./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product36.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 a02c09de3ac56c41127e71d631df699be80ebdf5846a7586536864de14f59a0e --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 23:38:34,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 23:38:34,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 23:38:34,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 23:38:34,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 23:38:34,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 23:38:34,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 23:38:34,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 23:38:34,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 23:38:34,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 23:38:34,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 23:38:34,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 23:38:34,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 23:38:34,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 23:38:34,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 23:38:34,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 23:38:34,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 23:38:34,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 23:38:34,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 23:38:34,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 23:38:34,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 23:38:34,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 23:38:34,371 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 23:38:34,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 23:38:34,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 23:38:34,375 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 23:38:34,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 23:38:34,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 23:38:34,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 23:38:34,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 23:38:34,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 23:38:34,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 23:38:34,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 23:38:34,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 23:38:34,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 23:38:34,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 23:38:34,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 23:38:34,383 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 23:38:34,383 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 23:38:34,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 23:38:34,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 23:38:34,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-14 23:38:34,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 23:38:34,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 23:38:34,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 23:38:34,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 23:38:34,420 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 23:38:34,420 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 23:38:34,421 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 23:38:34,421 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-14 23:38:34,421 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-14 23:38:34,421 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-14 23:38:34,422 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-14 23:38:34,422 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-14 23:38:34,422 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-14 23:38:34,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 23:38:34,423 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 23:38:34,423 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 23:38:34,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 23:38:34,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 23:38:34,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 23:38:34,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-14 23:38:34,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-14 23:38:34,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-14 23:38:34,424 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 23:38:34,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 23:38:34,425 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-14 23:38:34,426 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 23:38:34,426 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-14 23:38:34,426 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 23:38:34,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 23:38:34,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 23:38:34,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 23:38:34,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 23:38:34,428 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-14 23:38:34,428 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a02c09de3ac56c41127e71d631df699be80ebdf5846a7586536864de14f59a0e [2021-12-14 23:38:34,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 23:38:34,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 23:38:34,695 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 23:38:34,697 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 23:38:34,698 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 23:38:34,699 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2021-12-14 23:38:34,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89547eb67/bca031c7f46e4e9da693a6d6e0afa780/FLAG6b34d814e [2021-12-14 23:38:35,334 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 23:38:35,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product36.cil.c [2021-12-14 23:38:35,352 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89547eb67/bca031c7f46e4e9da693a6d6e0afa780/FLAG6b34d814e [2021-12-14 23:38:35,664 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89547eb67/bca031c7f46e4e9da693a6d6e0afa780 [2021-12-14 23:38:35,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 23:38:35,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 23:38:35,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 23:38:35,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 23:38:35,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 23:38:35,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:38:35" (1/1) ... [2021-12-14 23:38:35,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69688ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:35, skipping insertion in model container [2021-12-14 23:38:35,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 11:38:35" (1/1) ... [2021-12-14 23:38:35,684 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 23:38:35,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 23:38:35,910 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_spec3_product36.cil.c[1605,1618] [2021-12-14 23:38:36,178 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:38:36,192 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 23:38:36,214 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_spec3_product36.cil.c[1605,1618] [2021-12-14 23:38:36,292 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 23:38:36,315 INFO L208 MainTranslator]: Completed translation [2021-12-14 23:38:36,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36 WrapperNode [2021-12-14 23:38:36,317 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 