./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product17.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 10f05e3ec3dc20c87bc900eaaa9b2990393e6df5 ........................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-06 20:28:11,337 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 20:28:11,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 20:28:11,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 20:28:11,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 20:28:11,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 20:28:11,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 20:28:11,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 20:28:11,376 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 20:28:11,377 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 20:28:11,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 20:28:11,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 20:28:11,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 20:28:11,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 20:28:11,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 20:28:11,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 20:28:11,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 20:28:11,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 20:28:11,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 20:28:11,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 20:28:11,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 20:28:11,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 20:28:11,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 20:28:11,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 20:28:11,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 20:28:11,389 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 20:28:11,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 20:28:11,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 20:28:11,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 20:28:11,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 20:28:11,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 20:28:11,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 20:28:11,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 20:28:11,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 20:28:11,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 20:28:11,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 20:28:11,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 20:28:11,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 20:28:11,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 20:28:11,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 20:28:11,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 20:28:11,397 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-07-06 20:28:11,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 20:28:11,412 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 20:28:11,413 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 20:28:11,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 20:28:11,413 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 20:28:11,413 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-07-06 20:28:11,413 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-07-06 20:28:11,414 INFO L138 SettingsManager]: * Use old map elimination=false [2021-07-06 20:28:11,414 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-07-06 20:28:11,414 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-07-06 20:28:11,414 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-07-06 20:28:11,414 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 20:28:11,415 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-06 20:28:11,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 20:28:11,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 20:28:11,415 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-06 20:28:11,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 20:28:11,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-07-06 20:28:11,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-07-06 20:28:11,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-07-06 20:28:11,416 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-06 20:28:11,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 20:28:11,416 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-07-06 20:28:11,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 20:28:11,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-07-06 20:28:11,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 20:28:11,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 20:28:11,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 20:28:11,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 20:28:11,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 20:28:11,418 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-07-06 20:28:11,419 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10f05e3ec3dc20c87bc900eaaa9b2990393e6df5 [2021-07-06 20:28:11,634 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 20:28:11,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 20:28:11,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 20:28:11,649 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 20:28:11,652 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 20:28:11,653 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c [2021-07-06 20:28:11,694 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69596fb8b/e204ece76730487685cacf0671395365/FLAGf21ffe677 [2021-07-06 20:28:12,120 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 20:28:12,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product17.cil.c [2021-07-06 20:28:12,135 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69596fb8b/e204ece76730487685cacf0671395365/FLAGf21ffe677 [2021-07-06 20:28:12,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69596fb8b/e204ece76730487685cacf0671395365 [2021-07-06 20:28:12,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 20:28:12,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 20:28:12,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 20:28:12,154 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 20:28:12,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 20:28:12,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfbe32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12, skipping insertion in model container [2021-07-06 20:28:12,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 20:28:12,202 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 20:28:12,334 WARN L224 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_spec4_product17.cil.c[2999,3012] [2021-07-06 20:28:12,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:28:12,448 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 20:28:12,458 WARN L224 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_spec4_product17.cil.c[2999,3012] [2021-07-06 20:28:12,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 20:28:12,506 INFO L208 MainTranslator]: Completed translation [2021-07-06 20:28:12,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12 WrapperNode [2021-07-06 20:28:12,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 20:28:12,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 20:28:12,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 20:28:12,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 20:28:12,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 20:28:12,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 20:28:12,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 20:28:12,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 20:28:12,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,577 