./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be --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 db8fa4142710656a2cf6992c61a703485566be309c58b9bda433457e238bbe1a ................................................................................................................................................................................................................................................................................................................................................................................................ 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-e943c26 [2021-10-21 19:40:18,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:40:18,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:40:18,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:40:18,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:40:18,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:40:18,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:40:18,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:40:18,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:40:18,395 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:40:18,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:40:18,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:40:18,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:40:18,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:40:18,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:40:18,407 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:40:18,409 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:40:18,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:40:18,413 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:40:18,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:40:18,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:40:18,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:40:18,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:40:18,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:40:18,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:40:18,438 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:40:18,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:40:18,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:40:18,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:40:18,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:40:18,443 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:40:18,444 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:40:18,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:40:18,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:40:18,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:40:18,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:40:18,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:40:18,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:40:18,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:40:18,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:40:18,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:40:18,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:40:18,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:40:18,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:40:18,502 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:40:18,502 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:40:18,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:40:18,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:40:18,504 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:40:18,504 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:40:18,504 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:40:18,505 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:40:18,505 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:40:18,505 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:40:18,505 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:40:18,506 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:40:18,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:40:18,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:40:18,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:40:18,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:40:18,507 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:40:18,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:40:18,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:40:18,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:40:18,508 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:40:18,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:40:18,508 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:40:18,508 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:40:18,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:40:18,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:40:18,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:40:18,509 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:40:18,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:40:18,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:40:18,511 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:40:18,511 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_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db8fa4142710656a2cf6992c61a703485566be309c58b9bda433457e238bbe1a [2021-10-21 19:40:18,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:40:18,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:40:18,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:40:18,796 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:40:18,798 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:40:18,799 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c [2021-10-21 19:40:18,870 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/data/ebe1414c4/9fcb5863377c477f8f0824730d785cc4/FLAG6349c274b [2021-10-21 19:40:19,344 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:40:19,345 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c [2021-10-21 19:40:19,357 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/data/ebe1414c4/9fcb5863377c477f8f0824730d785cc4/FLAG6349c274b [2021-10-21 19:40:19,695 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/data/ebe1414c4/9fcb5863377c477f8f0824730d785cc4 [2021-10-21 19:40:19,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:40:19,698 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:40:19,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:40:19,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:40:19,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:40:19,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:40:19" (1/1) ... [2021-10-21 