./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec3_product21.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 cb1c81112da7426f28a4c2690555e17bdc3cfadcaf288b3cb23a3bbf0c5e9fe6 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-21 04:16:49,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-21 04:16:49,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-21 04:16:49,539 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-21 04:16:49,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-21 04:16:49,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-21 04:16:49,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-21 04:16:49,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-21 04:16:49,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-21 04:16:49,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-21 04:16:49,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-21 04:16:49,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-21 04:16:49,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-21 04:16:49,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-21 04:16:49,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-21 04:16:49,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-21 04:16:49,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-21 04:16:49,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-21 04:16:49,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-21 04:16:49,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-21 04:16:49,558 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-21 04:16:49,559 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-21 04:16:49,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-21 04:16:49,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-21 04:16:49,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-21 04:16:49,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-21 04:16:49,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-21 04:16:49,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-21 04:16:49,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-21 04:16:49,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-21 04:16:49,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-21 04:16:49,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-21 04:16:49,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-21 04:16:49,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-21 04:16:49,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-21 04:16:49,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-21 04:16:49,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-21 04:16:49,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-21 04:16:49,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-21 04:16:49,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-21 04:16:49,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-21 04:16:49,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-02-21 04:16:49,599 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-21 04:16:49,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-21 04:16:49,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-21 04:16:49,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-21 04:16:49,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-21 04:16:49,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-21 04:16:49,601 INFO L138 SettingsManager]: * Use SBE=true [2022-02-21 04:16:49,601 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-02-21 04:16:49,601 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-02-21 04:16:49,601 INFO L138 SettingsManager]: * Use old map elimination=false [2022-02-21 04:16:49,601 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-02-21 04:16:49,601 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-02-21 04:16:49,601 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-02-21 04:16:49,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-02-21 04:16:49,602 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-21 04:16:49,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-02-21 04:16:49,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-21 04:16:49,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-21 04:16:49,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-21 04:16:49,603 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-21 04:16:49,604 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-02-21 04:16:49,604 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb1c81112da7426f28a4c2690555e17bdc3cfadcaf288b3cb23a3bbf0c5e9fe6 [2022-02-21 04:16:49,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-21 04:16:49,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-21 04:16:49,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-21 04:16:49,814 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-21 04:16:49,814 INFO L275 PluginConnector]: CDTParser initialized [2022-02-21 04:16:49,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2022-02-21 04:16:49,866 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2052c530b/82a10b8b92ac435dacf4dc04ffefbd96/FLAG38613bd7b [2022-02-21 04:16:50,265 INFO L306 CDTParser]: Found 1 translation units. [2022-02-21 04:16:50,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2022-02-21 04:16:50,279 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2052c530b/82a10b8b92ac435dacf4dc04ffefbd96/FLAG38613bd7b [2022-02-21 04:16:50,290 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2052c530b/82a10b8b92ac435dacf4dc04ffefbd96 [2022-02-21 04:16:50,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-21 04:16:50,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-21 04:16:50,295 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:50,295 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-21 04:16:50,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-21 04:16:50,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39f1c2fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50, skipping insertion in model container [2022-02-21 04:16:50,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-21 04:16:50,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-21 04:16:50,529 