./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_spec5_product03.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 f1d7ff839ac0dc8440e702f25e5d82ddef639735 ................................................................................................................................................................................................................................................................................................................................................................................................ 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-dev-20ed64e [2021-08-27 16:20:37,312 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 16:20:37,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 16:20:37,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 16:20:37,340 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 16:20:37,341 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 16:20:37,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 16:20:37,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 16:20:37,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 16:20:37,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 16:20:37,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 16:20:37,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 16:20:37,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 16:20:37,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 16:20:37,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 16:20:37,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 16:20:37,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 16:20:37,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 16:20:37,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 16:20:37,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 16:20:37,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 16:20:37,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 16:20:37,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 16:20:37,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 16:20:37,356 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 16:20:37,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 16:20:37,356 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 16:20:37,357 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 16:20:37,357 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 16:20:37,358 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 16:20:37,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 16:20:37,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 16:20:37,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 16:20:37,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 16:20:37,360 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 16:20:37,360 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 16:20:37,361 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 16:20:37,361 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 16:20:37,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 16:20:37,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 16:20:37,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 16:20:37,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 16:20:37,377 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 16:20:37,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 16:20:37,378 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 16:20:37,378 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 16:20:37,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 16:20:37,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 16:20:37,379 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 16:20:37,379 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 16:20:37,379 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 16:20:37,380 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 16:20:37,380 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 16:20:37,380 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 16:20:37,380 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 16:20:37,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 16:20:37,381 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 16:20:37,381 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 16:20:37,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 16:20:37,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 16:20:37,381 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 16:20:37,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 16:20:37,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 16:20:37,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 16:20:37,382 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 16:20:37,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 16:20:37,382 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 16:20:37,383 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 16:20:37,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 16:20:37,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 16:20:37,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 16:20:37,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 16:20:37,384 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 16:20:37,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 16:20:37,385 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 16:20:37,385 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1d7ff839ac0dc8440e702f25e5d82ddef639735 [2021-08-27 16:20:37,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 16:20:37,643 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 16:20:37,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 16:20:37,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 16:20:37,646 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 16:20:37,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c [2021-08-27 16:20:37,691 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca3bfc0cf/f69cfcf34ac94bce9587a95bf0f8e0b3/FLAG6f59269a4 [2021-08-27 16:20:38,091 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 16:20:38,092 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c [2021-08-27 16:20:38,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca3bfc0cf/f69cfcf34ac94bce9587a95bf0f8e0b3/FLAG6f59269a4 [2021-08-27 16:20:38,107 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca3bfc0cf/f69cfcf34ac94bce9587a95bf0f8e0b3 [2021-08-27 16:20:38,109 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 16:20:38,110 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 16:20:38,111 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 16:20:38,111 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 16:20:38,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 16:20:38,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bc38e4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38, skipping insertion in model container [2021-08-27 16:20:38,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 16:20:38,139 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 16:20:38,221 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c[1281,1294] [2021-08-27 16:20:38,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:20:38,335 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 16:20:38,353 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c[1281,1294] [2021-08-27 16:20:38,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 16:20:38,409 INFO L208 MainTranslator]: Completed translation [2021-08-27 16:20:38,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38 WrapperNode [2021-08-27 16:20:38,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 16:20:38,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 16:20:38,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 