./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/loop-new/count_by_2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 527bcce2 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_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-new/count_by_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx --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 86d4e5d9ff4808cbd51f54a8e918c7da7f8f3d0797ade1f0adcb3da91d131026 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:09:25,321 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:09:25,438 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-21 22:09:25,444 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:09:25,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:09:25,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:09:25,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:09:25,511 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:09:25,512 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:09:25,512 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:09:25,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:09:25,514 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:09:25,514 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:09:25,515 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-21 22:09:25,516 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-21 22:09:25,516 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-21 22:09:25,517 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-21 22:09:25,518 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-21 22:09:25,518 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-21 22:09:25,519 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:09:25,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-21 22:09:25,520 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:09:25,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:09:25,522 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:09:25,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:09:25,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-21 22:09:25,524 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-21 22:09:25,543 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-21 22:09:25,544 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:09:25,544 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:09:25,545 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:09:25,545 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-21 22:09:25,546 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:09:25,546 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:09:25,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:09:25,547 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:09:25,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:09:25,549 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-21 22:09:25,549 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_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86d4e5d9ff4808cbd51f54a8e918c7da7f8f3d0797ade1f0adcb3da91d131026 [2023-11-21 22:09:25,819 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:09:25,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:09:25,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:09:25,846 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:09:25,847 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:09:25,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/loop-new/count_by_2.i [2023-11-21 22:09:29,091 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:09:29,311 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:09:29,312 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/sv-benchmarks/c/loop-new/count_by_2.i [2023-11-21 22:09:29,318 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/data/51b088b52/e41d0d6ddeb54251b86b39ccf1b9dbe7/FLAG4aa9f69eb [2023-11-21 22:09:29,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/data/51b088b52/e41d0d6ddeb54251b86b39ccf1b9dbe7 [2023-11-21 22:09:29,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:09:29,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:09:29,356 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:29,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:09:29,361 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:09:29,362 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,363 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c853b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29, skipping insertion in model container [2023-11-21 22:09:29,363 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,386 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:09:29,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:29,598 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:09:29,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:29,633 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:09:29,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29 WrapperNode [2023-11-21 22:09:29,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:29,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:29,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:09:29,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:09:29,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,681 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 27 [2023-11-21 22:09:29,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:29,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:09:29,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:09:29,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:09:29,693 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,694 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,703 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:09:29,703 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,703 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,706 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,710 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,712 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,714 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:09:29,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:09:29,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:09:29,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:09:29,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (1/1) ... [2023-11-21 22:09:29,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:09:29,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:29,775 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:29,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-21 22:09:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:09:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:09:29,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:09:29,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:09:29,867 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:09:29,869 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:09:29,957 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:09:29,967 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:09:29,967 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:09:29,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:29 BoogieIcfgContainer [2023-11-21 22:09:29,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:09:29,971 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-21 22:09:29,971 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-21 22:09:29,976 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-21 22:09:29,977 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:09:29,977 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 10:09:29" (1/3) ... [2023-11-21 22:09:29,978 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55c667bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:09:29, skipping