./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/float-benchs/feedback_diverge.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_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/float-benchs/feedback_diverge.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme --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 a6e296367f1fe3cf145b6868ec70c2d770b2281a31a9d7dcae84843c6ed48125 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:02:18,346 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:02:18,445 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-26 12:02:18,460 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:02:18,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:02:18,504 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:02:18,505 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:02:18,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:02:18,507 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:02:18,512 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:02:18,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:02:18,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:02:18,514 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:02:18,516 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-26 12:02:18,517 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-26 12:02:18,517 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-26 12:02:18,518 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-26 12:02:18,518 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-26 12:02:18,519 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-26 12:02:18,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:02:18,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-26 12:02:18,520 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:02:18,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:02:18,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:02:18,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:02:18,522 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-26 12:02:18,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-26 12:02:18,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-26 12:02:18,523 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:02:18,524 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:02:18,525 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:02:18,526 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-26 12:02:18,526 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:02:18,526 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:02:18,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:02:18,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:02:18,527 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:02:18,528 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-26 12:02:18,528 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_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a6e296367f1fe3cf145b6868ec70c2d770b2281a31a9d7dcae84843c6ed48125 [2023-11-26 12:02:18,857 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:02:18,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:02:18,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:02:18,892 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:02:18,893 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:02:18,895 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/float-benchs/feedback_diverge.c [2023-11-26 12:02:22,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:02:22,487 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:02:22,488 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/sv-benchmarks/c/float-benchs/feedback_diverge.c [2023-11-26 12:02:22,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/data/82b0c0d69/50690624cc1a409fb9dd3c04f250a801/FLAG3730bfa7a [2023-11-26 12:02:22,520 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/data/82b0c0d69/50690624cc1a409fb9dd3c04f250a801 [2023-11-26 12:02:22,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:02:22,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:02:22,532 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:22,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:02:22,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:02:22,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21277c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22, skipping insertion in model container [2023-11-26 12:02:22,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,569 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:02:22,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:22,796 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:02:22,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:02:22,843 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:02:22,843 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22 WrapperNode [2023-11-26 12:02:22,843 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:02:22,845 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:22,845 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:02:22,845 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:02:22,854 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,886 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 48 [2023-11-26 12:02:22,886 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:02:22,887 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:02:22,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:02:22,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:02:22,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,900 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,901 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,914 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]. [2023-11-26 12:02:22,914 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,915 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,922 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:02:22,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:02:22,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:02:22,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:02:22,929 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (1/1) ... [2023-11-26 12:02:22,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:22,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:22,960 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:22,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-26 12:02:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:02:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:02:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:02:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:02:23,067 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:02:23,069 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:02:23,223 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:02:23,231 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:02:23,232 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 12:02:23,233 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:23 BoogieIcfgContainer [2023-11-26 12:02:23,234 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:02:23,235 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-26 12:02:23,235 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-26 12:02:23,239 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-26 12:02:23,240 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:02:23,241 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.11 12:02:22" (1/3) ... [2023-11-26 12:02:23,242 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5500b1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:02:23, skipping insertion in model container [2023-11-26 12:02:23,242 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:02:23,242 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:02:22" (2/3) ... [2023-11-26 12:02:23,243 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5500b1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.11 12:02:23, skipping insertion in model container [2023-11-26 12:02:23,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-26 12:02:23,243 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:23" (3/3) ... [2023-11-26 12:02:23,244 INFO L332 chiAutomizerObserver]: Analyzing ICFG feedback_diverge.c [2023-11-26 12:02:23,303 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-26 12:02:23,304 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-26 12:02:23,304 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-26 12:02:23,305 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-26 12:02:23,305 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-26 12:02:23,306 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-26 12:02:23,306 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-26 12:02:23,306 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-26 