23:38:36,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 23:38:36,319 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 23:38:36,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 23:38:36,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (1/1) ... [2021-12-14 23:38:36,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (1/1) ... [2021-12-14 23:38:36,388 INFO L137 Inliner]: procedures = 54, calls = 153, calls flagged for inlining = 50, calls inlined = 53, statements flattened = 432 [2021-12-14 23:38:36,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 23:38:36,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 23:38:36,392 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 23:38:36,392 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 23:38:36,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (1/1) ... [2021-12-14 23:38:36,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (1/1) ... [2021-12-14 23:38:36,402 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (1/1) ... [2021-12-14 23:38:36,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (1/1) ... [2021-12-14 23:38:36,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (1/1) ... [2021-12-14 23:38:36,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (1/1) ... [2021-12-14 23:38:36,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (1/1) ... [2021-12-14 23:38:36,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 23:38:36,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 23:38:36,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 23:38:36,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 23:38:36,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (1/1) ... [2021-12-14 23:38:36,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-14 23:38:36,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 23:38:36,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-12-14 23:38:36,470 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-12-14 23:38:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 23:38:36,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 23:38:36,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 23:38:36,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 23:38:36,607 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 23:38:36,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 23:38:36,984 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 23:38:37,013 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 23:38:37,013 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 23:38:37,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:37 BoogieIcfgContainer [2021-12-14 23:38:37,015 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 23:38:37,016 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-14 23:38:37,016 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-14 23:38:37,020 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-14 23:38:37,021 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:37,021 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.12 11:38:35" (1/3) ... [2021-12-14 23:38:37,022 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72f84535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:38:37, skipping insertion in model container [2021-12-14 23:38:37,022 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:37,022 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 11:38:36" (2/3) ... [2021-12-14 23:38:37,022 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@72f84535 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.12 11:38:37, skipping insertion in model container [2021-12-14 23:38:37,023 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-14 23:38:37,023 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:37" (3/3) ... [2021-12-14 23:38:37,024 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product36.cil.c [2021-12-14 23:38:37,085 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-14 23:38:37,085 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-14 23:38:37,085 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-14 23:38:37,085 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-14 23:38:37,085 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-14 23:38:37,085 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-14 23:38:37,086 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-14 23:38:37,086 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-14 23:38:37,107 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.382608695652174) internal successors, (159), 115 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:37,138 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-12-14 23:38:37,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:37,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:37,145 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:37,146 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:37,146 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-14 23:38:37,146 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.382608695652174) internal successors, (159), 115 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:37,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-12-14 23:38:37,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:37,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:37,152 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:37,153 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:37,157 INFO L791 eck$LassoCheckResult]: Stem: 102#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 35#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 83#L900true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 77#L893true 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; 72#L908true main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 97#L864true assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 27#L838true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 116#L625-2true [2021-12-14 23:38:37,158 INFO L793 eck$LassoCheckResult]: Loop: 116#L625-2true assume !false; 69#L626true assume test_~splverifierCounter~0#1 < 4; 53#L627true test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 22#L635true assume !(0 != test_~tmp~5#1); 51#L635-2true test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 118#L645true assume !(0 != test_~tmp___0~1#1); 55#L645-2true test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 29#L655true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 16#L663true assume !(0 != test_~tmp___1~0#1); 24#L663-2true assume { :begin_inline_timeShift } true; 89#L444true assume !(0 != ~pumpRunning~0); 19#L444-2true assume !