16:20:38,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 16:20:38,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 16:20:38,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 16:20:38,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 16:20:38,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 16:20:38,483 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,500 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 16:20:38,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 16:20:38,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 16:20:38,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 16:20:38,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (1/1) ... [2021-08-27 16:20:38,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 16:20:38,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 16:20:38,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 16:20:38,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 16:20:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 16:20:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 16:20:38,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 16:20:38,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 16:20:39,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 16:20:39,169 INFO L299 CfgBuilder]: Removed 84 assume(true) statements. [2021-08-27 16:20:39,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:20:39 BoogieIcfgContainer [2021-08-27 16:20:39,171 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 16:20:39,171 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 16:20:39,171 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 16:20:39,173 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 16:20:39,174 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:20:39,174 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 04:20:38" (1/3) ... [2021-08-27 16:20:39,175 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46899860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:20:39, skipping insertion in model container [2021-08-27 16:20:39,175 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:20:39,175 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 04:20:38" (2/3) ... [2021-08-27 16:20:39,175 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@46899860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 04:20:39, skipping insertion in model container [2021-08-27 16:20:39,175 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 16:20:39,175 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:20:39" (3/3) ... [2021-08-27 16:20:39,176 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product03.cil.c [2021-08-27 16:20:39,202 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 16:20:39,203 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 16:20:39,203 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 16:20:39,203 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 16:20:39,203 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 16:20:39,203 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 16:20:39,203 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 16:20:39,203 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 16:20:39,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 65 states, 64 states have (on average 1.5) internal successors, (96), 64 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:20:39,229 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 16:20:39,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:20:39,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:20:39,235 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:20:39,236 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:20:39,236 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 16:20:39,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 65 states, 64 states have (on average 1.5) internal successors, (96), 64 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:20:39,247 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-08-27 16:20:39,248 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:20:39,248 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:20:39,249 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:20:39,249 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:20:39,259 INFO L791 eck$LassoCheckResult]: Stem: 47#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string52.base, #t~string52.offset, 1);call write~init~int(80, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(117, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(109, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(112, #t~string52.base, 4 + #t~string52.offset, 1);call write~init~int(58, #t~string52.base, 5 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 6 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string58.base, #t~string58.offset, 1);call write~init~int(32, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string60.base, #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 1 + #t~string60.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 39#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 18#L545true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 12#L553true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 44#L509true assume 0 != main_~tmp~3; 45#L480true ~switchedOnBeforeTS~0 := 0; 8#L766true havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 63#L787-1true [2021-08-27 16:20:39,260 INFO L793 eck$LassoCheckResult]: Loop: 63#L787-1true assume !false; 13#L703true assume test_~splverifierCounter~0 < 4; 55#L704true test_~tmp~4 := test_#t~nondet61;havoc test_#t~nondet61; 64#L712true assume !(0 != test_~tmp~4); 7#L712-1true test_~tmp___0~0 := test_#t~nondet62;havoc test_#t~nondet62; 62#L722true assume !(0 != test_~tmp___0~0); 38#L722-1true test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 27#L732true assume 0 != test_~tmp___2~0; 32#L738-1true havoc __utac_acc__Specification5_spec__2_#t~ret65;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 26#L636true __utac_acc__Specification5_spec__2_#t~ret65 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret65;havoc __utac_acc__Specification5_spec__2_#t~ret65; 30#L776true assume !(0 != ~pumpRunning~0); 65#L577true assume 0 != ~systemActive~0; 53#L584true havoc __utac_acc__Specification5_spec__3_#t~ret66, __utac_acc__Specification5_spec__3_#t~ret67, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 24#L884true __utac_acc__Specification5_spec__3_#t~ret66 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret66;havoc __utac_acc__Specification5_spec__3_#t~ret66; 48#L787true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 63#L787-1true [2021-08-27 16:20:39,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:20:39,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-08-27 16:20:39,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:20:39,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141803678] [2021-08-27 16:20:39,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:20:39,271 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:20:39,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:20:39,460 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:20:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:20:39,555 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:20:39,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:20:39,557 INFO L82 PathProgramCache]: Analyzing trace with hash -242843208, now seen corresponding path program 1 times [2021-08-27 16:20:39,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:20:39,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634178427] [2021-08-27 16:20:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:20:39,557 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:20:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:20:39,564 