./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 e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/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_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/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_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/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_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/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 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d ....................................................................................................................................................................................................................................................................................................................................................................................... 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 19:33:02,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:33:02,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:33:02,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:33:02,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:33:02,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:33:02,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:33:02,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:33:02,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:33:02,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:33:02,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:33:02,465 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:33:02,466 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:33:02,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:33:02,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:33:02,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:33:02,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:33:02,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:33:02,483 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:33:02,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:33:02,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:33:02,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:33:02,500 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:33:02,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:33:02,504 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:33:02,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:33:02,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:33:02,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:33:02,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:33:02,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:33:02,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:33:02,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:33:02,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:33:02,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:33:02,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:33:02,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:33:02,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:33:02,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:33:02,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:33:02,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:33:02,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:33:02,519 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:33:02,563 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:33:02,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:33:02,564 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:33:02,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:33:02,566 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:33:02,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:33:02,567 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:33:02,567 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:33:02,567 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:33:02,568 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:33:02,569 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:33:02,569 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:33:02,569 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:33:02,569 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:33:02,570 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:33:02,570 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:33:02,570 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:33:02,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:33:02,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:33:02,571 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:33:02,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:33:02,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:33:02,571 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:33:02,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:33:02,572 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:33:02,572 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:33:02,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:33:02,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:33:02,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:33:02,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:33:02,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:33:02,575 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:33:02,576 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:33:02,577 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_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b7b562c6a835e9c81bbd978940c7270ae455ff1120bac33da414b2ebf27928d [2021-10-21 19:33:02,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:33:02,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:33:02,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:33:02,883 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:33:02,886 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:33:02,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2021-10-21 19:33:02,980 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/data/15a013134/84ee0c58cfcc4dbda7cbe675dc28e602/FLAGa78c3c5f1 [2021-10-21 19:33:03,579 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:33:03,580 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c [2021-10-21 19:33:03,592 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/data/15a013134/84ee0c58cfcc4dbda7cbe675dc28e602/FLAGa78c3c5f1 [2021-10-21 19:33:03,913 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/data/15a013134/84ee0c58cfcc4dbda7cbe675dc28e602 [2021-10-21 19:33:03,916 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:33:03,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:33:03,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:33:03,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:33:03,924 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:33:03,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:33:03" (1/1) ... [2021-10-21 19:33:03,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c5a7e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:03, skipping insertion in model container [2021-10-21 19:33:03,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:33:03" (1/1) ... [2021-10-21 19:33:03,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:33:03,981 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:33:04,245 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_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2021-10-21 19:33:04,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:33:04,283 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:33:04,332 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_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/sv-benchmarks/c/product-lines/minepump_spec4_product13.cil.c[12494,12507] [2021-10-21 19:33:04,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:33:04,364 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:33:04,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04 WrapperNode [2021-10-21 19:33:04,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:33:04,366 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:33:04,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:33:04,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:33:04,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (1/1) ... [2021-10-21 19:33:04,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (1/1) ... [2021-10-21 19:33:04,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:33:04,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:33:04,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:33:04,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:33:04,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (1/1) ... [2021-10-21 19:33:04,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (1/1) ... [2021-10-21 19:33:04,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (1/1) ... [2021-10-21 19:33:04,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (1/1) ... [2021-10-21 19:33:04,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (1/1) ... [2021-10-21 19:33:04,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (1/1) ... [2021-10-21 