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_product21.cil.c[13817,13830] [2022-02-21 04:16:50,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:50,562 INFO L203 MainTranslator]: Completed pre-run [2022-02-21 04:16:50,612 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_product21.cil.c[13817,13830] [2022-02-21 04:16:50,622 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-21 04:16:50,634 INFO L208 MainTranslator]: Completed translation [2022-02-21 04:16:50,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50 WrapperNode [2022-02-21 04:16:50,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-21 04:16:50,635 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:50,636 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-21 04:16:50,636 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-21 04:16:50,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,693 INFO L137 Inliner]: procedures = 53, calls = 154, calls flagged for inlining = 51, calls inlined = 80, statements flattened = 590 [2022-02-21 04:16:50,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-21 04:16:50,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-21 04:16:50,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-21 04:16:50,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-21 04:16:50,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,710 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,720 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-21 04:16:50,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-21 04:16:50,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-21 04:16:50,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-21 04:16:50,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (1/1) ... [2022-02-21 04:16:50,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-02-21 04:16:50,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-21 04:16:50,789 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-02-21 04:16:50,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-02-21 04:16:50,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-21 04:16:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-21 04:16:50,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-21 04:16:50,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-21 04:16:50,902 INFO L234 CfgBuilder]: Building ICFG [2022-02-21 04:16:50,903 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-21 04:16:51,284 INFO L275 CfgBuilder]: Performing block encoding [2022-02-21 04:16:51,290 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-21 04:16:51,290 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-02-21 04:16:51,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:51 BoogieIcfgContainer [2022-02-21 04:16:51,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-21 04:16:51,293 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-02-21 04:16:51,293 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-02-21 04:16:51,295 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-02-21 04:16:51,296 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:51,296 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.02 04:16:50" (1/3) ... [2022-02-21 04:16:51,297 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1190796b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:51, skipping insertion in model container [2022-02-21 04:16:51,298 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:51,298 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 04:16:50" (2/3) ... [2022-02-21 04:16:51,298 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1190796b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.02 04:16:51, skipping insertion in model container [2022-02-21 04:16:51,299 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-02-21 04:16:51,299 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:51" (3/3) ... [2022-02-21 04:16:51,301 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2022-02-21 04:16:51,345 INFO L359 BuchiCegarLoop]: Interprodecural is true [2022-02-21 04:16:51,346 INFO L360 BuchiCegarLoop]: Hoare is false [2022-02-21 04:16:51,346 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-02-21 04:16:51,346 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-02-21 04:16:51,346 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-02-21 04:16:51,346 INFO L364 BuchiCegarLoop]: Difference is false [2022-02-21 04:16:51,346 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-02-21 04:16:51,346 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2022-02-21 04:16:51,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 156 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 155 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:51,395 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-02-21 04:16:51,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:51,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:51,401 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:51,401 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:51,401 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2022-02-21 04:16:51,407 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 156 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 155 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:51,420 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 100 [2022-02-21 04:16:51,421 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:51,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:51,421 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:51,421 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:51,425 INFO L791 eck$LassoCheckResult]: Stem: 144#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; 43#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 121#L926true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 101#L919true 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; 118#L934true main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 154#L856true assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 131#L830true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 78#L626-2true [2022-02-21 04:16:51,426 INFO L793 eck$LassoCheckResult]: Loop: 78#L626-2true assume !false; 65#L627true assume test_~splverifierCounter~0#1 < 4; 62#L628true test_~tmp~6#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 114#L636true assume !