./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_spec1_product43.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 01b43f7e7ecd5c44c6b49183e9415dee9518d36285d69624307f5a03549da1bb --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:15:30,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:15:30,232 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:15:30,270 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:15:30,271 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:15:30,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:15:30,277 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:15:30,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:15:30,285 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:15:30,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:15:30,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:15:30,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:15:30,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:15:30,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:15:30,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:15:30,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:15:30,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:15:30,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:15:30,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:15:30,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:15:30,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:15:30,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:15:30,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:15:30,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:15:30,317 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:15:30,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:15:30,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:15:30,319 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:15:30,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:15:30,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:15:30,320 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:15:30,321 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:15:30,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:15:30,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:15:30,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:15:30,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:15:30,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:15:30,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:15:30,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:15:30,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:15:30,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:15:30,328 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:15:30,362 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:15:30,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:15:30,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:15:30,363 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:15:30,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:15:30,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:15:30,365 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:15:30,365 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:15:30,365 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:15:30,365 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:15:30,366 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:15:30,366 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:15:30,367 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:15:30,367 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:15:30,367 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:15:30,367 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:15:30,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:15:30,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:15:30,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:15:30,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:15:30,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:15:30,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:15:30,369 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:15:30,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:15:30,370 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:15:30,371 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:15:30,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:15:30,371 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:15:30,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:15:30,372 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:15:30,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:15:30,373 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:15:30,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01b43f7e7ecd5c44c6b49183e9415dee9518d36285d69624307f5a03549da1bb [2022-02-21 04:15:30,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:15:30,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:15:30,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:15:30,659 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:15:30,659 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:15:30,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2022-02-21 04:15:30,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58927c0e2/e3c67b0afc8846aa81e4911497ec93f9/FLAG35c76aafa [2022-02-21 04:15:31,278 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:15:31,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product43.cil.c [2022-02-21 04:15:31,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58927c0e2/e3c67b0afc8846aa81e4911497ec93f9/FLAG35c76aafa [2022-02-21 04:15:31,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58927c0e2/e3c67b0afc8846aa81e4911497ec93f9 [2022-02-21 04:15:31,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:15:31,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:15:31,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:31,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:15:31,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:15:31,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:31" (1/1) ... [2022-02-21 