19:40:19,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cfb807e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:19, skipping insertion in model container [2021-10-21 19:40:19,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:40:19" (1/1) ... [2021-10-21 19:40:19,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:40:19,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:40:19,944 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_de7cd9f0-2d80-40bc-8a13-de41a8a02203/sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c[1605,1618] [2021-10-21 19:40:20,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:40:20,117 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:40:20,137 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_de7cd9f0-2d80-40bc-8a13-de41a8a02203/sv-benchmarks/c/product-lines/minepump_spec5_product03.cil.c[1605,1618] [2021-10-21 19:40:20,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:40:20,253 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:40:20,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20 WrapperNode [2021-10-21 19:40:20,255 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:40:20,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:40:20,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:40:20,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:40:20,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (1/1) ... [2021-10-21 19:40:20,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (1/1) ... [2021-10-21 19:40:20,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:40:20,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:40:20,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:40:20,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:40:20,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (1/1) ... [2021-10-21 19:40:20,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (1/1) ... [2021-10-21 19:40:20,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (1/1) ... [2021-10-21 19:40:20,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (1/1) ... [2021-10-21 19:40:20,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (1/1) ... [2021-10-21 19:40:20,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (1/1) ... [2021-10-21 19:40:20,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (1/1) ... [2021-10-21 19:40:20,369 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:40:20,370 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:40:20,370 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:40:20,370 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:40:20,371 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (1/1) ... [2021-10-21 19:40:20,392 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:40:20,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:40:20,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:40:20,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:40:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:40:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:40:20,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:40:20,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:40:21,262 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:40:21,263 INFO L299 CfgBuilder]: Removed 84 assume(true) statements. [2021-10-21 19:40:21,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:40:21 BoogieIcfgContainer [2021-10-21 19:40:21,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:40:21,266 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:40:21,266 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:40:21,269 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:40:21,270 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:40:21,270 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:40:19" (1/3) ... [2021-10-21 19:40:21,272 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d4f31b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:40:21, skipping insertion in model container [2021-10-21 19:40:21,272 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:40:21,272 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:40:20" (2/3) ... [2021-10-21 19:40:21,273 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5d4f31b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:40:21, skipping insertion in model container [2021-10-21 19:40:21,273 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:40:21,273 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:40:21" (3/3) ... [2021-10-21 19:40:21,274 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product03.cil.c [2021-10-21 19:40:21,329 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:40:21,329 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:40:21,329 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:40:21,330 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:40:21,330 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:40:21,330 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:40:21,330 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:40:21,330 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:40:21,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 65 states, 64 states have (on average 1.5) internal successors, (96), 64 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:40:21,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-21 19:40:21,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:40:21,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:40:21,388 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:21,388 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:21,389 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:40:21,390 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 65 states, 64 states have (on average 1.5) internal successors, (96), 64 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:40:21,401 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-21 19:40:21,402 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:40:21,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:40:21,403 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:21,403 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:21,414 INFO L791 eck$LassoCheckResult]: Stem: 57#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string52.base, #t~string52.offset, 1);call write~init~int(80, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(117, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(109, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(112, #t~string52.base, 4 + #t~string52.offset, 1);call write~init~int(58, #t~string52.base, 5 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 6 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string58.base, #t~string58.offset, 1);call write~init~int(32, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string60.base, #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 1 + #t~string60.