./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c --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_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/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_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/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_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/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 46affb860f1d0d7b6656a3074088d89f6e139022ec85b08907ba16419f351bb9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:41:23,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:41:23,341 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-13 15:41:23,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:41:23,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:41:23,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:41:23,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:41:23,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:41:23,381 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:41:23,381 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:41:23,381 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:41:23,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:41:23,382 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:41:23,382 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-13 15:41:23,382 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-13 15:41:23,382 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-13 15:41:23,383 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-13 15:41:23,383 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-13 15:41:23,383 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-13 15:41:23,383 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:41:23,383 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-13 15:41:23,384 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:41:23,384 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:41:23,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-13 15:41:23,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-13 15:41:23,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-13 15:41:23,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:41:23,385 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:41:23,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:41:23,385 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-13 15:41:23,385 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:41:23,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:41:23,386 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:41:23,386 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:41:23,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:41:23,387 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-13 15:41:23,387 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_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/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 -> 46affb860f1d0d7b6656a3074088d89f6e139022ec85b08907ba16419f351bb9 [2024-11-13 15:41:23,782 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:41:23,799 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:41:23,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:41:23,804 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:41:23,805 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:41:23,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c Unable to find full path for "g++" [2024-11-13 15:41:26,230 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:41:26,518 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:41:26,519 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2024-11-13 15:41:26,529 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/data/b1cd799e8/ae6f2b9283994659872cba260a2bef7d/FLAGdaef66da7 [2024-11-13 15:41:26,553 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/data/b1cd799e8/ae6f2b9283994659872cba260a2bef7d [2024-11-13 15:41:26,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:41:26,562 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:41:26,564 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:41:26,564 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:41:26,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:41:26,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eba2900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26, skipping insertion in model container [2024-11-13 15:41:26,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,605 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:41:26,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:41:26,816 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:41:26,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:41:26,850 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:41:26,851 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26 WrapperNode [2024-11-13 15:41:26,851 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:41:26,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:41:26,854 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:41:26,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:41:26,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,889 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2024-11-13 15:41:26,889 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:41:26,890 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:41:26,891 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:41:26,891 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:41:26,901 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,902 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,903 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,911 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-13 15:41:26,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,913 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,915 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,920 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,921 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:41:26,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:41:26,927 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:41:26,927 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:41:26,932 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (1/1) ... [2024-11-13 15:41:26,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-13 15:41:26,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:41:26,986 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-13 15:41:26,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-13 15:41:27,029 INFO L130 BoogieDeclarations]: Found specification of procedure binary_search [2024-11-13 15:41:27,029 INFO L138 BoogieDeclarations]: Found implementation of procedure binary_search [2024-11-13 15:41:27,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:41:27,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:41:27,111 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:41:27,114 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:41:27,315 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-13 15:41:27,315 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:41:27,334 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:41:27,334 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 15:41:27,334 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:41:27 BoogieIcfgContainer [2024-11-13 15:41:27,334 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:41:27,336 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-13 15:41:27,336 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-13 15:41:27,343 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-13 15:41:27,343 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:41:27,344 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 03:41:26" (1/3) ... [2024-11-13 15:41:27,345 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e7b1fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:41:27, skipping insertion in model container [2024-11-13 15:41:27,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:41:27,345 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:41:26" (2/3) ... [2024-11-13 15:41:27,346 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3e7b1fad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 03:41:27, skipping insertion in model container [2024-11-13 15:41:27,346 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-13 15:41:27,346 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:41:27" (3/3) ... [2024-11-13 15:41:27,347 INFO L333 chiAutomizerObserver]: Analyzing ICFG Binary_Search-2.c [2024-11-13 15:41:27,433 INFO