./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/not-04-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/not-04-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8 --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 64bit --witnessprinter.graph.data.programhash f815f3ab50b7f44d2a4cc7a3cc9776599ba436b7ffe87c8d1b9c4b6bd093d6ef --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 11:24:04,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:24:04,456 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:24:04,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:24:04,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:24:04,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:24:04,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:24:04,480 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:24:04,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:24:04,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:24:04,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:24:04,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:24:04,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:24:04,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:24:04,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:24:04,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:24:04,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:24:04,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:24:04,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:24:04,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:24:04,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:24:04,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:24:04,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:24:04,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:24:04,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:24:04,503 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:24:04,503 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:24:04,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:24:04,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:24:04,505 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:24:04,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:24:04,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:24:04,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:24:04,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:24:04,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:24:04,510 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:24:04,511 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:24:04,511 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:24:04,511 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:24:04,512 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:24:04,513 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:24:04,514 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-16 11:24:04,537 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:24:04,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:24:04,537 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:24:04,538 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:24:04,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:24:04,539 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:24:04,539 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:24:04,539 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-16 11:24:04,539 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-16 11:24:04,540 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-16 11:24:04,540 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-16 11:24:04,540 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-16 11:24:04,540 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-16 11:24:04,540 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:24:04,541 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:24:04,541 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:24:04,541 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:24:04,541 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-16 11:24:04,541 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-16 11:24:04,541 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-16 11:24:04,542 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:24:04,542 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-16 11:24:04,542 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:24:04,542 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-16 11:24:04,542 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:24:04,543 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:24:04,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:24:04,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:24:04,544 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-16 11:24:04,544 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_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f815f3ab50b7f44d2a4cc7a3cc9776599ba436b7ffe87c8d1b9c4b6bd093d6ef [2022-11-16 11:24:04,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:24:04,898 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:24:04,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:24:04,902 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:24:04,903 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:24:04,904 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/termination-bwb/not-04-false.c [2022-11-16 11:24:04,974 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/data/a854f1952/cc978399e0104af6aa3b2ef2056187b3/FLAGd821af0b0 [2022-11-16 11:24:05,447 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:24:05,447 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/sv-benchmarks/c/termination-bwb/not-04-false.c [2022-11-16 11:24:05,453 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/data/a854f1952/cc978399e0104af6aa3b2ef2056187b3/FLAGd821af0b0 [2022-11-16 11:24:05,831 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/data/a854f1952/cc978399e0104af6aa3b2ef2056187b3 [2022-11-16 11:24:05,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:24:05,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:24:05,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:24:05,837 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:24:05,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:24:05,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:24:05" (1/1) ... [2022-11-16 11:24:05,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51864e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:05, skipping insertion in model container [2022-11-16 11:24:05,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:24:05" (1/1) ... [2022-11-16 11:24:05,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:24:05,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:24:06,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:24:06,086 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:24:06,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:24:06,107 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:24:06,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06 WrapperNode [2022-11-16 11:24:06,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:24:06,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:24:06,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:24:06,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:24:06,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,137 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-11-16 11:24:06,137 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:24:06,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:24:06,138 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:24:06,138 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:24:06,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,155 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:24:06,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:24:06,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:24:06,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:24:06,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (1/1) ... [2022-11-16 11:24:06,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:06,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:06,196 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:06,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-16 11:24:06,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:24:06,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:24:06,309 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:24:06,312 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:24:06,418 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:24:06,427 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:24:06,427 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 11:24:06,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:06 BoogieIcfgContainer [2022-11-16 11:24:06,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:24:06,433 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-16 11:24:06,433 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-16 11:24:06,438 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-16 11:24:06,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:24:06,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 16.11 11:24:05" (1/3) ... [2022-11-16 11:24:06,440 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c42d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:24:06, skipping insertion in model container [2022-11-16 11:24:06,441 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:24:06,441 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:24:06" (2/3) ... [2022-11-16 11:24:06,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c42d08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 16.11 11:24:06, skipping insertion in model container [2022-11-16 11:24:06,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-16 11:24:06,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:06" (3/3) ... [2022-11-16 11:24:06,443 INFO L332 chiAutomizerObserver]: Analyzing ICFG not-04-false.c [2022-11-16 11:24:06,516 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-16 11:24:06,516 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-16 11:24:06,517 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-16 11:24:06,517 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-16 11:24:06,517 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-16 11:24:06,517 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-16 11:24:06,517 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-16 11:24:06,518 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-16 11:24:06,522 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-11-16 11:24:06,540 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-16 11:24:06,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:24:06,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:24:06,546 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:24:06,546 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 11:24:06,546 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-16 11:24:06,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.4285714285714286) internal successors, (10), 7 states have internal predecessors, (10), 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) [2022-11-16 11:24:06,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2022-11-16 11:24:06,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-16 11:24:06,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-16 11:24:06,549 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-16 11:24:06,549 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-16 11:24:06,556 INFO L748 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~a~0#1, main_~x~0#1, main_~y~0#1;havoc main_~a~0#1;havoc main_~x~0#1;havoc main_~y~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := 0; 6#L18-2true [2022-11-16 11:24:06,557 INFO L750 eck$LassoCheckResult]: Loop: 6#L18-2true assume !!(main_~x~0#1 < 0); 4#L18true assume !(main_~x~0#1 < 0 && main_~y~0#1 >= 0);main_~x~0#1 := main_~x~0#1 - 1; 6#L18-2true [2022-11-16 11:24:06,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:06,565 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-16 11:24:06,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:06,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828854123] [2022-11-16 11:24:06,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:06,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:24:06,663 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:24:06,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:24:06,694 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:24:06,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:06,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1318, now seen corresponding path program 1 times [2022-11-16 11:24:06,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:06,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129527509] [2022-11-16 11:24:06,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:06,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:24:06,722 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:24:06,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:24:06,733 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:24:06,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:24:06,745 INFO L85 PathProgramCache]: Analyzing trace with hash 925800, now seen corresponding path program 1 times [2022-11-16 11:24:06,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:24:06,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394916705] [2022-11-16 11:24:06,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:24:06,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:24:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:24:06,756 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:24:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:24:06,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:24:06,900 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:24:06,915 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:24:06,915 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:24:06,915 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:24:06,915 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:24:06,916 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:06,916 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:24:06,916 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:24:06,916 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-04-false.c_Iteration1_Loop [2022-11-16 11:24:06,916 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:24:06,917 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:24:06,942 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:24:06,975 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:24:07,045 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:24:07,046 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:24:07,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:07,054 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:07,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-16 11:24:07,063 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:24:07,064 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:24:07,103 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:24:07,103 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=-1} Honda state: {ULTIMATE.start_main_~y~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:24:07,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:24:07,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:07,114 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:07,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-16 11:24:07,119 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:24:07,123 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:24:07,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:24:07,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:07,171 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:07,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:24:07,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:24:07,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-16 11:24:07,218 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:24:07,218 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [9, 1, 4] Nus: [0, 1] [2022-11-16 11:24:07,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:24:07,239 INFO L210 LassoAnalysis]: Preferences: [2022-11-16 11:24:07,239 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-16 11:24:07,239 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-16 11:24:07,240 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-16 11:24:07,240 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-16 11:24:07,240 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-16 11:24:07,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-16 11:24:07,242 INFO L133 ssoRankerPreferences]: Filename of dumped script: not-04-false.c_Iteration1_Lasso [2022-11-16 11:24:07,243 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-16 11:24:07,243 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-16 11:24:07,244 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:24:07,255 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:24:07,260 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:24:07,266 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:24:07,269 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:24:07,281 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-16 11:24:07,354 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-16 11:24:07,354 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-16 