./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD --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 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef ....................................................................................................................................................................................................................................................................................................................................................................................... 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-b2eff8b [2021-10-28 23:48:32,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:48:32,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:48:32,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:48:32,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:48:32,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:48:32,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:48:32,399 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:48:32,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:48:32,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:48:32,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:48:32,405 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:48:32,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:48:32,407 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:48:32,408 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:48:32,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:48:32,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:48:32,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:48:32,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:48:32,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:48:32,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:48:32,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:48:32,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:48:32,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:48:32,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:48:32,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:48:32,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:48:32,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:48:32,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:48:32,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:48:32,452 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:48:32,453 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:48:32,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:48:32,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:48:32,457 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:48:32,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:48:32,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:48:32,458 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:48:32,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:48:32,459 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:48:32,460 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:48:32,461 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:48:32,492 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:48:32,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:48:32,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:48:32,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:48:32,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:48:32,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:48:32,494 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:48:32,495 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:48:32,495 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:48:32,495 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:48:32,495 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:48:32,495 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:48:32,496 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:48:32,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:48:32,496 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:48:32,496 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:48:32,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:48:32,497 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:48:32,497 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:48:32,497 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:48:32,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:48:32,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:48:32,498 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:48:32,498 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:48:32,498 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:48:32,499 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:48:32,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:48:32,499 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:48:32,499 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:48:32,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:48:32,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:48:32,500 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:48:32,501 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:48:32,501 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef [2021-10-28 23:48:32,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:48:32,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:48:32,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:48:32,821 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:48:32,822 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:48:32,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2021-10-28 23:48:32,928 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/data/29db314e9/cc159ebb0cda48ba9fde8292a3cf1b5a/FLAGe688f471c [2021-10-28 23:48:33,552 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:48:33,556 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2021-10-28 23:48:33,575 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/data/29db314e9/cc159ebb0cda48ba9fde8292a3cf1b5a/FLAGe688f471c [2021-10-28 23:48:33,800 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/data/29db314e9/cc159ebb0cda48ba9fde8292a3cf1b5a [2021-10-28 23:48:33,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:48:33,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:48:33,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:33,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:48:33,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:48:33,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:33" (1/1) ... [2021-10-28 23:48:33,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fe8ea2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:33, skipping insertion in model container [2021-10-28 23:48:33,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:48:33" (1/1) ... [2021-10-28 23:48:33,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:48:33,890 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:48:34,096 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c[2897,2910] [2021-10-28 23:48:34,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:34,198 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:48:34,216 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c[2897,2910] [2021-10-28 23:48:34,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:48:34,294 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:48:34,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34 WrapperNode [2021-10-28 23:48:34,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:48:34,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:48:34,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:48:34,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:48:34,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (1/1) ... [2021-10-28 23:48:34,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (1/1) ... [2021-10-28 23:48:34,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:48:34,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:48:34,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:48:34,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:48:34,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (1/1) ... [2021-10-28 23:48:34,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (1/1) ... [2021-10-28 23:48:34,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (1/1) ... [2021-10-28 23:48:34,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (1/1) ... [2021-10-28 23:48:34,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (1/1) ... [2021-10-28 23:48:34,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (1/1) ... [2021-10-28 23:48:34,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (1/1) ... [2021-10-28 23:48:34,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:48:34,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:48:34,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:48:34,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:48:34,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (1/1) ... [2021-10-28 23:48:34,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:48:34,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:48:34,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:48:34,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:48:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:48:34,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:48:34,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:48:34,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:48:35,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:48:35,390 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2021-10-28 23:48:35,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:35 BoogieIcfgContainer [2021-10-28 23:48:35,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:48:35,394 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:48:35,394 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:48:35,398 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:48:35,399 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:48:35,400 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:48:33" (1/3) ... [2021-10-28 23:48:35,402 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7817d7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:48:35, skipping insertion in model container [2021-10-28 23:48:35,403 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:48:35,403 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:48:34" (2/3) ... [2021-10-28 23:48:35,403 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7817d7ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:48:35, skipping insertion in model container [2021-10-28 23:48:35,404 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:48:35,404 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:35" (3/3) ... [2021-10-28 23:48:35,406 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2021-10-28 23:48:35,470 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:48:35,471 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:48:35,471 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:48:35,471 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:48:35,471 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:48:35,472 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:48:35,472 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:48:35,472 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:48:35,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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) [2021-10-28 23:48:35,532 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 23:48:35,532 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:48:35,532 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:48:35,541 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:48:35,541 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:35,541 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:48:35,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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) [2021-10-28 23:48:35,558 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-28 23:48:35,558 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:48:35,558 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:48:35,560 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:48:35,560 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:35,571 INFO L791 eck$LassoCheckResult]: Stem: 56#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 43#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 4#L561true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 35#L569true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 61#L140true assume 0 != main_~tmp~0; 47#L113true havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, 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; 51#L173-1true [2021-10-28 23:48:35,572 INFO L793 eck$LassoCheckResult]: Loop: 51#L173-1true assume !false; 57#L296true assume test_~splverifierCounter~0 < 4; 34#L297true test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 70#L305true assume !(0 != test_~tmp~2); 20#L305-1true test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 48#L315true assume !(0 != test_~tmp___0~1); 55#L315-1true test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 76#L325true assume 0 != test_~tmp___2~0; 27#L331-1true assume !(0 != ~pumpRunning~0); 8#L361true assume !(0 != ~systemActive~0); 44#L368true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 9#L270true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 62#L173true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 51#L173-1true [2021-10-28 23:48:35,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:35,578 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 23:48:35,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:35,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307897661] [2021-10-28 23:48:35,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:35,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:35,925 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:36,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:36,042 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:36,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1673095029, now seen corresponding path program 1 times [2021-10-28 23:48:36,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:36,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566513698] [2021-10-28 23:48:36,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:36,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:36,059 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:36,114 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:36,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:36,121 INFO L85 PathProgramCache]: Analyzing trace with hash 41183909, now seen corresponding path program 1 times [2021-10-28 23:48:36,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:36,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752119287] [2021-10-28 23:48:36,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:36,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:48:36,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:48:36,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:48:36,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752119287] [2021-10-28 23:48:36,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752119287] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:48:36,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:48:36,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:48:36,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195779821] [2021-10-28 23:48:36,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:48:36,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:48:36,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:48:36,539 INFO L87 Difference]: Start difference. First operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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) [2021-10-28 23:48:36,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:48:36,899 INFO L93 Difference]: Finished difference Result 192 states and 264 transitions. [2021-10-28 23:48:36,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:48:36,901 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 192 states and 264 transitions. [2021-10-28 23:48:36,908 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 121 [2021-10-28 23:48:36,915 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 192 states to 171 states and 243 transitions. [2021-10-28 23:48:36,916 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 171 [2021-10-28 23:48:36,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 171 [2021-10-28 23:48:36,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 171 states and 243 transitions. [2021-10-28 23:48:36,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:48:36,924 INFO L681 BuchiCegarLoop]: Abstraction has 171 states and 243 transitions. [2021-10-28 23:48:36,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states and 243 transitions. [2021-10-28 23:48:36,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 108. [2021-10-28 23:48:36,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 108 states have (on average 1.4166666666666667) internal successors, (153), 107 states have internal predecessors, (153), 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) [2021-10-28 23:48:36,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 153 transitions. [2021-10-28 23:48:36,965 INFO L704 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2021-10-28 23:48:36,966 INFO L587 BuchiCegarLoop]: Abstraction has 108 states and 153 transitions. [2021-10-28 23:48:36,966 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:48:36,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states and 153 transitions. [2021-10-28 23:48:36,969 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 76 [2021-10-28 23:48:36,969 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:48:36,969 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:48:36,970 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:48:36,970 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:48:36,970 INFO L791 eck$LassoCheckResult]: Stem: 348#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string13.base, #t~string13.offset, 1);call write~init~int(77, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(101, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(116, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(104, #t~string13.base, 4 + #t~string13.offset, 1);call write~init~int(58, #t~string13.base, 5 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 6 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string15.base, #t~string15.offset, 1);call write~init~int(82, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(73, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(84, #t~string15.base, 3 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 4 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(75, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string19.base, #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 1 + #t~string19.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #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(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 340#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 284#L561 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 285#L569 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 331#L140 assume 0 != main_~tmp~0; 344#L113 havoc test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, 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; 345#L173-1 [2021-10-28 23:48:36,971 INFO L793 eck$LassoCheckResult]: Loop: 345#L173-1 assume !false; 346#L296 assume test_~splverifierCounter~0 < 4; 329#L297 test_~tmp~2 := test_#t~nondet20;havoc test_#t~nondet20; 330#L305 assume !(0 != test_~tmp~2); 317#L305-1 test_~tmp___0~1 := test_#t~nondet21;havoc test_#t~nondet21; 318#L315 assume !(0 != test_~tmp___0~1); 339#L315-1 test_~tmp___2~0 := test_#t~nondet22;havoc test_#t~nondet22; 347#L325 assume 0 != test_~tmp___2~0; 298#L331-1 assume !(0 != ~pumpRunning~0); 292#L361 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret24, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 293#L393 assume !(0 != ~pumpRunning~0); 309#L368 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 294#L270 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 295#L173 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 345#L173-1 [2021-10-28 23:48:36,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:36,972 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 23:48:36,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:36,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096721129] [2021-10-28 23:48:36,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:36,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:37,023 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:37,086 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:37,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:37,087 INFO L85 PathProgramCache]: Analyzing trace with hash -353331269, now seen corresponding path program 1 times [2021-10-28 23:48:37,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:37,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742922964] [2021-10-28 23:48:37,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:37,088 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:37,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:37,093 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:37,101 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:48:37,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:48:37,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1249708257, now seen corresponding path program 1 times [2021-10-28 23:48:37,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:48:37,103 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606992162] [2021-10-28 23:48:37,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:48:37,104 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:48:37,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:37,161 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:48:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:48:37,288 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:49:42,190 WARN L207 SmtUtils]: Spent 1.08 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 23:50:46,876 WARN L207 SmtUtils]: Spent 32.36 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 23:50:47,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:50:47 BoogieIcfgContainer [2021-10-28 23:50:47,028 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:50:47,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:50:47,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:50:47,029 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:50:47,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:48:35" (3/4) ... [2021-10-28 23:50:47,032 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:50:47,095 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:50:47,099 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:50:47,100 INFO L168 Benchmark]: Toolchain (without parser) took 133293.49 ms. Allocated memory was 94.4 MB in the beginning and 148.9 MB in the end (delta: 54.5 MB). Free memory was 58.0 MB in the beginning and 101.5 MB in the end (delta: -43.5 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:47,102 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 94.4 MB. Free memory was 66.7 MB in the beginning and 66.6 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:50:47,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 487.38 ms. Allocated memory is still 94.4 MB. Free memory was 57.8 MB in the beginning and 61.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:47,103 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.69 ms. Allocated memory is still 94.4 MB. Free memory was 61.4 MB in the beginning and 58.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:47,104 INFO L168 Benchmark]: Boogie Preprocessor took 66.03 ms. Allocated memory is still 94.4 MB. Free memory was 58.6 MB in the beginning and 56.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:47,104 INFO L168 Benchmark]: RCFGBuilder took 910.13 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 56.5 MB in the beginning and 83.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:47,105 INFO L168 Benchmark]: BuchiAutomizer took 131634.40 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 83.0 MB in the beginning and 103.6 MB in the end (delta: -20.6 MB). Peak memory consumption was 77.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:50:47,106 INFO L168 Benchmark]: Witness Printer took 70.37 ms. Allocated memory is still 148.9 MB. Free memory was 103.6 MB in the beginning and 101.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:50:47,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 94.4 MB. Free memory was 66.7 MB in the beginning and 66.6 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 487.38 ms. Allocated memory is still 94.4 MB. Free memory was 57.8 MB in the beginning and 61.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 118.69 ms. Allocated memory is still 94.4 MB. Free memory was 61.4 MB in the beginning and 58.6 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.03 ms. Allocated memory is still 94.4 MB. Free memory was 58.6 MB in the beginning and 56.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 910.13 ms. Allocated memory was 94.4 MB in the beginning and 123.7 MB in the end (delta: 29.4 MB). Free memory was 56.5 MB in the beginning and 83.0 MB in the end (delta: -26.5 MB). Peak memory consumption was 30.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 131634.40 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 83.0 MB in the beginning and 103.6 MB in the end (delta: -20.6 MB). Peak memory consumption was 77.4 MB. Max. memory is 16.1 GB. * Witness Printer took 70.37 ms. Allocated memory is still 148.9 MB. Free memory was 103.6 MB in the beginning and 101.5 MB in the end (delta: 2.1 MB). There was no memory consumed. 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 108 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 131.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 130.9s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 63 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 108 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 98 SDtfs, 370 SDslu, 524 SDs, 0 SdLazy, 42 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s 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: 295]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=17004} State at position 1 is {NULL=17020, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=17004, NULL=0, NULL=17009, NULL=17007, NULL=0, NULL=17011, NULL=17014, NULL=17029, NULL=17017, methaneLevelCritical=0, tmp=0, NULL=0, NULL=0, NULL=0, NULL=17025, NULL=0, tmp___1=0, NULL=0, NULL=0, tmp___0=0, NULL=17019, NULL=17021, cleanupTimeShifts=4, NULL=17015, NULL=17012, NULL=17022, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77e1451d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13603702=0, retValue_acc=1, NULL=17032, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=17031, NULL=0, NULL=0, NULL=17026, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@651c49d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@679634a=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65319eeb=81, NULL=17028, tmp=1, NULL=0, retValue_acc=1, NULL=0, NULL=17027, NULL=0, NULL=0, NULL=17008, NULL=0, tmp___2=81, NULL=0, NULL=17006, tmp___0=0, splverifierCounter=0, NULL=0, NULL=17023, NULL=17030, NULL=17016, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3774ae01=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a09f413=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fe6d72a=0, NULL=17005, NULL=17018, NULL=17010, NULL=0, NULL=0, NULL=17024, NULL=17013} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L354] int pumpRunning = 0; [L355] int systemActive = 1; [L743] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L565] int retValue_acc ; [L568] retValue_acc = 1 [L569] return (retValue_acc); [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L286] int splverifierCounter ; [L287] int tmp ; [L288] int tmp___0 ; [L289] int tmp___1 ; [L290] int tmp___2 ; [L293] splverifierCounter = 0 Loop: [L295] COND TRUE 1 [L297] COND TRUE splverifierCounter < 4 [L303] tmp = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp)) [L313] tmp___0 = __VERIFIER_nondet_int() [L315] COND FALSE !(\read(tmp___0)) [L323] tmp___2 = __VERIFIER_nondet_int() [L325] COND TRUE \read(tmp___2) [L361] COND FALSE !(\read(pumpRunning)) [L368] COND TRUE \read(systemActive) [L390] int tmp ; [L393] COND FALSE !(\read(pumpRunning)) [L166] int tmp ; [L167] int tmp___0 ; [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] return (retValue_acc); [L171] tmp = getWaterLevel() [L173] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:50:47,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6a73ffc3-5099-42bd-9fe6-61cff53d391d/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...