L299 stractBuchiCegarLoop]: Interprodecural is true [2024-11-13 15:41:27,433 INFO L300 stractBuchiCegarLoop]: Hoare is None [2024-11-13 15:41:27,434 INFO L301 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-13 15:41:27,434 INFO L302 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-13 15:41:27,434 INFO L303 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-13 15:41:27,434 INFO L304 stractBuchiCegarLoop]: Difference is false [2024-11-13 15:41:27,435 INFO L305 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-13 15:41:27,435 INFO L309 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-13 15:41:27,441 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:41:27,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 15:41:27,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:41:27,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:41:27,479 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-13 15:41:27,480 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-13 15:41:27,481 INFO L331 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-13 15:41:27,481 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 13 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:41:27,483 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-13 15:41:27,485 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-13 15:41:27,485 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-13 15:41:27,486 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-13 15:41:27,486 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-13 15:41:27,496 INFO L745 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~x~0#1, main_~y~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 11#L22true assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823); 15#L23true assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823); 17#L24true call main_#t~ret5#1 := binary_search(main_~x~0#1, main_~y~0#1);< 5#$Ultimate##0true [2024-11-13 15:41:27,497 INFO L747 eck$LassoCheckResult]: Loop: 5#$Ultimate##0true ~i := #in~i;~j := #in~j; 9#L10true assume !(~i >= ~j);~mid~0 := (if ~i + ~j < 0 && 0 != (~i + ~j) % 2 then 1 + (~i + ~j) / 2 else (~i + ~j) / 2);havoc #t~nondet0; 16#L12true assume 0 != #t~nondet0;havoc #t~nondet0; 13#L13true call #t~ret1 := binary_search(~i, ~mid~0);< 5#$Ultimate##0true [2024-11-13 15:41:27,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:27,504 INFO L85 PathProgramCache]: Analyzing trace with hash 42056124, now seen corresponding path program 1 times [2024-11-13 15:41:27,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:27,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382086727] [2024-11-13 15:41:27,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:27,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:41:27,633 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:41:27,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:41:27,672 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:41:27,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:27,677 INFO L85 PathProgramCache]: Analyzing trace with hash 927614, now seen corresponding path program 1 times [2024-11-13 15:41:27,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:27,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557491838] [2024-11-13 15:41:27,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:27,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:41:27,700 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:41:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:41:27,721 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:41:27,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:41:27,724 INFO L85 PathProgramCache]: Analyzing trace with hash 324438969, now seen corresponding path program 1 times [2024-11-13 15:41:27,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:41:27,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784779298] [2024-11-13 15:41:27,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:41:27,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:41:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:41:27,753 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:41:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:41:27,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:41:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:41:28,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:41:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:41:28,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 03:41:28 BoogieIcfgContainer [2024-11-13 15:41:28,598 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-13 15:41:28,598 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:41:28,598 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:41:28,600 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:41:28,601 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:41:27" (3/4) ... [2024-11-13 15:41:28,607 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-13 15:41:28,657 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:41:28,657 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:41:28,659 INFO L158 Benchmark]: Toolchain (without parser) took 2097.24ms. Allocated memory is still 142.6MB. Free memory was 119.8MB in the beginning and 110.4MB in the end (delta: 9.3MB). Peak memory consumption was 3.5MB. Max. memory is 16.1GB. [2024-11-13 15:41:28,662 INFO L158 Benchmark]: CDTParser took 1.35ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:41:28,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.48ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 109.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:41:28,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.75ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 108.7MB in the end (delta: 786.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:41:28,664 INFO L158 Benchmark]: Boogie Preprocessor took 36.36ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 107.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:41:28,664 INFO L158 Benchmark]: RCFGBuilder took 407.38ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 97.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:41:28,664 INFO L158 Benchmark]: BuchiAutomizer took 1261.42ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 112.2MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:41:28,665 INFO L158 Benchmark]: Witness Printer took 58.87ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 110.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:41:28,667 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.35ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.48ms. Allocated memory is still 142.6MB. Free memory was 119.5MB in the beginning and 109.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.75ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 108.7MB in the end (delta: 786.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.36ms. Allocated memory is still 142.6MB. Free memory was 108.7MB in the beginning and 107.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 407.38ms. Allocated memory is still 142.6MB. Free memory was 107.6MB in the beginning and 97.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1261.42ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 112.2MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.87ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 110.4MB in the end (delta: 1.8MB). 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 8]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L19] int x = __VERIFIER_nondet_int(); [L20] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(-1073741823<=x && x<=1073741823)) VAL [x=-1] [L23] COND FALSE !(!(-1073741823<=y && y<=1073741823)) VAL [x=-1, y=0] [L24] CALL binary_search(x, y) VAL [\old(i)=-1, \old(j)=0] Loop: [L10] COND FALSE !(i>=j) [L11] int mid = (i+j)/2; [L12] COND TRUE __VERIFIER_nondet_int() [L13] CALL binary_search(i,mid) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 8]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L19] int x = __VERIFIER_nondet_int(); [L20] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(-1073741823<=x && x<=1073741823)) VAL [x=-1] [L23] COND FALSE !(!(-1073741823<=y && y<=1073741823)) VAL [x=-1, y=0] [L24] CALL binary_search(x, y) VAL [\old(i)=-1, \old(j)=0] Loop: [L10] COND FALSE !(i>=j) [L11] int mid = (i+j)/2; [L12] COND TRUE __VERIFIER_nondet_int() [L13] CALL binary_search(i,mid) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-13 15:41:28,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21f55ff3-f16b-47c8-9cb5-e3cc0fce7cf2/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)