./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/product-lines/minepump_spec3_product58_true-unreach-call_false-termination.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f Calling Ultimate with: 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 /storage/repos/svcomp/c/product-lines/minepump_spec3_product58_true-unreach-call_false-termination.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 f0abcca86e101e0402ce9c7a98a1409292a39ee1 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.1.24-0ed9222-m [2019-01-14 04:24:38,147 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 04:24:38,149 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 04:24:38,161 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 04:24:38,161 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 04:24:38,162 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 04:24:38,163 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 04:24:38,165 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 04:24:38,167 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 04:24:38,168 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 04:24:38,169 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 04:24:38,169 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 04:24:38,170 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 04:24:38,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 04:24:38,172 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 04:24:38,173 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 04:24:38,174 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 04:24:38,176 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 04:24:38,178 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 04:24:38,180 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 04:24:38,181 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 04:24:38,182 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 04:24:38,185 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 04:24:38,185 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 04:24:38,185 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 04:24:38,186 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 04:24:38,191 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 04:24:38,192 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 04:24:38,193 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 04:24:38,196 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 04:24:38,197 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 04:24:38,197 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 04:24:38,197 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 04:24:38,198 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 04:24:38,199 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 04:24:38,200 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 04:24:38,200 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 04:24:38,220 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 04:24:38,221 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 04:24:38,223 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 04:24:38,223 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 04:24:38,223 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 04:24:38,224 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 04:24:38,224 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 04:24:38,225 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 04:24:38,225 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 04:24:38,226 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 04:24:38,226 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 04:24:38,226 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 04:24:38,227 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 04:24:38,227 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 04:24:38,227 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 04:24:38,227 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 04:24:38,227 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 04:24:38,227 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 04:24:38,228 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 04:24:38,228 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 04:24:38,228 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 04:24:38,228 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 04:24:38,228 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 04:24:38,228 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 04:24:38,232 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 04:24:38,232 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 04:24:38,232 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 04:24:38,232 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 04:24:38,233 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 04:24:38,233 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 04:24:38,233 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 04:24:38,235 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 04:24:38,236 INFO L133 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 -> f0abcca86e101e0402ce9c7a98a1409292a39ee1 [2019-01-14 04:24:38,284 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 04:24:38,299 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 04:24:38,302 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 04:24:38,304 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 04:24:38,304 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 04:24:38,305 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/product-lines/minepump_spec3_product58_true-unreach-call_false-termination.cil.c [2019-01-14 04:24:38,364 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61e3250b6/db80094d54464338b694bb47ae587515/FLAGe6f72da1d [2019-01-14 04:24:38,868 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 04:24:38,868 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/product-lines/minepump_spec3_product58_true-unreach-call_false-termination.cil.c [2019-01-14 04:24:38,888 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61e3250b6/db80094d54464338b694bb47ae587515/FLAGe6f72da1d [2019-01-14 04:24:39,138 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61e3250b6/db80094d54464338b694bb47ae587515 [2019-01-14 04:24:39,142 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 04:24:39,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 04:24:39,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 04:24:39,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 04:24:39,148 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 04:24:39,149 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4998b6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39, skipping insertion in model container [2019-01-14 04:24:39,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 04:24:39,217 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 04:24:39,576 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:24:39,606 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 04:24:39,812 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:24:39,850 INFO L195 MainTranslator]: Completed translation [2019-01-14 04:24:39,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39 WrapperNode [2019-01-14 04:24:39,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 04:24:39,852 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 04:24:39,852 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 04:24:39,852 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 04:24:39,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,932 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 04:24:39,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 04:24:39,933 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 04:24:39,933 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 04:24:39,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,964 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (1/1) ... [2019-01-14 04:24:39,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 04:24:39,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 04:24:39,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 04:24:39,985 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 04:24:39,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (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 [2019-01-14 04:24:40,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-14 04:24:40,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-14 04:24:40,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 04:24:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 04:24:41,453 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 04:24:41,454 INFO L286 CfgBuilder]: Removed 200 assue(true) statements. [2019-01-14 04:24:41,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:24:41 BoogieIcfgContainer [2019-01-14 04:24:41,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 04:24:41,456 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 04:24:41,456 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 04:24:41,459 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 04:24:41,460 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:24:41,460 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 04:24:39" (1/3) ... [2019-01-14 04:24:41,461 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f4bd6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:24:41, skipping insertion in model container [2019-01-14 04:24:41,462 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:24:41,462 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:24:39" (2/3) ... [2019-01-14 04:24:41,462 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3f4bd6cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:24:41, skipping insertion in model container [2019-01-14 04:24:41,462 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:24:41,462 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:24:41" (3/3) ... [2019-01-14 04:24:41,464 INFO L375 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product58_true-unreach-call_false-termination.cil.c [2019-01-14 04:24:41,518 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 04:24:41,519 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 04:24:41,519 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 04:24:41,519 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 04:24:41,520 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 04:24:41,520 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 04:24:41,520 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 04:24:41,520 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 04:24:41,520 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 04:24:41,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states. [2019-01-14 04:24:41,573 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-01-14 04:24:41,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:24:41,574 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:24:41,583 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-14 04:24:41,583 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:24:41,583 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 04:24:41,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 138 states. [2019-01-14 04:24:41,592 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 89 [2019-01-14 04:24:41,593 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:24:41,593 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:24:41,594 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-14 04:24:41,594 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:24:41,600 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 15#L-1true havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 46#L166true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 88#L174true main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 84#L130true assume 0 != main_~tmp~0; 25#L103true havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 135#L679-1true [2019-01-14 04:24:41,601 INFO L796 eck$LassoCheckResult]: Loop: 135#L679-1true assume !false; 122#L710true assume test_~splverifierCounter~0 < 4; 55#L711true test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 91#L719true assume !(0 != test_~tmp~5); 65#L719-1true test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 123#L729true assume !(0 != test_~tmp___0~1); 124#L729-1true test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 22#L739true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 28#L747-2true assume !(0 != ~pumpRunning~0); 17#L775true assume !(0 != ~systemActive~0); 95#L782true havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 94#L603-2true __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 26#L673true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 135#L679-1true [2019-01-14 04:24:41,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:24:41,607 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2019-01-14 04:24:41,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:24:41,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:24:41,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:41,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:24:41,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:42,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:24:42,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1678143626, now seen corresponding path program 1 times [2019-01-14 04:24:42,575 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:24:42,575 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:24:42,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:42,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:24:42,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:24:42,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 04:24:42,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 04:24:42,674 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 04:24:42,678 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-14 04:24:42,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 04:24:42,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 04:24:42,692 INFO L87 Difference]: Start difference. First operand 138 states. Second operand 3 states. [2019-01-14 04:24:42,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 04:24:42,766 INFO L93 Difference]: Finished difference Result 138 states and 197 transitions. [2019-01-14 04:24:42,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 04:24:42,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 138 states and 197 transitions. [2019-01-14 04:24:42,783 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-01-14 04:24:42,790 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 138 states to 131 states and 189 transitions. [2019-01-14 04:24:42,791 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 131 [2019-01-14 04:24:42,792 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 131 [2019-01-14 04:24:42,794 INFO L73 IsDeterministic]: Start isDeterministic. Operand 131 states and 189 transitions. [2019-01-14 04:24:42,795 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:24:42,795 INFO L706 BuchiCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-01-14 04:24:42,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states and 189 transitions. [2019-01-14 04:24:42,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-01-14 04:24:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-01-14 04:24:42,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2019-01-14 04:24:42,831 INFO L729 BuchiCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-01-14 04:24:42,831 INFO L609 BuchiCegarLoop]: Abstraction has 131 states and 189 transitions. [2019-01-14 04:24:42,832 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 04:24:42,832 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 189 transitions. [2019-01-14 04:24:42,834 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2019-01-14 04:24:42,834 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:24:42,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:24:42,835 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-14 04:24:42,835 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:24:42,835 INFO L794 eck$LassoCheckResult]: Stem: 411#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 312#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 313#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 357#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 395#L130 assume 0 != main_~tmp~0; 326#L103 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 327#L679-1 [2019-01-14 04:24:42,836 INFO L796 eck$LassoCheckResult]: Loop: 327#L679-1 assume !false; 412#L710 assume test_~splverifierCounter~0 < 4; 363#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 364#L719 assume !(0 != test_~tmp~5); 375#L719-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 376#L729 assume !(0 != test_~tmp___0~1); 354#L729-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 321#L739 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 322#L747-2 assume !(0 != ~pumpRunning~0); 297#L775 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 291#L833 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 292#L807-1 assume !(0 == ~pumpRunning~0); 299#L782 havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 400#L603-2 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 328#L673 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 327#L679-1 [2019-01-14 04:24:42,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:24:42,836 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2019-01-14 04:24:42,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:24:42,837 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:24:42,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:42,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:24:42,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:43,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:24:43,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1068993921, now seen corresponding path program 1 times [2019-01-14 04:24:43,255 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:24:43,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:24:43,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:43,257 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 04:24:43,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:24:43,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 04:24:43,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 04:24:43,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 04:24:43,317 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-14 04:24:43,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 04:24:43,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 04:24:43,319 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. cyclomatic complexity: 60 Second operand 3 states. [2019-01-14 04:24:44,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 04:24:44,095 INFO L93 Difference]: Finished difference Result 178 states and 246 transitions. [2019-01-14 04:24:44,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 04:24:44,098 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 178 states and 246 transitions. [2019-01-14 04:24:44,102 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-01-14 04:24:44,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 178 states to 178 states and 246 transitions. [2019-01-14 04:24:44,114 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 178 [2019-01-14 04:24:44,116 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 178 [2019-01-14 04:24:44,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 178 states and 246 transitions. [2019-01-14 04:24:44,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:24:44,119 INFO L706 BuchiCegarLoop]: Abstraction has 178 states and 246 transitions. [2019-01-14 04:24:44,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states and 246 transitions. [2019-01-14 04:24:44,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2019-01-14 04:24:44,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-01-14 04:24:44,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 246 transitions. [2019-01-14 04:24:44,134 INFO L729 BuchiCegarLoop]: Abstraction has 178 states and 246 transitions. [2019-01-14 04:24:44,135 INFO L609 BuchiCegarLoop]: Abstraction has 178 states and 246 transitions. [2019-01-14 04:24:44,135 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-14 04:24:44,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 178 states and 246 transitions. [2019-01-14 04:24:44,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 122 [2019-01-14 04:24:44,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:24:44,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:24:44,138 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-14 04:24:44,138 INFO L868 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] [2019-01-14 04:24:44,138 INFO L794 eck$LassoCheckResult]: Stem: 728#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 624#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 625#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 669#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 707#L130 assume 0 != main_~tmp~0; 638#L103 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 639#L679-1 [2019-01-14 04:24:44,139 INFO L796 eck$LassoCheckResult]: Loop: 639#L679-1 assume !false; 729#L710 assume test_~splverifierCounter~0 < 4; 675#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 676#L719 assume !(0 != test_~tmp~5); 685#L719-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 686#L729 assume !(0 != test_~tmp___0~1); 666#L729-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 633#L739 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 634#L747-2 assume !(0 != ~pumpRunning~0); 629#L775 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 606#L833 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 607#L807-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 604#L643-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 605#L648-1 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 653#L953-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 671#L953-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 645#L959-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 619#L811-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 613#L782 havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 714#L603-2 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 640#L673 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 639#L679-1 [2019-01-14 04:24:44,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:24:44,139 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2019-01-14 04:24:44,140 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:24:44,140 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:24:44,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:44,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:24:44,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:44,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:44,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:24:44,613 INFO L82 PathProgramCache]: Analyzing trace with hash 87587051, now seen corresponding path program 1 times [2019-01-14 04:24:44,613 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:24:44,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:24:44,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:44,614 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 04:24:44,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:44,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:44,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:24:44,636 INFO L82 PathProgramCache]: Analyzing trace with hash 543658245, now seen corresponding path program 1 times [2019-01-14 04:24:44,636 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:24:44,636 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:24:44,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:44,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:24:44,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:24:44,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 04:24:44,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 04:24:44,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 04:24:45,556 WARN L181 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-01-14 04:24:45,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 04:24:45,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-14 04:24:45,644 INFO L87 Difference]: Start difference. First operand 178 states and 246 transitions. cyclomatic complexity: 70 Second operand 5 states. [2019-01-14 04:24:46,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 04:24:46,468 INFO L93 Difference]: Finished difference Result 621 states and 863 transitions. [2019-01-14 04:24:46,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-01-14 04:24:46,469 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 621 states and 863 transitions. [2019-01-14 04:24:46,476 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 452 [2019-01-14 04:24:46,483 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 621 states to 621 states and 863 transitions. [2019-01-14 04:24:46,483 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 621 [2019-01-14 04:24:46,486 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 621 [2019-01-14 04:24:46,487 INFO L73 IsDeterministic]: Start isDeterministic. Operand 621 states and 863 transitions. [2019-01-14 04:24:46,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:24:46,495 INFO L706 BuchiCegarLoop]: Abstraction has 621 states and 863 transitions. [2019-01-14 04:24:46,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 621 states and 863 transitions. [2019-01-14 04:24:46,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 621 to 350. [2019-01-14 04:24:46,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2019-01-14 04:24:46,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 478 transitions. [2019-01-14 04:24:46,539 INFO L729 BuchiCegarLoop]: Abstraction has 350 states and 478 transitions. [2019-01-14 04:24:46,539 INFO L609 BuchiCegarLoop]: Abstraction has 350 states and 478 transitions. [2019-01-14 04:24:46,539 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2019-01-14 04:24:46,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 350 states and 478 transitions. [2019-01-14 04:24:46,542 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 244 [2019-01-14 04:24:46,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:24:46,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:24:46,543 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2019-01-14 04:24:46,543 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 04:24:46,546 INFO L794 eck$LassoCheckResult]: Stem: 1571#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(30);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(9);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(21);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(30);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(9);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(25);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1); 1441#L-1 havoc main_#res;havoc main_#t~ret0, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 1442#L166 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 1488#L174 main_#t~ret0 := valid_product_#res;main_~tmp~0 := main_#t~ret0;havoc main_#t~ret0; 1535#L130 assume 0 != main_~tmp~0; 1456#L103 havoc test_#t~nondet50, test_#t~nondet51, test_#t~nondet52, test_#t~nondet53, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1457#L679-1 [2019-01-14 04:24:46,546 INFO L796 eck$LassoCheckResult]: Loop: 1457#L679-1 assume !false; 1705#L710 assume test_~splverifierCounter~0 < 4; 1494#L711 test_~tmp~5 := test_#t~nondet50;havoc test_#t~nondet50; 1495#L719 assume !(0 != test_~tmp~5); 1506#L719-1 test_~tmp___0~1 := test_#t~nondet51;havoc test_#t~nondet51; 1507#L729 assume !(0 != test_~tmp___0~1); 1574#L729-1 test_~tmp___2~0 := test_#t~nondet52;havoc test_#t~nondet52; 1451#L739 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1452#L747-2 assume !(0 != ~pumpRunning~0); 1446#L775 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1447#L833 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret54, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1737#L807-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret74, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 1735#L643-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1734#L648-1 isHighWaterLevel_#t~ret74 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret74;havoc isHighWaterLevel_#t~ret74; 1513#L953-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1490#L953-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1463#L959-1 processEnvironment__wrappee__highWaterSensor_#t~ret54 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret54;havoc processEnvironment__wrappee__highWaterSensor_#t~ret54; 1436#L811-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1430#L782 havoc __utac_acc__Specification3_spec__1_#t~ret47, __utac_acc__Specification3_spec__1_#t~ret48, __utac_acc__Specification3_spec__1_#t~ret49, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1711#L603-2 __utac_acc__Specification3_spec__1_#t~ret47 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret47;havoc __utac_acc__Specification3_spec__1_#t~ret47; 1710#L673 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 1709#L635 __utac_acc__Specification3_spec__1_#t~ret48 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret48;havoc __utac_acc__Specification3_spec__1_#t~ret48; 1706#L679 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1457#L679-1 [2019-01-14 04:24:46,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:24:46,546 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2019-01-14 04:24:46,547 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:24:46,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:24:46,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:46,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:24:46,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:46,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:24:46,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1728181283, now seen corresponding path program 1 times [2019-01-14 04:24:46,924 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:24:46,924 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:24:46,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:46,926 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-14 04:24:46,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:46,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:46,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:46,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:24:46,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1530428041, now seen corresponding path program 1 times [2019-01-14 04:24:46,940 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:24:46,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:24:46,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:46,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:24:46,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:24:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:24:48,775 WARN L181 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-01-14 04:24:49,243 WARN L181 SmtUtils]: Spent 467.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-01-14 04:25:13,043 WARN L181 SmtUtils]: Spent 23.79 s on a formula simplification. DAG size of input: 451 DAG size of output: 449 [2019-01-14 04:25:26,694 WARN L181 SmtUtils]: Spent 13.65 s on a formula simplification that was a NOOP. DAG size: 449 [2019-01-14 04:25:26,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 04:25:26 BoogieIcfgContainer [2019-01-14 04:25:26,795 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 04:25:26,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 04:25:26,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 04:25:26,796 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 04:25:26,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:24:41" (3/4) ... [2019-01-14 04:25:26,804 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 04:25:26,903 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 04:25:26,904 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 04:25:26,905 INFO L168 Benchmark]: Toolchain (without parser) took 47762.51 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 344.5 MB). Free memory was 950.0 MB in the beginning and 1.2 GB in the end (delta: -248.1 MB). Peak memory consumption was 96.4 MB. Max. memory is 11.5 GB. [2019-01-14 04:25:26,908 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 04:25:26,916 INFO L168 Benchmark]: CACSL2BoogieTranslator took 706.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -155.5 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2019-01-14 04:25:26,917 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.63 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. [2019-01-14 04:25:26,917 INFO L168 Benchmark]: Boogie Preprocessor took 51.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-14 04:25:26,917 INFO L168 Benchmark]: RCFGBuilder took 1470.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 11.5 GB. [2019-01-14 04:25:26,918 INFO L168 Benchmark]: BuchiAutomizer took 45339.57 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 218.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -168.2 MB). Peak memory consumption was 405.1 MB. Max. memory is 11.5 GB. [2019-01-14 04:25:26,918 INFO L168 Benchmark]: Witness Printer took 108.22 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-01-14 04:25:26,924 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 706.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -155.5 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 80.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1470.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 45339.57 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 218.1 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -168.2 MB). Peak memory consumption was 405.1 MB. Max. memory is 11.5 GB. * Witness Printer took 108.22 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 350 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 45.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 43.2s. Construction of modules took 1.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 271 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 350 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 632 SDtfs, 1088 SDslu, 934 SDs, 0 SdLazy, 138 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 709]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9} State at position 1 is {NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=9, NULL=-17, NULL=0, NULL=-24, NULL=0, NULL=0, NULL=-20, NULL=-5, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41c5c82b=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5db7be30=78, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23adc728=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7723fd0e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@791012f5=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55d204fa=0, NULL=0, NULL=0, tmp=0, NULL=-15, NULL=0, tmp___1=0, NULL=-11, NULL=8, tmp___0=1, NULL=-7, cleanupTimeShifts=4, NULL=-1, NULL=-2, NULL=-12, NULL=-14, tmp=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=-4, \result=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=0, NULL=-16, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, \result=0, NULL=-22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@608e2038=0, NULL=0, NULL=0, \result=1, NULL=-18, NULL=-9, NULL=-8, NULL=0, retValue_acc=0, NULL=0, retValue_acc=1, retValue_acc=1, tmp___2=78, NULL=-3, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@12bcc0ab=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3223728e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@389c349=0, \result=0, NULL=-21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3db273ec=0, NULL=-19, tmp___1=0, head=0, NULL=-23, NULL=0, NULL=0, NULL=-10, tmp=0, NULL=0, NULL=0, NULL=-13, NULL=-6} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L40] int cleanupTimeShifts = 4; [L348] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L560] int waterLevel = 1; [L561] int methaneLevelCritical = 0; [L768] int pumpRunning = 0; [L769] int systemActive = 1; [L121] int retValue_acc ; [L122] int tmp ; [L170] int retValue_acc ; [L173] retValue_acc = 1 [L174] return (retValue_acc); [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L700] int splverifierCounter ; [L701] int tmp ; [L702] int tmp___0 ; [L703] int tmp___1 ; [L704] int tmp___2 ; [L707] splverifierCounter = 0 Loop: [L709] COND TRUE 1 [L711] COND TRUE splverifierCounter < 4 [L717] tmp = __VERIFIER_nondet_int() [L719] COND FALSE !(\read(tmp)) [L727] tmp___0 = __VERIFIER_nondet_int() [L729] COND FALSE !(\read(tmp___0)) [L737] tmp___2 = __VERIFIER_nondet_int() [L739] COND TRUE \read(tmp___2) [L986] systemActive = 1 [L775] COND FALSE !(\read(pumpRunning)) [L782] COND TRUE \read(systemActive) [L830] int tmp ; [L833] COND FALSE !(\read(pumpRunning)) [L804] int tmp ; [L807] COND TRUE ! pumpRunning [L945] int retValue_acc ; [L946] int tmp ; [L947] int tmp___0 ; [L640] int retValue_acc ; [L643] COND TRUE waterLevel < 2 [L644] retValue_acc = 1 [L645] return (retValue_acc); [L951] tmp = isHighWaterSensorDry() [L953] COND TRUE \read(tmp) [L954] tmp___0 = 0 [L958] retValue_acc = tmp___0 [L959] return (retValue_acc); [L809] tmp = isHighWaterLevel() [L811] COND FALSE !(\read(tmp)) [L665] int tmp ; [L666] int tmp___0 ; [L667] int tmp___1 ; [L599] int retValue_acc ; [L602] retValue_acc = methaneLevelCritical [L603] return (retValue_acc); [L671] tmp = isMethaneLevelCritical() [L673] COND FALSE !(\read(tmp)) [L631] int retValue_acc ; [L634] retValue_acc = waterLevel [L635] return (retValue_acc); [L677] tmp___0 = getWaterLevel() [L679] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...