./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt --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 924726723ff3b89961725912ca395f7f3ab1262e ....................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 00:16:43,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:16:43,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:16:43,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:16:43,206 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:16:43,212 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:16:43,214 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:16:43,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:16:43,222 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:16:43,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:16:43,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:16:43,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:16:43,232 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:16:43,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:16:43,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:16:43,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:16:43,248 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:16:43,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:16:43,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:16:43,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:16:43,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:16:43,267 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:16:43,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:16:43,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:16:43,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:16:43,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:16:43,283 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:16:43,285 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:16:43,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:16:43,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:16:43,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:16:43,290 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:16:43,292 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:16:43,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:16:43,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:16:43,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:16:43,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:16:43,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:16:43,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:16:43,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:16:43,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:16:43,301 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:16:43,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:16:43,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:16:43,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:16:43,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:16:43,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:16:43,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:16:43,362 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:16:43,362 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:16:43,362 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:16:43,362 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:16:43,364 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:16:43,364 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:16:43,364 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:16:43,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:16:43,365 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:16:43,365 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:16:43,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:16:43,366 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:16:43,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:16:43,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:16:43,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:16:43,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:16:43,367 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:16:43,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:16:43,367 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:16:43,367 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:16:43,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:16:43,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:16:43,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:16:43,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:16:43,371 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:16:43,371 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:16:43,372 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:16:43,373 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_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 924726723ff3b89961725912ca395f7f3ab1262e [2021-10-13 00:16:43,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:16:43,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:16:43,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:16:43,698 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:16:43,700 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:16:43,701 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2021-10-13 00:16:43,809 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/data/adcf9e56c/7c1d70892bd741a5840e28c81d61b02a/FLAG9a35c82e4 [2021-10-13 00:16:44,492 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:16:44,493 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2021-10-13 00:16:44,507 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/data/adcf9e56c/7c1d70892bd741a5840e28c81d61b02a/FLAG9a35c82e4 [2021-10-13 00:16:44,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/data/adcf9e56c/7c1d70892bd741a5840e28c81d61b02a [2021-10-13 00:16:44,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:16:44,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:16:44,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:16:44,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:16:44,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:16:44,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:16:44" (1/1) ... [2021-10-13 00:16:44,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2311d3d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:44, skipping insertion in model container [2021-10-13 00:16:44,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:16:44" (1/1) ... [2021-10-13 00:16:44,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:16:44,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:16:45,130 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_9457fc77-70f3-48b6-b824-a7757b040c98/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12170,12183] [2021-10-13 00:16:45,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:16:45,189 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:16:45,262 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_9457fc77-70f3-48b6-b824-a7757b040c98/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12170,12183] [2021-10-13 00:16:45,295 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:16:45,328 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:16:45,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45 WrapperNode [2021-10-13 00:16:45,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:16:45,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:16:45,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:16:45,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:16:45,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (1/1) ... [2021-10-13 00:16:45,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (1/1) ... [2021-10-13 00:16:45,416 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:16:45,417 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:16:45,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:16:45,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:16:45,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (1/1) ... [2021-10-13 00:16:45,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (1/1) ... [2021-10-13 00:16:45,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (1/1) ... [2021-10-13 00:16:45,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (1/1) ... [2021-10-13 00:16:45,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (1/1) ... [2021-10-13 00:16:45,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (1/1) ... [2021-10-13 00:16:45,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (1/1) ... [2021-10-13 00:16:45,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:16:45,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:16:45,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:16:45,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:16:45,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (1/1) ... [2021-10-13 00:16:45,477 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:16:45,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:16:45,522 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:16:45,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:16:45,571 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:16:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:16:45,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:16:45,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:16:46,784 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:16:46,785 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-10-13 00:16:46,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:16:46 BoogieIcfgContainer [2021-10-13 00:16:46,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:16:46,789 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:16:46,789 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:16:46,794 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:16:46,795 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:16:46,796 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:16:44" (1/3) ... [2021-10-13 00:16:46,798 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@491fca4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:16:46, skipping insertion in model container [2021-10-13 00:16:46,798 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:16:46,799 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:16:45" (2/3) ... [2021-10-13 00:16:46,799 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@491fca4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:16:46, skipping insertion in model container [2021-10-13 00:16:46,800 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:16:46,800 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:16:46" (3/3) ... [2021-10-13 00:16:46,802 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product13.cil.c [2021-10-13 00:16:46,861 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:16:46,861 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:16:46,861 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:16:46,861 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:16:46,861 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:16:46,862 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:16:46,862 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:16:46,862 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:16:46,893 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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) [2021-10-13 00:16:46,935 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-13 00:16:46,935 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:46,936 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:46,945 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:16:46,946 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:46,946 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:16:46,947 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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) [2021-10-13 00:16:46,965 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-13 00:16:46,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:46,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:46,967 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:16:46,967 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:46,985 INFO L791 eck$LassoCheckResult]: Stem: 55#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 47#L-1true havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 35#L871true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 25#L879true main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 53#L618true assume 0 != main_~tmp~4; 50#L591true havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 29#L512-1true [2021-10-13 00:16:46,986 INFO L793 eck$LassoCheckResult]: Loop: 29#L512-1true assume !false; 8#L795true assume test_~splverifierCounter~0 < 4; 19#L796true test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 12#L804true assume !(0 != test_~tmp~7); 65#L804-1true test_~tmp___0~1 := test_#t~nondet75;havoc test_#t~nondet75; 24#L814true assume !(0 != test_~tmp___0~1); 15#L814-1true test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 34#L824true assume 0 != test_~tmp___2~0; 57#L830-2true assume !(0 != ~pumpRunning~0); 48#L641true assume !(0 != ~systemActive~0); 66#L648true havoc __utac_acc__Specification4_spec__1_#t~ret52, __utac_acc__Specification4_spec__1_#t~ret53, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 27#L123true __utac_acc__Specification4_spec__1_#t~ret52 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret52;havoc __utac_acc__Specification4_spec__1_#t~ret52; 17#L512true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 29#L512-1true [2021-10-13 00:16:46,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:46,995 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:16:47,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:47,007 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520857505] [2021-10-13 00:16:47,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:47,009 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:47,372 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:47,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:47,596 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:47,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:47,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1681899262, now seen corresponding path program 1 times [2021-10-13 00:16:47,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:47,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037747485] [2021-10-13 00:16:47,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:47,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:47,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:47,609 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:47,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:47,620 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:47,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:47,623 INFO L82 PathProgramCache]: Analyzing trace with hash 32379676, now seen corresponding path program 1 times [2021-10-13 00:16:47,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:47,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683004229] [2021-10-13 00:16:47,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:47,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:47,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:16:47,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:16:47,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:16:47,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683004229] [2021-10-13 00:16:47,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683004229] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:16:47,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:16:47,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:16:47,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045076895] [2021-10-13 00:16:48,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:48,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:16:48,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:16:48,028 INFO L87 Difference]: Start difference. First operand has 66 states, 65 states have (on average 1.523076923076923) internal successors, (99), 65 states have internal predecessors, (99), 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) [2021-10-13 00:16:48,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:48,299 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2021-10-13 00:16:48,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:16:48,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 88 transitions. [2021-10-13 00:16:48,307 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 00:16:48,312 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 59 states and 81 transitions. [2021-10-13 00:16:48,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-10-13 00:16:48,314 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-10-13 00:16:48,314 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2021-10-13 00:16:48,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:48,315 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-13 00:16:48,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2021-10-13 00:16:48,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-13 00:16:48,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 59 states have (on average 1.3728813559322033) internal successors, (81), 58 states have internal predecessors, (81), 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) [2021-10-13 00:16:48,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-10-13 00:16:48,359 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-13 00:16:48,361 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-13 00:16:48,361 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:16:48,361 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2021-10-13 00:16:48,366 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-13 00:16:48,367 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:48,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:48,369 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:16:48,370 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:48,370 INFO L791 eck$LassoCheckResult]: Stem: 208#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(13);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(110, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(102, #t~string63.base, 2 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 3 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string65.base, #t~string65.offset, 1);call write~init~int(80, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(117, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(109, #t~string65.base, 3 + #t~string65.offset, 1);call write~init~int(112, #t~string65.base, 4 + #t~string65.offset, 1);call write~init~int(58, #t~string65.base, 5 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 6 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string71.base, #t~string71.offset, 1);call write~init~int(32, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 2 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string73.base, #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 1 + #t~string73.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 205#L-1 havoc main_#res;havoc main_#t~ret54, main_~retValue_acc~5, main_~tmp~4;havoc main_~retValue_acc~5;havoc main_~tmp~4; 198#L871 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 188#L879 main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 189#L618 assume 0 != main_~tmp~4; 207#L591 havoc test_#t~nondet74, test_#t~nondet75, test_#t~nondet76, test_#t~nondet77, test_~splverifierCounter~0, test_~tmp~7, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~7;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 179#L512-1 [2021-10-13 00:16:48,371 INFO L793 eck$LassoCheckResult]: Loop: 179#L512-1 assume !false; 156#L795 assume test_~splverifierCounter~0 < 4; 157#L796 test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 168#L804 assume !(0 != test_~tmp~7); 170#L804-1 test_~tmp___0~1 := test_#t~nondet75;havoc test_#t~nondet75; 184#L814 assume !(0 != test_~tmp___0~1); 172#L814-1 test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 173#L824 assume 0 != test_~tmp___2~0; 196#L830-2 assume !(0 != ~pumpRunning~0); 155#L641 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 193#L673 assume !(0 != ~pumpRunning~0); 164#L648 havoc __utac_acc__Specification4_spec__1_#t~ret52, __utac_acc__Specification4_spec__1_#t~ret53, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 190#L123 __utac_acc__Specification4_spec__1_#t~ret52 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret52;havoc __utac_acc__Specification4_spec__1_#t~ret52; 177#L512 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 179#L512-1 [2021-10-13 00:16:48,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:48,372 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:16:48,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:48,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498722106] [2021-10-13 00:16:48,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:48,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:48,467 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:48,575 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:48,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:48,576 INFO L82 PathProgramCache]: Analyzing trace with hash -619797861, now seen corresponding path program 1 times [2021-10-13 00:16:48,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:48,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412737655] [2021-10-13 00:16:48,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:48,577 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:48,584 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:48,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:48,593 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:48,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:48,594 INFO L82 PathProgramCache]: Analyzing trace with hash 983241665, now seen corresponding path program 1 times [2021-10-13 00:16:48,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:48,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647668017] [2021-10-13 00:16:48,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:48,595 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:48,661 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:48,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:17:54,198 WARN L207 SmtUtils]: Spent 1.09 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:19:05,489 WARN L207 SmtUtils]: Spent 34.87 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:19:05,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:19:05 BoogieIcfgContainer [2021-10-13 00:19:05,692 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:19:05,693 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:19:05,693 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:19:05,693 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:19:05,694 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:16:46" (3/4) ... [2021-10-13 00:19:05,697 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:19:05,748 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:19:05,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:19:05,759 INFO L168 Benchmark]: Toolchain (without parser) took 141007.79 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 51.6 MB in the beginning and 56.2 MB in the end (delta: -4.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:05,759 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 67.1 MB in the beginning and 67.1 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:19:05,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.69 ms. Allocated memory is still 88.1 MB. Free memory was 51.4 MB in the beginning and 63.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:05,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.89 ms. Allocated memory is still 88.1 MB. Free memory was 63.1 MB in the beginning and 60.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:05,762 INFO L168 Benchmark]: Boogie Preprocessor took 49.13 ms. Allocated memory is still 88.1 MB. Free memory was 60.1 MB in the beginning and 58.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:05,763 INFO L168 Benchmark]: RCFGBuilder took 1321.04 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 58.1 MB in the beginning and 81.8 MB in the end (delta: -23.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:05,764 INFO L168 Benchmark]: BuchiAutomizer took 138903.10 ms. Allocated memory is still 115.3 MB. Free memory was 81.1 MB in the beginning and 58.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:05,764 INFO L168 Benchmark]: Witness Printer took 64.68 ms. Allocated memory is still 115.3 MB. Free memory was 58.2 MB in the beginning and 56.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:19:05,768 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 67.1 MB in the beginning and 67.1 MB in the end (delta: 35.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 563.69 ms. Allocated memory is still 88.1 MB. Free memory was 51.4 MB in the beginning and 63.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.89 ms. Allocated memory is still 88.1 MB. Free memory was 63.1 MB in the beginning and 60.1 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.13 ms. Allocated memory is still 88.1 MB. Free memory was 60.1 MB in the beginning and 58.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1321.04 ms. Allocated memory was 88.1 MB in the beginning and 115.3 MB in the end (delta: 27.3 MB). Free memory was 58.1 MB in the beginning and 81.8 MB in the end (delta: -23.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 138903.10 ms. Allocated memory is still 115.3 MB. Free memory was 81.1 MB in the beginning and 58.2 MB in the end (delta: 22.9 MB). Peak memory consumption was 63.4 MB. Max. memory is 16.1 GB. * Witness Printer took 64.68 ms. Allocated memory is still 115.3 MB. Free memory was 58.2 MB in the beginning and 56.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 138.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 138.3s. Construction of modules took 0.1s. 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 28.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 59 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 83 SDtfs, 331 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 188.8ms 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: 794]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=11952} State at position 1 is {NULL=0, NULL=0, NULL=11962, NULL=0, NULL=0, NULL=11952, NULL=11973, NULL=0, NULL=11979, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=11972, NULL=11956, methaneLevelCritical=0, NULL=11958, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45f7b4fb=0, NULL=11975, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32b07f06=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=11957, NULL=11959, cleanupTimeShifts=4, NULL=11974, NULL=11980, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10ada99d=0, NULL=0, systemActive=1, waterLevel=1, NULL=11971, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=11977, NULL=0, NULL=11968, NULL=11963, NULL=11953, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=11966, \result=0, tmp=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7946f4d5=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bcc95a8=0, NULL=11961, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61942be5=59, NULL=11964, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4744bd6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@694af76c=0, NULL=11965, retValue_acc=1, NULL=11969, NULL=0, tmp=1, NULL=0, NULL=11954, tmp___2=59, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=11970, NULL=11955, NULL=11967, head=0, tmp=0, NULL=0, NULL=0, NULL=11960, NULL=11976, NULL=0, NULL=11978} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L297] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L530] int cleanupTimeShifts = 4; [L634] int pumpRunning = 0; [L635] int systemActive = 1; [L609] int retValue_acc ; [L610] int tmp ; [L875] int retValue_acc ; [L878] retValue_acc = 1 [L879] return (retValue_acc); [L616] tmp = valid_product() [L618] COND TRUE \read(tmp) [L785] int splverifierCounter ; [L786] int tmp ; [L787] int tmp___0 ; [L788] int tmp___1 ; [L789] int tmp___2 ; [L792] splverifierCounter = 0 Loop: [L794] COND TRUE 1 [L796] COND TRUE splverifierCounter < 4 [L802] tmp = __VERIFIER_nondet_int() [L804] COND FALSE !(\read(tmp)) [L812] tmp___0 = __VERIFIER_nondet_int() [L814] COND FALSE !(\read(tmp___0)) [L822] tmp___2 = __VERIFIER_nondet_int() [L824] COND TRUE \read(tmp___2) [L641] COND FALSE !(\read(pumpRunning)) [L648] COND TRUE \read(systemActive) [L670] int tmp ; [L673] COND FALSE !(\read(pumpRunning)) [L505] int tmp ; [L506] int tmp___0 ; [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L510] tmp = getWaterLevel() [L512] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:19:05,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9457fc77-70f3-48b6-b824-a7757b040c98/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...