11:24:07,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:07,363 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:07,371 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:24:07,371 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:24:07,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-16 11:24:07,395 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:24:07,395 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0#1=-1} Honda state: {ULTIMATE.start_main_~y~0#1=-1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:24:07,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:24:07,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:07,405 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:07,411 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:24:07,411 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:24:07,425 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-16 11:24:07,435 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:24:07,435 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1#1=0} Honda state: {ULTIMATE.start_main_#t~nondet1#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:24:07,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:24:07,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:07,441 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:07,447 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:24:07,448 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:24:07,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-16 11:24:07,466 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:24:07,466 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res#1=0} Honda state: {ULTIMATE.start_main_#res#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:24:07,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:24:07,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:07,481 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:07,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:24:07,492 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:24:07,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-16 11:24:07,519 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:24:07,519 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0#1=0} Honda state: {ULTIMATE.start_main_#t~nondet0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:24:07,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:24:07,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:07,529 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:07,537 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:24:07,537 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:24:07,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2022-11-16 11:24:07,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2022-11-16 11:24:07,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:07,576 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:07,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2022-11-16 11:24:07,581 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-16 11:24:07,581 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:24:07,614 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:24:07,615 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0#1=-1} Honda state: {ULTIMATE.start_main_~x~0#1=-1} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0#1=0}, {ULTIMATE.start_main_~x~0#1=-1}, {ULTIMATE.start_main_~x~0#1=0}] Lambdas: [9, 1, 4] Nus: [0, 1] [2022-11-16 11:24:07,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2022-11-16 11:24:07,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-16 11:24:07,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:24:07,625 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-16 11:24:07,635 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-16 11:24:07,636 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-16 11:24:07,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2022-11-16 11:24:07,659 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-16 11:24:07,659 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~a~0#1=0} Honda state: {ULTIMATE.start_main_~a~0#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-11-16 11:24:07,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2022-11-16 11:24:07,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 16.11 11:24:07 BoogieIcfgContainer [2022-11-16 11:24:07,685 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-16 11:24:07,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:24:07,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:24:07,686 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:24:07,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:24:06" (3/4) ... [2022-11-16 11:24:07,689 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-16 11:24:07,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 11:24:07,718 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:24:07,719 INFO L158 Benchmark]: Toolchain (without parser) took 1883.84ms. Allocated memory is still 134.2MB. Free memory was 99.3MB in the beginning and 99.5MB in the end (delta: -191.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:24:07,720 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 65.9MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:24:07,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.15ms. Allocated memory is still 134.2MB. Free memory was 99.0MB in the beginning and 110.3MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:24:07,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.19ms. Allocated memory is still 134.2MB. Free memory was 110.3MB in the beginning and 108.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:24:07,721 INFO L158 Benchmark]: Boogie Preprocessor took 18.71ms. Allocated memory is still 134.2MB. Free memory was 108.8MB in the beginning and 107.9MB in the end (delta: 909.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:24:07,722 INFO L158 Benchmark]: RCFGBuilder took 272.53ms. Allocated memory is still 134.2MB. Free memory was 107.9MB in the beginning and 99.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 11:24:07,723 INFO L158 Benchmark]: BuchiAutomizer took 1252.32ms. Allocated memory is still 134.2MB. Free memory was 99.5MB in the beginning and 101.2MB in the end (delta: -1.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-16 11:24:07,723 INFO L158 Benchmark]: Witness Printer took 32.19ms. Allocated memory is still 134.2MB. Free memory was 101.2MB in the beginning and 99.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:24:07,726 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 92.3MB. Free memory was 65.9MB in the beginning and 65.9MB in the end (delta: 21.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.15ms. Allocated memory is still 134.2MB. Free memory was 99.0MB in the beginning and 110.3MB in the end (delta: -11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.19ms. Allocated memory is still 134.2MB. Free memory was 110.3MB in the beginning and 108.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.71ms. Allocated memory is still 134.2MB. Free memory was 108.8MB in the beginning and 107.9MB in the end (delta: 909.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 272.53ms. Allocated memory is still 134.2MB. Free memory was 107.9MB in the beginning and 99.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1252.32ms. Allocated memory is still 134.2MB. Free memory was 99.5MB in the beginning and 101.2MB in the end (delta: -1.6MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 32.19ms. Allocated memory is still 134.2MB. Free memory was 101.2MB in the beginning and 99.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 17]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {y=-1, x=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36f06aaf=0, a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16afdb90=0, \result=0} State at position 1 is {y=-1, x=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36f06aaf=0, a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16afdb90=0, \result=0} For i>1, the state at position i is {y=-1 + sum_{k=0}^i 0, x=-1 + sum_{k=0}^i -1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36f06aaf=0 + sum_{k=0}^i 0, a=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@16afdb90=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [9, 1, 4] Mus: [0, 1] - NonterminatingLassoResult [Line: 17]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int a, x, y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] a = 0 Loop: [L17] COND TRUE x<0 [L18] COND FALSE !(x < 0 && y>= 0) [L21] x = x-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-16 11:24:07,762 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e309202c-70b6-4cca-965d-809929e86250/bin/uautomizer-tPACEb0tL8/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)