insertion in model container [2023-11-21 22:09:29,978 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:09:29,979 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:29" (2/3) ... [2023-11-21 22:09:29,979 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@55c667bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 10:09:29, skipping insertion in model container [2023-11-21 22:09:29,979 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-21 22:09:29,980 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:29" (3/3) ... [2023-11-21 22:09:29,981 INFO L332 chiAutomizerObserver]: Analyzing ICFG count_by_2.i [2023-11-21 22:09:30,036 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-21 22:09:30,036 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-21 22:09:30,037 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-21 22:09:30,037 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-21 22:09:30,037 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-21 22:09:30,037 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-21 22:09:30,037 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-21 22:09:30,038 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-21 22:09:30,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2023-11-21 22:09:30,060 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:09:30,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:09:30,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:09:30,066 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:09:30,066 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:09:30,066 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-21 22:09:30,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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) [2023-11-21 22:09:30,068 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2023-11-21 22:09:30,068 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-21 22:09:30,068 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-21 22:09:30,069 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-21 22:09:30,069 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2023-11-21 22:09:30,076 INFO L748 eck$LassoCheckResult]: Stem: 10#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~i~0#1;havoc main_~i~0#1;main_~i~0#1 := 0; 12#L26-3true [2023-11-21 22:09:30,077 INFO L750 eck$LassoCheckResult]: Loop: 12#L26-3true assume !!(main_~i~0#1 < 1000000); 8#L26-2true main_~i~0#1 := 2 + main_~i~0#1; 12#L26-3true [2023-11-21 22:09:30,083 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:30,083 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-21 22:09:30,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:30,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208499410] [2023-11-21 22:09:30,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:30,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:30,187 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:30,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:30,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:30,226 INFO L85 PathProgramCache]: Analyzing trace with hash 1283, now seen corresponding path program 1 times [2023-11-21 22:09:30,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:30,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304136023] [2023-11-21 22:09:30,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:30,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:30,242 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:30,252 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:30,255 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:30,255 INFO L85 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2023-11-21 22:09:30,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:30,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067089433] [2023-11-21 22:09:30,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:30,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:30,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:30,280 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:09:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:09:30,312 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:09:30,384 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:09:30,385 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:09:30,385 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:09:30,385 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:09:30,385 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2023-11-21 22:09:30,386 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:09:30,386 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:09:30,386 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:09:30,386 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_2.i_Iteration1_Loop [2023-11-21 22:09:30,386 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:09:30,387 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:09:30,407 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:09:30,467 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:09:30,468 INFO L404 LassoAnalysis]: Checking for nontermination... [2023-11-21 22:09:30,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:09:30,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:30,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:30,482 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2023-11-21 22:09:30,482 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:09:30,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2023-11-21 22:09:30,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:09:30,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:09:30,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:30,541 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:30,549 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2023-11-21 22:09:30,549 INFO L160 nArgumentSynthesizer]: Using integer mode. [2023-11-21 22:09:30,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2023-11-21 22:09:30,616 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2023-11-21 22:09:30,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2023-11-21 22:09:30,621 INFO L210 LassoAnalysis]: Preferences: [2023-11-21 22:09:30,621 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2023-11-21 22:09:30,622 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2023-11-21 22:09:30,622 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2023-11-21 22:09:30,622 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2023-11-21 22:09:30,622 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:09:30,622 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2023-11-21 22:09:30,622 INFO L132 ssoRankerPreferences]: Path of dumped script: [2023-11-21 22:09:30,622 INFO L133 ssoRankerPreferences]: Filename of dumped script: count_by_2.i_Iteration1_Loop [2023-11-21 22:09:30,622 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2023-11-21 22:09:30,623 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2023-11-21 22:09:30,624 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2023-11-21 22:09:30,669 INFO L294 LassoAnalysis]: Preprocessing complete. [2023-11-21 22:09:30,675 INFO L490 LassoAnalysis]: Using template 'affine'. [2023-11-21 22:09:30,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:09:30,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:30,681 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:30,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2023-11-21 22:09:30,685 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 [2023-11-21 22:09:30,698 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2023-11-21 22:09:30,698 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2023-11-21 22:09:30,699 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2023-11-21 22:09:30,699 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2023-11-21 22:09:30,699 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2023-11-21 22:09:30,703 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2023-11-21 22:09:30,703 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2023-11-21 22:09:30,715 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2023-11-21 22:09:30,723 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2023-11-21 22:09:30,723 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2023-11-21 22:09:30,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-21 22:09:30,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:30,749 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:30,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2023-11-21 22:09:30,757 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2023-11-21 22:09:30,757 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2023-11-21 22:09:30,758 INFO L513 LassoAnalysis]: Proved termination. [2023-11-21 22:09:30,759 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0#1) = -1*ULTIMATE.start_main_~i~0#1 + 1000000 Supporting invariants [] [2023-11-21 22:09:30,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:09:30,789 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2023-11-21 22:09:30,832 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:30,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:30,860 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-21 22:09:30,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:09:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:30,876 WARN L260 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-21 22:09:30,877 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:09:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:09:31,025 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 [2023-11-21 22:09:31,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2023-11-21 22:09:31,032 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-21 22:09:31,115 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 13 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 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 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 29 states and 37 transitions. Complement of second has 8 states. [2023-11-21 22:09:31,118 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 [2023-11-21 22:09:31,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-11-21 22:09:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 23 transitions. [2023-11-21 22:09:31,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 2 letters. Loop has 2 letters. [2023-11-21 22:09:31,127 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:09:31,127 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 4 letters. Loop has 2 letters. [2023-11-21 22:09:31,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:09:31,128 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 23 transitions. Stem has 2 letters. Loop has 4 letters. [2023-11-21 22:09:31,128 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2023-11-21 22:09:31,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 37 transitions. [2023-11-21 22:09:31,133 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 22:09:31,135 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2023-11-21 22:09:31,136 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2023-11-21 22:09:31,136 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2023-11-21 22:09:31,137 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2023-11-21 22:09:31,137 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-21 22:09:31,137 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:09:31,137 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:09:31,137 INFO L428 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:09:31,138 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-21 22:09:31,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:09:31,138 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2023-11-21 22:09:31,138 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2023-11-21 22:09:31,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 10:09:31 BoogieIcfgContainer [2023-11-21 22:09:31,145 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-21 22:09:31,146 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:09:31,146 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:09:31,146 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:09:31,147 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:29" (3/4) ... [2023-11-21 22:09:31,150 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:09:31,151 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:09:31,152 INFO L158 Benchmark]: Toolchain (without parser) took 1797.25ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 95.0MB in the beginning and 161.6MB in the end (delta: -66.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:09:31,153 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:09:31,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.85ms. Allocated memory is still 140.5MB. Free memory was 95.0MB in the beginning and 84.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:09:31,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.39ms. Allocated memory is still 140.5MB. Free memory was 84.5MB in the beginning and 83.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:09:31,155 INFO L158 Benchmark]: Boogie Preprocessor took 31.31ms. Allocated memory is still 140.5MB. Free memory was 83.2MB in the beginning and 81.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:09:31,156 INFO L158 Benchmark]: RCFGBuilder took 254.85ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 72.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:09:31,156 INFO L158 Benchmark]: BuchiAutomizer took 1174.19ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 72.8MB in the beginning and 162.6MB in the end (delta: -89.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:09:31,157 INFO L158 Benchmark]: Witness Printer took 5.21ms. Allocated memory is still 195.0MB. Free memory was 162.6MB in the beginning and 161.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:09:31,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 140.5MB. Free memory is still 107.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.85ms. Allocated memory is still 140.5MB. Free memory was 95.0MB in the beginning and 84.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.39ms. Allocated memory is still 140.5MB. Free memory was 84.5MB in the beginning and 83.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.31ms. Allocated memory is still 140.5MB. Free memory was 83.2MB in the beginning and 81.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 254.85ms. Allocated memory is still 140.5MB. Free memory was 81.8MB in the beginning and 72.8MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1174.19ms. Allocated memory was 140.5MB in the beginning and 195.0MB in the end (delta: 54.5MB). Free memory was 72.8MB in the beginning and 162.6MB in the end (delta: -89.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.21ms. Allocated memory is still 195.0MB. Free memory was 162.6MB in the beginning and 161.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 ((-1 * i) + 1000000) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. 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, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 15 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 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: 81ms 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! [2023-11-21 22:09:31,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_471b6c43-cc8a-47cd-9132-4628c37fd2d5/bin/uautomizer-verify-bycVGegfSx/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