(0 != ~systemActive~0); 71#L451-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 62#L728true __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 106#L922true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 93#L928-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 5#L461true assume { :end_inline_timeShift } true; 116#L625-2true [2021-12-14 23:38:37,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:37,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-14 23:38:37,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:37,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116563694] [2021-12-14 23:38:37,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:37,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:37,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:37,270 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:37,326 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:37,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:37,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1528738337, now seen corresponding path program 1 times [2021-12-14 23:38:37,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:37,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383048986] [2021-12-14 23:38:37,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:37,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:37,356 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:37,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:37,363 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:37,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:37,365 INFO L85 PathProgramCache]: Analyzing trace with hash 597056733, now seen corresponding path program 1 times [2021-12-14 23:38:37,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:37,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408291380] [2021-12-14 23:38:37,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:37,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:37,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:38:37,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:38:37,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:38:37,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408291380] [2021-12-14 23:38:37,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408291380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:38:37,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:38:37,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 23:38:37,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525216283] [2021-12-14 23:38:37,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:38:37,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:38:37,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 23:38:37,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-14 23:38:37,777 INFO L87 Difference]: Start difference. First operand has 116 states, 115 states have (on average 1.382608695652174) internal successors, (159), 115 states have internal predecessors, (159), 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 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:38,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:38:38,027 INFO L93 Difference]: Finished difference Result 393 states and 512 transitions. [2021-12-14 23:38:38,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 23:38:38,033 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 393 states and 512 transitions. [2021-12-14 23:38:38,049 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 254 [2021-12-14 23:38:38,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 393 states to 353 states and 472 transitions. [2021-12-14 23:38:38,078 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 353 [2021-12-14 23:38:38,080 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 353 [2021-12-14 23:38:38,081 INFO L73 IsDeterministic]: Start isDeterministic. Operand 353 states and 472 transitions. [2021-12-14 23:38:38,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:38:38,087 INFO L681 BuchiCegarLoop]: Abstraction has 353 states and 472 transitions. [2021-12-14 23:38:38,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states and 472 transitions. [2021-12-14 23:38:38,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 161. [2021-12-14 23:38:38,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 161 states have (on average 1.3354037267080745) internal successors, (215), 160 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 215 transitions. [2021-12-14 23:38:38,161 INFO L704 BuchiCegarLoop]: Abstraction has 161 states and 215 transitions. [2021-12-14 23:38:38,162 INFO L587 BuchiCegarLoop]: Abstraction has 161 states and 215 transitions. [2021-12-14 23:38:38,162 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-14 23:38:38,162 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 215 transitions. [2021-12-14 23:38:38,168 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 115 [2021-12-14 23:38:38,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:38,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:38,169 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:38,169 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] [2021-12-14 23:38:38,169 INFO L791 eck$LassoCheckResult]: Stem: 629#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 581#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 582#L900 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 618#L893 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; 615#L908 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 616#L864 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 569#L838 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 530#L625-2 [2021-12-14 23:38:38,170 INFO L793 eck$LassoCheckResult]: Loop: 530#L625-2 assume !false; 614#L626 assume test_~splverifierCounter~0#1 < 4; 597#L627 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 563#L635 assume !(0 != test_~tmp~5#1); 564#L635-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 596#L645 assume !(0 != test_~tmp___0~1#1); 532#L645-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 572#L655 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 549#L663 assume !(0 != test_~tmp___1~0#1); 550#L663-2 assume { :begin_inline_timeShift } true; 566#L444 assume !(0 != ~pumpRunning~0); 555#L444-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 556#L476 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 586#L468-1 assume { :end_inline_processEnvironment__wrappee__base } true; 577#L476-1 assume { :end_inline_processEnvironment } true; 578#L451-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 608#L728 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 609#L922 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 610#L928-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 529#L461 assume { :end_inline_timeShift } true; 530#L625-2 [2021-12-14 23:38:38,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:38,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-12-14 23:38:38,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:38,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098562507] [2021-12-14 23:38:38,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:38,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:38,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:38,241 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:38,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:38,281 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:38,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:38,283 INFO L85 PathProgramCache]: Analyzing trace with hash 586199607, now seen corresponding path program 1 times [2021-12-14 23:38:38,284 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:38,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437520738] [2021-12-14 23:38:38,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:38,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:38:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:38:38,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:38:38,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437520738] [2021-12-14 23:38:38,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437520738] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:38:38,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:38:38,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 23:38:38,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857007458] [2021-12-14 