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 20:28:12,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 20:28:12,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 20:28:12,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 20:28:12,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (1/1) ... [2021-07-06 20:28:12,597 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-07-06 20:28:12,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 20:28:12,624 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-07-06 20:28:12,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-07-06 20:28:12,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-06 20:28:12,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-06 20:28:12,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 20:28:12,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 20:28:13,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 20:28:13,188 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-07-06 20:28:13,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:28:13 BoogieIcfgContainer [2021-07-06 20:28:13,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 20:28:13,190 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-07-06 20:28:13,190 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-07-06 20:28:13,192 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-07-06 20:28:13,192 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:28:13,192 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.07 08:28:12" (1/3) ... [2021-07-06 20:28:13,193 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31b75209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:28:13, skipping insertion in model container [2021-07-06 20:28:13,193 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:28:13,193 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 08:28:12" (2/3) ... [2021-07-06 20:28:13,193 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@31b75209 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.07 08:28:13, skipping insertion in model container [2021-07-06 20:28:13,194 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-07-06 20:28:13,194 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:28:13" (3/3) ... [2021-07-06 20:28:13,195 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product17.cil.c [2021-07-06 20:28:13,218 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-07-06 20:28:13,219 INFO L360 BuchiCegarLoop]: Hoare is false [2021-07-06 20:28:13,219 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-07-06 20:28:13,219 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-06 20:28:13,219 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-06 20:28:13,219 INFO L364 BuchiCegarLoop]: Difference is false [2021-07-06 20:28:13,219 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-06 20:28:13,219 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-07-06 20:28:13,228 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:28:13,240 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-07-06 20:28:13,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:28:13,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:28:13,245 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:28:13,246 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:28:13,246 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-07-06 20:28:13,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:28:13,249 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-07-06 20:28:13,249 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:28:13,249 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:28:13,250 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:28:13,250 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:28:13,253 INFO L791 eck$LassoCheckResult]: Stem: 36#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 15#L-1true havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 59#L206true havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 71#L214true main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 38#L161true assume 0 != main_~tmp~1; 63#L134true havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 52#L53-1true [2021-07-06 20:28:13,253 INFO L793 eck$LassoCheckResult]: Loop: 52#L53-1true assume !false; 4#L230true assume test_~splverifierCounter~0 < 4; 29#L231true test_~tmp~2 := test_#t~nondet11;havoc test_#t~nondet11; 43#L239true assume !(0 != test_~tmp~2); 60#L239-1true test_~tmp___0~1 := test_#t~nondet12;havoc test_#t~nondet12; 41#L249true assume !(0 != test_~tmp___0~1); 39#L249-1true test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 23#L259true assume 0 != test_~tmp___2~0; 48#L265-2true assume !(0 != ~pumpRunning~0); 35#L297true assume !(0 != ~systemActive~0); 40#L304true havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 61#L517true __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 69#L53true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 52#L53-1true [2021-07-06 20:28:13,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:28:13,257 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-07-06 20:28:13,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:28:13,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442879026] [2021-07-06 20:28:13,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:28:13,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:28:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:28:13,433 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:28:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:28:13,484 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:28:13,520 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:28:13,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:28:13,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1681683774, now seen corresponding path program 1 times [2021-07-06 20:28:13,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:28:13,524 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383156918] [2021-07-06 20:28:13,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:28:13,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:28:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:28:13,535 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:28:13,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:28:13,544 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:28:13,550 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:28:13,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:28:13,552 INFO L82 PathProgramCache]: Analyzing trace with hash 32595164, now seen corresponding path program 1 times [2021-07-06 20:28:13,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:28:13,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955181543] [2021-07-06 20:28:13,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:28:13,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:28:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 20:28:13,625 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:28:13,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:28:13,637 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:28:13,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:28:13,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:28:13,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 20:28:13,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:28:13,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-06 20:28:13,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:28:13,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 20:28:13,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 20:28:13,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 20:28:13,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955181543] [2021-07-06 