./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/and-04-false.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 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_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/and-04-false.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a --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 f308da08c261d59eb95c200bdea9061877e2637c8f9041803c89ef49e63b8c52 --- 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-b5237d8 [2022-11-21 13:45:09,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:45:09,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:45:09,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:45:09,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:45:09,941 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:45:09,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:45:09,948 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:45:09,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:45:09,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:45:09,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:45:09,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:45:09,963 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:45:09,969 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:45:09,970 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:45:09,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:45:09,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:45:09,977 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:45:09,978 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:45:09,986 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:45:09,988 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:45:09,991 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:45:09,992 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:45:09,994 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:45:10,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:45:10,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:45:10,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:45:10,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:45:10,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:45:10,011 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:45:10,011 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:45:10,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:45:10,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:45:10,015 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:45:10,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:45:10,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:45:10,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:45:10,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:45:10,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:45:10,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:45:10,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:45:10,023 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-11-21 13:45:10,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:45:10,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:45:10,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:45:10,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:45:10,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:45:10,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:45:10,070 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:45:10,070 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 13:45:10,071 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 13:45:10,071 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 13:45:10,072 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 13:45:10,073 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 13:45:10,073 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 13:45:10,073 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:45:10,074 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 13:45:10,074 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:45:10,074 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:45:10,074 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 13:45:10,075 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 13:45:10,075 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 13:45:10,075 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:45:10,075 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 13:45:10,076 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:45:10,076 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 13:45:10,076 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:45:10,076 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:45:10,077 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:45:10,078 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:45:10,079 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 13:45:10,079 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_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f308da08c261d59eb95c200bdea9061877e2637c8f9041803c89ef49e63b8c52 [2022-11-21 13:45:10,399 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:45:10,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:45:10,441 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:45:10,442 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:45:10,443 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:45:10,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-bwb/and-04-false.c [2022-11-21 13:45:13,925 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:45:14,175 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:45:14,175 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/sv-benchmarks/c/termination-bwb/and-04-false.c [2022-11-21 13:45:14,217 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/data/f87b533ed/d24c3e66fc2f49828f611ec51d622d90/FLAG2765635c0 [2022-11-21 13:45:14,239 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/data/f87b533ed/d24c3e66fc2f49828f611ec51d622d90 [2022-11-21 13:45:14,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:45:14,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:45:14,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:45:14,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:45:14,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:45:14,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ed7ac75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14, skipping insertion in model container [2022-11-21 13:45:14,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:45:14,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:45:14,424 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:45:14,430 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:45:14,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:45:14,451 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:45:14,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14 WrapperNode [2022-11-21 13:45:14,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:45:14,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:45:14,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:45:14,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:45:14,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,482 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-11-21 13:45:14,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:45:14,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:45:14,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:45:14,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:45:14,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,494 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,494 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,501 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:45:14,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:45:14,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:45:14,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:45:14,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (1/1) ... [2022-11-21 13:45:14,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:45:14,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:14,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:14,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 13:45:14,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:45:14,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:45:14,641 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:45:14,643 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:45:14,743 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:45:14,751 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:45:14,752 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 13:45:14,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:14 BoogieIcfgContainer [2022-11-21 13:45:14,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:45:14,755 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 13:45:14,755 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 13:45:14,759 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 13:45:14,760 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 13:45:14,760 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 01:45:14" (1/3) ... [2022-11-21 13:45:14,761 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6976ca23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 01:45:14, skipping insertion in model container [2022-11-21 13:45:14,761 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 13:45:14,761 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:45:14" (2/3) ... [2022-11-21 13:45:14,762 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6976ca23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 01:45:14, skipping insertion in model container [2022-11-21 13:45:14,762 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 13:45:14,762 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:14" (3/3) ... [2022-11-21 13:45:14,764 INFO L332 chiAutomizerObserver]: Analyzing ICFG and-04-false.c [2022-11-21 13:45:14,827 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 13:45:14,828 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 13:45:14,828 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 13:45:14,828 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 13:45:14,828 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 13:45:14,828 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 13:45:14,828 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 13:45:14,828 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 13:45:14,833 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2022-11-21 13:45:14,848 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-21 13:45:14,849 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:45:14,849 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:45:14,853 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 13:45:14,854 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 13:45:14,854 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 13:45:14,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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) [2022-11-21 13:45:14,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2022-11-21 13:45:14,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 13:45:14,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 13:45:14,856 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-11-21 13:45:14,856 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-11-21 13:45:14,862 INFO L748 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#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_~x~0#1;havoc main_~x~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 7#L16-2true [2022-11-21 13:45:14,863 INFO L750 eck$LassoCheckResult]: Loop: 7#L16-2true assume !!(main_~x~0#1 < 8); 2#L16true assume !