23:38:38,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:38:38,310 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-14 23:38:38,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:38:38,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 23:38:38,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 23:38:38,312 INFO L87 Difference]: Start difference. First operand 161 states and 215 transitions. cyclomatic complexity: 57 Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:38,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:38:38,412 INFO L93 Difference]: Finished difference Result 215 states and 276 transitions. [2021-12-14 23:38:38,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 23:38:38,413 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 215 states and 276 transitions. [2021-12-14 23:38:38,414 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 157 [2021-12-14 23:38:38,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 215 states to 215 states and 276 transitions. [2021-12-14 23:38:38,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2021-12-14 23:38:38,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2021-12-14 23:38:38,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 276 transitions. [2021-12-14 23:38:38,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:38:38,418 INFO L681 BuchiCegarLoop]: Abstraction has 215 states and 276 transitions. [2021-12-14 23:38:38,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 276 transitions. [2021-12-14 23:38:38,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-12-14 23:38:38,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 215 states have (on average 1.283720930232558) internal successors, (276), 214 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:38,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 276 transitions. [2021-12-14 23:38:38,452 INFO L704 BuchiCegarLoop]: Abstraction has 215 states and 276 transitions. [2021-12-14 23:38:38,452 INFO L587 BuchiCegarLoop]: Abstraction has 215 states and 276 transitions. [2021-12-14 23:38:38,453 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-12-14 23:38:38,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 276 transitions. [2021-12-14 23:38:38,457 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 157 [2021-12-14 23:38:38,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:38,457 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:38,459 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:38,459 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, 1] [2021-12-14 23:38:38,460 INFO L791 eck$LassoCheckResult]: Stem: 1020#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 961#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 962#L900 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1003#L893 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; 999#L908 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 1000#L864 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 948#L838 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 912#L625-2 [2021-12-14 23:38:38,461 INFO L793 eck$LassoCheckResult]: Loop: 912#L625-2 assume !false; 998#L626 assume test_~splverifierCounter~0#1 < 4; 980#L627 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 942#L635 assume !(0 != test_~tmp~5#1); 943#L635-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 979#L645 assume !(0 != test_~tmp___0~1#1); 914#L645-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 951#L655 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 929#L663 assume !(0 != test_~tmp___1~0#1); 930#L663-2 assume { :begin_inline_timeShift } true; 945#L444 assume !(0 != ~pumpRunning~0); 934#L444-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 935#L476 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 919#L768 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 920#L773 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 969#L578 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 970#L578-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 989#L584 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 972#L480 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 973#L468 assume { :end_inline_processEnvironment__wrappee__base } true; 957#L476-1 assume { :end_inline_processEnvironment } true; 958#L451-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 992#L728 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 993#L922 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7#1; 994#L928-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 911#L461 assume { :end_inline_timeShift } true; 912#L625-2 [2021-12-14 23:38:38,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:38,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-12-14 23:38:38,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:38,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282692342] [2021-12-14 23:38:38,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:38,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:38,477 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:38,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:38,509 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:38,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:38,510 INFO L85 PathProgramCache]: Analyzing trace with hash -45073313, now seen corresponding path program 1 times [2021-12-14 23:38:38,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:38,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193407640] [2021-12-14 23:38:38,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:38,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:38,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:38,522 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:38,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:38,540 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:38,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:38,544 INFO L85 PathProgramCache]: Analyzing trace with hash -171514589, now seen corresponding path program 1 times [2021-12-14 23:38:38,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:38,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184852716] [2021-12-14 23:38:38,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:38,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:38,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 23:38:38,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 23:38:38,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 23:38:38,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184852716] [2021-12-14 23:38:38,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184852716] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 23:38:38,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 23:38:38,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 23:38:38,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308520104] [2021-12-14 23:38:38,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 23:38:39,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 23:38:39,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 23:38:39,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 23:38:39,043 INFO L87 Difference]: Start difference. First operand 215 states and 276 transitions. cyclomatic complexity: 64 Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:39,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 23:38:39,124 INFO L93 Difference]: Finished difference Result 737 states and 939 transitions. [2021-12-14 23:38:39,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 23:38:39,126 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 737 states and 939 transitions. [2021-12-14 23:38:39,131 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 570 [2021-12-14 23:38:39,134 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 737 states to 737 states and 939 transitions. [2021-12-14 23:38:39,134 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 737 [2021-12-14 23:38:39,135 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 737 [2021-12-14 23:38:39,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 737 states and 939 transitions. [2021-12-14 23:38:39,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-14 23:38:39,136 INFO L681 BuchiCegarLoop]: Abstraction has 737 states and 939 transitions. [2021-12-14 23:38:39,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states and 939 transitions. [2021-12-14 23:38:39,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 423. [2021-12-14 23:38:39,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 423 states have (on average 1.260047281323877) internal successors, (533), 422 states have internal predecessors, (533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 23:38:39,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 533 transitions. [2021-12-14 23:38:39,148 INFO L704 BuchiCegarLoop]: Abstraction has 423 states and 533 transitions. [2021-12-14 23:38:39,148 INFO L587 BuchiCegarLoop]: Abstraction has 423 states and 533 transitions. [2021-12-14 23:38:39,148 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-12-14 23:38:39,148 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 423 states and 533 transitions. [2021-12-14 23:38:39,150 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 314 [2021-12-14 23:38:39,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-14 23:38:39,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-14 23:38:39,152 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-14 23:38:39,152 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, 1, 1, 1] [2021-12-14 23:38:39,153 INFO L791 eck$LassoCheckResult]: Stem: 2013#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 1936#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret47#1, main_~retValue_acc~9#1, main_~tmp~6#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~6#1;assume { :begin_inline_select_helpers } true; 1937#L900 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1989#L893 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; 1985#L908 main_#t~ret47#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~6#1 := main_#t~ret47#1;havoc main_#t~ret47#1; 1986#L864 assume 0 != main_~tmp~6#1;assume { :begin_inline_setup } true; 1920#L838 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1921#L625-2 [2021-12-14 23:38:39,153 INFO L793 eck$LassoCheckResult]: Loop: 1921#L625-2 assume !false; 2199#L626 assume test_~splverifierCounter~0#1 < 4; 2200#L627 test_~tmp~5#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 2290#L635 assume !(0 != test_~tmp~5#1); 2288#L635-2 test_~tmp___0~1#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 2287#L645 assume !(0 != test_~tmp___0~1#1); 2285#L645-2 test_~tmp___2~0#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 2284#L655 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2229#L608 assume { :end_inline_startSystem } true; 1900#L663-2 assume { :begin_inline_timeShift } true; 2255#L444 assume !(0 != ~pumpRunning~0); 1905#L444-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret27#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 1906#L476 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret37#1, isHighWaterLevel_~retValue_acc~5#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~0#1;havoc isHighWaterLevel_~retValue_acc~5#1;havoc isHighWaterLevel_~tmp~4#1;havoc isHighWaterLevel_~tmp___0~0#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1; 1889#L768 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1; 1890#L773 isHighWaterLevel_#t~ret37#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret37#1;havoc isHighWaterLevel_#t~ret37#1; 1944#L578 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~0#1 := 0; 1945#L578-2 isHighWaterLevel_~retValue_acc~5#1 := isHighWaterLevel_~tmp___0~0#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~5#1; 1966#L584 processEnvironment_#t~ret27#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret27#1;havoc processEnvironment_#t~ret27#1; 1947#L480 assume !(0 != processEnvironment_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1948#L468 assume { :end_inline_processEnvironment__wrappee__base } true; 2211#L476-1 assume { :end_inline_processEnvironment } true; 2209#L451-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret49#1, __utac_acc__Specification3_spec__1_#t~ret50#1, __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_~tmp~7#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~7#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1; 2208#L728 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~7#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 2207#L922 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1; 2206#L760 __utac_acc__Specification3_spec__1_#t~ret50#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret50#1;havoc __utac_acc__Specification3_spec__1_#t~ret50#1; 2203#L928 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 2202#L928-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2201#L461 assume { :end_inline_timeShift } true; 1921#L625-2 [2021-12-14 23:38:39,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:39,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-12-14 23:38:39,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:39,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408468998] [2021-12-14 23:38:39,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:39,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:39,161 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:39,168 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:39,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:39,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1853936160, now seen corresponding path program 1 times [2021-12-14 23:38:39,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:39,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210047449] [2021-12-14 23:38:39,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:39,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:39,175 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:39,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:39,181 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:39,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 23:38:39,182 INFO L85 PathProgramCache]: Analyzing trace with hash 602954212, now seen corresponding path program 1 times [2021-12-14 23:38:39,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 23:38:39,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808435871] [2021-12-14 23:38:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 23:38:39,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 23:38:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:39,226 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-14 23:38:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-14 23:38:39,251 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-14 23:38:42,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.12 11:38:42 BoogieIcfgContainer [2021-12-14 23:38:42,594 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-12-14 23:38:42,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-14 23:38:42,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-14 23:38:42,595 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-14 23:38:42,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 11:38:37" (3/4) ... [2021-12-14 23:38:42,597 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-12-14 23:38:42,638 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-14 23:38:42,638 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-14 23:38:42,639 INFO L158 Benchmark]: Toolchain (without parser) took 6969.55ms. Allocated memory was 115.3MB in the beginning and 220.2MB in the end (delta: 104.9MB). Free memory was 86.9MB in the beginning and 104.2MB in the end (delta: -17.4MB). Peak memory consumption was 86.9MB. Max. memory is 16.1GB. [2021-12-14 23:38:42,639 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:38:42,640 INFO L158 Benchmark]: CACSL2BoogieTranslator took 645.48ms. Allocated memory is still 115.3MB. Free memory was 86.7MB in the beginning and 81.