./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f6fb2bb1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec1_product39.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 f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe ................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-f6fb2bb [2019-11-19 20:02:21,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-19 20:02:21,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-19 20:02:21,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-19 20:02:21,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-19 20:02:21,162 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-19 20:02:21,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-19 20:02:21,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-19 20:02:21,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-19 20:02:21,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-19 20:02:21,169 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-19 20:02:21,170 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-19 20:02:21,170 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-19 20:02:21,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-19 20:02:21,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-19 20:02:21,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-19 20:02:21,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-19 20:02:21,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-19 20:02:21,178 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-19 20:02:21,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-19 20:02:21,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-19 20:02:21,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-19 20:02:21,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-19 20:02:21,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-19 20:02:21,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-19 20:02:21,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-19 20:02:21,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-19 20:02:21,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-19 20:02:21,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-19 20:02:21,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-19 20:02:21,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-19 20:02:21,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-19 20:02:21,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-19 20:02:21,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-19 20:02:21,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-19 20:02:21,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-19 20:02:21,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-19 20:02:21,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-19 20:02:21,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-19 20:02:21,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-19 20:02:21,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-19 20:02:21,219 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-19 20:02:21,241 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-19 20:02:21,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-19 20:02:21,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-19 20:02:21,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-19 20:02:21,245 INFO L138 SettingsManager]: * Use SBE=true [2019-11-19 20:02:21,245 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-19 20:02:21,246 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-19 20:02:21,246 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-19 20:02:21,246 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-19 20:02:21,246 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-19 20:02:21,247 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-19 20:02:21,248 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-19 20:02:21,248 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-19 20:02:21,249 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-19 20:02:21,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-19 20:02:21,249 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-19 20:02:21,249 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-19 20:02:21,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-19 20:02:21,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-19 20:02:21,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-19 20:02:21,251 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-19 20:02:21,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-19 20:02:21,251 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-19 20:02:21,251 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-19 20:02:21,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-19 20:02:21,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-19 20:02:21,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-19 20:02:21,252 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-19 20:02:21,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-19 20:02:21,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-19 20:02:21,253 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-19 20:02:21,255 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-19 20:02:21,256 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 -> f2f38c4f83f0a2ec969b4b77f5129e3dfefde6fe [2019-11-19 20:02:21,551 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-19 20:02:21,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-19 20:02:21,571 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-19 20:02:21,576 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-19 20:02:21,577 INFO L275 PluginConnector]: CDTParser initialized [2019-11-19 20:02:21,577 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2019-11-19 20:02:21,651 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6b8dc2a/ea5eac43d7d04556b9285571b5d63be7/FLAG36d884dbf [2019-11-19 20:02:22,225 INFO L306 CDTParser]: Found 1 translation units. [2019-11-19 20:02:22,228 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product39.cil.c [2019-11-19 20:02:22,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6b8dc2a/ea5eac43d7d04556b9285571b5d63be7/FLAG36d884dbf [2019-11-19 20:02:22,475 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c6b8dc2a/ea5eac43d7d04556b9285571b5d63be7 [2019-11-19 20:02:22,478 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-19 20:02:22,480 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-19 20:02:22,481 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-19 20:02:22,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-19 20:02:22,484 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-19 20:02:22,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:22" (1/1) ... [2019-11-19 20:02:22,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5acbc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:22, skipping insertion in model container [2019-11-19 20:02:22,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:22" (1/1) ... [2019-11-19 20:02:22,496 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-19 20:02:22,553 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-19 20:02:22,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:02:22,971 INFO L188 MainTranslator]: Completed pre-run [2019-11-19 20:02:23,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-19 20:02:23,131 INFO L192 MainTranslator]: Completed translation [2019-11-19 20:02:23,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23 WrapperNode [2019-11-19 20:02:23,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-19 20:02:23,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-19 20:02:23,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-19 20:02:23,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-19 20:02:23,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (1/1) ... [2019-11-19 20:02:23,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (1/1) ... [2019-11-19 20:02:23,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-19 20:02:23,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-19 20:02:23,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-19 20:02:23,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-19 20:02:23,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (1/1) ... [2019-11-19 20:02:23,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (1/1) ... [2019-11-19 20:02:23,232 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (1/1) ... [2019-11-19 20:02:23,233 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (1/1) ... [2019-11-19 20:02:23,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (1/1) ... [2019-11-19 20:02:23,256 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (1/1) ... [2019-11-19 20:02:23,259 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (1/1) ... [2019-11-19 20:02:23,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-19 20:02:23,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-19 20:02:23,275 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-19 20:02:23,275 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-19 20:02:23,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-19 20:02:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-19 20:02:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-19 20:02:23,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-19 20:02:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-19 20:02:24,197 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-19 20:02:24,198 INFO L285 CfgBuilder]: Removed 160 assume(true) statements. [2019-11-19 20:02:24,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:24 BoogieIcfgContainer [2019-11-19 20:02:24,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-19 20:02:24,200 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-19 20:02:24,201 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-19 20:02:24,204 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-19 20:02:24,205 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:02:24,205 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 08:02:22" (1/3) ... [2019-11-19 20:02:24,207 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45fd0555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:02:24, skipping insertion in model container [2019-11-19 20:02:24,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:02:24,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:23" (2/3) ... [2019-11-19 20:02:24,208 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@45fd0555 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 08:02:24, skipping insertion in model container [2019-11-19 20:02:24,208 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-19 20:02:24,208 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:24" (3/3) ... [2019-11-19 20:02:24,210 INFO L371 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product39.cil.c [2019-11-19 20:02:24,258 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-19 20:02:24,258 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-19 20:02:24,259 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-19 20:02:24,259 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-19 20:02:24,259 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-19 20:02:24,259 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-19 20:02:24,260 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-19 20:02:24,260 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-19 20:02:24,278 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-11-19 20:02:24,309 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-19 20:02:24,309 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:02:24,310 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:02:24,319 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:02:24,319 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:02:24,319 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-19 20:02:24,320 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 110 states. [2019-11-19 20:02:24,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2019-11-19 20:02:24,330 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:02:24,330 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:02:24,331 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:02:24,332 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:02:24,342 INFO L794 eck$LassoCheckResult]: Stem: 74#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~cleanupTimeShifts~0 := 4; 6#L-1true havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 29#L835true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 41#L843true main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 82#L930true assume 0 != main_~tmp~8; 18#L907true havoc test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, 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; 19#L417-1true [2019-11-19 20:02:24,344 INFO L796 eck$LassoCheckResult]: Loop: 19#L417-1true assume !false; 97#L558true assume test_~splverifierCounter~0 < 4; 61#L559true test_~tmp~4 := test_#t~nondet47;havoc test_#t~nondet47; 65#L567true assume !(0 != test_~tmp~4); 68#L567-1true test_~tmp___0~1 := test_#t~nondet48;havoc test_#t~nondet48; 3#L577true assume !(0 != test_~tmp___0~1); 4#L577-1true test_~tmp___2~0 := test_#t~nondet49;havoc test_#t~nondet49; 42#L587true assume 0 != test_~tmp___2~0; 26#L593-1true assume !(0 != ~pumpRunning~0); 109#L624true assume !(0 != ~systemActive~0); 38#L631true havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 48#L493-1true __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 15#L417true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 19#L417-1true [2019-11-19 20:02:24,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:02:24,354 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-11-19 20:02:24,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:02:24,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231302039] [2019-11-19 20:02:24,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:02:25,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:25,326 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:02:25,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:02:25,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1671401909, now seen corresponding path program 1 times [2019-11-19 20:02:25,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:02:25,329 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575619745] [2019-11-19 