20:28:13,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955181543] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 20:28:13,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 20:28:13,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 20:28:13,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819205280] [2021-07-06 20:28:13,690 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:28:13,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-06 20:28:13,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 20:28:13,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-06 20:28:13,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-07-06 20:28:13,731 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:28:13,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 20:28:13,838 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2021-07-06 20:28:13,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-06 20:28:13,839 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2021-07-06 20:28:13,841 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-07-06 20:28:13,843 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2021-07-06 20:28:13,844 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2021-07-06 20:28:13,844 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2021-07-06 20:28:13,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2021-07-06 20:28:13,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-06 20:28:13,845 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-07-06 20:28:13,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2021-07-06 20:28:13,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-07-06 20:28:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 64 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 20:28:13,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2021-07-06 20:28:13,863 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-07-06 20:28:13,863 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-07-06 20:28:13,863 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-07-06 20:28:13,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2021-07-06 20:28:13,864 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-07-06 20:28:13,864 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-07-06 20:28:13,864 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-07-06 20:28:13,865 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-07-06 20:28:13,865 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 20:28:13,865 INFO L791 eck$LassoCheckResult]: Stem: 204#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(13);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string24.base, #t~string24.offset, 1);call write~init~int(80, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(117, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(109, #t~string24.base, 3 + #t~string24.offset, 1);call write~init~int(112, #t~string24.base, 4 + #t~string24.offset, 1);call write~init~int(58, #t~string24.base, 5 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 6 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string26.base, #t~string26.offset, 1);call write~init~int(110, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(102, #t~string28.base, 2 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 3 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string30.base, #t~string30.offset, 1);call write~init~int(32, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string32.base, #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 1 + #t~string32.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(13);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string37.base, #t~string37.offset, 1);call write~init~int(77, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(101, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(116, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(104, #t~string37.base, 4 + #t~string37.offset, 1);call write~init~int(58, #t~string37.base, 5 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 6 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string39.base, #t~string39.offset, 1);call write~init~int(82, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(73, #t~string39.base, 2 + #t~string39.offset, 1);call write~init~int(84, #t~string39.base, 3 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 4 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string41.base, #t~string41.offset, 1);call write~init~int(75, #t~string41.base, 1 + #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 2 + #t~string41.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string43.base, #t~string43.offset, 1);call write~init~int(0, #t~string43.base, 1 + #t~string43.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 179#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 180#L206 havoc valid_product_#res;havoc valid_product_~retValue_acc~2;havoc valid_product_~retValue_acc~2;valid_product_~retValue_acc~2 := 1;valid_product_#res := valid_product_~retValue_acc~2; 225#L214 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 205#L161 assume 0 != main_~tmp~1; 206#L134 havoc test_#t~nondet11, test_#t~nondet12, test_#t~nondet13, test_#t~nondet14, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 218#L53-1 [2021-07-06 20:28:13,865 INFO L793 eck$LassoCheckResult]: Loop: 218#L53-1 assume !false; 166#L230 assume test_~splverifierCounter~0 < 4; 167#L231 test_~tmp~2 := test_#t~nondet11;havoc test_#t~nondet11; 197#L239 assume !(0 != test_~tmp~2); 174#L239-1 test_~tmp___0~1 := test_#t~nondet12;havoc test_#t~nondet12; 208#L249 assume !(0 != test_~tmp___0~1); 195#L249-1 test_~tmp___2~0 := test_#t~nondet13;havoc test_#t~nondet13; 190#L259 assume 0 != test_~tmp___2~0; 191#L265-2 assume !(0 != ~pumpRunning~0); 203#L297 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret15, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 181#L329 assume !(0 != ~pumpRunning~0); 182#L304 havoc __utac_acc__Specification4_spec__1_#t~ret7, __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 207#L517 __utac_acc__Specification4_spec__1_#t~ret7 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret7;havoc __utac_acc__Specification4_spec__1_#t~ret7; 224#L53 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 218#L53-1 [2021-07-06 20:28:13,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:28:13,866 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-07-06 20:28:13,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:28:13,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010990125] [2021-07-06 20:28:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:28:13,867 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:28:13,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:28:13,890 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:28:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:28:13,915 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:28:13,923 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:28:13,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:28:13,923 INFO L82 PathProgramCache]: Analyzing trace with hash -619582373, now seen corresponding path program 1 times [2021-07-06 20:28:13,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:28:13,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986110961] [2021-07-06 20:28:13,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:28:13,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:28:13,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:28:13,927 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:28:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:28:13,929 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:28:13,930 