./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:30:09,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:30:09,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:30:09,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:30:09,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:30:09,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:30:09,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:30:09,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:30:09,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:30:09,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:30:09,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:30:09,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:30:09,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:30:09,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:30:09,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:30:09,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:30:09,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:30:09,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:30:09,388 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:30:09,392 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:30:09,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:30:09,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:30:09,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:30:09,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:30:09,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:30:09,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:30:09,414 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:30:09,416 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:30:09,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:30:09,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:30:09,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:30:09,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:30:09,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:30:09,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:30:09,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:30:09,428 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:30:09,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:30:09,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:30:09,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:30:09,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:30:09,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:30:09,432 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 06:30:09,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:30:09,498 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:30:09,499 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:30:09,499 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:30:09,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:30:09,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:30:09,502 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:30:09,502 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 06:30:09,502 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 06:30:09,503 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 06:30:09,504 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 06:30:09,504 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 06:30:09,505 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 06:30:09,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:30:09,505 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:30:09,506 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 06:30:09,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:30:09,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:30:09,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:30:09,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 06:30:09,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 06:30:09,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 06:30:09,507 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:30:09,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:30:09,508 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 06:30:09,508 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:30:09,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 06:30:09,511 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:30:09,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:30:09,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:30:09,512 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:30:09,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:30:09,513 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 06:30:09,514 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_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 707a68b5ae5daf5497cfeaeef06b8e51a77f018401ec73338bde503119bd77ef [2021-11-20 06:30:09,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:30:09,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:30:09,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:30:09,948 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:30:09,949 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:30:09,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2021-11-20 06:30:10,059 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/data/a91f70e5a/9d2baa478730461d9305ec2e776c27e6/FLAG846fdc630 [2021-11-20 06:30:10,670 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:30:10,671 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c [2021-11-20 06:30:10,685 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/data/a91f70e5a/9d2baa478730461d9305ec2e776c27e6/FLAG846fdc630 [2021-11-20 06:30:10,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/data/a91f70e5a/9d2baa478730461d9305ec2e776c27e6 [2021-11-20 06:30:10,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:30:10,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:30:10,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:30:10,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:30:10,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:30:10,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:30:10" (1/1) ... [2021-11-20 06:30:10,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b4a7567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:10, skipping insertion in model container [2021-11-20 06:30:10,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:30:10" (1/1) ... [2021-11-20 06:30:10,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:30:11,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:30:11,352 WARN L230 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_53d76cd3-7faa-4890-8f16-5035f6a01820/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c[2897,2910] [2021-11-20 06:30:11,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:30:11,470 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:30:11,492 WARN L230 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_53d76cd3-7faa-4890-8f16-5035f6a01820/sv-benchmarks/c/product-lines/minepump_spec4_product27.cil.c[2897,2910] [2021-11-20 06:30:11,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:30:11,592 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:30:11,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11 WrapperNode [2021-11-20 06:30:11,592 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:30:11,594 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:30:11,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:30:11,594 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:30:11,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (1/1) ... [2021-11-20 06:30:11,624 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (1/1) ... [2021-11-20 06:30:11,684 INFO L137 Inliner]: procedures = 54, calls = 153, calls flagged for inlining = 50, calls inlined = 49, statements flattened = 384 [2021-11-20 06:30:11,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:30:11,685 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:30:11,685 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:30:11,686 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:30:11,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (1/1) ... [2021-11-20 06:30:11,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (1/1) ... [2021-11-20 06:30:11,723 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (1/1) ... [2021-11-20 06:30:11,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (1/1) ... [2021-11-20 06:30:11,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (1/1) ... [2021-11-20 06:30:11,755 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (1/1) ... [2021-11-20 06:30:11,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (1/1) ... [2021-11-20 06:30:11,762 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:30:11,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:30:11,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:30:11,763 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:30:11,764 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (1/1) ... [2021-11-20 06:30:11,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 06:30:11,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:30:11,803 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 06:30:11,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 06:30:11,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:30:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:30:11,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:30:11,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:30:11,957 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:30:11,959 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:30:12,421 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:30:12,431 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:30:12,432 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:30:12,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:30:12 BoogieIcfgContainer [2021-11-20 06:30:12,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:30:12,454 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 06:30:12,455 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 06:30:12,459 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 06:30:12,460 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:30:12,461 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 06:30:10" (1/3) ... [2021-11-20 06:30:12,463 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68d82b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:30:12, skipping insertion in model container [2021-11-20 06:30:12,463 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:30:12,463 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:30:11" (2/3) ... [2021-11-20 06:30:12,464 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@68d82b01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 06:30:12, skipping insertion in model container [2021-11-20 06:30:12,464 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 06:30:12,465 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:30:12" (3/3) ... [2021-11-20 06:30:12,467 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product27.cil.c [2021-11-20 06:30:12,547 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 06:30:12,547 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 06:30:12,548 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 06:30:12,548 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 06:30:12,548 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 06:30:12,548 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 06:30:12,549 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 06:30:12,549 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 06:30:12,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.361904761904762) internal successors, (143), 105 states have internal predecessors, (143), 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) [2021-11-20 06:30:12,631 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2021-11-20 06:30:12,632 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:30:12,632 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:30:12,643 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:30:12,644 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:30:12,644 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 06:30:12,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 106 states, 105 states have (on average 1.361904761904762) internal successors, (143), 105 states have internal predecessors, (143), 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) [2021-11-20 06:30:12,668 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 68 [2021-11-20 06:30:12,671 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:30:12,671 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:30:12,673 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:30:12,674 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:30:12,687 INFO L791 eck$LassoCheckResult]: Stem: 97#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 60#L561true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 108#L554true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 31#L569true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 50#L140true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 89#L113true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 24#L295-2true [2021-11-20 06:30:12,688 INFO L793 eck$LassoCheckResult]: Loop: 24#L295-2true assume !false; 44#L296true assume test_~splverifierCounter~0#1 < 4; 29#L297true test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 54#L305true assume !(0 != test_~tmp~2#1); 96#L305-2true test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 41#L315true assume !(0 != test_~tmp___0~1#1); 64#L315-2true test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 59#L325true assume 0 != test_~tmp___2~0#1; 100#L331-2true assume { :begin_inline_timeShift } true; 61#L361true assume !(0 != ~pumpRunning~0); 83#L361-2true assume !(0 != ~systemActive~0); 84#L368-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 8#L270true __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 51#L173true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 94#L173-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 13#L378true assume { :end_inline_timeShift } true; 24#L295-2true [2021-11-20 06:30:12,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:30:12,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-11-20 06:30:12,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:30:12,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370908423] [2021-11-20 06:30:12,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:30:12,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:30:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:30:12,930 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:30:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:30:12,990 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:30:12,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:30:12,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1634785052, now seen corresponding path program 1 times [2021-11-20 06:30:12,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:30:12,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446026290] [2021-11-20 06:30:12,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:30:12,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:30:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:30:13,004 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:30:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:30:13,015 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:30:13,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:30:13,017 INFO L85 PathProgramCache]: Analyzing trace with hash -279365976, now seen corresponding path program 1 times [2021-11-20 06:30:13,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:30:13,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119014811] [2021-11-20 06:30:13,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:30:13,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:30:13,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:30:13,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:30:13,253 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:30:13,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119014811] [2021-11-20 06:30:13,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119014811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:30:13,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:30:13,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:30:13,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572641432] [2021-11-20 06:30:13,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:30:13,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:30:13,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:30:13,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:30:13,563 INFO L87 Difference]: Start difference. First operand has 106 states, 105 states have (on average 1.361904761904762) internal successors, (143), 105 states have internal predecessors, (143), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 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) [2021-11-20 06:30:13,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:30:13,757 INFO L93 Difference]: Finished difference Result 263 states and 335 transitions. [2021-11-20 06:30:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:30:13,765 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 263 states and 335 transitions. [2021-11-20 06:30:13,776 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 167 [2021-11-20 06:30:13,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 263 states to 233 states and 305 transitions. [2021-11-20 06:30:13,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 233 [2021-11-20 06:30:13,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 233 [2021-11-20 06:30:13,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 233 states and 305 transitions. [2021-11-20 06:30:13,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 06:30:13,792 INFO L681 BuchiCegarLoop]: Abstraction has 233 states and 305 transitions. [2021-11-20 06:30:13,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states and 305 transitions. [2021-11-20 06:30:13,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 145. [2021-11-20 06:30:13,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 145 states have (on average 1.3103448275862069) internal successors, (190), 144 states have internal predecessors, (190), 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) [2021-11-20 06:30:13,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 190 transitions. [2021-11-20 06:30:13,846 INFO L704 BuchiCegarLoop]: Abstraction has 145 states and 190 transitions. [2021-11-20 06:30:13,846 INFO L587 BuchiCegarLoop]: Abstraction has 145 states and 190 transitions. [2021-11-20 06:30:13,847 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 06:30:13,847 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 145 states and 190 transitions. [2021-11-20 06:30:13,850 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2021-11-20 06:30:13,850 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 06:30:13,850 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 06:30:13,851 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:30:13,852 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:30:13,852 INFO L791 eck$LassoCheckResult]: Stem: 479#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 467#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 387#L561 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 388#L554 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 460#L569 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 461#L140 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 474#L113 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 415#L295-2 [2021-11-20 06:30:13,855 INFO L793 eck$LassoCheckResult]: Loop: 415#L295-2 assume !false; 449#L296 assume test_~splverifierCounter~0#1 < 4; 455#L297 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 456#L305 assume !(0 != test_~tmp~2#1); 411#L305-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 475#L315 assume !(0 != test_~tmp___0~1#1); 416#L315-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 417#L325 assume 0 != test_~tmp___2~0#1; 405#L331-2 assume { :begin_inline_timeShift } true; 399#L361 assume !(0 != ~pumpRunning~0); 400#L361-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret16#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1; 429#L393 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 431#L385-1 assume { :end_inline_processEnvironment__wrappee__base } true; 421#L393-1 assume { :end_inline_processEnvironment } true; 464#L368-1 assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret5#1, __utac_acc__Specification4_spec__1_#t~ret6#1, __utac_acc__Specification4_spec__1_~tmp~1#1, __utac_acc__Specification4_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification4_spec__1_~tmp~1#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~2#1;havoc getWaterLevel_~retValue_acc~2#1;getWaterLevel_~retValue_acc~2#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~2#1; 402#L270 __utac_acc__Specification4_spec__1_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~1#1 := __utac_acc__Specification4_spec__1_#t~ret5#1;havoc __utac_acc__Specification4_spec__1_#t~ret5#1; 403#L173 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1#1); 477#L173-1 assume { :end_inline___utac_acc__Specification4_spec__1 } true; 414#L378 assume { :end_inline_timeShift } true; 415#L295-2 [2021-11-20 06:30:13,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:30:13,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-11-20 06:30:13,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:30:13,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392030307] [2021-11-20 06:30:13,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:30:13,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:30:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:30:13,878 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:30:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:30:13,905 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:30:13,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:30:13,906 INFO L85 PathProgramCache]: Analyzing trace with hash -313172338, now seen corresponding path program 1 times [2021-11-20 06:30:13,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:30:13,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471405245] [2021-11-20 06:30:13,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:30:13,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:30:13,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:30:13,913 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:30:13,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:30:13,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:30:13,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:30:13,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1988971082, now seen corresponding path program 1 times [2021-11-20 06:30:13,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:30:13,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150275258] [2021-11-20 06:30:13,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:30:13,923 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:30:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:30:13,943 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 06:30:13,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 06:30:13,970 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 06:30:18,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 06:30:18 BoogieIcfgContainer [2021-11-20 06:30:18,263 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 06:30:18,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:30:18,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:30:18,265 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:30:18,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:30:12" (3/4) ... [2021-11-20 06:30:18,268 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 06:30:18,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:30:18,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:30:18,403 INFO L158 Benchmark]: Toolchain (without parser) took 7431.88ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 88.6MB in the beginning and 54.2MB in the end (delta: 34.4MB). Peak memory consumption was 60.7MB. Max. memory is 16.1GB. [2021-11-20 06:30:18,403 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 86.0MB. Free memory was 56.7MB in the beginning and 56.6MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:30:18,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 617.04ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 90.6MB in the end (delta: -2.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 06:30:18,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.92ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 87.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:30:18,406 INFO L158 Benchmark]: Boogie Preprocessor took 76.64ms. Allocated memory is still 123.7MB. Free memory was 87.9MB in the beginning and 85.8MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:30:18,407 INFO L158 Benchmark]: RCFGBuilder took 690.45ms. Allocated memory is still 123.7MB. Free memory was 85.8MB in the beginning and 68.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-20 06:30:18,408 INFO L158 Benchmark]: BuchiAutomizer took 5809.18ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 68.7MB in the beginning and 57.4MB in the end (delta: 11.4MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. [2021-11-20 06:30:18,409 INFO L158 Benchmark]: Witness Printer took 137.17ms. Allocated memory is still 148.9MB. Free memory was 57.4MB in the beginning and 54.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 06:30:18,416 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 86.0MB. Free memory was 56.7MB in the beginning and 56.6MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 617.04ms. Allocated memory is still 123.7MB. Free memory was 88.4MB in the beginning and 90.6MB in the end (delta: -2.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.92ms. Allocated memory is still 123.7MB. Free memory was 90.6MB in the beginning and 87.9MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 76.64ms. Allocated memory is still 123.7MB. Free memory was 87.9MB in the beginning and 85.8MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 690.45ms. Allocated memory is still 123.7MB. Free memory was 85.8MB in the beginning and 68.7MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 5809.18ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 68.7MB in the beginning and 57.4MB in the end (delta: 11.4MB). Peak memory consumption was 54.1MB. Max. memory is 16.1GB. * Witness Printer took 137.17ms. Allocated memory is still 148.9MB. Free memory was 57.4MB in the beginning and 54.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 145 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 5.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 88 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 145 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 478 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 478 mSDsluCounter, 798 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 671 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 127 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 295]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42f8f20=0, NULL=1, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7daaef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31706a27=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c169ec6=0, methaneLevelCritical=0, retValue_acc=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73fdaabe=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69c989e3=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27467dbc=29, tmp___2=29, cleanupTimeShifts=4, tmp=0, tmp=1, \result=0, tmp=0, head=0, \result=1, retValue_acc=1, tmp___1=0, NULL=0, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d779508=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 295]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int cleanupTimeShifts = 4; [L195] int waterLevel = 1; [L196] int methaneLevelCritical = 0; [L354] int pumpRunning = 0; [L355] int systemActive = 1; [L743] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L131] int retValue_acc ; [L132] int tmp ; [L136] FCALL select_helpers() [L137] FCALL select_features() [L138] CALL, EXPR valid_product() [L565] int retValue_acc ; [L568] retValue_acc = 1 [L569] return (retValue_acc); [L138] RET, EXPR valid_product() [L138] tmp = valid_product() [L140] COND TRUE \read(tmp) [L142] FCALL setup() [L143] CALL runTest() [L122] CALL test() [L286] int splverifierCounter ; [L287] int tmp ; [L288] int tmp___0 ; [L289] int tmp___1 ; [L290] int tmp___2 ; [L293] splverifierCounter = 0 Loop: [L295] COND TRUE 1 [L297] COND TRUE splverifierCounter < 4 [L303] tmp = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp)) [L313] tmp___0 = __VERIFIER_nondet_int() [L315] COND FALSE !(\read(tmp___0)) [L323] tmp___2 = __VERIFIER_nondet_int() [L325] COND TRUE \read(tmp___2) [L340] CALL timeShift() [L361] COND FALSE !(\read(pumpRunning)) [L368] COND TRUE \read(systemActive) [L370] CALL processEnvironment() [L390] int tmp ; [L393] COND FALSE !(\read(pumpRunning)) [L408] FCALL processEnvironment__wrappee__base() [L370] RET processEnvironment() [L376] CALL __utac_acc__Specification4_spec__1() [L166] int tmp ; [L167] int tmp___0 ; [L171] CALL, EXPR getWaterLevel() [L266] int retValue_acc ; [L269] retValue_acc = waterLevel [L270] return (retValue_acc); [L171] RET, EXPR getWaterLevel() [L171] tmp = getWaterLevel() [L173] COND FALSE !(tmp == 0) [L376] RET __utac_acc__Specification4_spec__1() [L340] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-20 06:30:18,526 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_53d76cd3-7faa-4890-8f16-5035f6a01820/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)