./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d --- 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-8393723 [2022-11-18 20:29:00,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:29:00,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:29:00,912 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:29:00,913 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:29:00,914 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:29:00,916 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:29:00,918 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:29:00,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:29:00,926 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:29:00,928 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:29:00,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:29:00,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:29:00,935 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:29:00,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:29:00,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:29:00,943 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:29:00,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:29:00,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:29:00,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:29:00,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:29:00,968 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:29:00,969 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:29:00,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:29:00,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:29:00,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:29:00,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:29:00,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:29:00,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:29:00,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:29:00,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:29:00,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:29:00,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:29:00,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:29:00,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:29:00,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:29:00,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:29:00,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:29:00,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:29:00,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:29:00,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:29:00,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-18 20:29:01,037 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:29:01,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:29:01,038 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:29:01,038 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:29:01,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:29:01,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:29:01,040 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:29:01,040 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-18 20:29:01,041 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-18 20:29:01,041 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-18 20:29:01,041 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-18 20:29:01,041 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-18 20:29:01,041 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-18 20:29:01,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:29:01,042 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:29:01,042 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:29:01,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:29:01,043 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:29:01,043 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:29:01,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-18 20:29:01,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-18 20:29:01,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-18 20:29:01,044 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:29:01,044 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:29:01,044 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-18 20:29:01,045 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:29:01,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-18 20:29:01,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:29:01,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:29:01,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:29:01,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:29:01,047 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-18 20:29:01,047 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_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8cf5a35873afe0e5012214bd680ff6c9f10002775e1599934b6c286bf71e0e3d [2022-11-18 20:29:01,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:29:01,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:29:01,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:29:01,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:29:01,449 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:29:01,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2022-11-18 20:29:01,522 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/data/9c1e6f3dd/dcfbec6be7fb43079f1ac175de27ca78/FLAG44ba45973 [2022-11-18 20:29:02,016 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:29:02,017 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c [2022-11-18 20:29:02,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/data/9c1e6f3dd/dcfbec6be7fb43079f1ac175de27ca78/FLAG44ba45973 [2022-11-18 20:29:02,412 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/data/9c1e6f3dd/dcfbec6be7fb43079f1ac175de27ca78 [2022-11-18 20:29:02,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:29:02,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:29:02,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:29:02,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:29:02,426 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:29:02,427 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5828dd09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02, skipping insertion in model container [2022-11-18 20:29:02,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:29:02,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:29:02,670 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2022-11-18 20:29:02,674 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2022-11-18 20:29:02,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:29:02,691 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:29:02,707 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[354,367] [2022-11-18 20:29:02,710 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/sv-benchmarks/c/recursive-simple/afterrec_2calls-1.c[442,455] [2022-11-18 20:29:02,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:29:02,729 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:29:02,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02 WrapperNode [2022-11-18 20:29:02,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:29:02,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:29:02,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:29:02,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:29:02,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,767 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2022-11-18 20:29:02,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:29:02,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:29:02,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:29:02,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:29:02,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,793 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:29:02,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:29:02,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:29:02,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:29:02,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (1/1) ... [2022-11-18 20:29:02,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:29:02,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:29:02,839 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:29:02,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-18 20:29:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:29:02,889 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-11-18 20:29:02,889 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-11-18 20:29:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:29:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:29:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:29:02,890 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-11-18 20:29:02,890 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-11-18 20:29:02,971 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:29:02,973 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:29:03,110 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:29:03,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:29:03,116 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:29:03,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:29:03 BoogieIcfgContainer [2022-11-18 20:29:03,118 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:29:03,119 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-18 20:29:03,119 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-18 20:29:03,139 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-18 20:29:03,140 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:29:03,140 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 08:29:02" (1/3) ... [2022-11-18 20:29:03,141 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4af411d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:29:03, skipping insertion in model container [2022-11-18 20:29:03,141 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:29:03,141 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:29:02" (2/3) ... [2022-11-18 20:29:03,142 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4af411d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 08:29:03, skipping insertion in model container [2022-11-18 20:29:03,142 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-18 20:29:03,142 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:29:03" (3/3) ... [2022-11-18 20:29:03,143 INFO L332 chiAutomizerObserver]: Analyzing ICFG afterrec_2calls-1.c [2022-11-18 20:29:03,211 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-18 20:29:03,211 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-18 20:29:03,211 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-18 20:29:03,211 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-18 20:29:03,211 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-18 20:29:03,212 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-18 20:29:03,212 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-18 20:29:03,212 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-18 20:29:03,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:29:03,236 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 20:29:03,236 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:29:03,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:29:03,243 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 20:29:03,243 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:29:03,243 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-18 20:29:03,244 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-18 20:29:03,246 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2022-11-18 20:29:03,246 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-18 20:29:03,246 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-18 20:29:03,247 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-11-18 20:29:03,247 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:29:03,254 INFO L748 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1; 15#L23true call f(4);< 12#fENTRYtrue [2022-11-18 20:29:03,255 INFO L750 eck$LassoCheckResult]: Loop: 12#fENTRYtrue ~n := #in~n; 5#L9true assume !(~n < 3);#t~post6 := ~n;~n := #t~post6 - 1;havoc #t~post6; 8#L11true call f2(~n);< 6#f2ENTRYtrue ~n := #in~n; 14#L16true assume !(~n < 3);#t~post7 := ~n;~n := #t~post7 - 1;havoc #t~post7; 16#L18true call f(~n);< 12#fENTRYtrue [2022-11-18 20:29:03,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:03,261 INFO L85 PathProgramCache]: Analyzing trace with hash 38808, now seen corresponding path program 1 times [2022-11-18 20:29:03,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:03,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290918368] [2022-11-18 20:29:03,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:03,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:03,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:29:03,395 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:29:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:29:03,437 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:29:03,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:03,440 INFO L85 PathProgramCache]: Analyzing trace with hash 891958565, now seen corresponding path program 1 times [2022-11-18 20:29:03,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:03,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114904642] [2022-11-18 20:29:03,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:03,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:29:03,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:29:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:29:03,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:29:03,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:03,485 INFO L85 PathProgramCache]: Analyzing trace with hash 904560508, now seen corresponding path program 1 times [2022-11-18 20:29:03,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:03,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356770885] [2022-11-18 20:29:03,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:03,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:03,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:29:03,498 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:29:03,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:29:03,511 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:29:03,702 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:29:03,703 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:29:03,703 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:29:03,703 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:29:03,703 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-11-18 20:29:03,704 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:29:03,704 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:29:03,704 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:29:03,704 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec_2calls-1.c_Iteration1_Loop [2022-11-18 20:29:03,705 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:29:03,705 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:29:03,721 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:29:03,737 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:29:03,740 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:29:03,744 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:29:03,781 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:29:03,782 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-11-18 20:29:03,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:29:03,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:29:03,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:29:03,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-11-18 20:29:03,794 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-11-18 20:29:03,794 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:29:03,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:29:03,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:29:03,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:29:03,842 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:29:03,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-11-18 20:29:03,851 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-11-18 20:29:03,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-11-18 20:29:03,917 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-11-18 20:29:03,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:29:03,926 INFO L210 LassoAnalysis]: Preferences: [2022-11-18 20:29:03,926 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-11-18 20:29:03,926 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-11-18 20:29:03,926 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-11-18 20:29:03,927 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-11-18 20:29:03,927 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:29:03,927 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-11-18 20:29:03,927 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-11-18 20:29:03,927 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec_2calls-1.c_Iteration1_Loop [2022-11-18 20:29:03,927 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-11-18 20:29:03,927 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-11-18 20:29:03,929 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:29:03,941 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:29:03,960 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:29:03,963 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-11-18 20:29:04,004 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-11-18 20:29:04,009 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-11-18 20:29:04,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:29:04,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:29:04,012 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:29:04,023 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-11-18 20:29:04,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-11-18 20:29:04,035 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-11-18 20:29:04,035 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-11-18 20:29:04,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-11-18 20:29:04,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-11-18 20:29:04,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-11-18 20:29:04,041 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-11-18 20:29:04,041 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-11-18 20:29:04,051 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-11-18 20:29:04,057 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2022-11-18 20:29:04,057 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2022-11-18 20:29:04,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-18 20:29:04,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:29:04,063 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-18 20:29:04,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-11-18 20:29:04,073 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-11-18 20:29:04,073 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-11-18 20:29:04,073 INFO L513 LassoAnalysis]: Proved termination. [2022-11-18 20:29:04,074 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~n) = 1*f_#in~n Supporting invariants [] [2022-11-18 20:29:04,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-11-18 20:29:04,086 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-11-18 20:29:04,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:04,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:29:04,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:29:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:04,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-18 20:29:04,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:29:04,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:29:04,355 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 6 loop predicates [2022-11-18 20:29:04,357 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:29:04,679 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 18 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 56 states and 62 transitions. Complement of second has 26 states. [2022-11-18 20:29:04,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2022-11-18 20:29:04,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:29:04,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 24 transitions. [2022-11-18 20:29:04,697 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 3 letters. Loop has 6 letters. [2022-11-18 20:29:04,699 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:29:04,699 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 9 letters. Loop has 6 letters. [2022-11-18 20:29:04,700 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:29:04,700 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 24 transitions. Stem has 3 letters. Loop has 12 letters. [2022-11-18 20:29:04,701 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-11-18 20:29:04,702 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 56 states and 62 transitions. [2022-11-18 20:29:04,714 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:29:04,717 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 56 states to 0 states and 0 transitions. [2022-11-18 20:29:04,718 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-11-18 20:29:04,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-11-18 20:29:04,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-11-18 20:29:04,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-18 20:29:04,719 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:29:04,719 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:29:04,719 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:29:04,720 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-18 20:29:04,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:29:04,720 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-11-18 20:29:04,720 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-11-18 20:29:04,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 08:29:04 BoogieIcfgContainer [2022-11-18 20:29:04,731 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-18 20:29:04,732 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:29:04,732 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:29:04,732 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:29:04,732 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:29:03" (3/4) ... [2022-11-18 20:29:04,740 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:29:04,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:29:04,741 INFO L158 Benchmark]: Toolchain (without parser) took 2324.45ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 63.6MB in the beginning and 59.5MB in the end (delta: 4.1MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-11-18 20:29:04,742 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory was 68.7MB in the beginning and 68.7MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:29:04,743 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.68ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 74.5MB in the end (delta: -11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:29:04,744 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.54ms. Allocated memory is still 98.6MB. Free memory was 74.5MB in the beginning and 73.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:29:04,749 INFO L158 Benchmark]: Boogie Preprocessor took 32.29ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 72.4MB in the end (delta: 779.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:29:04,749 INFO L158 Benchmark]: RCFGBuilder took 315.31ms. Allocated memory is still 98.6MB. Free memory was 72.4MB in the beginning and 63.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:29:04,751 INFO L158 Benchmark]: BuchiAutomizer took 1612.21ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 63.1MB in the beginning and 59.5MB in the end (delta: 3.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-18 20:29:04,751 INFO L158 Benchmark]: Witness Printer took 8.17ms. Allocated memory is still 119.5MB. Free memory is still 59.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:29:04,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 98.6MB. Free memory was 68.7MB in the beginning and 68.7MB in the end (delta: 25.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.68ms. Allocated memory is still 98.6MB. Free memory was 63.4MB in the beginning and 74.5MB in the end (delta: -11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.54ms. Allocated memory is still 98.6MB. Free memory was 74.5MB in the beginning and 73.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.29ms. Allocated memory is still 98.6MB. Free memory was 73.2MB in the beginning and 72.4MB in the end (delta: 779.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 315.31ms. Allocated memory is still 98.6MB. Free memory was 72.4MB in the beginning and 63.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1612.21ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 63.1MB in the beginning and 59.5MB in the end (delta: 3.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 8.17ms. Allocated memory is still 119.5MB. Free memory is still 59.5MB. 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 Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 9 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 7 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital11 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq154 hnf94 smp100 dnf100 smp100 tf112 neg94 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 63ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2022-11-18 20:29:04,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:29:04,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_77fabe45-f993-41bc-af11-f40209dd88b7/bin/uautomizer-TMbwUNV5ro/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 Result: TRUE