04:15:31,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b66f4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:31, skipping insertion in model container [2022-02-21 04:15:31,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:15:31" (1/1) ... [2022-02-21 04:15:31,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:15:31,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:15:31,969 WARN L230 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_spec1_product43.cil.c[6381,6394] [2022-02-21 04:15:32,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:32,090 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:15:32,160 WARN L230 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_spec1_product43.cil.c[6381,6394] [2022-02-21 04:15:32,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:15:32,211 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:15:32,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32 WrapperNode [2022-02-21 04:15:32,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:15:32,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:32,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:15:32,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:15:32,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (1/1) ... [2022-02-21 04:15:32,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (1/1) ... [2022-02-21 04:15:32,295 INFO L137 Inliner]: procedures = 54, calls = 153, calls flagged for inlining = 50, calls inlined = 58, statements flattened = 459 [2022-02-21 04:15:32,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:15:32,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:15:32,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:15:32,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:15:32,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (1/1) ... [2022-02-21 04:15:32,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (1/1) ... [2022-02-21 04:15:32,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (1/1) ... [2022-02-21 04:15:32,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (1/1) ... [2022-02-21 04:15:32,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (1/1) ... [2022-02-21 04:15:32,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (1/1) ... [2022-02-21 04:15:32,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (1/1) ... [2022-02-21 04:15:32,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:15:32,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:15:32,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:15:32,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:15:32,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (1/1) ... [2022-02-21 04:15:32,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:15:32,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:15:32,378 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) [2022-02-21 04:15:32,382 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 [2022-02-21 04:15:32,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:15:32,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:15:32,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:15:32,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:15:32,517 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:15:32,532 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:15:33,000 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:15:33,006 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:15:33,009 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:15:33,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:33 BoogieIcfgContainer [2022-02-21 04:15:33,013 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:15:33,014 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:15:33,014 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:15:33,017 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:15:33,018 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:33,018 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:15:31" (1/3) ... [2022-02-21 04:15:33,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6944138e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:33, skipping insertion in model container [2022-02-21 04:15:33,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:33,019 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:15:32" (2/3) ... [2022-02-21 04:15:33,019 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6944138e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:15:33, skipping insertion in model container [2022-02-21 04:15:33,019 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:15:33,020 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:33" (3/3) ... [2022-02-21 04:15:33,021 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product43.cil.c [2022-02-21 04:15:33,072 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:15:33,072 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:15:33,072 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:15:33,073 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:15:33,073 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:15:33,073 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:15:33,073 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:15:33,073 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:15:33,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 121 states, 120 states have (on average 1.3666666666666667) internal successors, (164), 120 states have internal predecessors, (164), 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) [2022-02-21 04:15:33,154 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 78 [2022-02-21 04:15:33,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:33,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:33,161 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:33,161 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:33,162 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:15:33,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 121 states, 120 states have (on average 1.3666666666666667) internal successors, (164), 120 states have internal predecessors, (164), 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) [2022-02-21 