20:02:25,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:02:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:25,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:25,344 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:02:25,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:02:25,346 INFO L82 PathProgramCache]: Analyzing trace with hash 42877029, now seen corresponding path program 1 times [2019-11-19 20:02:25,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:02:25,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757189170] [2019-11-19 20:02:25,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:02:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:02:25,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:02:25,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757189170] [2019-11-19 20:02:25,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:02:25,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-19 20:02:25,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820717629] [2019-11-19 20:02:25,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:02:25,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-19 20:02:25,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-19 20:02:25,646 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 6 states. [2019-11-19 20:02:25,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:02:25,915 INFO L93 Difference]: Finished difference Result 264 states and 378 transitions. [2019-11-19 20:02:25,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-19 20:02:25,917 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 264 states and 378 transitions. [2019-11-19 20:02:25,925 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 169 [2019-11-19 20:02:25,936 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 264 states to 243 states and 357 transitions. [2019-11-19 20:02:25,937 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 243 [2019-11-19 20:02:25,939 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 243 [2019-11-19 20:02:25,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 243 states and 357 transitions. [2019-11-19 20:02:25,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:02:25,942 INFO L688 BuchiCegarLoop]: Abstraction has 243 states and 357 transitions. [2019-11-19 20:02:25,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states and 357 transitions. [2019-11-19 20:02:25,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 144. [2019-11-19 20:02:25,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-11-19 20:02:25,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 210 transitions. [2019-11-19 20:02:25,987 INFO L711 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2019-11-19 20:02:25,987 INFO L591 BuchiCegarLoop]: Abstraction has 144 states and 210 transitions. [2019-11-19 20:02:25,987 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-19 20:02:25,987 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 144 states and 210 transitions. [2019-11-19 20:02:25,990 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 100 [2019-11-19 20:02:25,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:02:25,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:02:25,991 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:02:25,991 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:02:25,991 INFO L794 eck$LassoCheckResult]: Stem: 483#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~cleanupTimeShifts~0 := 4; 398#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 399#L835 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 436#L843 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 453#L930 assume 0 != main_~tmp~8; 419#L907 havoc test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, 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; 415#L417-1 [2019-11-19 20:02:25,992 INFO L796 eck$LassoCheckResult]: Loop: 415#L417-1 assume !false; 420#L558 assume test_~splverifierCounter~0 < 4; 473#L559 test_~tmp~4 := test_#t~nondet47;havoc test_#t~nondet47; 474#L567 assume !(0 != test_~tmp~4); 462#L567-1 test_~tmp___0~1 := test_#t~nondet48;havoc test_#t~nondet48; 392#L577 assume !(0 != test_~tmp___0~1); 393#L577-1 test_~tmp___2~0 := test_#t~nondet49;havoc test_#t~nondet49; 395#L587 assume 0 != test_~tmp___2~0; 429#L593-1 assume !(0 != ~pumpRunning~0); 431#L624 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 494#L682 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 446#L656-1 assume !(0 == ~pumpRunning~0); 445#L631 havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 450#L493-1 __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 414#L417 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 415#L417-1 [2019-11-19 20:02:25,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:02:25,992 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-11-19 20:02:25,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:02:25,993 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167789569] [2019-11-19 20:02:25,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:02:26,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:26,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:26,357 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:02:26,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:02:26,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1955219778, now seen corresponding path program 1 times [2019-11-19 20:02:26,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:02:26,360 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684401375] [2019-11-19 20:02:26,360 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:02:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-19 20:02:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-19 20:02:26,383 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684401375] [2019-11-19 20:02:26,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-19 20:02:26,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-19 20:02:26,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113456393] [2019-11-19 20:02:26,384 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-11-19 20:02:26,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-19 20:02:26,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-19 20:02:26,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-19 20:02:26,388 INFO L87 Difference]: Start difference. First operand 144 states and 210 transitions. cyclomatic complexity: 69 Second operand 3 states. [2019-11-19 20:02:26,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-19 20:02:26,521 INFO L93 Difference]: Finished difference Result 183 states and 250 transitions. [2019-11-19 20:02:26,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-19 20:02:26,522 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 183 states and 250 transitions. [2019-11-19 20:02:26,526 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2019-11-19 20:02:26,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 183 states to 183 states and 250 transitions. [2019-11-19 20:02:26,531 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 183 [2019-11-19 20:02:26,532 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 183 [2019-11-19 20:02:26,534 INFO L73 IsDeterministic]: Start isDeterministic. Operand 183 states and 250 transitions. [2019-11-19 20:02:26,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-19 20:02:26,538 INFO L688 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2019-11-19 20:02:26,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states and 250 transitions. [2019-11-19 20:02:26,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2019-11-19 20:02:26,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 183 states. [2019-11-19 20:02:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 250 transitions. [2019-11-19 20:02:26,564 INFO L711 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2019-11-19 20:02:26,565 INFO L591 BuchiCegarLoop]: Abstraction has 183 states and 250 transitions. [2019-11-19 20:02:26,565 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2019-11-19 20:02:26,566 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 183 states and 250 transitions. [2019-11-19 20:02:26,568 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 130 [2019-11-19 20:02:26,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-19 20:02:26,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-19 20:02:26,571 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-11-19 20:02:26,572 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-19 20:02:26,572 INFO L794 eck$LassoCheckResult]: Stem: 824#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~head~0.base, ~head~0.offset := 0, 0;call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(30);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(9);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(21);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(30);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(9);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(21);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(25);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(13);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string40.base, #t~string40.offset, 1);call write~init~int(77, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(101, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(116, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(104, #t~string40.base, 4 + #t~string40.offset, 1);call write~init~int(58, #t~string40.base, 5 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 6 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string42.base, #t~string42.offset, 1);call write~init~int(82, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(73, #t~string42.base, 2 + #t~string42.offset, 1);call write~init~int(84, #t~string42.base, 3 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 4 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string44.base, #t~string44.offset, 1);call write~init~int(75, #t~string44.base, 1 + #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 2 + #t~string44.offset, 1);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string46.base, #t~string46.offset, 1);call write~init~int(0, #t~string46.base, 1 + #t~string46.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(13);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string61.base, #t~string61.offset, 1);call write~init~int(80, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(117, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(109, #t~string61.base, 3 + #t~string61.offset, 1);call write~init~int(112, #t~string61.base, 4 + #t~string61.offset, 1);call write~init~int(58, #t~string61.base, 5 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 6 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string67.base, #t~string67.offset, 1);call write~init~int(32, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string69.base, #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 1 + #t~string69.offset, 1);~cleanupTimeShifts~0 := 4; 731#L-1 havoc main_#res;havoc main_#t~ret72, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 732#L835 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 767#L843 main_#t~ret72 := valid_product_#res;main_~tmp~8 := main_#t~ret72;havoc main_#t~ret72; 788#L930 assume 0 != main_~tmp~8; 751#L907 havoc test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_#t~nondet50, 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; 747#L417-1 [2019-11-19 20:02:26,573 INFO L796 eck$LassoCheckResult]: Loop: 747#L417-1 assume !false; 752#L558 assume test_~splverifierCounter~0 < 4; 813#L559 test_~tmp~4 := test_#t~nondet47;havoc test_#t~nondet47; 814#L567 assume !(0 != test_~tmp~4); 801#L567-1 test_~tmp___0~1 := test_#t~nondet48;havoc test_#t~nondet48; 725#L577 assume !(0 != test_~tmp___0~1); 726#L577-1 test_~tmp___2~0 := test_#t~nondet49;havoc test_#t~nondet49; 728#L587 assume 0 != test_~tmp___2~0; 761#L593-1 assume !(0 != ~pumpRunning~0); 762#L624 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret52, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 839#L682 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret51, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 777#L656-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret70, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 778#L533-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 740#L538-1 isHighWaterLevel_#t~ret70 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret70;havoc isHighWaterLevel_#t~ret70; 741#L784-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~2 := 0; 829#L784-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 820#L790-1 processEnvironment__wrappee__highWaterSensor_#t~ret51 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret51;havoc processEnvironment__wrappee__highWaterSensor_#t~ret51; 821#L660-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 780#L631 havoc __utac_acc__Specification1_spec__1_#t~ret35, __utac_acc__Specification1_spec__1_#t~ret36, __utac_acc__Specification1_spec__1_~tmp~3, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~3;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 898#L493-1 __utac_acc__Specification1_spec__1_#t~ret35 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~3 := __utac_acc__Specification1_spec__1_#t~ret35;havoc __utac_acc__Specification1_spec__1_#t~ret35; 746#L417 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3); 747#L417-1 [2019-11-19 20:02:26,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:02:26,574 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-11-19 20:02:26,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:02:26,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872260850] [2019-11-19 20:02:26,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:02:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:26,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:26,892 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:02:26,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:02:26,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1592970094, now seen corresponding path program 1 times [2019-11-19 20:02:26,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:02:26,894 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426904596] [2019-11-19 20:02:26,895 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:02:26,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:26,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:26,922 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:02:26,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-19 20:02:26,924 INFO L82 PathProgramCache]: Analyzing trace with hash 2049041288, now seen corresponding path program 1 times [2019-11-19 20:02:26,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-19 20:02:26,924 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581759786] [2019-11-19 20:02:26,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-19 20:02:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-19 20:02:27,358 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-19 20:02:27,562 WARN L191 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-11-19 20:02:49,976 WARN L191 SmtUtils]: Spent 22.32 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-11-19 20:03:00,484 WARN L191 SmtUtils]: Spent 10.51 s on a formula simplification that was a NOOP. DAG size: 449 [2019-11-19 20:03:00,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 08:03:00 BoogieIcfgContainer [2019-11-19 20:03:00,563 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-19 20:03:00,563 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-19 20:03:00,563 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-19 20:03:00,564 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-19 20:03:00,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:24" (3/4) ... [2019-11-19 20:03:00,568 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-19 20:03:00,640 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-19 20:03:00,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-19 20:03:00,644 INFO L168 Benchmark]: Toolchain (without parser) took 38162.39 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 304.6 MB). Free memory was 952.3 MB in the beginning and 837.1 MB in the end (delta: 115.2 MB). Peak memory consumption was 419.9 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:00,649 INFO L168 Benchmark]: CDTParser took 0.24 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 20:03:00,650 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:00,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:00,653 INFO L168 Benchmark]: Boogie Preprocessor took 47.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-19 20:03:00,654 INFO L168 Benchmark]: RCFGBuilder took 934.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:00,655 INFO L168 Benchmark]: BuchiAutomizer took 36362.52 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 189.8 MB). Free memory was 1.0 GB in the beginning and 846.6 MB in the end (delta: 184.1 MB). Peak memory consumption was 413.9 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:00,655 INFO L168 Benchmark]: Witness Printer took 77.21 ms. Allocated memory is still 1.3 GB. Free memory was 846.6 MB in the beginning and 837.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 11.5 GB. [2019-11-19 20:03:00,661 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 651.83 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 952.3 MB in the beginning and 1.1 GB in the end (delta: -145.4 MB). Peak memory consumption was 21.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 82.78 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.88 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 934.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 58.6 MB). Peak memory consumption was 58.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 36362.52 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 189.8 MB). Free memory was 1.0 GB in the beginning and 846.6 MB in the end (delta: 184.1 MB). Peak memory consumption was 413.9 MB. Max. memory is 11.5 GB. * Witness Printer took 77.21 ms. Allocated memory is still 1.3 GB. Free memory was 846.6 MB in the beginning and 837.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 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 183 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 36.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 35.6s. Construction of modules took 0.2s. 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, 99 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 183 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 303 SDtfs, 706 SDslu, 752 SDs, 0 SdLazy, 73 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 557]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=0} State at position 1 is {NULL=0, NULL=-1, NULL=0, NULL=0, NULL=0, NULL=-16, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58999291=60, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@380a44c6=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f337f62=0, NULL=0, NULL=-19, NULL=-25, NULL=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@616e05bc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7ed0165f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c1ed59d=0, tmp___0=0, retValue_acc=1, NULL=0, tmp=0, NULL=0, retValue_acc=0, NULL=0, tmp___1=0, NULL=-22, NULL=-5, NULL=-24, tmp___0=0, NULL=-13, cleanupTimeShifts=4, NULL=-2, NULL=-7, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=-4, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=0, NULL=-10, NULL=0, NULL=0, retValue_acc=0, \result=1, NULL=-3, head=0, pumpRunning=0, NULL=-11, \result=0, retValue_acc=1, NULL=-18, NULL=0, tmp=0, tmp=1, NULL=0, \result=1, NULL=-21, NULL=-12, NULL=-14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@171a3f06=0, tmp=1, tmp___2=60, NULL=-6, tmp___0=0, splverifierCounter=0, NULL=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b679e3f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6407500c=0, NULL=-15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64ad8518=0, head=0, NULL=0, NULL=-9, tmp=0, NULL=-23, NULL=0, NULL=-8, NULL=0, NULL=0, NULL=-17, NULL=-20} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L450] int waterLevel = 1; [L451] int methaneLevelCritical = 0; [L617] int pumpRunning = 0; [L618] int systemActive = 1; [L848] int cleanupTimeShifts = 4; [L921] int retValue_acc ; [L922] int tmp ; [L839] int retValue_acc ; [L842] retValue_acc = 1 [L843] return (retValue_acc); [L928] tmp = valid_product() [L930] COND TRUE \read(tmp) [L548] int splverifierCounter ; [L549] int tmp ; [L550] int tmp___0 ; [L551] int tmp___1 ; [L552] int tmp___2 ; [L555] splverifierCounter = 0 Loop: [L557] COND TRUE 1 [L559] COND TRUE splverifierCounter < 4 [L565] tmp = __VERIFIER_nondet_int() [L567] COND FALSE !(\read(tmp)) [L575] tmp___0 = __VERIFIER_nondet_int() [L577] COND FALSE !(\read(tmp___0)) [L585] tmp___2 = __VERIFIER_nondet_int() [L587] COND TRUE \read(tmp___2) [L624] COND FALSE !(\read(pumpRunning)) [L631] COND TRUE \read(systemActive) [L679] int tmp ; [L682] COND FALSE !(\read(pumpRunning)) [L653] int tmp ; [L656] COND TRUE ! pumpRunning [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L530] int retValue_acc ; [L533] COND TRUE waterLevel < 2 [L534] retValue_acc = 1 [L535] return (retValue_acc); [L782] tmp = isHighWaterSensorDry() [L784] COND TRUE \read(tmp) [L785] tmp___0 = 0 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L658] tmp = isHighWaterLevel() [L660] COND FALSE !(\read(tmp)) [L410] int tmp ; [L411] int tmp___0 ; [L489] int retValue_acc ; [L492] retValue_acc = methaneLevelCritical [L493] return (retValue_acc); [L415] tmp = isMethaneLevelCritical() [L417] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...