./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/afterrec-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0e0057cc 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_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/afterrec-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --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 1c92d0a3779cdad7e145b29b6ae35aeb1a90bc327e2327b92a2158da4de5b6ea --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:00:16,395 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:00:16,467 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-29 03:00:16,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:00:16,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:00:16,497 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:00:16,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:00:16,499 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:00:16,499 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:00:16,500 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:00:16,501 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:00:16,501 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:00:16,502 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:00:16,502 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-29 03:00:16,503 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-29 03:00:16,503 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-29 03:00:16,504 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-29 03:00:16,504 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-29 03:00:16,505 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-29 03:00:16,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:00:16,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-29 03:00:16,507 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 03:00:16,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:00:16,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 03:00:16,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:00:16,508 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-29 03:00:16,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-29 03:00:16,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-29 03:00:16,509 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 03:00:16,510 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 03:00:16,510 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:00:16,511 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-29 03:00:16,511 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:00:16,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:00:16,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:00:16,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:00:16,512 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:00:16,513 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-29 03:00:16,513 INFO L153 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_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c92d0a3779cdad7e145b29b6ae35aeb1a90bc327e2327b92a2158da4de5b6ea [2023-11-29 03:00:16,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:00:16,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:00:16,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:00:16,771 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:00:16,771 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:00:16,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/recursive-simple/afterrec-2.c [2023-11-29 03:00:19,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:00:19,630 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:00:19,630 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/sv-benchmarks/c/recursive-simple/afterrec-2.c [2023-11-29 03:00:19,636 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/data/e724b8086/7b8fddb3b29a4425bf0f3501ae1d1606/FLAG20fdf867b [2023-11-29 03:00:19,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/data/e724b8086/7b8fddb3b29a4425bf0f3501ae1d1606 [2023-11-29 03:00:19,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:00:19,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:00:19,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:00:19,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:00:19,655 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:00:19,656 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@384aeb88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19, skipping insertion in model container [2023-11-29 03:00:19,657 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,673 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:00:19,806 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:00:19,816 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:00:19,825 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:00:19,836 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:00:19,837 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19 WrapperNode [2023-11-29 03:00:19,837 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:00:19,838 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:00:19,838 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:00:19,838 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:00:19,844 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,861 INFO L138 Inliner]: procedures = 12, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2023-11-29 03:00:19,861 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:00:19,862 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:00:19,862 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:00:19,862 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:00:19,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,870 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,878 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-29 03:00:19,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,879 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,880 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,881 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,882 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,883 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:00:19,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:00:19,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:00:19,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:00:19,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (1/1) ... [2023-11-29 03:00:19,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:00:19,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:00:19,913 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:00:19,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-29 03:00:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:00:19,952 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-29 03:00:19,952 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-29 03:00:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:00:19,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:00:19,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:00:20,004 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:00:20,006 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:00:20,071 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:00:20,079 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:00:20,079 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-29 03:00:20,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:00:20 BoogieIcfgContainer [2023-11-29 03:00:20,081 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:00:20,082 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-29 03:00:20,082 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-29 03:00:20,085 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-29 03:00:20,086 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 03:00:20,086 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.11 03:00:19" (1/3) ... [2023-11-29 03:00:20,087 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b7c7c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 03:00:20, skipping insertion in model container [2023-11-29 03:00:20,087 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 03:00:20,088 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:00:19" (2/3) ... [2023-11-29 03:00:20,088 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b7c7c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.11 03:00:20, skipping insertion in model container [2023-11-29 03:00:20,088 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-29 03:00:20,088 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:00:20" (3/3) ... [2023-11-29 03:00:20,090 INFO L332 chiAutomizerObserver]: Analyzing ICFG afterrec-2.c [2023-11-29 03:00:20,145 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-29 03:00:20,145 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-29 03:00:20,145 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-29 03:00:20,145 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-29 03:00:20,146 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-29 03:00:20,146 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-29 03:00:20,146 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-29 03:00:20,146 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-29 03:00:20,150 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2023-11-29 03:00:20,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 03:00:20,173 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 03:00:20,173 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 03:00:20,178 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 03:00:20,178 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 03:00:20,178 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-29 03:00:20,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2023-11-29 03:00:20,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2023-11-29 03:00:20,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-29 03:00:20,180 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-29 03:00:20,180 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2023-11-29 03:00:20,181 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2023-11-29 03:00:20,187 INFO L748 eck$LassoCheckResult]: Stem: 12#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1; 8#L13true call f(2);< 9#$Ultimate##0true [2023-11-29 03:00:20,188 INFO L750 eck$LassoCheckResult]: Loop: 9#$Ultimate##0true ~n#1 := #in~n#1; 11#L6true assume !(~n#1 < 3);#t~post4#1 := ~n#1;~n#1 := #t~post4#1 - 1;havoc #t~post4#1; 13#L8true call f(~n#1);< 9#$Ultimate##0true [2023-11-29 03:00:20,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:00:20,193 INFO L85 PathProgramCache]: Analyzing trace with hash 40785, now seen corresponding path program 1 times [2023-11-29 03:00:20,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:00:20,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75613448] [2023-11-29 03:00:20,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:00:20,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:00:20,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:00:20,271 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:00:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:00:20,293 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:00:20,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:00:20,296 INFO L85 PathProgramCache]: Analyzing trace with hash 29933, now seen corresponding path program 1 times [2023-11-29 03:00:20,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:00:20,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66931929] [2023-11-29 03:00:20,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:00:20,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:00:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:00:20,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:00:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:00:20,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:00:20,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:00:20,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1215026077, now seen corresponding path program 1 times [2023-11-29 03:00:20,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:00:20,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473094528] [2023-11-29 03:00:20,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:00:20,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:00:20,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:00:20,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:00:20,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:00:20,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473094528] [2023-11-29 03:00:20,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473094528] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:00:20,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:00:20,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:00:20,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162704147] [2023-11-29 03:00:20,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:00:20,511 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 03:00:20,511 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 03:00:20,511 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 03:00:20,511 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 03:00:20,512 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-29 03:00:20,512 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:00:20,512 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 03:00:20,512 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 03:00:20,512 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec-2.c_Iteration1_Loop [2023-11-29 03:00:20,512 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 03:00:20,512 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 03:00:20,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:00:20,541 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:00:20,544 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:00:20,577 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 03:00:20,578 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-29 03:00:20,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:00:20,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:00:20,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:00:20,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-29 03:00:20,592 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-29 03:00:20,593 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 03:00:20,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:00:20,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:00:20,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:00:20,617 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:00:20,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-29 03:00:20,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-29 03:00:20,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-29 03:00:20,702 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-29 03:00:20,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2023-11-29 03:00:20,706 INFO L210 LassoAnalysis]: Preferences: [2023-11-29 03:00:20,706 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-29 03:00:20,707 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-29 03:00:20,707 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-29 03:00:20,707 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-29 03:00:20,707 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:00:20,707 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-29 03:00:20,707 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-29 03:00:20,707 INFO L133 ssoRankerPreferences]: Filename of dumped script: afterrec-2.c_Iteration1_Loop [2023-11-29 03:00:20,707 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-29 03:00:20,707 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-29 03:00:20,708 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:00:20,715 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:00:20,718 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-29 03:00:20,741 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-29 03:00:20,745 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-29 03:00:20,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:00:20,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:00:20,747 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:00:20,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-29 03:00:20,750 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 [2023-11-29 03:00:20,761 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-29 03:00:20,761 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-29 03:00:20,761 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-29 03:00:20,761 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-29 03:00:20,761 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-29 03:00:20,763 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-29 03:00:20,764 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-29 03:00:20,780 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-29 03:00:20,787 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-29 03:00:20,787 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2023-11-29 03:00:20,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-29 03:00:20,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:00:20,810 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-29 03:00:20,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-29 03:00:20,812 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-29 03:00:20,812 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-29 03:00:20,813 INFO L513 LassoAnalysis]: Proved termination. [2023-11-29 03:00:20,813 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(f_#in~n#1) = 1*f_#in~n#1 Supporting invariants [] [2023-11-29 03:00:20,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2023-11-29 03:00:20,819 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-29 03:00:20,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:00:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:00:20,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 03:00:20,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:00:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:00:20,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 03:00:20,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:00:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:00:20,954 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 [2023-11-29 03:00:20,956 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2023-11-29 03:00:21,048 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 39 states and 41 transitions. Complement of second has 19 states. [2023-11-29 03:00:21,051 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 [2023-11-29 03:00:21,056 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) [2023-11-29 03:00:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 17 transitions. [2023-11-29 03:00:21,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 3 letters. Loop has 3 letters. [2023-11-29 03:00:21,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 03:00:21,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 6 letters. Loop has 3 letters. [2023-11-29 03:00:21,060 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 03:00:21,060 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 17 transitions. Stem has 3 letters. Loop has 6 letters. [2023-11-29 03:00:21,061 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-29 03:00:21,062 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 39 states and 41 transitions. [2023-11-29 03:00:21,065 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 03:00:21,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 39 states to 0 states and 0 transitions. [2023-11-29 03:00:21,069 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 03:00:21,069 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 03:00:21,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 03:00:21,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:00:21,070 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:00:21,070 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:00:21,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:00:21,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:00:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:00:21,074 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. 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), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 03:00:21,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:00:21,076 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2023-11-29 03:00:21,077 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2023-11-29 03:00:21,077 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 03:00:21,077 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 03:00:21,077 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-29 03:00:21,077 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-29 03:00:21,077 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-29 03:00:21,077 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-29 03:00:21,077 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:00:21,078 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:00:21,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 03:00:21,079 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:00:21,079 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-29 03:00:21,079 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-29 03:00:21,079 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-29 03:00:21,079 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-29 03:00:21,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.11 03:00:21 BoogieIcfgContainer [2023-11-29 03:00:21,086 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-29 03:00:21,087 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:00:21,087 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:00:21,087 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:00:21,088 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:00:20" (3/4) ... [2023-11-29 03:00:21,089 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 03:00:21,091 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:00:21,091 INFO L158 Benchmark]: Toolchain (without parser) took 1441.40ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 60.7MB in the end (delta: 58.4MB). Peak memory consumption was 56.9MB. Max. memory is 16.1GB. [2023-11-29 03:00:21,092 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 119.5MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:00:21,092 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.12ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 123.6MB in the end (delta: -4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 03:00:21,093 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.75ms. Allocated memory is still 157.3MB. Free memory was 123.6MB in the beginning and 122.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:00:21,094 INFO L158 Benchmark]: Boogie Preprocessor took 21.92ms. Allocated memory is still 157.3MB. Free memory was 122.0MB in the beginning and 120.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:00:21,094 INFO L158 Benchmark]: RCFGBuilder took 196.29ms. Allocated memory is still 157.3MB. Free memory was 120.7MB in the beginning and 111.7MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 03:00:21,095 INFO L158 Benchmark]: BuchiAutomizer took 1004.77ms. Allocated memory is still 157.3MB. Free memory was 111.7MB in the beginning and 61.4MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-29 03:00:21,095 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 157.3MB. Free memory was 61.4MB in the beginning and 60.7MB in the end (delta: 665.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:00:21,098 INFO L338 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 119.5MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.12ms. Allocated memory is still 157.3MB. Free memory was 119.1MB in the beginning and 123.6MB in the end (delta: -4.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.75ms. Allocated memory is still 157.3MB. Free memory was 123.6MB in the beginning and 122.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.92ms. Allocated memory is still 157.3MB. Free memory was 122.0MB in the beginning and 120.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 196.29ms. Allocated memory is still 157.3MB. Free memory was 120.7MB in the beginning and 111.7MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1004.77ms. Allocated memory is still 157.3MB. Free memory was 111.7MB in the beginning and 61.4MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 157.3MB. Free memory was 61.4MB in the beginning and 60.7MB in the end (delta: 665.6kB). 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 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 6 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. 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, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 5 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 67ms 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! [2023-11-29 03:00:21,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2023-11-29 03:00:21,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9003c532-9552-411c-8fef-bf3139acf4d4/bin/uautomizer-verify-BQ2R08f2Ya/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