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:28:13,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 20:28:13,931 INFO L82 PathProgramCache]: Analyzing trace with hash 983457153, now seen corresponding path program 1 times [2021-07-06 20:28:13,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 20:28:13,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046879245] [2021-07-06 20:28:13,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 20:28:13,931 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 20:28:13,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:28:13,976 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:28:13,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 20:28:14,004 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 20:28:14,013 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 20:28:14,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:28:14,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-06 20:28:53,198 WARN L205 SmtUtils]: Spent 39.14 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-07-06 20:28:53,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 20:28:53,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2127 [2021-07-06 20:29:12,859 WARN L205 SmtUtils]: Spent 19.60 s on a formula simplification that was a NOOP. DAG size: 433 [2021-07-06 20:29:12,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.07 08:29:12 BoogieIcfgContainer [2021-07-06 20:29:12,993 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-07-06 20:29:12,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 20:29:12,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 20:29:12,994 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 20:29:12,994 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 08:28:13" (3/4) ... [2021-07-06 20:29:12,996 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-07-06 20:29:13,024 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 20:29:13,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 20:29:13,025 INFO L168 Benchmark]: Toolchain (without parser) took 60873.14 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 53.3 MB in the beginning and 76.9 MB in the end (delta: -23.6 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-07-06 20:29:13,025 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 71.3 MB. Free memory is still 52.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 20:29:13,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.37 ms. Allocated memory is still 71.3 MB. Free memory was 53.0 MB in the beginning and 45.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-07-06 20:29:13,026 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.90 ms. Allocated memory is still 71.3 MB. Free memory was 45.8 MB in the beginning and 43.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:29:13,026 INFO L168 Benchmark]: Boogie Preprocessor took 25.11 ms. Allocated memory is still 71.3 MB. Free memory was 43.1 MB in the beginning and 41.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:29:13,027 INFO L168 Benchmark]: RCFGBuilder took 597.63 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 41.0 MB in the beginning and 50.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. [2021-07-06 20:29:13,027 INFO L168 Benchmark]: BuchiAutomizer took 59803.68 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.6 MB in the beginning and 78.9 MB in the end (delta: -28.3 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2021-07-06 20:29:13,028 INFO L168 Benchmark]: Witness Printer took 30.39 ms. Allocated memory is still 104.9 MB. Free memory was 78.9 MB in the beginning and 76.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 20:29:13,030 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 71.3 MB. Free memory is still 52.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.37 ms. Allocated memory is still 71.3 MB. Free memory was 53.0 MB in the beginning and 45.8 MB in the end (delta: 7.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.90 ms. Allocated memory is still 71.3 MB. Free memory was 45.8 MB in the beginning and 43.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.11 ms. Allocated memory is still 71.3 MB. Free memory was 43.1 MB in the beginning and 41.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 597.63 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 41.0 MB in the beginning and 50.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 19.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 59803.68 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 50.6 MB in the beginning and 78.9 MB in the end (delta: -28.3 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. * Witness Printer took 30.39 ms. Allocated memory is still 104.9 MB. Free memory was 78.9 MB in the beginning and 76.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 65 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 59.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 59.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 9.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 65 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 92 SDtfs, 283 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 229]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13264} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=13264, NULL=25448, NULL=0, NULL=25452, NULL=0, NULL=25450, NULL=13265, methaneLevelCritical=0, NULL=25447, tmp=0, NULL=0, NULL=13266, NULL=0, NULL=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c2a693a=0, NULL=0, NULL=0, NULL=25457, tmp___0=0, NULL=25464, NULL=25454, cleanupTimeShifts=4, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@82f0e67=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a6fe508=0, NULL=13272, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70232a54=0, NULL=25459, head=0, pumpRunning=0, \result=0, NULL=25462, NULL=25456, tmp=1, NULL=0, NULL=0, NULL=13273, NULL=13270, tmp=1, NULL=25455, NULL=0, NULL=0, NULL=25451, NULL=0, NULL=0, NULL=25463, NULL=0, retValue_acc=1, retValue_acc=1, tmp___2=51, NULL=0, NULL=13268, tmp___0=0, NULL=25449, splverifierCounter=0, NULL=0, NULL=25465, NULL=25460, NULL=25461, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@779a7347=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d9dac1=51, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50cad37e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@138bd441=0, tmp=0, head=0, NULL=0, NULL=0, NULL=25458, NULL=0, NULL=0, NULL=13267, NULL=0, NULL=0, NULL=0, NULL=25453, NULL=13269, NULL=13271} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L71] int cleanupTimeShifts = 4; [L290] int pumpRunning = 0; [L291] int systemActive = 1; [L442] int waterLevel = 1; [L443] int methaneLevelCritical = 0; [L700] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L152] int retValue_acc ; [L153] int tmp ; [L210] int retValue_acc ; [L213] retValue_acc = 1 [L214] return (retValue_acc); [L159] tmp = valid_product() [L161] COND TRUE \read(tmp) [L220] int splverifierCounter ; [L221] int tmp ; [L222] int tmp___0 ; [L223] int tmp___1 ; [L224] int tmp___2 ; [L227] splverifierCounter = 0 Loop: [L229] COND TRUE 1 [L231] COND TRUE splverifierCounter < 4 [L237] tmp = __VERIFIER_nondet_int() [L239] COND FALSE !(\read(tmp)) [L247] tmp___0 = __VERIFIER_nondet_int() [L249] COND FALSE !(\read(tmp___0)) [L257] tmp___2 = __VERIFIER_nondet_int() [L259] COND TRUE \read(tmp___2) [L297] COND FALSE !(\read(pumpRunning)) [L304] COND TRUE \read(systemActive) [L326] int tmp ; [L329] COND FALSE !(\read(pumpRunning)) [L46] int tmp ; [L47] int tmp___0 ; [L513] int retValue_acc ; [L516] retValue_acc = waterLevel [L517] return (retValue_acc); [L51] tmp = getWaterLevel() [L53] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-07-06 20:29:13,084 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...