./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU --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 dc29098f4fd0de7b34ca1f86e5228e41fa7841081f2e41f7454108ef1ad7724c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:20:46,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:20:46,439 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:20:46,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:20:46,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:20:46,553 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:20:46,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:20:46,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:20:46,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:20:46,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:20:46,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:20:46,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:20:46,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:20:46,582 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:20:46,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:20:46,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:20:46,593 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:20:46,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:20:46,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:20:46,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:20:46,611 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:20:46,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:20:46,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:20:46,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:20:46,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:20:46,632 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:20:46,633 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:20:46,635 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:20:46,636 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:20:46,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:20:46,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:20:46,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:20:46,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:20:46,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:20:46,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:20:46,647 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:20:46,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:20:46,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:20:46,649 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:20:46,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:20:46,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:20:46,653 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-02 22:20:46,707 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:20:46,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:20:46,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:20:46,709 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:20:46,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:20:46,711 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:20:46,712 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:20:46,712 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-02 22:20:46,712 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-02 22:20:46,713 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-02 22:20:46,714 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-02 22:20:46,714 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-02 22:20:46,715 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-02 22:20:46,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:20:46,715 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-02 22:20:46,716 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:20:46,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:20:46,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-02 22:20:46,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:20:46,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-02 22:20:46,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-02 22:20:46,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-02 22:20:46,718 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-02 22:20:46,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:20:46,718 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-02 22:20:46,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:20:46,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-02 22:20:46,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:20:46,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:20:46,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:20:46,722 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:20:46,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:20:46,725 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-02 22:20:46,725 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_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc29098f4fd0de7b34ca1f86e5228e41fa7841081f2e41f7454108ef1ad7724c [2021-11-02 22:20:47,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:20:47,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:20:47,075 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:20:47,077 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:20:47,078 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:20:47,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2021-11-02 22:20:47,173 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/data/7ef508b43/6ed69d2d057d4373872b48912a277db6/FLAGa2da1de3d [2021-11-02 22:20:47,791 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:20:47,791 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c [2021-11-02 22:20:47,819 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/data/7ef508b43/6ed69d2d057d4373872b48912a277db6/FLAGa2da1de3d [2021-11-02 22:20:48,083 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/data/7ef508b43/6ed69d2d057d4373872b48912a277db6 [2021-11-02 22:20:48,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:20:48,089 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:20:48,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:20:48,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:20:48,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:20:48,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b93c604 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48, skipping insertion in model container [2021-11-02 22:20:48,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:20:48,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:20:48,530 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_afc00b5a-b31e-40c0-a193-4136ad640a8b/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c[15980,15993] [2021-11-02 22:20:48,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:20:48,552 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:20:48,654 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_afc00b5a-b31e-40c0-a193-4136ad640a8b/sv-benchmarks/c/product-lines/minepump_spec4_product14.cil.c[15980,15993] [2021-11-02 22:20:48,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:20:48,710 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:20:48,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48 WrapperNode [2021-11-02 22:20:48,711 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:20:48,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:20:48,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:20:48,714 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:20:48,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:20:48,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:20:48,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:20:48,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:20:48,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,841 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:20:48,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:20:48,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:20:48,863 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:20:48,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (1/1) ... [2021-11-02 22:20:48,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-02 22:20:48,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:20:48,923 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-02 22:20:48,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-02 22:20:48,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-02 22:20:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-02 22:20:48,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:20:48,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:20:50,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:20:50,109 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2021-11-02 22:20:50,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:20:50 BoogieIcfgContainer [2021-11-02 22:20:50,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:20:50,114 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-02 22:20:50,114 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-02 22:20:50,119 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-02 22:20:50,121 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:20:50,121 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.11 10:20:48" (1/3) ... [2021-11-02 22:20:50,123 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cadac9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:20:50, skipping insertion in model container [2021-11-02 22:20:50,123 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:20:50,124 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:20:48" (2/3) ... [2021-11-02 22:20:50,124 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7cadac9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.11 10:20:50, skipping insertion in model container [2021-11-02 22:20:50,124 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-02 22:20:50,125 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:20:50" (3/3) ... [2021-11-02 22:20:50,126 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product14.cil.c [2021-11-02 22:20:50,197 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-02 22:20:50,198 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-02 22:20:50,198 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-02 22:20:50,198 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-02 22:20:50,198 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-02 22:20:50,199 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-02 22:20:50,199 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-02 22:20:50,199 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-02 22:20:50,220 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) [2021-11-02 22:20:50,250 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-11-02 22:20:50,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:20:50,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:20:50,261 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:20:50,262 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:20:50,262 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-02 22:20:50,263 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) [2021-11-02 22:20:50,270 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 41 [2021-11-02 22:20:50,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:20:50,270 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:20:50,272 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:20:50,272 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:20:50,279 INFO L791 eck$LassoCheckResult]: Stem: 50#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 39#L-1true havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 62#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 28#L83true main_#t~ret76 := valid_product_#res;main_~tmp~6 := main_#t~ret76;havoc main_#t~ret76; 44#L864true assume 0 != main_~tmp~6; 11#L841true havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 23#L886-1true [2021-11-02 22:20:50,280 INFO L793 eck$LassoCheckResult]: Loop: 23#L886-1true assume !false; 67#L554true assume test_~splverifierCounter~0 < 4; 61#L555true test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 65#L563true assume !(0 != test_~tmp~3); 16#L563-1true test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 53#L573true assume !(0 != test_~tmp___0~0); 57#L573-1true test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 32#L583true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 48#L591-2true assume !(0 != ~pumpRunning~0); 33#L622true assume !(0 != ~systemActive~0); 45#L629true havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 60#L169true __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 66#L886true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 23#L886-1true [2021-11-02 22:20:50,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:20:50,287 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-02 22:20:50,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:20:50,300 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733262968] [2021-11-02 22:20:50,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:20:50,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:20:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:20:50,652 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:20:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:20:50,930 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:20:50,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:20:50,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1680944957, now seen corresponding path program 1 times [2021-11-02 22:20:50,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:20:50,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434969077] [2021-11-02 22:20:50,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:20:50,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:20:50,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:20:51,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:20:51,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:20:51,057 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434969077] [2021-11-02 22:20:51,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434969077] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:20:51,059 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:20:51,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-02 22:20:51,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954357890] [2021-11-02 22:20:51,105 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-02 22:20:51,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:20:51,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:20:51,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:20:51,145 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 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2021-11-02 22:20:51,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:20:51,216 INFO L93 Difference]: Finished difference Result 66 states and 89 transitions. [2021-11-02 22:20:51,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:20:51,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 89 transitions. [2021-11-02 22:20:51,233 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-11-02 22:20:51,243 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 59 states and 81 transitions. [2021-11-02 22:20:51,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 59 [2021-11-02 22:20:51,245 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 59 [2021-11-02 22:20:51,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 59 states and 81 transitions. [2021-11-02 22:20:51,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-02 22:20:51,249 INFO L681 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-11-02 22:20:51,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states and 81 transitions. [2021-11-02 22:20:51,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-11-02 22:20:51,290 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) [2021-11-02 22:20:51,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 81 transitions. [2021-11-02 22:20:51,297 INFO L704 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-11-02 22:20:51,298 INFO L587 BuchiCegarLoop]: Abstraction has 59 states and 81 transitions. [2021-11-02 22:20:51,298 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-02 22:20:51,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 59 states and 81 transitions. [2021-11-02 22:20:51,306 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 39 [2021-11-02 22:20:51,306 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-02 22:20:51,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-02 22:20:51,308 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:20:51,309 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:20:51,309 INFO L791 eck$LassoCheckResult]: Stem: 194#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(21);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(21);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(30);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(9);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(25);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 189#L-1 havoc main_#res;havoc main_#t~ret76, main_~retValue_acc~9, main_~tmp~6;havoc main_~retValue_acc~9;havoc main_~tmp~6; 190#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 179#L83 main_#t~ret76 := valid_product_#res;main_~tmp~6 := main_#t~ret76;havoc main_#t~ret76; 180#L864 assume 0 != main_~tmp~6; 154#L841 havoc test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_#t~nondet56, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 155#L886-1 [2021-11-02 22:20:51,311 INFO L793 eck$LassoCheckResult]: Loop: 155#L886-1 assume !false; 175#L554 assume test_~splverifierCounter~0 < 4; 198#L555 test_~tmp~3 := test_#t~nondet53;havoc test_#t~nondet53; 199#L563 assume !(0 != test_~tmp~3); 164#L563-1 test_~tmp___0~0 := test_#t~nondet54;havoc test_#t~nondet54; 165#L573 assume !(0 != test_~tmp___0~0); 169#L573-1 test_~tmp___2~0 := test_#t~nondet55;havoc test_#t~nondet55; 182#L583 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 183#L591-2 assume !(0 != ~pumpRunning~0); 185#L622 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 186#L654 assume !(0 != ~pumpRunning~0); 181#L629 havoc __utac_acc__Specification4_spec__1_#t~ret77, __utac_acc__Specification4_spec__1_#t~ret78, __utac_acc__Specification4_spec__1_~tmp~7, __utac_acc__Specification4_spec__1_~tmp___0~1;havoc __utac_acc__Specification4_spec__1_~tmp~7;havoc __utac_acc__Specification4_spec__1_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~3;havoc getWaterLevel_~retValue_acc~3;getWaterLevel_~retValue_acc~3 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~3; 192#L169 __utac_acc__Specification4_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~7 := __utac_acc__Specification4_spec__1_#t~ret77;havoc __utac_acc__Specification4_spec__1_#t~ret77; 197#L886 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7); 155#L886-1 [2021-11-02 22:20:51,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:20:51,312 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-02 22:20:51,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:20:51,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410698143] [2021-11-02 22:20:51,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:20:51,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:20:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:20:51,405 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:20:51,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:20:51,530 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:20:51,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:20:51,535 INFO L85 PathProgramCache]: Analyzing trace with hash -590214405, now seen corresponding path program 1 times [2021-11-02 22:20:51,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:20:51,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589161339] [2021-11-02 22:20:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:20:51,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:20:51,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:20:51,551 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:20:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:20:51,567 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:20:51,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:20:51,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1012825121, now seen corresponding path program 1 times [2021-11-02 22:20:51,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:20:51,574 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074448420] [2021-11-02 22:20:51,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:20:51,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:20:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:20:51,662 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-02 22:20:51,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-02 22:20:51,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-02 22:22:04,899 WARN L207 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-02 22:23:21,563 WARN L207 SmtUtils]: Spent 37.36 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-02 22:23:21,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.11 10:23:21 BoogieIcfgContainer [2021-11-02 22:23:21,736 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-02 22:23:21,737 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-02 22:23:21,737 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-02 22:23:21,738 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-02 22:23:21,738 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:20:50" (3/4) ... [2021-11-02 22:23:21,742 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-02 22:23:21,825 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/witness.graphml [2021-11-02 22:23:21,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-02 22:23:21,827 INFO L168 Benchmark]: Toolchain (without parser) took 153737.13 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 60.0 MB in the beginning and 77.0 MB in the end (delta: -17.1 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2021-11-02 22:23:21,828 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 92.3 MB. Free memory was 50.1 MB in the beginning and 50.1 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-02 22:23:21,829 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.11 ms. Allocated memory is still 92.3 MB. Free memory was 59.7 MB in the beginning and 62.0 MB in the end (delta: -2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-02 22:23:21,830 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.56 ms. Allocated memory is still 92.3 MB. Free memory was 62.0 MB in the beginning and 59.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:23:21,831 INFO L168 Benchmark]: Boogie Preprocessor took 49.35 ms. Allocated memory is still 92.3 MB. Free memory was 59.1 MB in the beginning and 57.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:23:21,832 INFO L168 Benchmark]: RCFGBuilder took 1250.21 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 57.0 MB in the beginning and 84.2 MB in the end (delta: -27.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2021-11-02 22:23:21,833 INFO L168 Benchmark]: BuchiAutomizer took 151622.47 ms. Allocated memory is still 121.6 MB. Free memory was 84.2 MB in the beginning and 79.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 60.7 MB. Max. memory is 16.1 GB. [2021-11-02 22:23:21,834 INFO L168 Benchmark]: Witness Printer took 88.76 ms. Allocated memory is still 121.6 MB. Free memory was 79.1 MB in the beginning and 77.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-02 22:23:21,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 92.3 MB. Free memory was 50.1 MB in the beginning and 50.1 MB in the end (delta: 38.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 620.11 ms. Allocated memory is still 92.3 MB. Free memory was 59.7 MB in the beginning and 62.0 MB in the end (delta: -2.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.56 ms. Allocated memory is still 92.3 MB. Free memory was 62.0 MB in the beginning and 59.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.35 ms. Allocated memory is still 92.3 MB. Free memory was 59.1 MB in the beginning and 57.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1250.21 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 57.0 MB in the beginning and 84.2 MB in the end (delta: -27.2 MB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 151622.47 ms. Allocated memory is still 121.6 MB. Free memory was 84.2 MB in the beginning and 79.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 60.7 MB. Max. memory is 16.1 GB. * Witness Printer took 88.76 ms. Allocated memory is still 121.6 MB. Free memory was 79.1 MB in the beginning and 77.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 59 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 151.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 151.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s 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: 86 SDtfs, 86 SDslu, 0 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 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: 553]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=13915} State at position 1 is {NULL=13916, NULL=0, NULL=0, NULL=0, NULL=0, NULL=13915, NULL=13928, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35a6ed89=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17b5b1bd=0, NULL=13940, NULL=0, NULL=0, NULL=0, NULL=13929, NULL=13918, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62522e6b=0, NULL=13923, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@55eff7fd=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@84bf747=0, NULL=13924, tmp=0, NULL=0, NULL=0, NULL=13937, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=13938, tmp___0=0, NULL=13925, cleanupTimeShifts=4, NULL=13936, NULL=13926, NULL=13922, NULL=0, systemActive=1, waterLevel=1, NULL=13931, \result=1, NULL=0, NULL=0, NULL=13930, tmp___0=0, NULL=0, retValue_acc=1, NULL=13921, \result=1, head=0, pumpRunning=0, NULL=13934, \result=0, NULL=0, NULL=0, tmp=1, NULL=0, NULL=13932, NULL=13933, NULL=13935, NULL=0, NULL=13943, NULL=0, NULL=13917, retValue_acc=1, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@286f41da=0, tmp___2=70, NULL=0, splverifierCounter=0, NULL=0, NULL=0, NULL=13942, NULL=13919, NULL=13920, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7953362b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4828811f=70, head=0, tmp=0, NULL=0, NULL=0, NULL=13939, NULL=0, NULL=0, NULL=13927, NULL=0, NULL=13941} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L94] int waterLevel = 1; [L95] int methaneLevelCritical = 0; [L343] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L614] int pumpRunning = 0; [L615] int systemActive = 1; [L782] int cleanupTimeShifts = 4; [L855] int retValue_acc ; [L856] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L862] tmp = valid_product() [L864] COND TRUE \read(tmp) [L544] int splverifierCounter ; [L545] int tmp ; [L546] int tmp___0 ; [L547] int tmp___1 ; [L548] int tmp___2 ; [L551] splverifierCounter = 0 Loop: [L553] COND TRUE 1 [L555] COND TRUE splverifierCounter < 4 [L561] tmp = __VERIFIER_nondet_int() [L563] COND FALSE !(\read(tmp)) [L571] tmp___0 = __VERIFIER_nondet_int() [L573] COND FALSE !(\read(tmp___0)) [L581] tmp___2 = __VERIFIER_nondet_int() [L583] COND TRUE \read(tmp___2) [L768] systemActive = 1 [L622] COND FALSE !(\read(pumpRunning)) [L629] COND TRUE \read(systemActive) [L651] int tmp ; [L654] COND FALSE !(\read(pumpRunning)) [L879] int tmp ; [L880] int tmp___0 ; [L165] int retValue_acc ; [L168] retValue_acc = waterLevel [L169] return (retValue_acc); [L884] tmp = getWaterLevel() [L886] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-02 22:23:21,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc00b5a-b31e-40c0-a193-4136ad640a8b/bin/uautomizer-tBqnrhUYjU/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)