(0 == main_~x~0#1);main_~x~0#1 := main_~x~0#1 - 1; 7#L16-2true [2022-11-21 13:45:14,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:14,870 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-11-21 13:45:14,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:14,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548722854] [2022-11-21 13:45:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:14,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:45:14,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:45:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:45:14,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:45:14,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:14,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1330, now seen corresponding path program 1 times [2022-11-21 13:45:14,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:14,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614657324] [2022-11-21 13:45:14,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:14,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:14,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:45:14,996 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:45:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:45:15,002 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:45:15,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:45:15,004 INFO L85 PathProgramCache]: Analyzing trace with hash 925812, now seen corresponding path program 1 times [2022-11-21 13:45:15,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:45:15,005 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552670980] [2022-11-21 13:45:15,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:45:15,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:45:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:45:15,013 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:45:15,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:45:15,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:45:15,112 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:45:15,113 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:45:15,113 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:45:15,113 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:45:15,113 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:45:15,113 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:45:15,114 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:45:15,114 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:45:15,114 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04-false.c_Iteration1_Loop [2022-11-21 13:45:15,114 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:45:15,115 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:45:15,133 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:45:15,247 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:45:15,247 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:45:15,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:45:15,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:15,288 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:15,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-21 13:45:15,350 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:45:15,350 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:45:15,383 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-11-21 13:45:15,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:45:15,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:15,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:15,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-21 13:45:15,389 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:45:15,390 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:45:15,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:45:15,473 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=0}, {ULTIMATE.start_main_~x~0#1=-1}] Lambdas: [0, 14, 1] Nus: [1, 0] [2022-11-21 13:45:15,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:15,492 INFO L210 LassoAnalysis]: Preferences: [2022-11-21 13:45:15,492 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-21 13:45:15,492 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-21 13:45:15,493 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-21 13:45:15,493 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-21 13:45:15,493 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:45:15,493 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-21 13:45:15,493 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-21 13:45:15,493 INFO L133 ssoRankerPreferences]: Filename of dumped script: and-04-false.c_Iteration1_Lasso [2022-11-21 13:45:15,494 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-21 13:45:15,494 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-21 13:45:15,496 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:45:15,508 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:45:15,512 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:45:15,515 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-21 13:45:15,626 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-21 13:45:15,626 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-21 13:45:15,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:45:15,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:15,628 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:15,640 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:45:15,640 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:45:15,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-21 13:45:15,693 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:45:15,693 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: [] [2022-11-21 13:45:15,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:15,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:45:15,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:15,704 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:15,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-21 13:45:15,709 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:45:15,709 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:45:15,731 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:45:15,731 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: [] [2022-11-21 13:45:15,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:15,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:45:15,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:15,738 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:15,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:45:15,748 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:45:15,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-11-21 13:45:15,783 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:45:15,784 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: [] [2022-11-21 13:45:15,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:15,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:45:15,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:15,791 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:15,800 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-21 13:45:15,800 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:45:15,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-11-21 13:45:15,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:15,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 13:45:15,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:45:15,875 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 13:45:15,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2022-11-21 13:45:15,879 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-21 13:45:15,879 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-21 13:45:15,927 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-11-21 13:45:15,927 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=0}, {ULTIMATE.start_main_~x~0#1=-1}] Lambdas: [0, 14, 1] Nus: [1, 0] [2022-11-21 13:45:15,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2022-11-21 13:45:15,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 01:45:15 BoogieIcfgContainer [2022-11-21 13:45:15,952 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 13:45:15,953 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:45:15,953 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:45:15,953 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:45:15,954 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:45:14" (3/4) ... [2022-11-21 13:45:15,956 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-21 13:45:15,988 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:45:15,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:45:15,990 INFO L158 Benchmark]: Toolchain (without parser) took 1742.06ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 125.8MB in the beginning and 167.3MB in the end (delta: -41.5MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2022-11-21 13:45:15,991 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:45:15,992 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.67ms. Allocated memory is still 155.2MB. Free memory was 125.8MB in the beginning and 116.5MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 13:45:15,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.36ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 115.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:45:15,993 INFO L158 Benchmark]: Boogie Preprocessor took 19.34ms. Allocated memory is still 155.2MB. Free memory was 115.4MB in the beginning and 114.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:45:15,994 INFO L158 Benchmark]: RCFGBuilder took 250.33ms. Allocated memory is still 155.2MB. Free memory was 114.4MB in the beginning and 105.4MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 13:45:15,995 INFO L158 Benchmark]: BuchiAutomizer took 1197.21ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 105.4MB in the beginning and 168.4MB in the end (delta: -63.0MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-11-21 13:45:15,999 INFO L158 Benchmark]: Witness Printer took 35.91ms. Allocated memory is still 199.2MB. Free memory was 168.4MB in the beginning and 167.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:45:16,013 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 80.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 197.67ms. Allocated memory is still 155.2MB. Free memory was 125.8MB in the beginning and 116.5MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.36ms. Allocated memory is still 155.2MB. Free memory was 116.5MB in the beginning and 115.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.34ms. Allocated memory is still 155.2MB. Free memory was 115.4MB in the beginning and 114.4MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 250.33ms. Allocated memory is still 155.2MB. Free memory was 114.4MB in the beginning and 105.4MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1197.21ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 105.4MB in the beginning and 168.4MB in the end (delta: -63.0MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Witness Printer took 35.91ms. Allocated memory is still 199.2MB. Free memory was 168.4MB in the beginning and 167.3MB in the end (delta: 1.0MB). There was no memory consumed. 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 1.0s. 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: inital14 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 15]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {x=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@988c113=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76de93e0=0, \result=0} State at position 1 is {x=-1, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@988c113=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76de93e0=0, \result=0} For i>1, the state at position i is {x=-1 + sum_{k=0}^i -1, org.eclipse.cdt.internal.core.dom.parser.c.CASTBinaryExpression@988c113=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76de93e0=0 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 1GEVs Lambdas: [0, 14, 1] Mus: [1, 0] - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L13] int x; [L14] x = __VERIFIER_nondet_int() Loop: [L15] COND TRUE x < 8 [L16] COND FALSE !(x == 0) [L20] x = x-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-21 13:45:16,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f58d6f7a-0d60-4347-b914-fc6343b8f58e/bin/uautomizer-vX5HgA9Q3a/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)