./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-bwb/parity0.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-bwb/parity0.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd --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 64bit --witnessprinter.graph.data.programhash 1708189d114fc991c7d8cbd3a7ecd0f04bc3d73251a9b81e9ba9fc25d8cf6990 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:24:26,249 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:24:26,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 14:24:26,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:24:26,346 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:24:26,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:24:26,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:24:26,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:24:26,381 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:24:26,381 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:24:26,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:24:26,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:24:26,382 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:24:26,382 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 14:24:26,383 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 14:24:26,384 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 14:24:26,384 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 14:24:26,384 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 14:24:26,384 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 14:24:26,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:24:26,384 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 14:24:26,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:24:26,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:24:26,385 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 14:24:26,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 14:24:26,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 14:24:26,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:24:26,385 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 14:24:26,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:24:26,385 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 14:24:26,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:24:26,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:24:26,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:24:26,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:24:26,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:24:26,387 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 14:24:26,387 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1708189d114fc991c7d8cbd3a7ecd0f04bc3d73251a9b81e9ba9fc25d8cf6990 [2024-11-13 14:24:26,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:24:26,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:24:26,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:24:26,734 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:24:26,734 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:24:26,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-bwb/parity0.i Unable to find full path for "g++" [2024-11-13 14:24:28,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:24:28,975 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:24:28,976 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/sv-benchmarks/c/termination-bwb/parity0.i [2024-11-13 14:24:28,983 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/data/e5f73c7f7/25c44560cb5b4fe1b58eacb6c04d3d43/FLAG7740693f0 [2024-11-13 14:24:29,280 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/data/e5f73c7f7/25c44560cb5b4fe1b58eacb6c04d3d43 [2024-11-13 14:24:29,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:24:29,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:24:29,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:24:29,286 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:24:29,291 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:24:29,292 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac9926e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29, skipping insertion in model container [2024-11-13 14:24:29,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:24:29,471 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:24:29,479 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:24:29,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:24:29,509 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:24:29,509 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29 WrapperNode [2024-11-13 14:24:29,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:24:29,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:24:29,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:24:29,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:24:29,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,542 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2024-11-13 14:24:29,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:24:29,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:24:29,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:24:29,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:24:29,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,556 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,564 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 14:24:29,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,570 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,577 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,578 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,580 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:24:29,583 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:24:29,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:24:29,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:24:29,587 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (1/1) ... [2024-11-13 14:24:29,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:29,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:29,626 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:24:29,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 14:24:29,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:24:29,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:24:29,719 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:24:29,721 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:24:29,810 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-11-13 14:24:29,810 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:24:29,819 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:24:29,819 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 14:24:29,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:24:29 BoogieIcfgContainer [2024-11-13 14:24:29,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:24:29,820 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 14:24:29,820 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 14:24:29,826 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 14:24:29,826 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:24:29,826 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 02:24:29" (1/3) ... [2024-11-13 14:24:29,828 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@283d345b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:24:29, skipping insertion in model container [2024-11-13 14:24:29,828 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:24:29,828 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:24:29" (2/3) ... [2024-11-13 14:24:29,828 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@283d345b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 02:24:29, skipping insertion in model container [2024-11-13 14:24:29,828 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 14:24:29,828 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:24:29" (3/3) ... [2024-11-13 14:24:29,829 INFO L333 chiAutomizerObserver]: Analyzing ICFG parity0.i [2024-11-13 14:24:29,883 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 14:24:29,883 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 14:24:29,883 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 14:24:29,883 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 14:24:29,884 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 14:24:29,884 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 14:24:29,884 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 14:24:29,884 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 14:24:29,889 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2024-11-13 14:24:29,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 14:24:29,904 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:24:29,904 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:24:29,908 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:24:29,909 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 14:24:29,909 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 14:24:29,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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) [2024-11-13 14:24:29,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 14:24:29,910 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:24:29,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:24:29,910 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-13 14:24:29,910 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-13 14:24:29,917 INFO L745 eck$LassoCheckResult]: Stem: 7#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0; 11#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~bitwise2#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 6#L13-2true [2024-11-13 14:24:29,918 INFO L747 eck$LassoCheckResult]: Loop: 6#L13-2true assume !!