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:20:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:20:39,577 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:20:39,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:20:39,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1691182002, now seen corresponding path program 1 times [2021-08-27 16:20:39,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:20:39,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337561477] [2021-08-27 16:20:39,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:20:39,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:20:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 16:20:39,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 16:20:39,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 16:20:39,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337561477] [2021-08-27 16:20:39,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337561477] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 16:20:39,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 16:20:39,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 16:20:39,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148660256] [2021-08-27 16:20:39,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 16:20:39,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 16:20:39,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 16:20:39,817 INFO L87 Difference]: Start difference. First operand has 65 states, 64 states have (on average 1.5) internal successors, (96), 64 states have internal predecessors, (96), 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 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:20:39,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 16:20:39,923 INFO L93 Difference]: Finished difference Result 170 states and 230 transitions. [2021-08-27 16:20:39,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 16:20:39,925 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 230 transitions. [2021-08-27 16:20:39,929 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 75 [2021-08-27 16:20:39,932 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 152 states and 212 transitions. [2021-08-27 16:20:39,933 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2021-08-27 16:20:39,934 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2021-08-27 16:20:39,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 212 transitions. [2021-08-27 16:20:39,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 16:20:39,935 INFO L681 BuchiCegarLoop]: Abstraction has 152 states and 212 transitions. [2021-08-27 16:20:39,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 212 transitions. [2021-08-27 16:20:39,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 109. [2021-08-27 16:20:39,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.3577981651376148) internal successors, (148), 108 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 16:20:39,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 148 transitions. [2021-08-27 16:20:39,956 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 148 transitions. [2021-08-27 16:20:39,956 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 148 transitions. [2021-08-27 16:20:39,956 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 16:20:39,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 148 transitions. [2021-08-27 16:20:39,958 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 75 [2021-08-27 16:20:39,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 16:20:39,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 16:20:39,959 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:20:39,959 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 16:20:39,959 INFO L791 eck$LassoCheckResult]: Stem: 310#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string52.base, #t~string52.offset, 1);call write~init~int(80, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(117, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(109, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(112, #t~string52.base, 4 + #t~string52.offset, 1);call write~init~int(58, #t~string52.base, 5 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 6 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string58.base, #t~string58.offset, 1);call write~init~int(32, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string60.base, #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 1 + #t~string60.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 306#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 278#L545 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 270#L553 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 271#L509 assume 0 != main_~tmp~3; 309#L480 ~switchedOnBeforeTS~0 := 0; 263#L766 havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 264#L787-1 [2021-08-27 16:20:39,959 INFO L793 eck$LassoCheckResult]: Loop: 264#L787-1 assume !false; 332#L703 assume test_~splverifierCounter~0 < 4; 314#L704 test_~tmp~4 := test_#t~nondet61;havoc test_#t~nondet61; 315#L712 assume !(0 != test_~tmp~4); 261#L712-1 test_~tmp___0~0 := test_#t~nondet62;havoc test_#t~nondet62; 262#L722 assume !(0 != test_~tmp___0~0); 300#L722-1 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 305#L732 assume 0 != test_~tmp___2~0; 356#L738-1 havoc __utac_acc__Specification5_spec__2_#t~ret65;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 355#L636 __utac_acc__Specification5_spec__2_#t~ret65 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret65;havoc __utac_acc__Specification5_spec__2_#t~ret65; 354#L776 assume !(0 != ~pumpRunning~0); 353#L577 assume 0 != ~systemActive~0; 345#L584 havoc __utac_acc__Specification5_spec__3_#t~ret66, __utac_acc__Specification5_spec__3_#t~ret67, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 344#L884 __utac_acc__Specification5_spec__3_#t~ret66 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret66;havoc __utac_acc__Specification5_spec__3_#t~ret66; 343#L787 assume 2 != __utac_acc__Specification5_spec__3_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 342#L636-1 __utac_acc__Specification5_spec__3_#t~ret67 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret67;havoc __utac_acc__Specification5_spec__3_#t~ret67; 340#L791 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 264#L787-1 [2021-08-27 16:20:39,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:20:39,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-08-27 16:20:39,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:20:39,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464011859] [2021-08-27 16:20:39,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:20:39,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:20:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:20:39,985 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:20:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:20:40,013 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:20:40,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:20:40,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1444103597, now seen corresponding path program 1 times [2021-08-27 16:20:40,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:20:40,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926242001] [2021-08-27 16:20:40,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:20:40,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:20:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:20:40,018 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:20:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:20:40,022 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:20:40,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 