04:15:33,188 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 78 [2022-02-21 04:15:33,188 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:33,188 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:33,189 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:33,190 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:33,199 INFO L791 eck$LassoCheckResult]: Stem: 111#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 42#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 28#L933true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 88#L926true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 95#L941true main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 43#L531true assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 35#L505true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 40#L354-2true [2022-02-21 04:15:33,200 INFO L793 eck$LassoCheckResult]: Loop: 40#L354-2true assume !false; 37#L355true assume test_~splverifierCounter~0#1 < 4; 85#L356true test_~tmp~3#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 116#L364true assume !(0 != test_~tmp~3#1); 6#L364-2true test_~tmp___0~1#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 123#L374true assume !(0 != test_~tmp___0~1#1); 24#L374-2true test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 120#L384true assume 0 != test_~tmp___2~0#1; 110#L390-2true assume { :begin_inline_timeShift } true; 18#L165true assume !(0 != ~pumpRunning~0); 31#L165-2true assume !(0 != ~systemActive~0); 55#L172-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_#t~ret26#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 77#L100-1true __utac_acc__Specification1_spec__1_#t~ret25#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret25#1;havoc __utac_acc__Specification1_spec__1_#t~ret25#1; 101#L428true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 78#L428-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 92#L182true assume { :end_inline_timeShift } true; 40#L354-2true [2022-02-21 04:15:33,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:33,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:15:33,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:33,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381109019] [2022-02-21 04:15:33,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:33,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:33,362 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:33,441 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:33,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:33,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1131866300, now seen corresponding path program 1 times [2022-02-21 04:15:33,446 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:33,447 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981576251] [2022-02-21 04:15:33,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:33,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:33,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:33,474 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:33,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:33,486 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:33,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:33,488 INFO L85 PathProgramCache]: Analyzing trace with hash 223552776, now seen corresponding path program 1 times [2022-02-21 04:15:33,489 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:33,489 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717753706] [2022-02-21 04:15:33,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:33,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:33,643 INFO L290 TraceCheckUtils]: 0: Hoare triple {129#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; {131#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:33,644 INFO L290 TraceCheckUtils]: 1: Hoare triple {131#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; {131#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:33,645 INFO L290 TraceCheckUtils]: 2: Hoare triple {131#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {131#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:15:33,645 INFO L290 TraceCheckUtils]: 3: Hoare triple {131#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {132#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:15:33,646 INFO L290 TraceCheckUtils]: 4: Hoare triple {132#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret27#1;havoc main_#t~ret27#1; {133#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} is VALID [2022-02-21 04:15:33,647 INFO L290 TraceCheckUtils]: 5: Hoare triple {133#(= |ULTIMATE.start_main_~tmp~5#1| ~systemActive~0)} assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,647 INFO L290 TraceCheckUtils]: 6: Hoare triple {134#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,648 INFO L290 TraceCheckUtils]: 7: Hoare triple {134#(not (= 0 ~systemActive~0))} assume !false; {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,648 INFO L290 TraceCheckUtils]: 8: Hoare triple {134#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,649 INFO L290 TraceCheckUtils]: 9: Hoare triple {134#(not (= 0 ~systemActive~0))} test_~tmp~3#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,650 INFO L290 TraceCheckUtils]: 10: Hoare triple {134#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~3#1); {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,650 INFO L290 TraceCheckUtils]: 11: Hoare triple {134#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,651 INFO L290 TraceCheckUtils]: 12: Hoare triple {134#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,651 INFO L290 TraceCheckUtils]: 13: Hoare triple {134#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,652 INFO L290 TraceCheckUtils]: 14: Hoare triple {134#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,653 INFO L290 TraceCheckUtils]: 15: Hoare triple {134#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,653 INFO L290 TraceCheckUtils]: 16: Hoare triple {134#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {134#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:15:33,654 INFO L290 TraceCheckUtils]: 17: Hoare triple {134#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {130#false} is VALID [2022-02-21 04:15:33,654 INFO L290 TraceCheckUtils]: 18: Hoare triple {130#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_#t~ret26#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {130#false} is VALID [2022-02-21 04:15:33,654 INFO L290 TraceCheckUtils]: 19: Hoare triple {130#false} __utac_acc__Specification1_spec__1_#t~ret25#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret25#1;havoc __utac_acc__Specification1_spec__1_#t~ret25#1; {130#false} is VALID [2022-02-21 04:15:33,655 INFO L290 TraceCheckUtils]: 20: Hoare triple {130#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); {130#false} is VALID [2022-02-21 04:15:33,655 INFO L290 TraceCheckUtils]: 21: Hoare triple {130#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {130#false} is VALID [2022-02-21 04:15:33,655 INFO L290 TraceCheckUtils]: 22: Hoare triple {130#false} assume { :end_inline_timeShift } true; {130#false} is VALID [2022-02-21 04:15:33,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:33,656 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:33,657 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717753706] [2022-02-21 04:15:33,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717753706] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:33,658 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:33,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:15:33,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254307530] [2022-02-21 04:15:33,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:33,790 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:33,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:15:33,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:15:33,822 INFO L87 Difference]: Start difference. First operand has 121 states, 120 states have (on average 1.3666666666666667) internal successors, (164), 120 states have internal predecessors, (164), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-02-21 04:15:34,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:34,614 INFO L93 Difference]: Finished difference Result 293 states and 377 transitions. [2022-02-21 04:15:34,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-21 04:15:34,615 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2022-02-21 04:15:34,642 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:34,650 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 293 states and 377 transitions. [2022-02-21 04:15:34,674 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 187 [2022-02-21 04:15:34,692 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 293 states to 263 states and 347 transitions. [2022-02-21 04:15:34,693 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 263 [2022-02-21 04:15:34,695 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 263 [2022-02-21 04:15:34,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 347 transitions. [2022-02-21 04:15:34,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:34,702 INFO L681 BuchiCegarLoop]: Abstraction has 263 states and 347 transitions. [2022-02-21 04:15:34,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 347 transitions. [2022-02-21 04:15:34,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 160. [2022-02-21 04:15:34,731 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:34,732 INFO L82 GeneralOperation]: Start isEquivalent. First operand 263 states and 347 transitions. Second operand has 160 states, 160 states have (on average 1.31875) internal successors, (211), 159 states have internal predecessors, (211), 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) [2022-02-21 04:15:34,733 INFO L74 IsIncluded]: Start isIncluded. First operand 263 states and 347 transitions. Second operand has 160 states, 160 states have (on average 1.31875) internal successors, (211), 159 states have internal predecessors, (211), 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) [2022-02-21 04:15:34,735 INFO L87 Difference]: Start difference. First operand 263 states and 347 transitions. Second operand has 160 states, 160 states have (on average 1.31875) internal successors, (211), 159 states have internal predecessors, (211), 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) [2022-02-21 04:15:34,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:34,745 INFO L93 Difference]: Finished difference Result 263 states and 347 transitions. [2022-02-21 04:15:34,745 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 347 transitions. [2022-02-21 04:15:34,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:34,747 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:34,748 INFO L74 IsIncluded]: Start isIncluded. First operand has 160 states, 160 states have (on average 1.31875) internal successors, (211), 159 states have internal predecessors, (211), 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 263 states and 347 transitions. [2022-02-21 04:15:34,748 INFO L87 Difference]: Start difference. First operand has 160 states, 160 states have (on average 1.31875) internal successors, (211), 159 states have internal predecessors, (211), 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 263 states and 347 transitions. [2022-02-21 04:15:34,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:34,758 INFO L93 Difference]: Finished difference Result 263 states and 347 transitions. [2022-02-21 04:15:34,758 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 347 transitions. [2022-02-21 04:15:34,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:34,759 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:34,759 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:34,760 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:34,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 160 states have (on average 1.31875) internal successors, (211), 159 states have internal predecessors, (211), 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) [2022-02-21 04:15:34,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 211 transitions. [2022-02-21 04:15:34,766 INFO L704 BuchiCegarLoop]: Abstraction has 160 states and 211 transitions. [2022-02-21 04:15:34,766 INFO L587 BuchiCegarLoop]: Abstraction has 160 states and 211 transitions. [2022-02-21 04:15:34,766 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:15:34,766 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 211 transitions. [2022-02-21 04:15:34,767 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 114 [2022-02-21 04:15:34,767 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:34,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:34,768 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:34,768 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] [2022-02-21 04:15:34,768 INFO L791 eck$LassoCheckResult]: Stem: 538#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 485#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 466#L933 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 467#L926 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 530#L941 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 486#L531 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 477#L505 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 478#L354-2 [2022-02-21 04:15:34,769 INFO L793 eck$LassoCheckResult]: Loop: 478#L354-2 assume !false; 479#L355 assume test_~splverifierCounter~0#1 < 4; 480#L356 test_~tmp~3#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 527#L364 assume !(0 != test_~tmp~3#1); 437#L364-2 test_~tmp___0~1#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 438#L374 assume !(0 != test_~tmp___0~1#1); 446#L374-2 test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 465#L384 assume 0 != test_~tmp___2~0#1; 529#L390-2 assume { :begin_inline_timeShift } true; 458#L165 assume !(0 != ~pumpRunning~0); 459#L165-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 472#L197 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 487#L189-1 assume { :end_inline_processEnvironment__wrappee__base } true; 452#L197-1 assume { :end_inline_processEnvironment } true; 460#L172-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_#t~ret26#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 500#L100-1 __utac_acc__Specification1_spec__1_#t~ret25#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret25#1;havoc __utac_acc__Specification1_spec__1_#t~ret25#1; 521#L428 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 522#L428-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 523#L182 assume { :end_inline_timeShift } true; 478#L354-2 [2022-02-21 04:15:34,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:34,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:15:34,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:34,770 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968289362] [2022-02-21 04:15:34,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:34,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:34,783 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:34,796 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:34,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:34,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1955411726, now seen corresponding path program 1 times [2022-02-21 04:15:34,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:34,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147193392] [2022-02-21 04:15:34,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:34,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:34,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:15:34,815 INFO L290 TraceCheckUtils]: 0: Hoare triple {1123#true} assume !false; {1123#true} is VALID [2022-02-21 04:15:34,815 INFO L290 TraceCheckUtils]: 1: Hoare triple {1123#true} assume test_~splverifierCounter~0#1 < 4; {1123#true} is VALID [2022-02-21 04:15:34,816 INFO L290 TraceCheckUtils]: 2: Hoare triple {1123#true} test_~tmp~3#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; {1123#true} is VALID [2022-02-21 04:15:34,816 INFO L290 TraceCheckUtils]: 3: Hoare triple {1123#true} assume !(0 != test_~tmp~3#1); {1123#true} is VALID [2022-02-21 04:15:34,816 INFO L290 TraceCheckUtils]: 4: Hoare triple {1123#true} test_~tmp___0~1#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; {1123#true} is VALID [2022-02-21 04:15:34,816 INFO L290 TraceCheckUtils]: 5: Hoare triple {1123#true} assume !(0 != test_~tmp___0~1#1); {1123#true} is VALID [2022-02-21 04:15:34,817 INFO L290 TraceCheckUtils]: 6: Hoare triple {1123#true} test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; {1123#true} is VALID [2022-02-21 04:15:34,817 INFO L290 TraceCheckUtils]: 7: Hoare triple {1123#true} assume 0 != test_~tmp___2~0#1; {1123#true} is VALID [2022-02-21 04:15:34,817 INFO L290 TraceCheckUtils]: 8: Hoare triple {1123#true} assume { :begin_inline_timeShift } true; {1123#true} is VALID [2022-02-21 04:15:34,818 INFO L290 TraceCheckUtils]: 9: Hoare triple {1123#true} assume !(0 != ~pumpRunning~0); {1125#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:34,818 INFO L290 TraceCheckUtils]: 10: Hoare triple {1125#(= ~pumpRunning~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; {1125#(= ~pumpRunning~0 0)} is VALID [2022-02-21 04:15:34,818 INFO L290 TraceCheckUtils]: 11: Hoare triple {1125#(= ~pumpRunning~0 0)} assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {1124#false} is VALID [2022-02-21 04:15:34,819 INFO L290 TraceCheckUtils]: 12: Hoare triple {1124#false} assume { :end_inline_processEnvironment__wrappee__base } true; {1124#false} is VALID [2022-02-21 04:15:34,819 INFO L290 TraceCheckUtils]: 13: Hoare triple {1124#false} assume { :end_inline_processEnvironment } true; {1124#false} is VALID [2022-02-21 04:15:34,819 INFO L290 TraceCheckUtils]: 14: Hoare triple {1124#false} assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_#t~ret26#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; {1124#false} is VALID [2022-02-21 04:15:34,819 INFO L290 TraceCheckUtils]: 15: Hoare triple {1124#false} __utac_acc__Specification1_spec__1_#t~ret25#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret25#1;havoc __utac_acc__Specification1_spec__1_#t~ret25#1; {1124#false} is VALID [2022-02-21 04:15:34,820 INFO L290 TraceCheckUtils]: 16: Hoare triple {1124#false} assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); {1124#false} is VALID [2022-02-21 04:15:34,820 INFO L290 TraceCheckUtils]: 17: Hoare triple {1124#false} assume { :end_inline___utac_acc__Specification1_spec__1 } true; {1124#false} is VALID [2022-02-21 04:15:34,820 INFO L290 TraceCheckUtils]: 18: Hoare triple {1124#false} assume { :end_inline_timeShift } true; {1124#false} is VALID [2022-02-21 04:15:34,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:15:34,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:15:34,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147193392] [2022-02-21 04:15:34,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147193392] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:15:34,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:15:34,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-21 04:15:34,822 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676520245] [2022-02-21 04:15:34,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:15:34,822 INFO L808 eck$LassoCheckResult]: loop already infeasible [2022-02-21 04:15:34,823 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:15:34,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-21 04:15:34,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-21 04:15:34,824 INFO L87 Difference]: Start difference. First operand 160 states and 211 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2022-02-21 04:15:35,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:35,012 INFO L93 Difference]: Finished difference Result 210 states and 265 transitions. [2022-02-21 04:15:35,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-21 04:15:35,012 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 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) [2022-02-21 04:15:35,030 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:15:35,031 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 210 states and 265 transitions. [2022-02-21 04:15:35,037 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 153 [2022-02-21 04:15:35,045 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 210 states to 210 states and 265 transitions. [2022-02-21 04:15:35,046 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2022-02-21 04:15:35,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 210 [2022-02-21 04:15:35,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 210 states and 265 transitions. [2022-02-21 04:15:35,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:15:35,048 INFO L681 BuchiCegarLoop]: Abstraction has 210 states and 265 transitions. [2022-02-21 04:15:35,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states and 265 transitions. [2022-02-21 04:15:35,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-02-21 04:15:35,067 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:15:35,067 INFO L82 GeneralOperation]: Start isEquivalent. First operand 210 states and 265 transitions. Second operand has 210 states, 210 states have (on average 1.2619047619047619) internal successors, (265), 209 states have internal predecessors, (265), 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) [2022-02-21 04:15:35,068 INFO L74 IsIncluded]: Start isIncluded. First operand 210 states and 265 transitions. Second operand has 210 states, 210 states have (on average 1.2619047619047619) internal successors, (265), 209 states have internal predecessors, (265), 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) [2022-02-21 04:15:35,068 INFO L87 Difference]: Start difference. First operand 210 states and 265 transitions. Second operand has 210 states, 210 states have (on average 1.2619047619047619) internal successors, (265), 209 states have internal predecessors, (265), 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) [2022-02-21 04:15:35,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:35,073 INFO L93 Difference]: Finished difference Result 210 states and 265 transitions. [2022-02-21 04:15:35,074 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 265 transitions. [2022-02-21 04:15:35,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:35,074 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:35,075 INFO L74 IsIncluded]: Start isIncluded. First operand has 210 states, 210 states have (on average 1.2619047619047619) internal successors, (265), 209 states have internal predecessors, (265), 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 210 states and 265 transitions. [2022-02-21 04:15:35,076 INFO L87 Difference]: Start difference. First operand has 210 states, 210 states have (on average 1.2619047619047619) internal successors, (265), 209 states have internal predecessors, (265), 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 210 states and 265 transitions. [2022-02-21 04:15:35,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:15:35,081 INFO L93 Difference]: Finished difference Result 210 states and 265 transitions. [2022-02-21 04:15:35,081 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 265 transitions. [2022-02-21 04:15:35,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:15:35,081 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:15:35,081 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:15:35,082 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:15:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 210 states have (on average 1.2619047619047619) internal successors, (265), 209 states have internal predecessors, (265), 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) [2022-02-21 04:15:35,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 265 transitions. [2022-02-21 04:15:35,087 INFO L704 BuchiCegarLoop]: Abstraction has 210 states and 265 transitions. [2022-02-21 04:15:35,087 INFO L587 BuchiCegarLoop]: Abstraction has 210 states and 265 transitions. [2022-02-21 04:15:35,087 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:15:35,087 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 210 states and 265 transitions. [2022-02-21 04:15:35,088 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 153 [2022-02-21 04:15:35,089 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:15:35,089 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:15:35,089 