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-14 23:38:42,640 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.24ms. Allocated memory is still 115.3MB. Free memory was 81.6MB in the beginning and 78.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-14 23:38:42,640 INFO L158 Benchmark]: Boogie Preprocessor took 47.54ms. Allocated memory is still 115.3MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-14 23:38:42,641 INFO L158 Benchmark]: RCFGBuilder took 575.65ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 76.8MB in the beginning and 137.9MB in the end (delta: -61.1MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2021-12-14 23:38:42,641 INFO L158 Benchmark]: BuchiAutomizer took 5577.95ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 137.8MB in the beginning and 107.4MB in the end (delta: 30.4MB). Peak memory consumption was 119.0MB. Max. memory is 16.1GB. [2021-12-14 23:38:42,642 INFO L158 Benchmark]: Witness Printer took 43.97ms. Allocated memory is still 220.2MB. Free memory was 107.4MB in the beginning and 104.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-14 23:38:42,643 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 115.3MB. Free memory is still 72.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 645.48ms. Allocated memory is still 115.3MB. Free memory was 86.7MB in the beginning and 81.6MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.24ms. Allocated memory is still 115.3MB. Free memory was 81.6MB in the beginning and 78.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.54ms. Allocated memory is still 115.3MB. Free memory was 78.8MB in the beginning and 77.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 575.65ms. Allocated memory was 115.3MB in the beginning and 163.6MB in the end (delta: 48.2MB). Free memory was 76.8MB in the beginning and 137.9MB in the end (delta: -61.1MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 5577.95ms. Allocated memory was 163.6MB in the beginning and 220.2MB in the end (delta: 56.6MB). Free memory was 137.8MB in the beginning and 107.4MB in the end (delta: 30.4MB). Peak memory consumption was 119.0MB. Max. memory is 16.1GB. * Witness Printer took 43.97ms. Allocated memory is still 220.2MB. Free memory was 107.4MB in the beginning and 104.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 423 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 506 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 423 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1419 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1419 mSDsluCounter, 2152 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1647 mSDsCounter, 43 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 43 mSolverCounterUnsat, 505 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc2 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: 625]: 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, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45d09c23=0, retValue_acc=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, tmp___0=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@94b38b0=0, \result=1, \result=1, retValue_acc=1, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b04b475=0, tmp=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@136a75dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@195cdd91=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f75c2fd=29, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33ed1a0c=0, tmp=1, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21ff9c56=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@853309a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30f95878=0, \result=0, tmp=0, head=0, retValue_acc=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, \result=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 625]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L436] int pumpRunning = 0; [L437] int systemActive = 1; [L685] int waterLevel = 1; [L686] int methaneLevelCritical = 0; [L779] int cleanupTimeShifts = 4; [L855] int retValue_acc ; [L856] int tmp ; [L860] FCALL select_helpers() [L861] FCALL select_features() [L862] CALL, EXPR valid_product() [L904] int retValue_acc ; [L907] retValue_acc = 1 [L908] return (retValue_acc); [L862] RET, EXPR valid_product() [L862] tmp = valid_product() [L864] COND TRUE \read(tmp) [L866] FCALL setup() [L867] CALL runTest() [L846] CALL test() [L616] int splverifierCounter ; [L617] int tmp ; [L618] int tmp___0 ; [L619] int tmp___1 ; [L620] int tmp___2 ; [L623] splverifierCounter = 0 Loop: [L625] COND TRUE 1 [L627] COND TRUE splverifierCounter < 4 [L633] tmp = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp)) [L643] tmp___0 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___0)) [L653] tmp___2 = __VERIFIER_nondet_int() [L655] COND TRUE \read(tmp___2) [L657] CALL startSystem() [L607] systemActive = 1 [L657] RET startSystem() [L672] CALL timeShift() [L444] COND FALSE !(\read(pumpRunning)) [L451] COND TRUE \read(systemActive) [L453] CALL processEnvironment() [L473] int tmp ; [L476] COND TRUE ! pumpRunning [L478] CALL, EXPR isHighWaterLevel() [L570] int retValue_acc ; [L571] int tmp ; [L572] int tmp___0 ; [L576] CALL, EXPR isHighWaterSensorDry() [L765] int retValue_acc ; [L768] COND TRUE waterLevel < 2 [L769] retValue_acc = 1 [L770] return (retValue_acc); [L576] RET, EXPR isHighWaterSensorDry() [L576] tmp = isHighWaterSensorDry() [L578] COND TRUE \read(tmp) [L579] tmp___0 = 0 [L583] retValue_acc = tmp___0 [L584] return (retValue_acc); [L478] RET, EXPR isHighWaterLevel() [L478] tmp = isHighWaterLevel() [L480] COND FALSE !(\read(tmp)) [L486] FCALL processEnvironment__wrappee__base() [L453] RET processEnvironment() [L459] CALL __utac_acc__Specification3_spec__1() [L914] int tmp ; [L915] int tmp___0 ; [L916] int tmp___1 ; [L920] CALL, EXPR isMethaneLevelCritical() [L724] int retValue_acc ; [L727] retValue_acc = methaneLevelCritical [L728] return (retValue_acc); [L920] RET, EXPR isMethaneLevelCritical() [L920] tmp = isMethaneLevelCritical() [L922] COND FALSE !(\read(tmp)) [L926] CALL, EXPR getWaterLevel() [L756] int retValue_acc ; [L759] retValue_acc = waterLevel [L760] return (retValue_acc); [L926] RET, EXPR getWaterLevel() [L926] tmp___0 = getWaterLevel() [L928] COND FALSE !(tmp___0 == 2) [L459] RET __utac_acc__Specification3_spec__1() [L672] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-12-14 23:38:42,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- 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)