252 INFO L796 eck$LassoCheckResult]: Loop: 45#L893-1true assume !false; 77#L456true assume test_~splverifierCounter~0 < 4; 16#L457true test_~tmp~3 := test_#t~nondet31;havoc test_#t~nondet31; 46#L465true assume !(0 != test_~tmp~3); 48#L465-1true test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 24#L475true assume !(0 != test_~tmp___0~1); 27#L475-1true test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 80#L485true assume 0 != test_~tmp___2~0; 37#L491-2true assume !(0 != ~pumpRunning~0); 44#L300true assume !(0 != ~systemActive~0); 18#L307true havoc __utac_acc__Specification2_spec__2_#t~ret70, __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 39#L128true __utac_acc__Specification2_spec__2_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret70;havoc __utac_acc__Specification2_spec__2_#t~ret70; 41#L893true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 45#L893-1true [2019-11-28 21:02:34,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:34,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2019-11-28 21:02:34,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:34,269 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766688350] [2019-11-28 21:02:34,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:34,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:34,668 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:34,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:34,670 INFO L82 PathProgramCache]: Analyzing trace with hash 2753162, now seen corresponding path program 1 times [2019-11-28 21:02:34,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:34,672 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158080305] [2019-11-28 21:02:34,672 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:34,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:34,693 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:34,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:34,695 INFO L82 PathProgramCache]: Analyzing trace with hash 836049668, now seen corresponding path program 1 times [2019-11-28 21:02:34,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:34,696 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939468597] [2019-11-28 21:02:34,696 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:02:34,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:02:34,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939468597] [2019-11-28 21:02:34,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:02:34,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-28 21:02:34,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436625276] [2019-11-28 21:02:34,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:02:34,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 21:02:34,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-28 21:02:34,987 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 6 states. [2019-11-28 21:02:35,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:02:35,143 INFO L93 Difference]: Finished difference Result 79 states and 110 transitions. [2019-11-28 21:02:35,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 21:02:35,146 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 110 transitions. [2019-11-28 21:02:35,155 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 21:02:35,164 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 72 states and 103 transitions. [2019-11-28 21:02:35,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 72 [2019-11-28 21:02:35,168 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 72 [2019-11-28 21:02:35,169 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 103 transitions. [2019-11-28 21:02:35,170 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:02:35,170 INFO L688 BuchiCegarLoop]: Abstraction has 72 states and 103 transitions. [2019-11-28 21:02:35,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states and 103 transitions. [2019-11-28 21:02:35,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2019-11-28 21:02:35,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2019-11-28 21:02:35,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 103 transitions. [2019-11-28 21:02:35,214 INFO L711 BuchiCegarLoop]: Abstraction has 72 states and 103 transitions. [2019-11-28 21:02:35,215 INFO L591 BuchiCegarLoop]: Abstraction has 72 states and 103 transitions. [2019-11-28 21:02:35,215 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 21:02:35,215 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 72 states and 103 transitions. [2019-11-28 21:02:35,220 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2019-11-28 21:02:35,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:35,221 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:35,222 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:35,222 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:35,223 INFO L794 eck$LassoCheckResult]: Stem: 223#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);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~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 196#L-1 havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 197#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; 194#L73 main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 195#L266 assume 0 != main_~tmp~0; 198#L240 ~methAndRunningLastTime~0 := 0; 228#L882 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 224#L893-1 [2019-11-28 21:02:35,223 INFO L796 eck$LassoCheckResult]: Loop: 224#L893-1 assume !false; 229#L456 assume test_~splverifierCounter~0 < 4; 199#L457 test_~tmp~3 := test_#t~nondet31;havoc test_#t~nondet31; 200#L465 assume !(0 != test_~tmp~3); 216#L465-1 test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 206#L475 assume !(0 != test_~tmp___0~1); 208#L475-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 210#L485 assume 0 != test_~tmp___2~0; 221#L491-2 assume !(0 != ~pumpRunning~0); 179#L300 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 182#L332 assume !(0 == ~pumpRunning~0); 183#L307 havoc __utac_acc__Specification2_spec__2_#t~ret70, __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 202#L128 __utac_acc__Specification2_spec__2_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret70;havoc __utac_acc__Specification2_spec__2_#t~ret70; 222#L893 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 224#L893-1 [2019-11-28 21:02:35,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:35,224 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2019-11-28 21:02:35,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:35,225 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422014428] [2019-11-28 21:02:35,226 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:35,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:35,402 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:35,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:35,405 INFO L82 PathProgramCache]: Analyzing trace with hash 53737313, now seen corresponding path program 1 times [2019-11-28 21:02:35,405 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:35,406 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834487520] [2019-11-28 21:02:35,406 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 21:02:35,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 21:02:35,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834487520] [2019-11-28 21:02:35,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 21:02:35,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 21:02:35,424 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470445867] [2019-11-28 21:02:35,425 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-28 21:02:35,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 21:02:35,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 21:02:35,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 21:02:35,426 INFO L87 Difference]: Start difference. First operand 72 states and 103 transitions. cyclomatic complexity: 33 Second operand 3 states. [2019-11-28 21:02:35,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 21:02:35,497 INFO L93 Difference]: Finished difference Result 116 states and 160 transitions. [2019-11-28 21:02:35,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 21:02:35,499 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 116 states and 160 transitions. [2019-11-28 21:02:35,501 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2019-11-28 21:02:35,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 116 states to 116 states and 160 transitions. [2019-11-28 21:02:35,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2019-11-28 21:02:35,504 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2019-11-28 21:02:35,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 160 transitions. [2019-11-28 21:02:35,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 21:02:35,505 INFO L688 BuchiCegarLoop]: Abstraction has 116 states and 160 transitions. [2019-11-28 21:02:35,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 160 transitions. [2019-11-28 21:02:35,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2019-11-28 21:02:35,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2019-11-28 21:02:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 160 transitions. [2019-11-28 21:02:35,514 INFO L711 BuchiCegarLoop]: Abstraction has 116 states and 160 transitions. [2019-11-28 21:02:35,514 INFO L591 BuchiCegarLoop]: Abstraction has 116 states and 160 transitions. [2019-11-28 21:02:35,514 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-28 21:02:35,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 160 transitions. [2019-11-28 21:02:35,516 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2019-11-28 21:02:35,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 21:02:35,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 21:02:35,517 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 21:02:35,517 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] [2019-11-28 21:02:35,518 INFO L794 eck$LassoCheckResult]: Stem: 424#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string2.base, #t~string2.offset := #Ultimate.allocOnStack(13);call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string4.base, #t~string4.offset, 1);call write~init~int(77, #t~string4.base, 1 + #t~string4.offset, 1);call write~init~int(101, #t~string4.base, 2 + #t~string4.offset, 1);call write~init~int(116, #t~string4.base, 3 + #t~string4.offset, 1);call write~init~int(104, #t~string4.base, 4 + #t~string4.offset, 1);call write~init~int(58, #t~string4.base, 5 + #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 6 + #t~string4.offset, 1);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string6.base, #t~string6.offset, 1);call write~init~int(82, #t~string6.base, 1 + #t~string6.offset, 1);call write~init~int(73, #t~string6.base, 2 + #t~string6.offset, 1);call write~init~int(84, #t~string6.base, 3 + #t~string6.offset, 1);call write~init~int(0, #t~string6.base, 4 + #t~string6.offset, 1);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string8.base, #t~string8.offset, 1);call write~init~int(75, #t~string8.base, 1 + #t~string8.offset, 1);call write~init~int(0, #t~string8.base, 2 + #t~string8.offset, 1);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string10.base, #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 1 + #t~string10.