19:33:04,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (1/1) ... [2021-10-21 19:33:04,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:33:04,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:33:04,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:33:04,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:33:04,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (1/1) ... [2021-10-21 19:33:04,510 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:33:04,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:33:04,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:33:04,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:33:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:33:04,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:33:04,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:33:04,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:33:05,428 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:33:05,428 INFO L299 CfgBuilder]: Removed 96 assume(true) statements. [2021-10-21 19:33:05,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:33:05 BoogieIcfgContainer [2021-10-21 19:33:05,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:33:05,432 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:33:05,432 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:33:05,435 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:33:05,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:33:05,436 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:33:03" (1/3) ... [2021-10-21 19:33:05,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1df1f2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:33:05, skipping insertion in model container [2021-10-21 19:33:05,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:33:05,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:33:04" (2/3) ... [2021-10-21 19:33:05,439 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1df1f2cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:33:05, skipping insertion in model container [2021-10-21 19:33:05,439 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:33:05,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:33:05" (3/3) ... [2021-10-21 19:33:05,440 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product13.cil.c [2021-10-21 19:33:05,483 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:33:05,483 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:33:05,483 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:33:05,483 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:33:05,484 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:33:05,484 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:33:05,484 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:33:05,484 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:33:05,500 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) [2021-10-21 19:33:05,526 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-21 19:33:05,526 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:33:05,526 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:33:05,532 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:33:05,532 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:33:05,533 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:33:05,533 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) [2021-10-21 19:33:05,538 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-10-21 19:33:05,538 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:33:05,538 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:33:05,539 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:33:05,539 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:33:05,544 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~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; 43#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; 27#L879true 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; 60#L887true main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 6#L626true assume 0 != main_~tmp~4; 61#L599true 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; 21#L520-1true [2021-10-21 19:33:05,546 INFO L793 eck$LassoCheckResult]: Loop: 21#L520-1true assume !false; 28#L803true assume test_~splverifierCounter~0 < 4; 16#L804true test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 18#L812true assume !(0 != test_~tmp~7); 49#L812-1true test_~tmp___0~1 := test_#t~nondet75;havoc test_#t~nondet75; 17#L822true assume !(0 != test_~tmp___0~1); 29#L822-1true test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 7#L832true assume 0 != test_~tmp___2~0; 40#L838-2true assume !(0 != ~pumpRunning~0); 62#L649true assume !(0 != ~systemActive~0); 35#L656true 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; 50#L131true __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; 45#L520true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 21#L520-1true [2021-10-21 19:33:05,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:33:05,552 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 19:33:05,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:33:05,566 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578027526] [2021-10-21 19:33:05,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:33:05,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:33:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:05,795 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:33:05,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:06,012 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:33:06,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:33:06,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1681899262, now seen corresponding path program 1 times [2021-10-21 19:33:06,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:33:06,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964626133] [2021-10-21 19:33:06,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:33:06,026 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:33:06,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:06,040 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:33:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:06,051 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:33:06,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:33:06,053 INFO L82 PathProgramCache]: Analyzing trace with hash 32379676, now seen corresponding path program 1 times [2021-10-21 19:33:06,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:33:06,054 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469396059] [2021-10-21 19:33:06,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:33:06,054 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:33:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:33:06,239 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 19:33:06,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:33:06,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469396059] [2021-10-21 19:33:06,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469396059] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:33:06,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:33:06,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:33:06,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78755075] [2021-10-21 19:33:06,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:33:06,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:33:06,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:33:06,394 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) [2021-10-21 19:33:06,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:33:06,657 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2021-10-21 19:33:06,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 19:33:06,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 88 transitions. [2021-10-21 19:33:06,667 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-21 19:33:06,671 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 59 states and 81 transitions. [2021-10-21 19:33:06,672 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-10-21 19:33:06,673 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-10-21 19:33:06,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2021-10-21 19:33:06,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:33:06,677 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-21 19:33:06,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2021-10-21 19:33:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-10-21 19:33:06,712 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) [2021-10-21 19:33:06,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-10-21 19:33:06,726 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-21 19:33:06,727 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-10-21 19:33:06,727 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:33:06,727 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2021-10-21 19:33:06,731 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-10-21 19:33:06,731 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:33:06,731 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:33:06,732 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:33:06,732 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:33:06,732 INFO L791 eck$LassoCheckResult]: Stem: 207#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; 200#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; 189#L879 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; 190#L887 main_#t~ret54 := valid_product_#res;main_~tmp~4 := main_#t~ret54;havoc main_#t~ret54; 155#L626 assume 0 != main_~tmp~4; 156#L599 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; 183#L520-1 [2021-10-21 19:33:06,733 INFO L793 eck$LassoCheckResult]: Loop: 183#L520-1 assume !false; 184#L803 assume test_~splverifierCounter~0 < 4; 176#L804 test_~tmp~7 := test_#t~nondet74;havoc test_#t~nondet74; 177#L812 assume !(0 != test_~tmp~7); 164#L812-1 test_~tmp___0~1 := test_#t~nondet75;havoc test_#t~nondet75; 178#L822 assume !(0 != test_~tmp___0~1); 154#L822-1 test_~tmp___2~0 := test_#t~nondet76;havoc test_#t~nondet76; 157#L832 assume 0 != test_~tmp___2~0; 158#L838-2 assume !(0 != ~pumpRunning~0); 197#L649 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret55, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 208#L681 assume !(0 != ~pumpRunning~0); 186#L656 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; 195#L131 __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; 201#L520 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 183#L520-1 [2021-10-21 19:33:06,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:33:06,734 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 19:33:06,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:33:06,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806859011] [2021-10-21 19:33:06,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:33:06,735 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:33:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:06,781 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:33:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:06,865 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:33:06,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:33:06,872 INFO L82 PathProgramCache]: Analyzing trace with hash -619797861, now seen corresponding path program 1 times [2021-10-21 19:33:06,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:33:06,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345344603] [2021-10-21 19:33:06,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:33:06,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:33:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:06,882 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:33:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:06,889 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:33:06,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:33:06,896 INFO L82 PathProgramCache]: Analyzing trace with hash 983241665, now seen corresponding path program 1 times [2021-10-21 19:33:06,896 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:33:06,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013384301] [2021-10-21 19:33:06,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:33:06,897 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:33:06,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:06,968 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:33:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:07,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:34:01,630 WARN L207 SmtUtils]: Spent 54.51 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 19:34:56,844 WARN L207 SmtUtils]: Spent 26.54 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 19:34:56,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:34:56 BoogieIcfgContainer [2021-10-21 19:34:56,994 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:34:56,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:34:56,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:34:57,000 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:34:57,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:33:05" (3/4) ... [2021-10-21 19:34:57,003 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:34:57,047 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:34:57,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:34:57,049 INFO L168 Benchmark]: Toolchain (without parser) took 113130.40 ms. Allocated memory was 102.8 MB in the beginning and 148.9 MB in the end (delta: 46.1 MB). Free memory was 62.9 MB in the beginning and 82.4 MB in the end (delta: -19.5 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:57,049 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory was 79.9 MB in the beginning and 79.9 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:34:57,050 INFO L168 Benchmark]: CACSL2BoogieTranslator took 446.04 ms. Allocated memory is still 102.8 MB. Free memory was 62.7 MB in the beginning and 70.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:57,051 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.80 ms. Allocated memory is still 102.8 MB. Free memory was 70.4 MB in the beginning and 67.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:57,051 INFO L168 Benchmark]: Boogie Preprocessor took 65.49 ms. Allocated memory is still 102.8 MB. Free memory was 67.3 MB in the beginning and 65.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:57,052 INFO L168 Benchmark]: RCFGBuilder took 928.94 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 65.5 MB in the beginning and 90.5 MB in the end (delta: -25.0 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:57,053 INFO L168 Benchmark]: BuchiAutomizer took 111567.18 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 90.5 MB in the beginning and 84.5 MB in the end (delta: 6.0 MB). Peak memory consumption was 83.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:34:57,053 INFO L168 Benchmark]: Witness Printer took 48.16 ms. Allocated memory is still 148.9 MB. Free memory was 84.5 MB in the beginning and 82.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:34:57,057 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory was 79.9 MB in the beginning and 79.9 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 446.04 ms. Allocated memory is still 102.8 MB. Free memory was 62.7 MB in the beginning and 70.4 MB in the end (delta: -7.7 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.80 ms. Allocated memory is still 102.8 MB. Free memory was 70.4 MB in the beginning and 67.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 65.49 ms. Allocated memory is still 102.8 MB. Free memory was 67.3 MB in the beginning and 65.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 928.94 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 65.5 MB in the beginning and 90.5 MB in the end (delta: -25.0 MB). Peak memory consumption was 39.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 111567.18 ms. Allocated memory was 123.7 MB in the beginning and 148.9 MB in the end (delta: 25.2 MB). Free memory was 90.5 MB in the beginning and 84.5 MB in the end (delta: 6.0 MB). Peak memory consumption was 83.1 MB. Max. memory is 16.1 GB. * Witness Printer took 48.16 ms. Allocated memory is still 148.9 MB. Free memory was 84.5 MB in the beginning and 82.4 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 111.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 111.0s. 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 33.8ms 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, 156.2ms 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: 802]: 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@2e9b0391=0, NULL=11975, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@400aa5ab=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@1513aa87=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@8ede66e=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@618ff5d6=0, NULL=11961, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a24cff4=59, NULL=11964, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65f5e8af=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65cc67d4=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: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L305] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L538] int cleanupTimeShifts = 4; [L642] int pumpRunning = 0; [L643] int systemActive = 1; [L617] int retValue_acc ; [L618] int tmp ; [L883] int retValue_acc ; [L886] retValue_acc = 1 [L887] return (retValue_acc); [L624] tmp = valid_product() [L626] COND TRUE \read(tmp) [L793] int splverifierCounter ; [L794] int tmp ; [L795] int tmp___0 ; [L796] int tmp___1 ; [L797] int tmp___2 ; [L800] splverifierCounter = 0 Loop: [L802] COND TRUE 1 [L804] COND TRUE splverifierCounter < 4 [L810] tmp = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp)) [L820] tmp___0 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___0)) [L830] tmp___2 = __VERIFIER_nondet_int() [L832] COND TRUE \read(tmp___2) [L649] COND FALSE !(\read(pumpRunning)) [L656] COND TRUE \read(systemActive) [L678] int tmp ; [L681] COND FALSE !(\read(pumpRunning)) [L513] int tmp ; [L514] int tmp___0 ; [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L518] tmp = getWaterLevel() [L520] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:34:57,131 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_942fa18c-084d-41a0-9f6e-9ee99ad2ed07/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...