12:02:23,311 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:23,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-26 12:02:23,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:02:23,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:02:23,339 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:02:23,340 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-26 12:02:23,340 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-26 12:02:23,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:23,344 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 7 [2023-11-26 12:02:23,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-26 12:02:23,344 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-26 12:02:23,345 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-26 12:02:23,345 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2023-11-26 12:02:23,353 INFO L748 eck$LassoCheckResult]: Stem: 13#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(19, 2);call #Ultimate.allocInit(12, 3); 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet5#1, main_#t~nondet6#1, main_#t~post4#1, main_~A~0#1, main_~B~0#1, main_~X~0#1, main_~i~0#1;havoc main_~A~0#1;havoc main_~B~0#1;havoc main_~X~0#1;havoc main_~i~0#1;main_~A~0#1 := 0.0;main_~B~0#1 := 0.0;main_~i~0#1 := 0; 14#L26-3true [2023-11-26 12:02:23,354 INFO L750 eck$LassoCheckResult]: Loop: 14#L26-3true assume !!(main_~i~0#1 < 3600000);havoc main_#t~nondet5#1; 12#L28true assume !(0 != main_#t~nondet5#1);havoc main_#t~nondet5#1;main_~X~0#1 := main_~B~0#1; 4#L28-2true main_~B~0#1 := ~someBinaryArithmeticFLOAToperation(main_~B~0#1, ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(2.0, main_~B~0#1), main_~A~0#1), main_~X~0#1), 0.005));main_~A~0#1 := main_~X~0#1;assume { :begin_inline_wait_for_clock } true; 2#L16true assume { :end_inline_wait_for_clock } true; 11#L26-2true main_#t~post4#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post4#1;havoc main_#t~post4#1; 14#L26-3true [2023-11-26 12:02:23,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:23,365 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-26 12:02:23,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:23,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417590367] [2023-11-26 12:02:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:23,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:23,499 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:23,543 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:23,548 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:23,548 INFO L85 PathProgramCache]: Analyzing trace with hash 38543661, now seen corresponding path program 1 times [2023-11-26 12:02:23,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:23,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524549927] [2023-11-26 12:02:23,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:23,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:23,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:23,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:23,577 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:23,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:23,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1809983147, now seen corresponding path program 1 times [2023-11-26 12:02:23,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:02:23,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404431870] [2023-11-26 12:02:23,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:02:23,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:02:23,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:23,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 12:02:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 12:02:23,624 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 12:02:23,762 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:02:23,763 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:02:23,763 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:02:23,763 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:02:23,763 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-26 12:02:23,764 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:23,764 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:02:23,764 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:02:23,764 INFO L133 ssoRankerPreferences]: Filename of dumped script: feedback_diverge.c_Iteration1_Loop [2023-11-26 12:02:23,764 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:02:23,765 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:02:23,788 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:02:23,798 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:02:23,808 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:02:23,812 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:02:23,875 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:02:23,875 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-26 12:02:23,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:23,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:23,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:23,893 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:02:23,893 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:02:23,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-26 12:02:23,921 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2023-11-26 12:02:23,921 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet5#1=0} Honda state: {ULTIMATE.start_main_#t~nondet5#1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2023-11-26 12:02:23,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2023-11-26 12:02:23,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:23,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:23,927 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:23,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-26 12:02:23,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-26 12:02:23,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:02:23,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:23,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:23,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:23,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:23,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-26 12:02:23,968 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-26 12:02:23,969 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-26 12:02:24,005 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-26 12:02:24,016 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:24,016 INFO L210 LassoAnalysis]: Preferences: [2023-11-26 12:02:24,016 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-26 12:02:24,017 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-26 12:02:24,017 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-26 12:02:24,017 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-26 12:02:24,017 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:24,017 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-26 12:02:24,017 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-26 12:02:24,017 INFO L133 ssoRankerPreferences]: Filename of dumped script: feedback_diverge.c_Iteration1_Loop [2023-11-26 12:02:24,018 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-26 12:02:24,018 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-26 12:02:24,020 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:02:24,026 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:02:24,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:02:24,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-26 12:02:24,093 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-26 12:02:24,098 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-26 12:02:24,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:24,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:24,112 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:24,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-26 12:02:24,115 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 [2023-11-26 12:02:24,126 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:02:24,126 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:02:24,127 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:02:24,127 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:02:24,127 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:02:24,129 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:02:24,129 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:02:24,141 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:02:24,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:24,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:24,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:24,150 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:24,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2023-11-26 12:02:24,154 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 [2023-11-26 12:02:24,166 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:02:24,166 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:02:24,166 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:02:24,166 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:02:24,167 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:02:24,169 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:02:24,169 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:02:24,192 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2023-11-26 12:02:24,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:24,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:24,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:24,202 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:24,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2023-11-26 12:02:24,205 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 [2023-11-26 12:02:24,216 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-26 12:02:24,216 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-26 12:02:24,216 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-26 12:02:24,216 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-26 12:02:24,216 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-26 12:02:24,218 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-26 12:02:24,218 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-26 12:02:24,252 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-26 12:02:24,256 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-26 12:02:24,256 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-26 12:02:24,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-26 12:02:24,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:02:24,307 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-26 12:02:24,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2023-11-26 12:02:24,339 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-26 12:02:24,340 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-26 12:02:24,340 INFO L513 LassoAnalysis]: Proved termination. [2023-11-26 12:02:24,340 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -2*ULTIMATE.start_main_~i~0#1 + 7199999 Supporting invariants [] [2023-11-26 12:02:24,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:02:24,358 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-26 12:02:24,390 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:02:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:24,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:02:24,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:02:24,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 12 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-26 12:02:24,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:02:24,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:02:24,527 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2023-11-26 12:02:24,529 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:24,616 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0). Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 43 states and 56 transitions. Complement of second has 8 states. [2023-11-26 12:02:24,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2023-11-26 12:02:24,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-26 12:02:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2023-11-26 12:02:24,628 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 2 letters. Loop has 5 letters. [2023-11-26 12:02:24,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:02:24,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 7 letters. Loop has 5 letters. [2023-11-26 12:02:24,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:02:24,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 37 transitions. Stem has 2 letters. Loop has 10 letters. [2023-11-26 12:02:24,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-26 12:02:24,634 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 56 transitions. [2023-11-26 12:02:24,641 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 12:02:24,645 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 0 states and 0 transitions. [2023-11-26 12:02:24,646 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-26 12:02:24,646 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-26 12:02:24,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-26 12:02:24,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-26 12:02:24,647 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:02:24,648 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:02:24,648 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:02:24,649 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-26 12:02:24,649 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:02:24,649 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-26 12:02:24,649 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-26 12:02:24,657 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.11 12:02:24 BoogieIcfgContainer [2023-11-26 12:02:24,657 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-26 12:02:24,659 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:02:24,659 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:02:24,660 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:02:24,660 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:02:23" (3/4) ... [2023-11-26 12:02:24,662 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 12:02:24,664 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:02:24,666 INFO L158 Benchmark]: Toolchain (without parser) took 2136.17ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 124.5MB in the beginning and 161.7MB in the end (delta: -37.2MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2023-11-26 12:02:24,667 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 159.4MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:24,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 311.32ms. Allocated memory is still 159.4MB. Free memory was 124.5MB in the beginning and 114.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 12:02:24,675 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.74ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 112.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:24,676 INFO L158 Benchmark]: Boogie Preprocessor took 39.52ms. Allocated memory is still 159.4MB. Free memory was 112.8MB in the beginning and 110.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:02:24,677 INFO L158 Benchmark]: RCFGBuilder took 306.49ms. Allocated memory is still 159.4MB. Free memory was 110.8MB in the beginning and 101.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-26 12:02:24,677 INFO L158 Benchmark]: BuchiAutomizer took 1423.33ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 101.3MB in the beginning and 162.7MB in the end (delta: -61.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:24,678 INFO L158 Benchmark]: Witness Printer took 4.94ms. Allocated memory is still 201.3MB. Free memory was 162.7MB in the beginning and 161.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:02:24,687 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 159.4MB. Free memory is still 104.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 311.32ms. Allocated memory is still 159.4MB. Free memory was 124.5MB in the beginning and 114.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.74ms. Allocated memory is still 159.4MB. Free memory was 114.4MB in the beginning and 112.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.52ms. Allocated memory is still 159.4MB. Free memory was 112.8MB in the beginning and 110.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.49ms. Allocated memory is still 159.4MB. Free memory was 110.8MB in the beginning and 101.3MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1423.33ms. Allocated memory was 159.4MB in the beginning and 201.3MB in the end (delta: 41.9MB). Free memory was 101.3MB in the beginning and 162.7MB in the end (delta: -61.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.94ms. Allocated memory is still 201.3MB. Free memory was 162.7MB in the beginning and 161.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function ((-2 * i) + 7199999) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. 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, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 13 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 41ms 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! [2023-11-26 12:02:24,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2023-11-26 12:02:24,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e78c9b7d-654e-4853-bd8f-3d4723a12cda/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE