./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product59.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 064e408d9f8eb6588718dabe79f6e3f439ef5ca6 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-31 04:00:49,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-31 04:00:49,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-31 04:00:49,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-31 04:00:49,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-31 04:00:49,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-31 04:00:49,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-31 04:00:49,387 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-31 04:00:49,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-31 04:00:49,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-31 04:00:49,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-31 04:00:49,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-31 04:00:49,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-31 04:00:49,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-31 04:00:49,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-31 04:00:49,406 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-31 04:00:49,408 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-31 04:00:49,408 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-31 04:00:49,411 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-31 04:00:49,416 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-31 04:00:49,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-31 04:00:49,419 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-31 04:00:49,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-31 04:00:49,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-31 04:00:49,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-31 04:00:49,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-31 04:00:49,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-31 04:00:49,431 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-31 04:00:49,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-31 04:00:49,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-31 04:00:49,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-31 04:00:49,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-31 04:00:49,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-31 04:00:49,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-31 04:00:49,437 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-31 04:00:49,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-31 04:00:49,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-31 04:00:49,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-31 04:00:49,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-31 04:00:49,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-31 04:00:49,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-31 04:00:49,441 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-31 04:00:49,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-31 04:00:49,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-31 04:00:49,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-31 04:00:49,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-31 04:00:49,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-31 04:00:49,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-31 04:00:49,491 INFO L138 SettingsManager]: * Use SBE=true [2021-08-31 04:00:49,491 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-31 04:00:49,492 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-31 04:00:49,492 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-31 04:00:49,493 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-31 04:00:49,493 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-31 04:00:49,493 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-31 04:00:49,493 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-31 04:00:49,493 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-31 04:00:49,494 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-31 04:00:49,494 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-31 04:00:49,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-31 04:00:49,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-31 04:00:49,494 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-31 04:00:49,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-31 04:00:49,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-31 04:00:49,495 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-31 04:00:49,495 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-31 04:00:49,495 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-31 04:00:49,495 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-31 04:00:49,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-31 04:00:49,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-31 04:00:49,496 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-31 04:00:49,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-31 04:00:49,496 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-31 04:00:49,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-31 04:00:49,498 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-31 04:00:49,498 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 064e408d9f8eb6588718dabe79f6e3f439ef5ca6 [2021-08-31 04:00:49,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-31 04:00:49,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-31 04:00:49,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-31 04:00:49,846 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-31 04:00:49,846 INFO L275 PluginConnector]: CDTParser initialized [2021-08-31 04:00:49,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-08-31 04:00:49,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f5c77a0b/be0bc28c95134eb892fde828a7af1478/FLAGd0eadd670 [2021-08-31 04:00:50,449 INFO L306 CDTParser]: Found 1 translation units. [2021-08-31 04:00:50,449 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-08-31 04:00:50,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f5c77a0b/be0bc28c95134eb892fde828a7af1478/FLAGd0eadd670 [2021-08-31 04:00:50,925 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f5c77a0b/be0bc28c95134eb892fde828a7af1478 [2021-08-31 04:00:50,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-31 04:00:50,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-31 04:00:50,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-31 04:00:50,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-31 04:00:50,943 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-31 04:00:50,944 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:00:50" (1/1) ... [2021-08-31 04:00:50,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50f3051b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:50, skipping insertion in model container [2021-08-31 04:00:50,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 04:00:50" (1/1) ... [2021-08-31 04:00:50,953 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-31 04:00:51,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-31 04:00:51,270 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[14819,14832] [2021-08-31 04:00:51,285 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:00:51,294 INFO L203 MainTranslator]: Completed pre-run [2021-08-31 04:00:51,349 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[14819,14832] [2021-08-31 04:00:51,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-31 04:00:51,392 INFO L208 MainTranslator]: Completed translation [2021-08-31 04:00:51,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51 WrapperNode [2021-08-31 04:00:51,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-31 04:00:51,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-31 04:00:51,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-31 04:00:51,395 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-31 04:00:51,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (1/1) ... [2021-08-31 04:00:51,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (1/1) ... [2021-08-31 04:00:51,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-31 04:00:51,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-31 04:00:51,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-31 04:00:51,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-31 04:00:51,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (1/1) ... [2021-08-31 04:00:51,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (1/1) ... [2021-08-31 04:00:51,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (1/1) ... [2021-08-31 04:00:51,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (1/1) ... [2021-08-31 04:00:51,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (1/1) ... [2021-08-31 04:00:51,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (1/1) ... [2021-08-31 04:00:51,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (1/1) ... [2021-08-31 04:00:51,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-31 04:00:51,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-31 04:00:51,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-31 04:00:51,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-31 04:00:51,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (1/1) ... [2021-08-31 04:00:51,546 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-31 04:00:51,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-31 04:00:51,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-31 04:00:51,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-31 04:00:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-31 04:00:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-31 04:00:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-31 04:00:51,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-31 04:00:52,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-31 04:00:52,169 INFO L299 CfgBuilder]: Removed 202 assume(true) statements. [2021-08-31 04:00:52,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:00:52 BoogieIcfgContainer [2021-08-31 04:00:52,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-31 04:00:52,172 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-31 04:00:52,172 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-31 04:00:52,175 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-31 04:00:52,175 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:00:52,176 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.08 04:00:50" (1/3) ... [2021-08-31 04:00:52,181 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@337bf900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:00:52, skipping insertion in model container [2021-08-31 04:00:52,181 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:00:52,181 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 04:00:51" (2/3) ... [2021-08-31 04:00:52,181 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@337bf900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.08 04:00:52, skipping insertion in model container [2021-08-31 04:00:52,181 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-31 04:00:52,181 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 04:00:52" (3/3) ... [2021-08-31 04:00:52,183 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2021-08-31 04:00:52,217 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-31 04:00:52,218 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-31 04:00:52,218 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-31 04:00:52,218 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-31 04:00:52,218 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-31 04:00:52,218 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-31 04:00:52,218 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-31 04:00:52,219 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-31 04:00:52,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 140 states, 139 states have (on average 1.5107913669064748) internal successors, (210), 139 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:00:52,259 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2021-08-31 04:00:52,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:00:52,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:00:52,266 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 04:00:52,266 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:00:52,266 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-31 04:00:52,267 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 140 states, 139 states have (on average 1.5107913669064748) internal successors, (210), 139 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:00:52,273 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2021-08-31 04:00:52,273 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:00:52,274 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:00:52,274 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 04:00:52,275 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:00:52,281 INFO L791 eck$LassoCheckResult]: Stem: 131#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 62#L-1true havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 53#L643true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 127#L651true main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 50#L607true assume 0 != main_~tmp~3; 3#L580true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, 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; 138#L673-1true [2021-08-31 04:00:52,282 INFO L793 eck$LassoCheckResult]: Loop: 138#L673-1true assume !false; 113#L713true assume test_~splverifierCounter~0 < 4; 16#L714true test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 81#L722true assume !(0 != test_~tmp~5); 54#L722-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 43#L732true assume !