./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 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_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8 --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 bd3dbeb1201d252c8f1e3c61a135802ff8f8ccfcc09353f09b9750e3ee951591 --- 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-2329fc7 [2022-12-13 15:43:47,964 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:43:47,966 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:43:47,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:43:47,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:43:47,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:43:47,996 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:43:47,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:43:48,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:43:48,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:43:48,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:43:48,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:43:48,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:43:48,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:43:48,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:43:48,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:43:48,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:43:48,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:43:48,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:43:48,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:43:48,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:43:48,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:43:48,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:43:48,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:43:48,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:43:48,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:43:48,042 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:43:48,043 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:43:48,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:43:48,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:43:48,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:43:48,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:43:48,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:43:48,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:43:48,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:43:48,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:43:48,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:43:48,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:43:48,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:43:48,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:43:48,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:43:48,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 15:43:48,078 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:43:48,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:43:48,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:43:48,079 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:43:48,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:43:48,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:43:48,080 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:43:48,081 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 15:43:48,081 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 15:43:48,081 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 15:43:48,081 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 15:43:48,081 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 15:43:48,081 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 15:43:48,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:43:48,082 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 15:43:48,082 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:43:48,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:43:48,082 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 15:43:48,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:43:48,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 15:43:48,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 15:43:48,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 15:43:48,083 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 15:43:48,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:43:48,083 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 15:43:48,083 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:43:48,083 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 15:43:48,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:43:48,084 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:43:48,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:43:48,084 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:43:48,085 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 15:43:48,085 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_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd3dbeb1201d252c8f1e3c61a135802ff8f8ccfcc09353f09b9750e3ee951591 [2022-12-13 15:43:48,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:43:48,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:43:48,290 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:43:48,291 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:43:48,291 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:43:48,292 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/recursive-simple/afterrec-1.c [2022-12-13 15:43:50,860 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:43:51,030 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:43:51,030 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/sv-benchmarks/c/recursive-simple/afterrec-1.c [2022-12-13 15:43:51,035 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/data/758997db2/3077a7f50def4a70964f963bb05aa5c5/FLAGa0b258c19 [2022-12-13 15:43:51,048 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/data/758997db2/3077a7f50def4a70964f963bb05aa5c5 [2022-12-13 15:43:51,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:43:51,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:43:51,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:43:51,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:43:51,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:43:51,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cd8c0a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51, skipping insertion in model container [2022-12-13 15:43:51,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:43:51,076 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:43:51,203 WARN L237 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_3031e71c-267c-40e2-ab20-ed0a0df393ef/sv-benchmarks/c/recursive-simple/afterrec-1.c[318,331] [2022-12-13 15:43:51,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:43:51,216 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:43:51,228 WARN L237 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_3031e71c-267c-40e2-ab20-ed0a0df393ef/sv-benchmarks/c/recursive-simple/afterrec-1.c[318,331] [2022-12-13 15:43:51,229 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:43:51,242 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:43:51,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51 WrapperNode [2022-12-13 15:43:51,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:43:51,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:43:51,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:43:51,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:43:51,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,271 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 11 [2022-12-13 15:43:51,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:43:51,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:43:51,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:43:51,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:43:51,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,284 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,285 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:43:51,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:43:51,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:43:51,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:43:51,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (1/1) ... [2022-12-13 15:43:51,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:43:51,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:43:51,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:43:51,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 15:43:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:43:51,351 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-12-13 15:43:51,352 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-12-13 15:43:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:43:51,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:43:51,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:43:51,404 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:43:51,406 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:43:51,470 