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 44#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 13#L553true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 6#L561true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 22#L517true assume 0 != main_~tmp~3; 66#L488true ~switchedOnBeforeTS~0 := 0; 25#L774true havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 23#L795-1true [2021-10-21 19:40:21,416 INFO L793 eck$LassoCheckResult]: Loop: 23#L795-1true assume !false; 48#L711true assume test_~splverifierCounter~0 < 4; 65#L712true test_~tmp~4 := test_#t~nondet61;havoc test_#t~nondet61; 35#L720true assume !(0 != test_~tmp~4); 49#L720-1true test_~tmp___0~0 := test_#t~nondet62;havoc test_#t~nondet62; 59#L730true assume !(0 != test_~tmp___0~0); 51#L730-1true test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 50#L740true assume 0 != test_~tmp___2~0; 15#L746-1true havoc __utac_acc__Specification5_spec__2_#t~ret65;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 41#L644true __utac_acc__Specification5_spec__2_#t~ret65 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret65;havoc __utac_acc__Specification5_spec__2_#t~ret65; 56#L784true assume !(0 != ~pumpRunning~0); 11#L585true assume 0 != ~systemActive~0; 20#L592true havoc __utac_acc__Specification5_spec__3_#t~ret66, __utac_acc__Specification5_spec__3_#t~ret67, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 54#L892true __utac_acc__Specification5_spec__3_#t~ret66 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret66;havoc __utac_acc__Specification5_spec__3_#t~ret66; 9#L795true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~5); 23#L795-1true [2021-10-21 19:40:21,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:21,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:40:21,444 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:21,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839375788] [2021-10-21 19:40:21,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:21,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:21,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:21,754 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:40:21,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:21,895 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:40:21,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:21,905 INFO L82 PathProgramCache]: Analyzing trace with hash -242843208, now seen corresponding path program 1 times [2021-10-21 19:40:21,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:21,906 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637501450] [2021-10-21 19:40:21,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:21,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:21,915 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:40:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:21,937 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:40:21,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:21,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1691182002, now seen corresponding path program 1 times [2021-10-21 19:40:21,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:21,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860543365] [2021-10-21 19:40:21,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:21,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:21,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:40:22,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:40:22,116 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:40:22,117 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860543365] [2021-10-21 19:40:22,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860543365] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:40:22,118 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:40:22,119 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:40:22,119 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227799678] [2021-10-21 19:40:22,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:40:22,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:40:22,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:40:22,314 INFO L87 Difference]: Start difference. First operand has 65 states, 64 states have (on average 1.5) internal successors, (96), 64 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:40:22,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:40:22,493 INFO L93 Difference]: Finished difference Result 170 states and 230 transitions. [2021-10-21 19:40:22,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:40:22,495 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 170 states and 230 transitions. [2021-10-21 19:40:22,508 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 75 [2021-10-21 19:40:22,516 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 170 states to 152 states and 212 transitions. [2021-10-21 19:40:22,517 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 152 [2021-10-21 19:40:22,520 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 152 [2021-10-21 19:40:22,521 INFO L73 IsDeterministic]: Start isDeterministic. Operand 152 states and 212 transitions. [2021-10-21 19:40:22,523 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:40:22,523 INFO L681 BuchiCegarLoop]: Abstraction has 152 states and 212 transitions. [2021-10-21 19:40:22,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states and 212 transitions. [2021-10-21 19:40:22,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 109. [2021-10-21 19:40:22,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 109 states have (on average 1.3577981651376148) internal successors, (148), 108 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:40:22,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 148 transitions. [2021-10-21 19:40:22,558 INFO L704 BuchiCegarLoop]: Abstraction has 109 states and 148 transitions. [2021-10-21 19:40:22,558 INFO L587 BuchiCegarLoop]: Abstraction has 109 states and 148 transitions. [2021-10-21 19:40:22,558 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:40:22,558 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states and 148 transitions. [2021-10-21 19:40:22,560 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 75 [2021-10-21 19:40:22,560 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:40:22,560 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:40:22,561 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:22,561 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:40:22,561 INFO L791 eck$LassoCheckResult]: Stem: 320#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string48.base, #t~string48.offset, 1);call write~init~int(110, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 2 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string50.base, #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(102, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 3 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string52.base, #t~string52.offset, 1);call write~init~int(80, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(117, #t~string52.base, 2 + #t~string52.offset, 1);call write~init~int(109, #t~string52.base, 3 + #t~string52.offset, 1);call write~init~int(112, #t~string52.base, 4 + #t~string52.offset, 1);call write~init~int(58, #t~string52.base, 5 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 6 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(110, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 2 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string56.base, #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(102, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 3 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string58.base, #t~string58.offset, 1);call write~init~int(32, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string60.base, #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 1 + #t~string60.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(13);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(77, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(101, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(116, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(104, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string73.base, #t~string73.offset, 1);call write~init~int(82, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(73, #t~string73.base, 2 + #t~string73.offset, 1);call write~init~int(84, #t~string73.base, 3 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 4 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(75, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 2 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 1 + #t~string77.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 307#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~3, main_~tmp~3;havoc main_~retValue_acc~3;havoc main_~tmp~3; 270#L553 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 256#L561 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 257#L517 assume 0 != main_~tmp~3; 281#L488 ~switchedOnBeforeTS~0 := 0; 285#L774 havoc test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 273#L795-1 [2021-10-21 19:40:22,561 INFO L793 eck$LassoCheckResult]: Loop: 273#L795-1 assume !false; 282#L711 assume test_~splverifierCounter~0 < 4; 312#L712 test_~tmp~4 := test_#t~nondet61;havoc test_#t~nondet61; 296#L720 assume !(0 != test_~tmp~4); 298#L720-1 test_~tmp___0~0 := test_#t~nondet62;havoc test_#t~nondet62; 313#L730 assume !(0 != test_~tmp___0~0); 304#L730-1 test_~tmp___2~0 := test_#t~nondet63;havoc test_#t~nondet63; 314#L740 assume 0 != test_~tmp___2~0; 269#L746-1 havoc __utac_acc__Specification5_spec__2_#t~ret65;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 271#L644 __utac_acc__Specification5_spec__2_#t~ret65 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret65;havoc __utac_acc__Specification5_spec__2_#t~ret65; 302#L784 assume !(0 != ~pumpRunning~0); 319#L585 assume 0 != ~systemActive~0; 349#L592 havoc __utac_acc__Specification5_spec__3_#t~ret66, __utac_acc__Specification5_spec__3_#t~ret67, __utac_acc__Specification5_spec__3_~tmp~5, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~5;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 348#L892 __utac_acc__Specification5_spec__3_#t~ret66 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~5 := __utac_acc__Specification5_spec__3_#t~ret66;havoc __utac_acc__Specification5_spec__3_#t~ret66; 262#L795 assume 2 != __utac_acc__Specification5_spec__3_~tmp~5;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~7;havoc isPumpRunning_~retValue_acc~7;isPumpRunning_~retValue_acc~7 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~7; 263#L644-1 __utac_acc__Specification5_spec__3_#t~ret67 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret67;havoc __utac_acc__Specification5_spec__3_#t~ret67; 318#L799 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 273#L795-1 [2021-10-21 19:40:22,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:22,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:40:22,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:22,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397587955] [2021-10-21 19:40:22,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:22,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:22,611 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:40:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:22,727 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:40:22,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:22,731 INFO L82 PathProgramCache]: Analyzing trace with hash -1444103597, now seen corresponding path program 1 times [2021-10-21 19:40:22,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:22,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317716680] [2021-10-21 19:40:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:22,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:22,739 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:40:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:22,753 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:40:22,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:40:22,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1728251341, now seen corresponding path program 1 times [2021-10-21 19:40:22,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:40:22,760 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884048120] [2021-10-21 19:40:22,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:40:22,760 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:40:22,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:22,822 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:40:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:40:22,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:41:20,230 WARN L207 SmtUtils]: Spent 57.12 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:42:19,131 WARN L207 SmtUtils]: Spent 27.54 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:42:19,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:42:19 BoogieIcfgContainer [2021-10-21 19:42:19,313 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:42:19,314 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:42:19,314 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:42:19,314 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:42:19,315 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:40:21" (3/4) ... [2021-10-21 19:42:19,317 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:42:19,374 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:42:19,375 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:42:19,376 INFO L168 Benchmark]: Toolchain (without parser) took 119676.97 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 87.2 MB in the beginning and 89.6 MB in the end (delta: -2.4 MB). Peak memory consumption was 22.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:19,376 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 104.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:42:19,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.37 ms. Allocated memory is still 125.8 MB. Free memory was 87.0 MB in the beginning and 94.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:19,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.88 ms. Allocated memory is still 125.8 MB. Free memory was 94.0 MB in the beginning and 91.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:19,378 INFO L168 Benchmark]: Boogie Preprocessor took 33.68 ms. Allocated memory is still 125.8 MB. Free memory was 91.1 MB in the beginning and 89.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:19,379 INFO L168 Benchmark]: RCFGBuilder took 895.13 ms. Allocated memory is still 125.8 MB. Free memory was 89.0 MB in the beginning and 50.4 MB in the end (delta: 38.6 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:19,380 INFO L168 Benchmark]: BuchiAutomizer took 118047.50 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 50.4 MB in the beginning and 91.7 MB in the end (delta: -41.3 MB). Peak memory consumption was 49.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:19,381 INFO L168 Benchmark]: Witness Printer took 60.96 ms. Allocated memory is still 151.0 MB. Free memory was 91.7 MB in the beginning and 89.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:42:19,385 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 104.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 539.37 ms. Allocated memory is still 125.8 MB. Free memory was 87.0 MB in the beginning and 94.0 MB in the end (delta: -7.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.88 ms. Allocated memory is still 125.8 MB. Free memory was 94.0 MB in the beginning and 91.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.68 ms. Allocated memory is still 125.8 MB. Free memory was 91.1 MB in the beginning and 89.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 895.13 ms. Allocated memory is still 125.8 MB. Free memory was 89.0 MB in the beginning and 50.4 MB in the end (delta: 38.6 MB). Peak memory consumption was 37.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 118047.50 ms. Allocated memory was 125.8 MB in the beginning and 151.0 MB in the end (delta: 25.2 MB). Free memory was 50.4 MB in the beginning and 91.7 MB in the end (delta: -41.3 MB). Peak memory consumption was 49.5 MB. Max. memory is 16.1 GB. * Witness Printer took 60.96 ms. Allocated memory is still 151.0 MB. Free memory was 91.7 MB in the beginning and 89.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 109 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 117.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 117.6s. Construction of modules took 0.0s. 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 20.4ms AutomataMinimizationTime, 1 MinimizatonAttempts, 43 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 109 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 132 SDtfs, 239 SDslu, 247 SDs, 0 SdLazy, 67 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.5ms 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: 710]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=23327} State at position 1 is {NULL=0, NULL=0, NULL=23327, NULL=31320, retValue_acc=0, NULL=31300, NULL=0, NULL=31303, NULL=31316, NULL=31312, methaneLevelCritical=0, NULL=31299, tmp=0, tmp=1, NULL=0, tmp___1=0, NULL=31318, NULL=0, NULL=0, NULL=31298, NULL=31322, NULL=31301, cleanupTimeShifts=4, NULL=31302, switchedOnBeforeTS=0, NULL=31319, NULL=31309, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=31314, \result=1, NULL=0, NULL=0, NULL=31313, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fa6d820=0, NULL=0, tmp___0=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@64f3a04a=0, NULL=31315, NULL=0, NULL=0, NULL=31306, \result=1, head=0, pumpRunning=0, \result=0, tmp___0=0, NULL=31310, tmp=1, NULL=0, NULL=0, NULL=0, NULL=31321, retValue_acc=1, NULL=31317, NULL=0, NULL=0, NULL=31304, NULL=0, retValue_acc=1, NULL=31308, tmp___2=60, NULL=0, NULL=31305, NULL=31296, splverifierCounter=0, NULL=0, NULL=23328, NULL=31307, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d4dc006=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2621f2e0=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47c51ea4=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@485b72bf=60, NULL=31297, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@207303ce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@512c7d9a=0, NULL=0, NULL=0, NULL=31311, NULL=0, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L228] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L425] int cleanupTimeShifts = 4; [L573] int pumpRunning = 0; [L574] int systemActive = 1; [L768] int switchedOnBeforeTS ; [L817] int waterLevel = 1; [L818] int methaneLevelCritical = 0; [L508] int retValue_acc ; [L509] int tmp ; [L557] int retValue_acc ; [L560] retValue_acc = 1 [L561] return (retValue_acc); [L515] tmp = valid_product() [L517] COND TRUE \read(tmp) [L773] switchedOnBeforeTS = 0 [L701] int splverifierCounter ; [L702] int tmp ; [L703] int tmp___0 ; [L704] int tmp___1 ; [L705] int tmp___2 ; [L708] splverifierCounter = 0 Loop: [L710] COND TRUE 1 [L712] COND TRUE splverifierCounter < 4 [L718] tmp = __VERIFIER_nondet_int() [L720] COND FALSE !(\read(tmp)) [L728] tmp___0 = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp___0)) [L738] tmp___2 = __VERIFIER_nondet_int() [L740] COND TRUE \read(tmp___2) [L640] int retValue_acc ; [L643] retValue_acc = pumpRunning [L644] return (retValue_acc); [L782] switchedOnBeforeTS = isPumpRunning() [L585] COND FALSE !(\read(pumpRunning)) [L592] COND TRUE \read(systemActive) [L788] int tmp ; [L789] int tmp___0 ; [L888] int retValue_acc ; [L891] retValue_acc = waterLevel [L892] return (retValue_acc); [L793] tmp = getWaterLevel() [L795] COND TRUE tmp != 2 [L640] int retValue_acc ; [L643] retValue_acc = pumpRunning [L644] return (retValue_acc); [L797] tmp___0 = isPumpRunning() [L799] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:42:19,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de7cd9f0-2d80-40bc-8a13-de41a8a02203/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...