(0 != test_~tmp___0~1); 79#L732-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 56#L742true assume 0 != test_~tmp___2~0; 32#L748-1true assume !(0 != ~pumpRunning~0); 22#L778true assume !(0 != ~systemActive~0); 137#L785true havoc __utac_acc__Specification3_spec__1_#t~ret54, __utac_acc__Specification3_spec__1_#t~ret55, __utac_acc__Specification3_spec__1_#t~ret56, __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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 37#L459-2true __utac_acc__Specification3_spec__1_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret54;havoc __utac_acc__Specification3_spec__1_#t~ret54; 58#L667true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 138#L673-1true [2021-08-31 04:00:52,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:52,287 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-08-31 04:00:52,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:52,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681643362] [2021-08-31 04:00:52,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:52,296 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:52,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:52,525 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:00:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:52,660 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:00:52,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:52,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1670509186, now seen corresponding path program 1 times [2021-08-31 04:00:52,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:52,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728551857] [2021-08-31 04:00:52,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:52,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:52,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:52,683 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:00:52,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:52,692 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:00:52,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:52,693 INFO L82 PathProgramCache]: Analyzing trace with hash 43769752, now seen corresponding path program 1 times [2021-08-31 04:00:52,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:52,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239824669] [2021-08-31 04:00:52,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:52,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:00:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:00:52,873 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:00:52,874 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239824669] [2021-08-31 04:00:52,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239824669] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:00:52,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:00:52,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-31 04:00:52,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275372762] [2021-08-31 04:00:52,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:00:53,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-31 04:00:53,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-31 04:00:53,015 INFO L87 Difference]: Start difference. First operand has 140 states, 139 states have (on average 1.5107913669064748) internal successors, (210), 139 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:00:54,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:00:54,032 INFO L93 Difference]: Finished difference Result 330 states and 471 transitions. [2021-08-31 04:00:54,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-31 04:00:54,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 330 states and 471 transitions. [2021-08-31 04:00:54,047 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 213 [2021-08-31 04:00:54,059 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 330 states to 309 states and 450 transitions. [2021-08-31 04:00:54,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 309 [2021-08-31 04:00:54,065 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 309 [2021-08-31 04:00:54,065 INFO L73 IsDeterministic]: Start isDeterministic. Operand 309 states and 450 transitions. [2021-08-31 04:00:54,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:00:54,068 INFO L681 BuchiCegarLoop]: Abstraction has 309 states and 450 transitions. [2021-08-31 04:00:54,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states and 450 transitions. [2021-08-31 04:00:54,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 180. [2021-08-31 04:00:54,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 180 states have (on average 1.45) internal successors, (261), 179 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:00:54,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 261 transitions. [2021-08-31 04:00:54,102 INFO L704 BuchiCegarLoop]: Abstraction has 180 states and 261 transitions. [2021-08-31 04:00:54,102 INFO L587 BuchiCegarLoop]: Abstraction has 180 states and 261 transitions. [2021-08-31 04:00:54,102 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-31 04:00:54,102 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 180 states and 261 transitions. [2021-08-31 04:00:54,104 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 124 [2021-08-31 04:00:54,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:00:54,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:00:54,105 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 04:00:54,105 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-31 04:00:54,105 INFO L791 eck$LassoCheckResult]: Stem: 618#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 580#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 573#L643 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 574#L651 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 570#L607 assume 0 != main_~tmp~3; 488#L580 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, 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; 489#L673-1 [2021-08-31 04:00:54,106 INFO L793 eck$LassoCheckResult]: Loop: 489#L673-1 assume !false; 616#L713 assume test_~splverifierCounter~0 < 4; 514#L714 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 515#L722 assume !(0 != test_~tmp~5); 537#L722-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 555#L732 assume !(0 != test_~tmp___0~1); 556#L732-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 576#L742 assume 0 != test_~tmp___2~0; 541#L748-1 assume !(0 != ~pumpRunning~0); 526#L778 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 527#L836 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret61, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 531#L810-1 assume !(0 == ~pumpRunning~0); 494#L785 havoc __utac_acc__Specification3_spec__1_#t~ret54, __utac_acc__Specification3_spec__1_#t~ret55, __utac_acc__Specification3_spec__1_#t~ret56, __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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 547#L459-2 __utac_acc__Specification3_spec__1_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret54;havoc __utac_acc__Specification3_spec__1_#t~ret54; 548#L667 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 489#L673-1 [2021-08-31 04:00:54,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:54,106 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-08-31 04:00:54,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:54,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549267250] [2021-08-31 04:00:54,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:54,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:54,138 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:00:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:54,198 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:00:54,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:54,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1972735879, now seen corresponding path program 1 times [2021-08-31 04:00:54,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:54,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642510590] [2021-08-31 04:00:54,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:54,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:54,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:00:54,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:00:54,226 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:00:54,226 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642510590] [2021-08-31 04:00:54,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642510590] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:00:54,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:00:54,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:00:54,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295958956] [2021-08-31 04:00:54,232 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-08-31 04:00:54,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:00:54,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-31 04:00:54,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-31 04:00:54,238 INFO L87 Difference]: Start difference. First operand 180 states and 261 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:00:54,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:00:54,517 INFO L93 Difference]: Finished difference Result 225 states and 310 transitions. [2021-08-31 04:00:54,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-31 04:00:54,518 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225 states and 310 transitions. [2021-08-31 04:00:54,520 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2021-08-31 04:00:54,521 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225 states to 225 states and 310 transitions. [2021-08-31 04:00:54,522 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 225 [2021-08-31 04:00:54,522 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 225 [2021-08-31 04:00:54,522 INFO L73 IsDeterministic]: Start isDeterministic. Operand 225 states and 310 transitions. [2021-08-31 04:00:54,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:00:54,523 INFO L681 BuchiCegarLoop]: Abstraction has 225 states and 310 transitions. [2021-08-31 04:00:54,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states and 310 transitions. [2021-08-31 04:00:54,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-08-31 04:00:54,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 225 states have (on average 1.3777777777777778) internal successors, (310), 224 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:00:54,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 310 transitions. [2021-08-31 04:00:54,534 INFO L704 BuchiCegarLoop]: Abstraction has 225 states and 310 transitions. [2021-08-31 04:00:54,534 INFO L587 BuchiCegarLoop]: Abstraction has 225 states and 310 transitions. [2021-08-31 04:00:54,534 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-08-31 04:00:54,534 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states and 310 transitions. [2021-08-31 04:00:54,536 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2021-08-31 04:00:54,536 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:00:54,536 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:00:54,537 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 04:00:54,537 INFO L843 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] [2021-08-31 04:00:54,537 INFO L791 eck$LassoCheckResult]: Stem: 1039#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 993#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 984#L643 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 985#L651 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 981#L607 assume 0 != main_~tmp~3; 899#L580 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, 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; 900#L673-1 [2021-08-31 04:00:54,537 INFO L793 eck$LassoCheckResult]: Loop: 900#L673-1 assume !false; 1034#L713 assume test_~splverifierCounter~0 < 4; 924#L714 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 925#L722 assume !(0 != test_~tmp~5); 947#L722-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 967#L732 assume !(0 != test_~tmp___0~1); 968#L732-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 986#L742 assume 0 != test_~tmp___2~0; 952#L748-1 assume !(0 != ~pumpRunning~0); 936#L778 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 937#L836 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret61, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 940#L810-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret81, 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~5;havoc isHighWaterSensorDry_~retValue_acc~5; 997#L499-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 998#L504-1 isHighWaterLevel_#t~ret81 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret81;havoc isHighWaterLevel_#t~ret81; 1018#L956-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 960#L956-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 927#L962-1 processEnvironment__wrappee__highWaterSensor_#t~ret61 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret61;havoc processEnvironment__wrappee__highWaterSensor_#t~ret61; 928#L814-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 995#L785 havoc __utac_acc__Specification3_spec__1_#t~ret54, __utac_acc__Specification3_spec__1_#t~ret55, __utac_acc__Specification3_spec__1_#t~ret56, __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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1115#L459-2 __utac_acc__Specification3_spec__1_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret54;havoc __utac_acc__Specification3_spec__1_#t~ret54; 990#L667 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 900#L673-1 [2021-08-31 04:00:54,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:54,540 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-08-31 04:00:54,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:54,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293183356] [2021-08-31 04:00:54,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:54,541 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:54,589 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:00:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:54,623 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:00:54,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:54,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1765215501, now seen corresponding path program 1 times [2021-08-31 04:00:54,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:54,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728031681] [2021-08-31 04:00:54,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:54,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:54,629 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:00:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:54,634 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:00:54,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:54,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1309144307, now seen corresponding path program 1 times [2021-08-31 04:00:54,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:54,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99437969] [2021-08-31 04:00:54,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:54,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:54,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-31 04:00:54,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-31 04:00:54,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-31 04:00:54,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99437969] [2021-08-31 04:00:54,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99437969] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-31 04:00:54,694 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-31 04:00:54,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-31 04:00:54,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858935181] [2021-08-31 04:00:54,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-31 04:00:54,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-31 04:00:54,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-31 04:00:54,918 INFO L87 Difference]: Start difference. First operand 225 states and 310 transitions. cyclomatic complexity: 88 Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:00:56,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-31 04:00:56,062 INFO L93 Difference]: Finished difference Result 771 states and 1066 transitions. [2021-08-31 04:00:56,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-31 04:00:56,063 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 771 states and 1066 transitions. [2021-08-31 04:00:56,069 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 575 [2021-08-31 04:00:56,078 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 771 states to 771 states and 1066 transitions. [2021-08-31 04:00:56,079 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 771 [2021-08-31 04:00:56,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 771 [2021-08-31 04:00:56,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 771 states and 1066 transitions. [2021-08-31 04:00:56,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-31 04:00:56,085 INFO L681 BuchiCegarLoop]: Abstraction has 771 states and 1066 transitions. [2021-08-31 04:00:56,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states and 1066 transitions. [2021-08-31 04:00:56,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 444. [2021-08-31 04:00:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 444 states have (on average 1.3558558558558558) internal successors, (602), 443 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-31 04:00:56,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 602 transitions. [2021-08-31 04:00:56,113 INFO L704 BuchiCegarLoop]: Abstraction has 444 states and 602 transitions. [2021-08-31 04:00:56,113 INFO L587 BuchiCegarLoop]: Abstraction has 444 states and 602 transitions. [2021-08-31 04:00:56,114 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-08-31 04:00:56,114 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 444 states and 602 transitions. [2021-08-31 04:00:56,117 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 316 [2021-08-31 04:00:56,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-31 04:00:56,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-31 04:00:56,120 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-08-31 04:00:56,120 INFO L843 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] [2021-08-31 04:00:56,121 INFO L791 eck$LassoCheckResult]: Stem: 2075#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 2009#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 2000#L643 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 2001#L651 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 1997#L607 assume 0 != main_~tmp~3; 1913#L580 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, 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; 1914#L673-1 [2021-08-31 04:00:56,121 INFO L793 eck$LassoCheckResult]: Loop: 1914#L673-1 assume !false; 2239#L713 assume test_~splverifierCounter~0 < 4; 2240#L714 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 2345#L722 assume !(0 != test_~tmp~5); 2343#L722-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 2342#L732 assume !(0 != test_~tmp___0~1); 2340#L732-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 2338#L742 assume 0 != test_~tmp___2~0; 2320#L748-1 assume !(0 != ~pumpRunning~0); 2232#L778 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 2230#L836 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret61, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 2228#L810-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret81, 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~5;havoc isHighWaterSensorDry_~retValue_acc~5; 2226#L499-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 2224#L504-1 isHighWaterLevel_#t~ret81 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret81;havoc isHighWaterLevel_#t~ret81; 2223#L956-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1975#L956-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1942#L962-1 processEnvironment__wrappee__highWaterSensor_#t~ret61 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret61;havoc processEnvironment__wrappee__highWaterSensor_#t~ret61; 1943#L814-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 2011#L785 havoc __utac_acc__Specification3_spec__1_#t~ret54, __utac_acc__Specification3_spec__1_#t~ret55, __utac_acc__Specification3_spec__1_#t~ret56, __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~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 1973#L459-2 __utac_acc__Specification3_spec__1_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret54;havoc __utac_acc__Specification3_spec__1_#t~ret54; 1974#L667 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 2006#L491 __utac_acc__Specification3_spec__1_#t~ret55 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret55;havoc __utac_acc__Specification3_spec__1_#t~ret55; 2241#L673 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 1914#L673-1 [2021-08-31 04:00:56,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:56,122 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-08-31 04:00:56,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:56,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401359344] [2021-08-31 04:00:56,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:56,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:56,171 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:00:56,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:56,219 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:00:56,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:56,220 INFO L82 PathProgramCache]: Analyzing trace with hash 139994341, now seen corresponding path program 1 times [2021-08-31 04:00:56,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:56,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97070507] [2021-08-31 04:00:56,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:56,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:56,228 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:00:56,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:56,238 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:00:56,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-31 04:00:56,241 INFO L82 PathProgramCache]: Analyzing trace with hash 337747583, now seen corresponding path program 1 times [2021-08-31 04:00:56,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-31 04:00:56,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247081216] [2021-08-31 04:00:56,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-31 04:00:56,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-31 04:00:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:56,280 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-31 04:00:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-31 04:00:56,357 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-31 04:01:40,072 WARN L210 SmtUtils]: Spent 43.44s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-08-31 04:02:24,175 WARN L210 SmtUtils]: Spent 21.96s on a formula simplification that was a NOOP. DAG size: 433 [2021-08-31 04:02:24,252 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) at de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData.toString(StatisticsData.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerTimingBenchmark.toString(BuchiAutomizerTimingBenchmark.java:44) at de.uni_freiburg.informatik.ultimate.core.lib.results.StatisticsResult.getLongDescription(StatisticsResult.java:58) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.reportResult(BuchiAutomizerObserver.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:161) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:398) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-31 04:02:24,254 INFO L158 Benchmark]: Toolchain (without parser) took 93326.06ms. Allocated memory was 54.5MB in the beginning and 111.1MB in the end (delta: 56.6MB). Free memory was 30.6MB in the beginning and 33.9MB in the end (delta: -3.3MB). Peak memory consumption was 66.4MB. Max. memory is 16.1GB. [2021-08-31 04:02:24,255 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-31 04:02:24,255 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.70ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.5MB in the beginning and 42.8MB in the end (delta: -12.4MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-08-31 04:02:24,256 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.99ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 38.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-31 04:02:24,256 INFO L158 Benchmark]: Boogie Preprocessor took 52.57ms. Allocated memory is still 67.1MB. Free memory was 38.8MB in the beginning and 36.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-31 04:02:24,257 INFO L158 Benchmark]: RCFGBuilder took 632.99ms. Allocated memory is still 67.1MB. Free memory was 35.8MB in the beginning and 43.6MB in the end (delta: -7.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2021-08-31 04:02:24,258 INFO L158 Benchmark]: BuchiAutomizer took 92081.54ms. Allocated memory was 67.1MB in the beginning and 111.1MB in the end (delta: 44.0MB). Free memory was 43.6MB in the beginning and 33.9MB in the end (delta: 9.6MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. [2021-08-31 04:02:24,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 54.5MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.70ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.5MB in the beginning and 42.8MB in the end (delta: -12.4MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.99ms. Allocated memory is still 67.1MB. Free memory was 42.8MB in the beginning and 38.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.57ms. Allocated memory is still 67.1MB. Free memory was 38.8MB in the beginning and 36.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 632.99ms. Allocated memory is still 67.1MB. Free memory was 35.8MB in the beginning and 43.6MB in the end (delta: -7.7MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 92081.54ms. Allocated memory was 67.1MB in the beginning and 111.1MB in the end (delta: 44.0MB). Free memory was 43.6MB in the beginning and 33.9MB in the end (delta: 9.6MB). Peak memory consumption was 67.3MB. Max. memory is 16.1GB. * 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 6 locations. The remainder module has 444 locations. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6) de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: ClassCastException: class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator cannot be cast to class de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData (de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsAggregator and de.uni_freiburg.informatik.ultimate.util.statistics.StatisticsData are in unnamed module of loader org.eclipse.osgi.internal.loader.EquinoxClassLoader @560348e6): de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoopBenchmark.prettyprintBenchmarkData(BuchiCegarLoopBenchmark.java:178) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-08-31 04:02:24,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...