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:43:51,475 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:43:51,475 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:43:51,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:43:51 BoogieIcfgContainer [2022-12-13 15:43:51,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:43:51,477 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 15:43:51,477 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 15:43:51,480 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 15:43:51,481 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 15:43:51,481 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 03:43:51" (1/3) ... [2022-12-13 15:43:51,482 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c720cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 03:43:51, skipping insertion in model container [2022-12-13 15:43:51,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 15:43:51,482 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:43:51" (2/3) ... [2022-12-13 15:43:51,482 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c720cd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 03:43:51, skipping insertion in model container [2022-12-13 15:43:51,482 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 15:43:51,482 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:43:51" (3/3) ... [2022-12-13 15:43:51,484 INFO L332 chiAutomizerObserver]: Analyzing ICFG afterrec-1.c [2022-12-13 15:43:51,537 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 15:43:51,537 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 15:43:51,537 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 15:43:51,537 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 15:43:51,537 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 15:43:51,537 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 15:43:51,538 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 15:43:51,538 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 15:43:51,542 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:43:51,563 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 15:43:51,564 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:43:51,564 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:43:51,570 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 15:43:51,570 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 15:43:51,570 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 15:43:51,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:43:51,572 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-12-13 15:43:51,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 15:43:51,573 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 15:43:51,573 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-12-13 15:43:51,573 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-12-13 15:43:51,581 INFO L748 eck$LassoCheckResult]: Stem: 9#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3); 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1; 6#L13true call f(4);< 7#$Ultimate##0true [2022-12-13 15:43:51,581 INFO L750 eck$LassoCheckResult]: Loop: 7#$Ultimate##0true ~n := #in~n; 8#L6true assume !(~n < 3);#t~post4 := ~n;~n := #t~post4 - 1;havoc #t~post4; 12#L8true call f(~n);< 7#$Ultimate##0true [2022-12-13 15:43:51,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:43:51,587 INFO L85 PathProgramCache]: Analyzing trace with hash 38799, now seen corresponding path program 1 times [2022-12-13 15:43:51,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:43:51,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666783248] [2022-12-13 15:43:51,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:43:51,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:43:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:43:51,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:43:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:43:51,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:43:51,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:43:51,694 INFO L85 PathProgramCache]: Analyzing trace with hash 29931, now seen corresponding path program 1 times [2022-12-13 15:43:51,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:43:51,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799093122] [2022-12-13 15:43:51,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:43:51,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:43:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:43:51,703 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:43:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:43:51,707 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:43:51,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:43:51,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1155861149, now seen corresponding path program 1 times [2022-12-13 15:43:51,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:43:51,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648595708] [2022-12-13 15:43:51,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:43:51,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:43:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:43:51,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:43:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:43:51,726 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:43:51,825 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 15:43:51,826 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 15:43:51,826 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 15:43:51,826 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 15:43:51,826 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-12-13 15:43:51,826 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:43:51,826 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 15:43:51,826 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 15:43:51,827 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec-1.c_Iteration1_Loop [2022-12-13 15:43:51,827 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 15:43:51,827 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 15:43:51,838 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:43:51,847 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:43:51,855 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:43:51,883 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 15:43:51,884 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-12-13 15:43:51,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:43:51,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:43:51,886 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:43:51,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-12-13 15:43:51,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:43:51,889 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:43:51,906 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2022-12-13 15:43:51,906 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {f_#t~post4=0} Honda state: {f_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2022-12-13 15:43:51,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:43:51,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:43:51,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:43:51,911 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:43:51,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-12-13 15:43:51,913 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-12-13 15:43:51,913 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:43:51,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2022-12-13 15:43:51,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:43:51,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:43:51,929 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:43:51,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-12-13 15:43:51,932 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-12-13 15:43:51,932 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-12-13 15:43:51,994 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2022-12-13 15:43:51,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2022-12-13 15:43:51,998 INFO L210 LassoAnalysis]: Preferences: [2022-12-13 15:43:51,999 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-12-13 15:43:51,999 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-12-13 15:43:51,999 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-12-13 15:43:51,999 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-12-13 15:43:51,999 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:43:51,999 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-12-13 15:43:51,999 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-12-13 15:43:51,999 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec-1.c_Iteration1_Loop [2022-12-13 15:43:51,999 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-12-13 15:43:51,999 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-12-13 15:43:52,001 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:43:52,003 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:43:52,009 INFO L117 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-12-13 