(0 != test_~tmp~6#1); 132#L636-2true test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 106#L646true assume !(0 != test_~tmp___0~1#1); 37#L646-2true test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 122#L656true assume 0 != test_~tmp___2~0#1; 67#L662-2true assume { :begin_inline_timeShift } true; 83#L433true assume !(0 != ~pumpRunning~0); 64#L433-2true assume !(0 != ~systemActive~0); 34#L440-1true 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~8#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~8#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; 90#L725-1true __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 109#L879true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 151#L885-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 116#L450true assume { :end_inline_timeShift } true; 78#L626-2true [2022-02-21 04:16:51,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:51,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-02-21 04:16:51,436 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:51,439 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710358864] [2022-02-21 04:16:51,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:51,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:51,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,536 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,580 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:51,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:51,583 INFO L85 PathProgramCache]: Analyzing trace with hash 679856854, now seen corresponding path program 1 times [2022-02-21 04:16:51,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:51,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565653757] [2022-02-21 04:16:51,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:51,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,592 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:51,600 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:51,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:51,601 INFO L85 PathProgramCache]: Analyzing trace with hash 2035275930, now seen corresponding path program 1 times [2022-02-21 04:16:51,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:51,602 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663812222] [2022-02-21 04:16:51,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:51,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:51,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:51,690 INFO L290 TraceCheckUtils]: 0: Hoare triple {164#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(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; {166#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:51,691 INFO L290 TraceCheckUtils]: 1: Hoare triple {166#(= 1 ~systemActive~0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {166#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:51,692 INFO L290 TraceCheckUtils]: 2: Hoare triple {166#(= 1 ~systemActive~0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {166#(= 1 ~systemActive~0)} is VALID [2022-02-21 04:16:51,692 INFO L290 TraceCheckUtils]: 3: Hoare triple {166#(= 1 ~systemActive~0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {167#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} is VALID [2022-02-21 04:16:51,692 INFO L290 TraceCheckUtils]: 4: Hoare triple {167#(= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)} main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; {168#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} is VALID [2022-02-21 04:16:51,693 INFO L290 TraceCheckUtils]: 5: Hoare triple {168#(= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,693 INFO L290 TraceCheckUtils]: 6: Hoare triple {169#(not (= 0 ~systemActive~0))} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,694 INFO L290 TraceCheckUtils]: 7: Hoare triple {169#(not (= 0 ~systemActive~0))} assume !false; {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,694 INFO L290 TraceCheckUtils]: 8: Hoare triple {169#(not (= 0 ~systemActive~0))} assume test_~splverifierCounter~0#1 < 4; {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,695 INFO L290 TraceCheckUtils]: 9: Hoare triple {169#(not (= 0 ~systemActive~0))} test_~tmp~6#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,695 INFO L290 TraceCheckUtils]: 10: Hoare triple {169#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp~6#1); {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,696 INFO L290 TraceCheckUtils]: 11: Hoare triple {169#(not (= 0 ~systemActive~0))} test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,696 INFO L290 TraceCheckUtils]: 12: Hoare triple {169#(not (= 0 ~systemActive~0))} assume !(0 != test_~tmp___0~1#1); {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,697 INFO L290 TraceCheckUtils]: 13: Hoare triple {169#(not (= 0 ~systemActive~0))} test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,697 INFO L290 TraceCheckUtils]: 14: Hoare triple {169#(not (= 0 ~systemActive~0))} assume 0 != test_~tmp___2~0#1; {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,697 INFO L290 TraceCheckUtils]: 15: Hoare triple {169#(not (= 0 ~systemActive~0))} assume { :begin_inline_timeShift } true; {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,698 INFO L290 TraceCheckUtils]: 16: Hoare triple {169#(not (= 0 ~systemActive~0))} assume !(0 != ~pumpRunning~0); {169#(not (= 0 ~systemActive~0))} is VALID [2022-02-21 04:16:51,698 INFO L290 TraceCheckUtils]: 17: Hoare triple {169#(not (= 0 ~systemActive~0))} assume !(0 != ~systemActive~0); {165#false} is VALID [2022-02-21 04:16:51,699 INFO L290 TraceCheckUtils]: 18: Hoare triple {165#false} 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~8#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~8#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; {165#false} is VALID [2022-02-21 04:16:51,699 INFO L290 TraceCheckUtils]: 19: Hoare triple {165#false} __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; {165#false} is VALID [2022-02-21 04:16:51,699 INFO L290 TraceCheckUtils]: 20: Hoare triple {165#false} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {165#false} is VALID [2022-02-21 04:16:51,699 INFO L290 TraceCheckUtils]: 21: Hoare triple {165#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {165#false} is VALID [2022-02-21 04:16:51,700 INFO L290 TraceCheckUtils]: 22: Hoare triple {165#false} assume { :end_inline_timeShift } true; {165#false} is VALID [2022-02-21 04:16:51,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:51,701 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:51,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663812222] [2022-02-21 04:16:51,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663812222] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:51,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:51,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-21 04:16:51,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379113918] [2022-02-21 04:16:51,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:51,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:51,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-21 04:16:51,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-02-21 04:16:51,854 INFO L87 Difference]: Start difference. First operand has 156 states, 155 states have (on average 1.3548387096774193) internal successors, (210), 155 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:52,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:52,178 INFO L93 Difference]: Finished difference Result 153 states and 196 transitions. [2022-02-21 04:16:52,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-21 04:16:52,179 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:52,197 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:52,216 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 153 states and 196 transitions. [2022-02-21 04:16:52,223 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 96 [2022-02-21 04:16:52,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 153 states to 143 states and 186 transitions. [2022-02-21 04:16:52,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 143 [2022-02-21 04:16:52,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 143 [2022-02-21 04:16:52,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 143 states and 186 transitions. [2022-02-21 04:16:52,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:52,236 INFO L681 BuchiCegarLoop]: Abstraction has 143 states and 186 transitions. [2022-02-21 04:16:52,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states and 186 transitions. [2022-02-21 04:16:52,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2022-02-21 04:16:52,265 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:52,266 INFO L82 GeneralOperation]: Start isEquivalent. First operand 143 states and 186 transitions. Second operand has 143 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 142 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:52,267 INFO L74 IsIncluded]: Start isIncluded. First operand 143 states and 186 transitions. Second operand has 143 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 142 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:52,268 INFO L87 Difference]: Start difference. First operand 143 states and 186 transitions. Second operand has 143 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 142 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:52,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:52,272 INFO L93 Difference]: Finished difference Result 143 states and 186 transitions. [2022-02-21 04:16:52,273 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 186 transitions. [2022-02-21 04:16:52,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:52,274 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:52,274 INFO L74 IsIncluded]: Start isIncluded. First operand has 143 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 142 states have internal predecessors, (186), 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 143 states and 186 transitions. [2022-02-21 04:16:52,275 INFO L87 Difference]: Start difference. First operand has 143 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 142 states have internal predecessors, (186), 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 143 states and 186 transitions. [2022-02-21 04:16:52,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:52,278 INFO L93 Difference]: Finished difference Result 143 states and 186 transitions. [2022-02-21 04:16:52,278 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 186 transitions. [2022-02-21 04:16:52,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:52,279 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:52,279 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:52,279 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:52,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 143 states have (on average 1.3006993006993006) internal successors, (186), 142 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:52,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 186 transitions. [2022-02-21 04:16:52,284 INFO L704 BuchiCegarLoop]: Abstraction has 143 states and 186 transitions. [2022-02-21 04:16:52,284 INFO L587 BuchiCegarLoop]: Abstraction has 143 states and 186 transitions. [2022-02-21 04:16:52,284 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2022-02-21 04:16:52,284 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 143 states and 186 transitions. [2022-02-21 04:16:52,285 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 96 [2022-02-21 04:16:52,285 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:52,285 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:52,286 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:52,286 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] [2022-02-21 04:16:52,286 INFO L791 eck$LassoCheckResult]: Stem: 469#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; 397#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 398#L926 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 454#L919 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; 455#L934 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 461#L856 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 465#L830 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 438#L626-2 [2022-02-21 04:16:52,286 INFO L793 eck$LassoCheckResult]: Loop: 438#L626-2 assume !false; 422#L627 assume test_~splverifierCounter~0#1 < 4; 420#L628 test_~tmp~6#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 421#L636 assume !(0 != test_~tmp~6#1); 459#L636-2 test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 457#L646 assume !(0 != test_~tmp___0~1#1); 386#L646-2 test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 387#L656 assume 0 != test_~tmp___2~0#1; 414#L662-2 assume { :begin_inline_timeShift } true; 426#L433 assume !(0 != ~pumpRunning~0); 378#L433-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret28#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 333#L491 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret27#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 334#L465-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 437#L457-3 assume { :end_inline_processEnvironment__wrappee__base } true; 399#L465-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 328#L491-1 assume { :end_inline_processEnvironment } true; 381#L440-1 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~8#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~8#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; 382#L725-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 450#L879 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; 346#L885-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 460#L450 assume { :end_inline_timeShift } true; 438#L626-2 [2022-02-21 04:16:52,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:52,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-02-21 04:16:52,287 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:52,287 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97652405] [2022-02-21 04:16:52,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:52,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:52,300 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:52,313 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:52,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:52,313 INFO L85 PathProgramCache]: Analyzing trace with hash -1867532528, now seen corresponding path program 1 times [2022-02-21 04:16:52,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:52,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975980601] [2022-02-21 04:16:52,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:52,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:52,319 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:52,323 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:52,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:52,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1415863348, now seen corresponding path program 1 times [2022-02-21 04:16:52,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:52,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617299927] [2022-02-21 04:16:52,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:52,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-21 04:16:52,370 INFO L290 TraceCheckUtils]: 0: Hoare triple {763#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(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; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,371 INFO L290 TraceCheckUtils]: 1: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,371 INFO L290 TraceCheckUtils]: 2: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,372 INFO L290 TraceCheckUtils]: 3: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,372 INFO L290 TraceCheckUtils]: 4: Hoare triple {765#(= ~methaneLevelCritical~0 0)} main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,372 INFO L290 TraceCheckUtils]: 5: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,373 INFO L290 TraceCheckUtils]: 6: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,373 INFO L290 TraceCheckUtils]: 7: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume !false; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,374 INFO L290 TraceCheckUtils]: 8: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume test_~splverifierCounter~0#1 < 4; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,374 INFO L290 TraceCheckUtils]: 9: Hoare triple {765#(= ~methaneLevelCritical~0 0)} test_~tmp~6#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,374 INFO L290 TraceCheckUtils]: 10: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp~6#1); {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,375 INFO L290 TraceCheckUtils]: 11: Hoare triple {765#(= ~methaneLevelCritical~0 0)} test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,375 INFO L290 TraceCheckUtils]: 12: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume !(0 != test_~tmp___0~1#1); {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,375 INFO L290 TraceCheckUtils]: 13: Hoare triple {765#(= ~methaneLevelCritical~0 0)} test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,376 INFO L290 TraceCheckUtils]: 14: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume 0 != test_~tmp___2~0#1; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,376 INFO L290 TraceCheckUtils]: 15: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume { :begin_inline_timeShift } true; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,376 INFO L290 TraceCheckUtils]: 16: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0); {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,377 INFO L290 TraceCheckUtils]: 17: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret28#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,377 INFO L290 TraceCheckUtils]: 18: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret27#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,377 INFO L290 TraceCheckUtils]: 19: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,378 INFO L290 TraceCheckUtils]: 20: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__base } true; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,378 INFO L290 TraceCheckUtils]: 21: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,378 INFO L290 TraceCheckUtils]: 22: Hoare triple {765#(= ~methaneLevelCritical~0 0)} assume { :end_inline_processEnvironment } true; {765#(= ~methaneLevelCritical~0 0)} is VALID [2022-02-21 04:16:52,379 INFO L290 TraceCheckUtils]: 23: Hoare triple {765#(= ~methaneLevelCritical~0 0)} 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~8#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~8#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; {766#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} is VALID [2022-02-21 04:16:52,379 INFO L290 TraceCheckUtils]: 24: Hoare triple {766#(= |ULTIMATE.start_isMethaneLevelCritical_#res#1| 0)} __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; {767#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} is VALID [2022-02-21 04:16:52,380 INFO L290 TraceCheckUtils]: 25: Hoare triple {767#(= |ULTIMATE.start___utac_acc__Specification3_spec__1_~tmp~8#1| 0)} assume 0 != __utac_acc__Specification3_spec__1_~tmp~8#1; {764#false} is VALID [2022-02-21 04:16:52,380 INFO L290 TraceCheckUtils]: 26: Hoare triple {764#false} assume { :end_inline___utac_acc__Specification3_spec__1 } true; {764#false} is VALID [2022-02-21 04:16:52,380 INFO L290 TraceCheckUtils]: 27: Hoare triple {764#false} assume { :end_inline_timeShift } true; {764#false} is VALID [2022-02-21 04:16:52,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-21 04:16:52,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-21 04:16:52,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617299927] [2022-02-21 04:16:52,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617299927] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-21 04:16:52,381 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-21 04:16:52,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-21 04:16:52,381 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679850927] [2022-02-21 04:16:52,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-21 04:16:52,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-21 04:16:52,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-21 04:16:52,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-02-21 04:16:52,464 INFO L87 Difference]: Start difference. First operand 143 states and 186 transitions. cyclomatic complexity: 45 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:53,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:53,114 INFO L93 Difference]: Finished difference Result 521 states and 682 transitions. [2022-02-21 04:16:53,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-21 04:16:53,114 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:53,132 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-21 04:16:53,133 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 521 states and 682 transitions. [2022-02-21 04:16:53,148 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 357 [2022-02-21 04:16:53,163 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 521 states to 521 states and 682 transitions. [2022-02-21 04:16:53,163 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 521 [2022-02-21 04:16:53,164 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 521 [2022-02-21 04:16:53,164 INFO L73 IsDeterministic]: Start isDeterministic. Operand 521 states and 682 transitions. [2022-02-21 04:16:53,167 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-02-21 04:16:53,167 INFO L681 BuchiCegarLoop]: Abstraction has 521 states and 682 transitions. [2022-02-21 04:16:53,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states and 682 transitions. [2022-02-21 04:16:53,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 279. [2022-02-21 04:16:53,190 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-21 04:16:53,191 INFO L82 GeneralOperation]: Start isEquivalent. First operand 521 states and 682 transitions. Second operand has 279 states, 279 states have (on average 1.2939068100358424) internal successors, (361), 278 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:53,192 INFO L74 IsIncluded]: Start isIncluded. First operand 521 states and 682 transitions. Second operand has 279 states, 279 states have (on average 1.2939068100358424) internal successors, (361), 278 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:53,192 INFO L87 Difference]: Start difference. First operand 521 states and 682 transitions. Second operand has 279 states, 279 states have (on average 1.2939068100358424) internal successors, (361), 278 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:53,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:53,204 INFO L93 Difference]: Finished difference Result 521 states and 682 transitions. [2022-02-21 04:16:53,204 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 682 transitions. [2022-02-21 04:16:53,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:53,229 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:53,230 INFO L74 IsIncluded]: Start isIncluded. First operand has 279 states, 279 states have (on average 1.2939068100358424) internal successors, (361), 278 states have internal predecessors, (361), 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 521 states and 682 transitions. [2022-02-21 04:16:53,232 INFO L87 Difference]: Start difference. First operand has 279 states, 279 states have (on average 1.2939068100358424) internal successors, (361), 278 states have internal predecessors, (361), 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 521 states and 682 transitions. [2022-02-21 04:16:53,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-21 04:16:53,244 INFO L93 Difference]: Finished difference Result 521 states and 682 transitions. [2022-02-21 04:16:53,245 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 682 transitions. [2022-02-21 04:16:53,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-21 04:16:53,245 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-21 04:16:53,246 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-21 04:16:53,246 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-21 04:16:53,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 279 states have (on average 1.2939068100358424) internal successors, (361), 278 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-21 04:16:53,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 361 transitions. [2022-02-21 04:16:53,255 INFO L704 BuchiCegarLoop]: Abstraction has 279 states and 361 transitions. [2022-02-21 04:16:53,255 INFO L587 BuchiCegarLoop]: Abstraction has 279 states and 361 transitions. [2022-02-21 04:16:53,256 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2022-02-21 04:16:53,256 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 279 states and 361 transitions. [2022-02-21 04:16:53,257 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 192 [2022-02-21 04:16:53,257 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-02-21 04:16:53,257 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-02-21 04:16:53,258 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-02-21 04:16:53,258 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] [2022-02-21 04:16:53,259 INFO L791 eck$LassoCheckResult]: Stem: 1460#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; 1369#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret48#1, main_~retValue_acc~9#1, main_~tmp~7#1;havoc main_~retValue_acc~9#1;havoc main_~tmp~7#1;assume { :begin_inline_select_helpers } true; 1370#L926 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1435#L919 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; 1436#L934 main_#t~ret48#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret48#1;havoc main_#t~ret48#1; 1445#L856 assume 0 != main_~tmp~7#1;assume { :begin_inline_setup } true; 1451#L830 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet39#1, test_#t~nondet40#1, test_#t~nondet41#1, test_#t~nondet42#1, test_~splverifierCounter~0#1, test_~tmp~6#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~6#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1452#L626-2 [2022-02-21 04:16:53,259 INFO L793 eck$LassoCheckResult]: Loop: 1452#L626-2 assume !false; 1506#L627 assume test_~splverifierCounter~0#1 < 4; 1505#L628 test_~tmp~6#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1; 1503#L636 assume !(0 != test_~tmp~6#1); 1501#L636-2 test_~tmp___0~1#1 := test_#t~nondet40#1;havoc test_#t~nondet40#1; 1500#L646 assume !(0 != test_~tmp___0~1#1); 1498#L646-2 test_~tmp___2~0#1 := test_#t~nondet41#1;havoc test_#t~nondet41#1; 1497#L656 assume 0 != test_~tmp___2~0#1; 1495#L662-2 assume { :begin_inline_timeShift } true; 1493#L433 assume !(0 != ~pumpRunning~0); 1491#L433-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret28#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1303#L491 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret27#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 1304#L465-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 1415#L457-3 assume { :end_inline_processEnvironment__wrappee__base } true; 1374#L465-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1298#L491-1 assume { :end_inline_processEnvironment } true; 1353#L440-1 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~8#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~8#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; 1354#L725-1 __utac_acc__Specification3_spec__1_#t~ret49#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~8#1 := __utac_acc__Specification3_spec__1_#t~ret49#1;havoc __utac_acc__Specification3_spec__1_#t~ret49#1; 1440#L879 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8#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; 1407#L757 __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; 1408#L885 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 1508#L885-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1507#L450 assume { :end_inline_timeShift } true; 1452#L626-2 [2022-02-21 04:16:53,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:53,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-02-21 04:16:53,260 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:53,260 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256576507] [2022-02-21 04:16:53,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:53,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:53,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:53,295 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:53,310 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:53,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:53,314 INFO L85 PathProgramCache]: Analyzing trace with hash 598823267, now seen corresponding path program 1 times [2022-02-21 04:16:53,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:53,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47228723] [2022-02-21 04:16:53,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:53,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:53,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:53,322 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:53,327 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:53,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-21 04:16:53,328 INFO L85 PathProgramCache]: Analyzing trace with hash 861208351, now seen corresponding path program 1 times [2022-02-21 04:16:53,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-21 04:16:53,329 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742369211] [2022-02-21 04:16:53,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-21 04:16:53,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-21 04:16:53,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:53,343 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-21 04:16:53,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-21 04:16:53,358 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-21 04:16:55,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.02 04:16:55 BoogieIcfgContainer [2022-02-21 04:16:55,694 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-02-21 04:16:55,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-21 04:16:55,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-21 04:16:55,695 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-21 04:16:55,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 04:16:51" (3/4) ... [2022-02-21 04:16:55,697 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-02-21 04:16:55,725 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-21 04:16:55,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-21 04:16:55,726 INFO L158 Benchmark]: Toolchain (without parser) took 5432.46ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 107.6MB in the beginning and 142.1MB in the end (delta: -34.5MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,727 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-21 04:16:55,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.77ms. Allocated memory is still 140.5MB. Free memory was 107.6MB in the beginning and 102.7MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.43ms. Allocated memory is still 140.5MB. Free memory was 102.7MB in the beginning and 99.1MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,728 INFO L158 Benchmark]: Boogie Preprocessor took 29.36ms. Allocated memory is still 140.5MB. Free memory was 99.1MB in the beginning and 96.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,728 INFO L158 Benchmark]: RCFGBuilder took 567.92ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 71.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,728 INFO L158 Benchmark]: BuchiAutomizer took 4401.16ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 71.2MB in the beginning and 145.2MB in the end (delta: -73.9MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,728 INFO L158 Benchmark]: Witness Printer took 31.22ms. Allocated memory is still 182.5MB. Free memory was 145.2MB in the beginning and 142.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-21 04:16:55,730 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 92.3MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.77ms. Allocated memory is still 140.5MB. Free memory was 107.6MB in the beginning and 102.7MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.43ms. Allocated memory is still 140.5MB. Free memory was 102.7MB in the beginning and 99.1MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.36ms. Allocated memory is still 140.5MB. Free memory was 99.1MB in the beginning and 96.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 567.92ms. Allocated memory is still 140.5MB. Free memory was 96.4MB in the beginning and 71.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 4401.16ms. Allocated memory was 140.5MB in the beginning and 182.5MB in the end (delta: 41.9MB). Free memory was 71.2MB in the beginning and 145.2MB in the end (delta: -73.9MB). Peak memory consumption was 69.8MB. Max. memory is 16.1GB. * Witness Printer took 31.22ms. Allocated memory is still 182.5MB. Free memory was 145.2MB in the beginning and 142.1MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 279 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 242 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 279 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1443 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1443 mSDsluCounter, 1317 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 853 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 464 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 626]: 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, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69baea03=0, head=0, tmp___0=0, pumpRunning=0, retValue_acc=0, NULL=1, retValue_acc=1, methaneLevelCritical=0, retValue_acc=1, tmp___0=1, \result=0, \result=1, retValue_acc=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33b5ce20=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21ff3438=29, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cb2c0ea=0, tmp=1, tmp___2=29, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35e75b5f=0, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d6a977c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@49ce4655=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70e2ad97=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e8229d8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@433fc618=0, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, tmp=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 626]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L425] int pumpRunning = 0; [L426] int systemActive = 1; [L682] int waterLevel = 1; [L683] int methaneLevelCritical = 0; [L771] int cleanupTimeShifts = 4; [L847] int retValue_acc ; [L848] int tmp ; [L852] FCALL select_helpers() [L853] FCALL select_features() [L854] CALL, EXPR valid_product() [L930] int retValue_acc ; [L933] retValue_acc = 1 [L934] return (retValue_acc); [L854] RET, EXPR valid_product() [L854] tmp = valid_product() [L856] COND TRUE \read(tmp) [L858] FCALL setup() [L859] CALL runTest() [L838] CALL test() [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 Loop: [L626] COND TRUE 1 [L628] COND TRUE splverifierCounter < 4 [L634] tmp = __VERIFIER_nondet_int() [L636] COND FALSE !(\read(tmp)) [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND TRUE \read(tmp___2) [L669] CALL timeShift() [L433] COND FALSE !(\read(pumpRunning)) [L440] COND TRUE \read(systemActive) [L442] CALL processEnvironment() [L488] int tmp ; [L491] COND FALSE !(\read(pumpRunning)) [L506] CALL processEnvironment__wrappee__lowWaterSensor() [L462] int tmp ; [L465] COND FALSE !(\read(pumpRunning)) [L480] FCALL processEnvironment__wrappee__base() [L506] RET processEnvironment__wrappee__lowWaterSensor() [L442] RET processEnvironment() [L448] CALL __utac_acc__Specification3_spec__1() [L871] int tmp ; [L872] int tmp___0 ; [L873] int tmp___1 ; [L877] CALL, EXPR isMethaneLevelCritical() [L721] int retValue_acc ; [L724] retValue_acc = methaneLevelCritical [L725] return (retValue_acc); [L877] RET, EXPR isMethaneLevelCritical() [L877] tmp = isMethaneLevelCritical() [L879] COND FALSE !(\read(tmp)) [L883] CALL, EXPR getWaterLevel() [L753] int retValue_acc ; [L756] retValue_acc = waterLevel [L757] return (retValue_acc); [L883] RET, EXPR getWaterLevel() [L883] tmp___0 = getWaterLevel() [L885] COND FALSE !(tmp___0 == 2) [L448] RET __utac_acc__Specification3_spec__1() [L669] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-02-21 04:16:55,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)