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);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~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(25);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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0; 390#L-1 havoc main_#res;havoc main_#t~ret11, main_~retValue_acc~5, main_~tmp~0;havoc main_~retValue_acc~5;havoc main_~tmp~0; 391#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; 385#L73 main_#t~ret11 := valid_product_#res;main_~tmp~0 := main_#t~ret11;havoc main_#t~ret11; 386#L266 assume 0 != main_~tmp~0; 392#L240 ~methAndRunningLastTime~0 := 0; 429#L882 havoc test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_#t~nondet34, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 425#L893-1 [2019-11-28 21:02:35,518 INFO L796 eck$LassoCheckResult]: Loop: 425#L893-1 assume !false; 430#L456 assume test_~splverifierCounter~0 < 4; 393#L457 test_~tmp~3 := test_#t~nondet31;havoc test_#t~nondet31; 394#L465 assume !(0 != test_~tmp~3); 415#L465-1 test_~tmp___0~1 := test_#t~nondet32;havoc test_#t~nondet32; 400#L475 assume !(0 != test_~tmp___0~1); 402#L475-1 test_~tmp___2~0 := test_#t~nondet33;havoc test_#t~nondet33; 407#L485 assume 0 != test_~tmp___2~0; 421#L491-2 assume !(0 != ~pumpRunning~0); 422#L300 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 379#L332 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 380#L168 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 382#L173 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 447#L434 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 451#L434-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 433#L440 processEnvironment_#t~ret12 := isHighWaterLevel_#res;processEnvironment_~tmp~1 := processEnvironment_#t~ret12;havoc processEnvironment_#t~ret12; 405#L336 assume !(0 != processEnvironment_~tmp~1); 396#L307 havoc __utac_acc__Specification2_spec__2_#t~ret70, __utac_acc__Specification2_spec__2_#t~ret71, __utac_acc__Specification2_spec__2_~tmp~7, __utac_acc__Specification2_spec__2_~tmp___0~2;havoc __utac_acc__Specification2_spec__2_~tmp~7;havoc __utac_acc__Specification2_spec__2_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 397#L128 __utac_acc__Specification2_spec__2_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~7 := __utac_acc__Specification2_spec__2_#t~ret70;havoc __utac_acc__Specification2_spec__2_#t~ret70; 423#L893 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~7);~methAndRunningLastTime~0 := 0; 425#L893-1 [2019-11-28 21:02:35,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:35,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2019-11-28 21:02:35,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:35,520 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010704695] [2019-11-28 21:02:35,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:35,589 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:35,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:35,590 INFO L82 PathProgramCache]: Analyzing trace with hash 851049645, now seen corresponding path program 1 times [2019-11-28 21:02:35,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:35,591 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934046606] [2019-11-28 21:02:35,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:35,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:35,605 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:35,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 21:02:35,606 INFO L82 PathProgramCache]: Analyzing trace with hash 2016626419, now seen corresponding path program 1 times [2019-11-28 21:02:35,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 21:02:35,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120428008] [2019-11-28 21:02:35,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 21:02:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 21:02:35,718 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 21:02:35,862 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-11-28 21:02:57,792 WARN L192 SmtUtils]: Spent 21.85 s on a formula simplification. DAG size of input: 456 DAG size of output: 404 [2019-11-28 21:03:09,834 WARN L192 SmtUtils]: Spent 12.02 s on a formula simplification that was a NOOP. DAG size: 402 [2019-11-28 21:03:09,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 09:03:09 BoogieIcfgContainer [2019-11-28 21:03:09,910 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 21:03:09,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 21:03:09,911 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 21:03:09,911 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 21:03:09,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 09:02:34" (3/4) ... [2019-11-28 21:03:09,915 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 21:03:09,974 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 21:03:09,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 21:03:09,976 INFO L168 Benchmark]: Toolchain (without parser) took 37393.43 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 314.6 MB). Free memory was 956.3 MB in the beginning and 1.2 GB in the end (delta: -215.7 MB). Peak memory consumption was 98.