15:43:52,027 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-12-13 15:43:52,030 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-12-13 15:43:52,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:43:52,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:43:52,032 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:43:52,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2022-12-13 15:43:52,035 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 [2022-12-13 15:43:52,047 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:43:52,047 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:43:52,048 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:43:52,048 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:43:52,048 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:43:52,050 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:43:52,050 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:43:52,052 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-12-13 15:43:52,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2022-12-13 15:43:52,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:43:52,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:43:52,057 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:43:52,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2022-12-13 15:43:52,060 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 [2022-12-13 15:43:52,070 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-12-13 15:43:52,070 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-12-13 15:43:52,070 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-12-13 15:43:52,070 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-12-13 15:43:52,070 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-12-13 15:43:52,071 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-12-13 15:43:52,071 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-12-13 15:43:52,074 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-12-13 15:43:52,079 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2022-12-13 15:43:52,079 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2022-12-13 15:43:52,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 15:43:52,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:43:52,108 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 15:43:52,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2022-12-13 15:43:52,110 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-12-13 15:43:52,111 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2022-12-13 15:43:52,111 INFO L513 LassoAnalysis]: Proved termination. [2022-12-13 15:43:52,111 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~n) = 1*f_#in~n Supporting invariants [] [2022-12-13 15:43:52,114 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2022-12-13 15:43:52,116 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2022-12-13 15:43:52,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:43:52,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:43:52,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 15:43:52,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:43:52,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:43:52,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 15:43:52,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:43:52,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:43:52,215 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2022-12-13 15:43:52,216 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:43:52,287 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2). Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 37 states and 39 transitions. Complement of second has 19 states. [2022-12-13 15:43:52,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2022-12-13 15:43:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 15:43:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 16 transitions. [2022-12-13 15:43:52,294 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 3 letters. Loop has 3 letters. [2022-12-13 15:43:52,294 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:43:52,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 6 letters. Loop has 3 letters. [2022-12-13 15:43:52,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:43:52,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 16 transitions. Stem has 3 letters. Loop has 6 letters. [2022-12-13 15:43:52,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-12-13 15:43:52,295 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 39 transitions. [2022-12-13 15:43:52,297 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 15:43:52,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 0 states and 0 transitions. [2022-12-13 15:43:52,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-12-13 15:43:52,300 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-12-13 15:43:52,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-12-13 15:43:52,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 15:43:52,301 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:43:52,301 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:43:52,301 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 15:43:52,301 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 15:43:52,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-12-13 15:43:52,301 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-12-13 15:43:52,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-12-13 15:43:52,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 03:43:52 BoogieIcfgContainer [2022-12-13 15:43:52,308 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 15:43:52,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:43:52,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:43:52,308 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:43:52,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:43:51" (3/4) ... [2022-12-13 15:43:52,311 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:43:52,311 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:43:52,312 INFO L158 Benchmark]: Toolchain (without parser) took 1259.94ms. Allocated memory is still 172.0MB. Free memory was 143.7MB in the beginning and 111.3MB in the end (delta: 32.4MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2022-12-13 15:43:52,312 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:43:52,312 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.09ms. Allocated memory is still 172.0MB. Free memory was 143.7MB in the beginning and 133.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 15:43:52,313 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.61ms. Allocated memory is still 172.0MB. Free memory was 133.9MB in the beginning and 132.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:43:52,313 INFO L158 Benchmark]: Boogie Preprocessor took 15.15ms. Allocated memory is still 172.0MB. Free memory was 132.7MB in the beginning and 131.9MB in the end (delta: 796.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:43:52,314 INFO L158 Benchmark]: RCFGBuilder took 188.46ms. Allocated memory is still 172.0MB. Free memory was 131.3MB in the beginning and 122.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 15:43:52,314 INFO L158 Benchmark]: BuchiAutomizer took 830.29ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 111.3MB in the end (delta: 11.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-12-13 15:43:52,314 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 172.0MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:43:52,316 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 111.1MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.09ms. Allocated memory is still 172.0MB. Free memory was 143.7MB in the beginning and 133.9MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.61ms. Allocated memory is still 172.0MB. Free memory was 133.9MB in the beginning and 132.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.15ms. Allocated memory is still 172.0MB. Free memory was 132.7MB in the beginning and 131.9MB in the end (delta: 796.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 188.46ms. Allocated memory is still 172.0MB. Free memory was 131.3MB in the beginning and 122.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 830.29ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 111.3MB in the end (delta: 11.6MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 172.0MB. Free memory is still 111.3MB. 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 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. 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, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 5 mSDtfsCounter, 16 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: unsat Degree: 0 Time: 21ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 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! [2022-12-13 15:43:52,327 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2022-12-13 15:43:52,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3031e71c-267c-40e2-ab20-ed0a0df393ef/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE