./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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/termination-crafted/Binary_Search-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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-?-e2fb8be-m [2025-03-09 06:47:19,665 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:47:19,721 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2025-03-09 06:47:19,724 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:47:19,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:47:19,724 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder.Remove goto edges from RCFG [2025-03-09 06:47:19,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:47:19,746 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:47:19,746 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:47:19,746 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:47:19,747 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:47:19,747 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:47:19,747 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:47:19,747 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:47:19,748 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2025-03-09 06:47:19,748 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2025-03-09 06:47:19,748 INFO L153 SettingsManager]: * Use old map elimination=false [2025-03-09 06:47:19,748 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2025-03-09 06:47:19,748 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2025-03-09 06:47:19,748 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2025-03-09 06:47:19,748 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:47:19,748 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2025-03-09 06:47:19,748 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:47:19,748 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:47:19,748 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2025-03-09 06:47:19,749 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2025-03-09 06:47:19,749 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2025-03-09 06:47:19,749 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:47:19,749 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:47:19,749 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2025-03-09 06:47:19,749 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:47:19,749 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:47:19,749 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:47:19,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:47:19,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:47:19,750 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:47:19,750 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2025-03-09 06:47:19,750 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2025-03-09 06:47:19,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:47:19,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:47:19,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:47:19,978 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:47:19,978 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:47:19,979 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2025-03-09 06:47:21,106 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f258012c/f3c317e4c7a743378ab7060be01ec113/FLAG36bec1b97 [2025-03-09 06:47:21,294 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:47:21,295 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2025-03-09 06:47:21,300 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f258012c/f3c317e4c7a743378ab7060be01ec113/FLAG36bec1b97 [2025-03-09 06:47:21,661 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f258012c/f3c317e4c7a743378ab7060be01ec113 [2025-03-09 06:47:21,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:47:21,663 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:47:21,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:47:21,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:47:21,669 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:47:21,671 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,672 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f05fd61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21, skipping insertion in model container [2025-03-09 06:47:21,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,683 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:47:21,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:47:21,783 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:47:21,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:47:21,803 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:47:21,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21 WrapperNode [2025-03-09 06:47:21,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:47:21,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:47:21,806 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:47:21,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:47:21,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,823 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2025-03-09 06:47:21,824 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:47:21,824 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:47:21,825 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:47:21,825 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:47:21,830 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,830 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,831 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,835 INFO L175 MemorySlicer]: No memory access in input program. [2025-03-09 06:47:21,836 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,839 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,843 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,844 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:47:21,845 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:47:21,845 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:47:21,845 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:47:21,846 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (1/1) ... [2025-03-09 06:47:21,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2025-03-09 06:47:21,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:47:21,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2025-03-09 06:47:21,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2025-03-09 06:47:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure binary_search [2025-03-09 06:47:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure binary_search [2025-03-09 06:47:21,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:47:21,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:47:21,940 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:47:21,941 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:47:22,000 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L14: havoc #t~ret2; [2025-03-09 06:47:22,042 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2025-03-09 06:47:22,043 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:47:22,048 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:47:22,048 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:47:22,049 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:47:22 BoogieIcfgContainer [2025-03-09 06:47:22,049 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:47:22,050 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2025-03-09 06:47:22,050 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2025-03-09 06:47:22,053 INFO L274 PluginConnector]: BuchiAutomizer initialized [2025-03-09 06:47:22,054 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:47:22,054 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.03 06:47:21" (1/3) ... [2025-03-09 06:47:22,055 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70e86ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 06:47:22, skipping insertion in model container [2025-03-09 06:47:22,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:47:22,055 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:47:21" (2/3) ... [2025-03-09 06:47:22,055 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@70e86ceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.03 06:47:22, skipping insertion in model container [2025-03-09 06:47:22,055 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2025-03-09 06:47:22,055 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:47:22" (3/3) ... [2025-03-09 06:47:22,056 INFO L363 chiAutomizerObserver]: Analyzing ICFG Binary_Search-2.c [2025-03-09 06:47:22,089 INFO L306 stractBuchiCegarLoop]: Interprodecural is true [2025-03-09 06:47:22,089 INFO L307 stractBuchiCegarLoop]: Hoare is None [2025-03-09 06:47:22,089 INFO L308 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2025-03-09 06:47:22,089 INFO L309 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2025-03-09 06:47:22,090 INFO L310 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2025-03-09 06:47:22,090 INFO L311 stractBuchiCegarLoop]: Difference is false [2025-03-09 06:47:22,090 INFO L312 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2025-03-09 06:47:22,090 INFO L316 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2025-03-09 06:47:22,093 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) [2025-03-09 06:47:22,103 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-09 06:47:22,104 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:47:22,104 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:47:22,107 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-09 06:47:22,107 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-09 06:47:22,107 INFO L338 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2025-03-09 06:47:22,108 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) [2025-03-09 06:47:22,109 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2025-03-09 06:47:22,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2025-03-09 06:47:22,109 INFO L119 BuchiIsEmpty]: Starting construction of run [2025-03-09 06:47:22,109 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2025-03-09 06:47:22,109 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2025-03-09 06:47:22,112 INFO L752 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "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;" "assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823);" "assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823);" "call main_#t~ret5#1 := binary_search(main_~x~0#1, main_~y~0#1);"< [2025-03-09 06:47:22,112 INFO L754 eck$LassoCheckResult]: Loop: "~i := #in~i;~j := #in~j;" "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;" "assume 0 != #t~nondet0;havoc #t~nondet0;" "call #t~ret1 := binary_search(~i, ~mid~0);"< [2025-03-09 06:47:22,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:22,116 INFO L85 PathProgramCache]: Analyzing trace with hash 50546304, now seen corresponding path program 1 times [2025-03-09 06:47:22,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:22,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400039828] [2025-03-09 06:47:22,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:22,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:22,159 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:22,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:22,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:22,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:22,172 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:22,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:22,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:22,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:22,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:22,192 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:47:22,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:22,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1261014, now seen corresponding path program 1 times [2025-03-09 06:47:22,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:22,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187667134] [2025-03-09 06:47:22,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:22,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:22,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:47:22,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:47:22,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:22,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:22,214 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:22,220 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-03-09 06:47:22,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-03-09 06:47:22,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:22,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:22,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:47:22,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:47:22,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1425986347, now seen corresponding path program 1 times [2025-03-09 06:47:22,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:47:22,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992222589] [2025-03-09 06:47:22,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:47:22,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:47:22,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:47:22,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:47:22,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:22,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:22,251 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:22,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-09 06:47:22,265 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-09 06:47:22,265 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:22,265 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:22,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:47:22,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:22,677 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:22,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:22,678 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:22,678 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:47:22,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:47:22,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:47:22,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:47:22,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:47:22,702 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.03 06:47:22 BoogieIcfgContainer [2025-03-09 06:47:22,703 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2025-03-09 06:47:22,704 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:47:22,704 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:47:22,705 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:47:22,705 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:47:22" (3/4) ... [2025-03-09 06:47:22,707 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2025-03-09 06:47:22,731 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:47:22,731 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:47:22,734 INFO L158 Benchmark]: Toolchain (without parser) took 1069.07ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 47.0MB in the end (delta: 65.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-03-09 06:47:22,735 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:47:22,735 INFO L158 Benchmark]: CACSL2BoogieTranslator took 140.86ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 102.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:47:22,736 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.60ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 101.5MB in the end (delta: 920.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:47:22,736 INFO L158 Benchmark]: Boogie Preprocessor took 20.08ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 100.6MB in the end (delta: 894.0kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:47:22,736 INFO L158 Benchmark]: IcfgBuilder took 203.86ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 89.5MB in the end (delta: 11.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-09 06:47:22,736 INFO L158 Benchmark]: BuchiAutomizer took 653.62ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 49.8MB in the end (delta: 39.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-09 06:47:22,737 INFO L158 Benchmark]: Witness Printer took 27.90ms. Allocated memory is still 142.6MB. Free memory was 49.8MB in the beginning and 47.0MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:47:22,738 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 124.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 140.86ms. Allocated memory is still 142.6MB. Free memory was 112.2MB in the beginning and 102.4MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.60ms. Allocated memory is still 142.6MB. Free memory was 102.4MB in the beginning and 101.5MB in the end (delta: 920.9kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.08ms. Allocated memory is still 142.6MB. Free memory was 101.5MB in the beginning and 100.6MB in the end (delta: 894.0kB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 203.86ms. Allocated memory is still 142.6MB. Free memory was 100.6MB in the beginning and 89.5MB in the end (delta: 11.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 653.62ms. Allocated memory is still 142.6MB. Free memory was 89.0MB in the beginning and 49.8MB in the end (delta: 39.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 27.90ms. Allocated memory is still 142.6MB. Free memory was 49.8MB in the beginning and 47.0MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. 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 0.6s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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! [2025-03-09 06:47:22,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)