16:20:40,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1728251341, now seen corresponding path program 1 times [2021-08-27 16:20:40,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 16:20:40,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052885536] [2021-08-27 16:20:40,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 16:20:40,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 16:20:40,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:20:40,043 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 16:20:40,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 16:20:40,090 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 16:21:21,715 WARN L207 SmtUtils]: Spent 41.44 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-08-27 16:22:04,849 WARN L207 SmtUtils]: Spent 20.67 s on a formula simplification that was a NOOP. DAG size: 435 [2021-08-27 16:22:04,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 04:22:04 BoogieIcfgContainer [2021-08-27 16:22:04,986 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 16:22:04,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 16:22:04,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 16:22:04,987 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 16:22:04,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 04:20:39" (3/4) ... [2021-08-27 16:22:04,989 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 16:22:05,018 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 16:22:05,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 16:22:05,020 INFO L168 Benchmark]: Toolchain (without parser) took 86909.16 ms. Allocated memory was 62.9 MB in the beginning and 98.6 MB in the end (delta: 35.7 MB). Free memory was 45.0 MB in the beginning and 66.9 MB in the end (delta: -21.9 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:05,020 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 16:22:05,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.73 ms. Allocated memory is still 62.9 MB. Free memory was 44.8 MB in the beginning and 41.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:05,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.16 ms. Allocated memory is still 62.9 MB. Free memory was 41.1 MB in the beginning and 38.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:05,021 INFO L168 Benchmark]: Boogie Preprocessor took 28.85 ms. Allocated memory is still 62.9 MB. Free memory was 38.3 MB in the beginning and 36.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:05,022 INFO L168 Benchmark]: RCFGBuilder took 668.54 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 36.2 MB in the beginning and 48.8 MB in the end (delta: -12.6 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:05,022 INFO L168 Benchmark]: BuchiAutomizer took 85814.76 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.4 MB in the beginning and 69.0 MB in the end (delta: -20.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:05,023 INFO L168 Benchmark]: Witness Printer took 32.26 ms. Allocated memory is still 98.6 MB. Free memory was 69.0 MB in the beginning and 66.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 16:22:05,025 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 62.9 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.73 ms. Allocated memory is still 62.9 MB. Free memory was 44.8 MB in the beginning and 41.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.16 ms. Allocated memory is still 62.9 MB. Free memory was 41.1 MB in the beginning and 38.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.85 ms. Allocated memory is still 62.9 MB. Free memory was 38.3 MB in the beginning and 36.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 668.54 ms. Allocated memory was 62.9 MB in the beginning and 81.8 MB in the end (delta: 18.9 MB). Free memory was 36.2 MB in the beginning and 48.8 MB in the end (delta: -12.6 MB). Peak memory consumption was 21.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 85814.76 ms. Allocated memory was 81.8 MB in the beginning and 98.6 MB in the end (delta: 16.8 MB). Free memory was 48.4 MB in the beginning and 69.0 MB in the end (delta: -20.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. * Witness Printer took 32.26 ms. Allocated memory is still 98.6 MB. Free memory was 69.0 MB in the beginning and 66.9 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 5 locations. The remainder module has 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 85.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 85.5s. 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 12.7ms AutomataMinimizationTime, 1 MinimizatonAttempts, 43 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 132 SDtfs, 239 SDslu, 247 SDs, 0 SdLazy, 67 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.0ms 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: 702]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=23327} State at position 1 is {NULL=0, NULL=0, NULL=23327, NULL=31320, retValue_acc=0, NULL=31300, NULL=0, NULL=31303, NULL=31316, NULL=31312, methaneLevelCritical=0, NULL=31299, tmp=0, tmp=1, NULL=0, tmp___1=0, NULL=31318, NULL=0, NULL=0, NULL=31298, NULL=31322, NULL=31301, cleanupTimeShifts=4, NULL=31302, switchedOnBeforeTS=0, NULL=31319, NULL=31309, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=31314, \result=1, NULL=0, NULL=0, NULL=31313, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1350d027=0, NULL=0, tmp___0=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@438f4054=0, NULL=31315, NULL=0, NULL=0, NULL=31306, \result=1, head=0, pumpRunning=0, \result=0, tmp___0=0, NULL=31310, tmp=1, NULL=0, NULL=0, NULL=0, NULL=31321, retValue_acc=1, NULL=31317, NULL=0, NULL=0, NULL=31304, NULL=0, retValue_acc=1, NULL=31308, tmp___2=60, NULL=0, NULL=31305, NULL=31296, splverifierCounter=0, NULL=0, NULL=23328, NULL=31307, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16230214=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59cc1f02=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b5e482d=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e25d5d2=60, NULL=31297, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d368d23=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28a530af=0, NULL=0, NULL=0, NULL=31311, NULL=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L220] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L417] int cleanupTimeShifts = 4; [L565] int pumpRunning = 0; [L566] int systemActive = 1; [L760] int switchedOnBeforeTS ; [L809] int waterLevel = 1; [L810] int methaneLevelCritical = 0; [L500] int retValue_acc ; [L501] int tmp ; [L549] int retValue_acc ; [L552] retValue_acc = 1 [L553] return (retValue_acc); [L507] tmp = valid_product() [L509] COND TRUE \read(tmp) [L765] switchedOnBeforeTS = 0 [L693] int splverifierCounter ; [L694] int tmp ; [L695] int tmp___0 ; [L696] int tmp___1 ; [L697] int tmp___2 ; [L700] splverifierCounter = 0 Loop: [L702] COND TRUE 1 [L704] COND TRUE splverifierCounter < 4 [L710] tmp = __VERIFIER_nondet_int() [L712] COND FALSE !(\read(tmp)) [L720] tmp___0 = __VERIFIER_nondet_int() [L722] COND FALSE !(\read(tmp___0)) [L730] tmp___2 = __VERIFIER_nondet_int() [L732] COND TRUE \read(tmp___2) [L632] int retValue_acc ; [L635] retValue_acc = pumpRunning [L636] return (retValue_acc); [L774] switchedOnBeforeTS = isPumpRunning() [L577] COND FALSE !(\read(pumpRunning)) [L584] COND TRUE \read(systemActive) [L780] int tmp ; [L781] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = waterLevel [L884] return (retValue_acc); [L785] tmp = getWaterLevel() [L787] COND TRUE tmp != 2 [L632] int retValue_acc ; [L635] retValue_acc = pumpRunning [L636] return (retValue_acc); [L789] tmp___0 = isPumpRunning() [L791] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 16:22:05,071 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...