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:09,977 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. [2019-11-28 21:03:09,982 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:09,983 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:09,983 INFO L168 Benchmark]: Boogie Preprocessor took 45.10 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 21:03:09,984 INFO L168 Benchmark]: RCFGBuilder took 820.06 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: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:09,985 INFO L168 Benchmark]: BuchiAutomizer took 35768.51 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -110.9 MB). Peak memory consumption was 375.9 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:09,986 INFO L168 Benchmark]: Witness Printer took 64.18 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: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2019-11-28 21:03:09,992 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 615.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -178.4 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 75.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.10 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 820.06 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: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 35768.51 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 163.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -110.9 MB). Peak memory consumption was 375.9 MB. Max. memory is 11.5 GB. * Witness Printer took 64.18 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: 8.8 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 116 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 35.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 35.2s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 116 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 216 SDtfs, 407 SDslu, 56 SDs, 0 SdLazy, 29 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 455]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=909} State at position 1 is {NULL=913, NULL=0, NULL=0, NULL=0, NULL=8914, NULL=8915, NULL=0, NULL=909, retValue_acc=0, NULL=8918, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bcb7446=0, NULL=8913, NULL=927, methaneLevelCritical=0, NULL=916, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4be786c4=0, tmp___0=0, tmp=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=918, tmp___1=0, NULL=920, NULL=922, NULL=0, NULL=0, NULL=0, NULL=0, cleanupTimeShifts=4, NULL=8916, NULL=917, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16af179d=0, NULL=919, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59e40b53=59, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=926, \result=0, retValue_acc=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=923, \result=1, head=0, pumpRunning=0, tmp=1, NULL=921, \result=0, NULL=912, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@583dec3c=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@de883f5=0, NULL=0, NULL=8917, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fb7f145=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16bb066=0, NULL=925, tmp=1, retValue_acc=1, tmp___2=59, tmp___0=0, tmp___0=0, splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6bcfe72e=0, methAndRunningLastTime=0, \result=0, NULL=911, tmp=0, head=0, NULL=914, NULL=910, NULL=928, NULL=924, NULL=915, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L85] int waterLevel = 1; [L86] int methaneLevelCritical = 0; [L179] int cleanupTimeShifts = 4; [L292] int pumpRunning = 0; [L293] int systemActive = 1; [L679] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L876] int methAndRunningLastTime ; [L257] int retValue_acc ; [L258] int tmp ; [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L264] tmp = valid_product() [L266] COND TRUE \read(tmp) [L881] methAndRunningLastTime = 0 [L446] int splverifierCounter ; [L447] int tmp ; [L448] int tmp___0 ; [L449] int tmp___1 ; [L450] int tmp___2 ; [L453] splverifierCounter = 0 Loop: [L455] COND TRUE 1 [L457] COND TRUE splverifierCounter < 4 [L463] tmp = __VERIFIER_nondet_int() [L465] COND FALSE !(\read(tmp)) [L473] tmp___0 = __VERIFIER_nondet_int() [L475] COND FALSE !(\read(tmp___0)) [L483] tmp___2 = __VERIFIER_nondet_int() [L485] COND TRUE \read(tmp___2) [L300] COND FALSE !(\read(pumpRunning)) [L307] COND TRUE \read(systemActive) [L329] int tmp ; [L332] COND TRUE ! pumpRunning [L426] int retValue_acc ; [L427] int tmp ; [L428] int tmp___0 ; [L165] int retValue_acc ; [L168] COND TRUE waterLevel < 2 [L169] retValue_acc = 1 [L170] return (retValue_acc); [L432] tmp = isHighWaterSensorDry() [L434] COND TRUE \read(tmp) [L435] tmp___0 = 0 [L439] retValue_acc = tmp___0 [L440] return (retValue_acc); [L334] tmp = isHighWaterLevel() [L336] COND FALSE !(\read(tmp)) [L886] int tmp ; [L887] int tmp___0 ; [L124] int retValue_acc ; [L127] retValue_acc = methaneLevelCritical [L128] return (retValue_acc); [L891] tmp = isMethaneLevelCritical() [L893] COND FALSE !(\read(tmp)) [L909] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...