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:15:35,089 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, 1, 1] [2022-02-21 04:15:35,090 INFO L791 eck$LassoCheckResult]: Stem: 1458#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1393#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~6#1, main_~tmp~5#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~5#1;assume { :begin_inline_select_helpers } true; 1372#L933 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1373#L926 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; 1448#L941 main_#t~ret27#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret27#1;havoc main_#t~ret27#1; 1394#L531 assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true; 1384#L505 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet21#1, test_#t~nondet22#1, test_#t~nondet23#1, test_#t~nondet24#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1385#L354-2 [2022-02-21 04:15:35,094 INFO L793 eck$LassoCheckResult]: Loop: 1385#L354-2 assume !false; 1386#L355 assume test_~splverifierCounter~0#1 < 4; 1387#L356 test_~tmp~3#1 := test_#t~nondet21#1;havoc test_#t~nondet21#1; 1445#L364 assume !(0 != test_~tmp~3#1); 1341#L364-2 test_~tmp___0~1#1 := test_#t~nondet22#1;havoc test_#t~nondet22#1; 1342#L374 assume !(0 != test_~tmp___0~1#1); 1350#L374-2 test_~tmp___2~0#1 := test_#t~nondet23#1;havoc test_#t~nondet23#1; 1517#L384 assume 0 != test_~tmp___2~0#1; 1515#L390-2 assume { :begin_inline_timeShift } true; 1514#L165 assume !(0 != ~pumpRunning~0); 1378#L165-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret9#1, processEnvironment_~tmp~0#1;havoc processEnvironment_~tmp~0#1; 1379#L197 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret20#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~2#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~2#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1421#L140 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1422#L145 isHighWaterLevel_#t~ret20#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~2#1 := isHighWaterLevel_#t~ret20#1;havoc isHighWaterLevel_#t~ret20#1; 1351#L317 assume 0 != isHighWaterLevel_~tmp~2#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1352#L317-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1345#L323 processEnvironment_#t~ret9#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~0#1 := processEnvironment_#t~ret9#1;havoc processEnvironment_#t~ret9#1; 1346#L201 assume !(0 != processEnvironment_~tmp~0#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1429#L189 assume { :end_inline_processEnvironment__wrappee__base } true; 1356#L197-1 assume { :end_inline_processEnvironment } true; 1364#L172-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret25#1, __utac_acc__Specification1_spec__1_#t~ret26#1, __utac_acc__Specification1_spec__1_~tmp~4#1, __utac_acc__Specification1_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification1_spec__1_~tmp~4#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~2#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1412#L100-1 __utac_acc__Specification1_spec__1_#t~ret25#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~4#1 := __utac_acc__Specification1_spec__1_#t~ret25#1;havoc __utac_acc__Specification1_spec__1_#t~ret25#1; 1438#L428 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~4#1); 1439#L428-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 1440#L182 assume { :end_inline_timeShift } true; 1385#L354-2 [2022-02-21 04:15:35,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:35,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:15:35,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:35,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267923405] [2022-02-21 04:15:35,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:35,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:35,111 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:35,122 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:35,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:35,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1963905610, now seen corresponding path program 1 times [2022-02-21 04:15:35,123 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:35,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981849431] [2022-02-21 04:15:35,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:35,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:35,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:35,130 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:35,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:35,135 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:35,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:15:35,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1080056946, now seen corresponding path program 1 times [2022-02-21 04:15:35,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:15:35,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951855919] [2022-02-21 04:15:35,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:15:35,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:15:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:35,152 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:15:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:15:35,180 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:15:38,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:15:38 BoogieIcfgContainer [2022-02-21 04:15:38,077 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:15:38,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:15:38,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:15:38,078 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:15:38,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:15:33" (3/4) ... [2022-02-21 04:15:38,081 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:15:38,122 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:15:38,122 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:15:38,123 INFO L158 Benchmark]: Toolchain (without parser) took 6417.48ms. Allocated memory was 88.1MB in the beginning and 138.4MB in the end (delta: 50.3MB). Free memory was 52.7MB in the beginning and 72.7MB in the end (delta: -20.0MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:38,124 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 58.0MB in the beginning and 58.0MB in the end (delta: 23.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:15:38,124 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.67ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 52.6MB in the beginning and 79.3MB in the end (delta: -26.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-21 04:15:38,125 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.42ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 75.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:15:38,125 INFO L158 Benchmark]: Boogie Preprocessor took 43.07ms. Allocated memory is still 115.3MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:38,126 INFO L158 Benchmark]: RCFGBuilder took 673.15ms. Allocated memory is still 115.3MB. Free memory was 73.6MB in the beginning and 51.4MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-02-21 04:15:38,126 INFO L158 Benchmark]: BuchiAutomizer took 5063.36ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 51.4MB in the beginning and 75.8MB in the end (delta: -24.4MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2022-02-21 04:15:38,127 INFO L158 Benchmark]: Witness Printer took 44.74ms. Allocated memory is still 138.4MB. Free memory was 75.8MB in the beginning and 72.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:15:38,129 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 88.1MB. Free memory was 58.0MB in the beginning and 58.0MB in the end (delta: 23.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.67ms. Allocated memory was 88.1MB in the beginning and 115.3MB in the end (delta: 27.3MB). Free memory was 52.6MB in the beginning and 79.3MB in the end (delta: -26.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.42ms. Allocated memory is still 115.3MB. Free memory was 79.3MB in the beginning and 75.7MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.07ms. Allocated memory is still 115.3MB. Free memory was 75.7MB in the beginning and 73.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 673.15ms. Allocated memory is still 115.3MB. Free memory was 73.6MB in the beginning and 51.4MB in the end (delta: 22.2MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 5063.36ms. Allocated memory was 115.3MB in the beginning and 138.4MB in the end (delta: 23.1MB). Free memory was 51.4MB in the beginning and 75.8MB in the end (delta: -24.4MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * Witness Printer took 44.74ms. Allocated memory is still 138.4MB. Free memory was 75.8MB in the beginning and 72.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 210 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 103 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 210 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 677 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 677 mSDsluCounter, 1095 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 805 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 64 IncrementalHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 290 mSDtfsCounter, 64 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 354]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, tmp___0=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1932e389=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, tmp=1, \result=0, retValue_acc=0, \result=1, \result=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@421de3f0=0, tmp___2=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46c3a211=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ab6073d=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c5f98c1=0, cleanupTimeShifts=4, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19c51a84=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@96026d9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dce96d7=0, \result=0, tmp=0, head=0, retValue_acc=0, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36d77e17=0, \result=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 354]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L157] int pumpRunning = 0; [L158] int systemActive = 1; [L446] int cleanupTimeShifts = 4; [L714] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L522] int retValue_acc ; [L523] int tmp ; [L527] FCALL select_helpers() [L528] FCALL select_features() [L529] CALL, EXPR valid_product() [L937] int retValue_acc ; [L940] retValue_acc = 1 [L941] return (retValue_acc); [L529] RET, EXPR valid_product() [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L533] FCALL setup() [L534] CALL runTest() [L513] CALL test() [L345] int splverifierCounter ; [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L349] int tmp___2 ; [L352] splverifierCounter = 0 Loop: [L354] COND TRUE 1 [L356] COND TRUE splverifierCounter < 4 [L362] tmp = __VERIFIER_nondet_int() [L364] COND FALSE !(\read(tmp)) [L372] tmp___0 = __VERIFIER_nondet_int() [L374] COND FALSE !(\read(tmp___0)) [L382] tmp___2 = __VERIFIER_nondet_int() [L384] COND TRUE \read(tmp___2) [L399] CALL timeShift() [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L174] CALL processEnvironment() [L194] int tmp ; [L197] COND TRUE ! pumpRunning [L199] CALL, EXPR isHighWaterLevel() [L309] int retValue_acc ; [L310] int tmp ; [L311] int tmp___0 ; [L315] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L315] RET, EXPR isHighWaterSensorDry() [L315] tmp = isHighWaterSensorDry() [L317] COND TRUE \read(tmp) [L318] tmp___0 = 0 [L322] retValue_acc = tmp___0 [L323] return (retValue_acc); [L199] RET, EXPR isHighWaterLevel() [L199] tmp = isHighWaterLevel() [L201] COND FALSE !(\read(tmp)) [L207] FCALL processEnvironment__wrappee__base() [L174] RET processEnvironment() [L180] CALL __utac_acc__Specification1_spec__1() [L421] int tmp ; [L422] int tmp___0 ; [L426] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L426] RET, EXPR isMethaneLevelCritical() [L426] tmp = isMethaneLevelCritical() [L428] COND FALSE !(\read(tmp)) [L180] RET __utac_acc__Specification1_spec__1() [L399] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:15:38,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)