(~v~0 > 0);~parity~0 := 1 - ~parity~0; 2#L16true assume 0 == ~v~0 || 0 == ~v~0 - 1;main_#t~bitwise2#1 := 0; 12#L16-5true ~v~0 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 6#L13-2true [2024-11-13 14:24:29,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:29,929 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-13 14:24:29,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:29,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012995595] [2024-11-13 14:24:29,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:29,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:30,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,013 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:24:30,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:24:30,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:30,041 INFO L85 PathProgramCache]: Analyzing trace with hash 39827, now seen corresponding path program 1 times [2024-11-13 14:24:30,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:30,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001602278] [2024-11-13 14:24:30,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:30,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:24:30,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,075 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:24:30,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:30,076 INFO L85 PathProgramCache]: Analyzing trace with hash 28698769, now seen corresponding path program 1 times [2024-11-13 14:24:30,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:30,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554138451] [2024-11-13 14:24:30,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:30,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,096 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:24:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,114 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:24:30,226 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:24:30,226 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:24:30,227 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:24:30,227 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:24:30,227 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 14:24:30,227 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:30,227 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:24:30,227 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:24:30,227 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity0.i_Iteration1_Loop [2024-11-13 14:24:30,227 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:24:30,228 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:24:30,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:30,254 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:30,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:30,327 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:24:30,328 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 14:24:30,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:30,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:30,334 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:24:30,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-13 14:24:30,336 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:24:30,337 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:24:30,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-13 14:24:30,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:30,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:30,378 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:24:30,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-13 14:24:30,381 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 14:24:30,381 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:24:30,398 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 14:24:30,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-13 14:24:30,414 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:24:30,414 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:24:30,414 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:24:30,414 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:24:30,414 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 14:24:30,414 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:30,414 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:24:30,414 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:24:30,414 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity0.i_Iteration1_Loop [2024-11-13 14:24:30,415 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:24:30,415 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:24:30,416 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:30,426 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:30,431 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:30,478 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:24:30,482 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 14:24:30,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:30,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:30,486 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:24:30,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-13 14:24:30,493 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 [2024-11-13 14:24:30,508 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:24:30,509 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:24:30,509 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:24:30,509 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:24:30,509 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:24:30,515 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:24:30,515 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:24:30,518 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 14:24:30,524 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 14:24:30,527 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 14:24:30,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:30,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:30,531 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:24:30,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-13 14:24:30,534 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 14:24:30,534 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 14:24:30,535 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 14:24:30,535 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2024-11-13 14:24:30,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-13 14:24:30,556 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 14:24:30,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:30,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:24:30,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:24:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:30,618 WARN L253 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 14:24:30,619 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:24:30,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:24:30,692 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 14:24:30,694 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-13 14:24:30,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-13 14:24:30,856 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 46 states and 68 transitions. Complement of second has 11 states. [2024-11-13 14:24:30,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 4 non-accepting loop states 1 accepting loop states [2024-11-13 14:24:30,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-13 14:24:30,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 42 transitions. [2024-11-13 14:24:30,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 42 transitions. Stem has 2 letters. Loop has 3 letters. [2024-11-13 14:24:30,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:24:30,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 42 transitions. Stem has 5 letters. Loop has 3 letters. [2024-11-13 14:24:30,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:24:30,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 42 transitions. Stem has 2 letters. Loop has 6 letters. [2024-11-13 14:24:30,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:24:30,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 46 states and 68 transitions. [2024-11-13 14:24:30,879 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 14:24:30,882 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 46 states to 23 states and 27 transitions. [2024-11-13 14:24:30,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2024-11-13 14:24:30,883 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2024-11-13 14:24:30,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 27 transitions. [2024-11-13 14:24:30,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-13 14:24:30,885 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-11-13 14:24:30,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 27 transitions. [2024-11-13 14:24:30,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 15. [2024-11-13 14:24:30,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 15 states have (on average 1.2) internal successors, (18), 14 states have internal predecessors, (18), 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) [2024-11-13 14:24:30,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2024-11-13 14:24:30,908 INFO L240 hiAutomatonCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-11-13 14:24:30,908 INFO L424 stractBuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2024-11-13 14:24:30,908 INFO L331 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-13 14:24:30,908 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2024-11-13 14:24:30,909 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 14:24:30,909 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 14:24:30,909 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 14:24:30,909 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-13 14:24:30,909 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2024-11-13 14:24:30,910 INFO L745 eck$LassoCheckResult]: Stem: 117#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;~v~0 := 0;~y~0 := 0;~parity~0 := 0; 118#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~bitwise2#1, main_~z~0#1.base, main_~z~0#1.offset;havoc main_~z~0#1.base, main_~z~0#1.offset;main_~z~0#1.base, main_~z~0#1.offset := 0, 0;~parity~0 := 0;havoc main_#t~nondet0#1;~y~0 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;~v~0 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 121#L13-2 assume !!(~v~0 > 0);~parity~0 := 1 - ~parity~0; 108#L16 [2024-11-13 14:24:30,910 INFO L747 eck$LassoCheckResult]: Loop: 108#L16 assume !(0 == ~v~0 || 0 == ~v~0 - 1); 109#L16-2 assume !(~v~0 == ~v~0 - 1); 115#L16-4 havoc main_#t~bitwise2#1;assume (((((~v~0 < 0 && ~v~0 - 1 >= 0) || main_#t~bitwise2#1 <= ~v~0) && ((~v~0 >= 0 && ~v~0 - 1 < 0) || main_#t~bitwise2#1 <= ~v~0 - 1)) && ((~v~0 < 0 && ~v~0 - 1 < 0) || main_#t~bitwise2#1 >= 0)) && ((~v~0 >= 0 && ~v~0 - 1 >= 0) || main_#t~bitwise2#1 > ~v~0 + (~v~0 - 1))) && main_#t~bitwise2#1 >= -2147483648; 119#L16-5 ~v~0 := main_#t~bitwise2#1;havoc main_#t~bitwise2#1; 113#L13-2 assume !!(~v~0 > 0);~parity~0 := 1 - ~parity~0; 108#L16 [2024-11-13 14:24:30,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:30,911 INFO L85 PathProgramCache]: Analyzing trace with hash 29863, now seen corresponding path program 1 times [2024-11-13 14:24:30,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:30,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936377074] [2024-11-13 14:24:30,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:30,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:30,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,917 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:24:30,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,922 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:24:30,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:30,922 INFO L85 PathProgramCache]: Analyzing trace with hash 43098690, now seen corresponding path program 1 times [2024-11-13 14:24:30,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:30,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108021029] [2024-11-13 14:24:30,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:30,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:30,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,932 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:24:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,939 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:24:30,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:30,940 INFO L85 PathProgramCache]: Analyzing trace with hash 268313948, now seen corresponding path program 1 times [2024-11-13 14:24:30,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:24:30,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029229339] [2024-11-13 14:24:30,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:24:30,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:24:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:24:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:24:30,960 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:24:31,049 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:24:31,049 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:24:31,049 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:24:31,049 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:24:31,049 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-13 14:24:31,049 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:31,049 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:24:31,049 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:24:31,049 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity0.i_Iteration2_Loop [2024-11-13 14:24:31,049 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:24:31,049 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:24:31,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:31,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:31,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:31,105 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:24:31,105 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-13 14:24:31,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:31,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:31,109 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:24:31,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-13 14:24:31,113 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-13 14:24:31,113 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:24:31,138 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-13 14:24:31,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:31,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:31,140 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:24:31,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-13 14:24:31,141 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-13 14:24:31,141 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-13 14:24:31,192 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-13 14:24:31,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-13 14:24:31,195 INFO L204 LassoAnalysis]: Preferences: [2024-11-13 14:24:31,195 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-13 14:24:31,195 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-13 14:24:31,195 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-13 14:24:31,195 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-13 14:24:31,195 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:31,195 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-13 14:24:31,196 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-13 14:24:31,196 INFO L132 ssoRankerPreferences]: Filename of dumped script: parity0.i_Iteration2_Loop [2024-11-13 14:24:31,196 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-13 14:24:31,196 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-13 14:24:31,197 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:31,207 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:31,213 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-13 14:24:31,254 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-13 14:24:31,254 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-13 14:24:31,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:31,255 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:31,257 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:24:31,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-13 14:24:31,262 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 [2024-11-13 14:24:31,277 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-13 14:24:31,278 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-13 14:24:31,278 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-13 14:24:31,278 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-13 14:24:31,278 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-13 14:24:31,280 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-13 14:24:31,280 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-13 14:24:31,284 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-13 14:24:31,288 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-13 14:24:31,288 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-13 14:24:31,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 14:24:31,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:24:31,294 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 14:24:31,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-13 14:24:31,297 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-13 14:24:31,297 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-13 14:24:31,297 INFO L474 LassoAnalysis]: Proved termination. [2024-11-13 14:24:31,297 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(~v~0) = 1*~v~0 Supporting invariants [] [2024-11-13 14:24:31,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-13 14:24:31,315 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-13 14:24:31,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:24:31,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:31,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 14:24:31,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:24:31,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:24:31,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 14:24:31,366 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:24:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:24:31,470 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-11-13 14:24:31,470 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5 Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-11-13 14:24:31,535 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 5. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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 26 states and 30 transitions. Complement of second has 8 states. [2024-11-13 14:24:31,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-11-13 14:24:31,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 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) [2024-11-13 14:24:31,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 9 transitions. [2024-11-13 14:24:31,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 5 letters. [2024-11-13 14:24:31,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:24:31,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 8 letters. Loop has 5 letters. [2024-11-13 14:24:31,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:24:31,538 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 9 transitions. Stem has 3 letters. Loop has 10 letters. [2024-11-13 14:24:31,538 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-13 14:24:31,539 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 30 transitions. [2024-11-13 14:24:31,539 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 14:24:31,540 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 0 states and 0 transitions. [2024-11-13 14:24:31,540 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-13 14:24:31,542 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-13 14:24:31,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-13 14:24:31,543 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-13 14:24:31,543 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:24:31,543 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:24:31,543 INFO L424 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 14:24:31,543 INFO L331 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-13 14:24:31,543 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-13 14:24:31,543 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-13 14:24:31,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-13 14:24:31,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 02:24:31 BoogieIcfgContainer [2024-11-13 14:24:31,554 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 14:24:31,554 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:24:31,555 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:24:31,556 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:24:31,557 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:24:29" (3/4) ... [2024-11-13 14:24:31,559 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:24:31,560 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:24:31,563 INFO L158 Benchmark]: Toolchain (without parser) took 2276.75ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 60.6MB in the end (delta: 31.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-13 14:24:31,563 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:24:31,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.27ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 82.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:24:31,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.37ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:24:31,564 INFO L158 Benchmark]: Boogie Preprocessor took 36.11ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.4MB in the end (delta: 868.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:24:31,564 INFO L158 Benchmark]: RCFGBuilder took 236.27ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 71.3MB in the end (delta: 8.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:24:31,567 INFO L158 Benchmark]: BuchiAutomizer took 1733.63ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 61.1MB in the end (delta: 10.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2024-11-13 14:24:31,568 INFO L158 Benchmark]: Witness Printer took 5.68ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 60.6MB in the end (delta: 523.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:24:31,569 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 224.27ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 82.3MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.37ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 81.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.11ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.4MB in the end (delta: 868.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 236.27ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 71.3MB in the end (delta: 8.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1733.63ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 61.1MB in the end (delta: 10.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Witness Printer took 5.68ms. Allocated memory is still 117.4MB. Free memory was 61.1MB in the beginning and 60.6MB in the end (delta: 523.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function v and consists of 7 locations. One deterministic module has affine ranking function v and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. 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 [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 42 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 12 mSDtfsCounter, 42 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp64 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq159 hnf93 smp100 dnf100 smp100 tf115 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 51ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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! [2024-11-13 14:24:31,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-13 14:24:31,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef4f8042-5eb0-48f2-a38d-5d2e224bca6d/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE