./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB --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-d790fec [2024-11-27 23:16:33,593 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:16:33,686 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-27 23:16:33,693 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:16:33,693 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:16:33,725 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:16:33,726 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:16:33,726 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:16:33,727 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:16:33,727 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:16:33,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:16:33,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:16:33,728 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:16:33,729 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 23:16:33,729 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 23:16:33,730 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 23:16:33,730 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 23:16:33,730 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 23:16:33,730 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 23:16:33,730 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:16:33,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 23:16:33,730 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:16:33,730 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:16:33,730 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 23:16:33,730 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 23:16:33,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 23:16:33,731 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:16:33,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:16:33,731 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 23:16:33,731 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:16:33,731 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:16:33,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:16:33,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:16:33,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:16:33,732 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 23:16:33,732 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 23:16:33,732 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_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB 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 [2024-11-27 23:16:34,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:16:34,049 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:16:34,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:16:34,053 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:16:34,053 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:16:34,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2024-11-27 23:16:37,050 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/data/44d901f41/b1750b780a3c45978975236cec80d62b/FLAG7c7669904 [2024-11-27 23:16:37,331 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:16:37,332 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/sv-benchmarks/c/termination-crafted/Binary_Search-2.c [2024-11-27 23:16:37,342 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/data/44d901f41/b1750b780a3c45978975236cec80d62b/FLAG7c7669904 [2024-11-27 23:16:37,610 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/data/44d901f41/b1750b780a3c45978975236cec80d62b [2024-11-27 23:16:37,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:16:37,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:16:37,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:16:37,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:16:37,620 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:16:37,620 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,621 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560bdd7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37, skipping insertion in model container [2024-11-27 23:16:37,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,635 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:16:37,793 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:16:37,801 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:16:37,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:16:37,825 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:16:37,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37 WrapperNode [2024-11-27 23:16:37,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:16:37,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:16:37,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:16:37,827 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:16:37,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,838 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,853 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16 [2024-11-27 23:16:37,853 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:16:37,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:16:37,854 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:16:37,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:16:37,863 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,865 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,871 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-27 23:16:37,872 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,872 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,878 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,879 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,882 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,883 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,884 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,885 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:16:37,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:16:37,886 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:16:37,886 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:16:37,888 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (1/1) ... [2024-11-27 23:16:37,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:16:37,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:16:37,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:16:37,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 23:16:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure binary_search [2024-11-27 23:16:37,958 INFO L138 BoogieDeclarations]: Found implementation of procedure binary_search [2024-11-27 23:16:37,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:16:37,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:16:38,012 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:16:38,014 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:16:38,167 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-27 23:16:38,169 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:16:38,181 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:16:38,181 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 23:16:38,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:38 BoogieIcfgContainer [2024-11-27 23:16:38,183 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:16:38,184 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 23:16:38,184 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 23:16:38,191 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 23:16:38,192 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:16:38,192 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 11:16:37" (1/3) ... [2024-11-27 23:16:38,193 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ba8a168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:16:38, skipping insertion in model container [2024-11-27 23:16:38,194 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:16:38,194 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:16:37" (2/3) ... [2024-11-27 23:16:38,196 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7ba8a168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:16:38, skipping insertion in model container [2024-11-27 23:16:38,196 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:16:38,196 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:38" (3/3) ... [2024-11-27 23:16:38,197 INFO L363 chiAutomizerObserver]: Analyzing ICFG Binary_Search-2.c [2024-11-27 23:16:38,268 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 23:16:38,268 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 23:16:38,268 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 23:16:38,268 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 23:16:38,268 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 23:16:38,269 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 23:16:38,269 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 23:16:38,269 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 23:16:38,274 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) [2024-11-27 23:16:38,292 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-27 23:16:38,293 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:16:38,293 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:16:38,298 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-27 23:16:38,299 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-27 23:16:38,299 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 23:16:38,299 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) [2024-11-27 23:16:38,301 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-11-27 23:16:38,301 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:16:38,301 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:16:38,302 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2024-11-27 23:16:38,302 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-11-27 23:16:38,310 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~ret5#1, main_~x~0#1, main_~y~0#1;havoc main_#t~nondet3#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1;havoc main_#t~nondet4#1;main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;" "assume !!(-1073741823 <= main_~x~0#1 && main_~x~0#1 <= 1073741823);" "assume !!(-1073741823 <= main_~y~0#1 && main_~y~0#1 <= 1073741823);" "call main_#t~ret5#1 := binary_search(main_~x~0#1, main_~y~0#1);"< [2024-11-27 23:16:38,310 INFO L749 eck$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);"< [2024-11-27 23:16:38,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:38,318 INFO L85 PathProgramCache]: Analyzing trace with hash 42056124, now seen corresponding path program 1 times [2024-11-27 23:16:38,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:16:38,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457535862] [2024-11-27 23:16:38,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:38,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:16:38,402 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:16:38,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:16:38,433 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:16:38,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:38,437 INFO L85 PathProgramCache]: Analyzing trace with hash 927614, now seen corresponding path program 1 times [2024-11-27 23:16:38,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:16:38,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269670793] [2024-11-27 23:16:38,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:38,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:38,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:16:38,466 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:16:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:16:38,486 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:16:38,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:16:38,488 INFO L85 PathProgramCache]: Analyzing trace with hash 324438969, now seen corresponding path program 1 times [2024-11-27 23:16:38,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:16:38,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845961167] [2024-11-27 23:16:38,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:16:38,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:16:38,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:16:38,519 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:16:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:16:38,542 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:16:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:16:39,223 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:16:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:16:39,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 11:16:39 BoogieIcfgContainer [2024-11-27 23:16:39,257 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 23:16:39,258 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:16:39,258 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:16:39,258 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:16:39,259 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:16:38" (3/4) ... [2024-11-27 23:16:39,262 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 23:16:39,292 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:16:39,293 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:16:39,294 INFO L158 Benchmark]: Toolchain (without parser) took 1680.51ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 83.6MB in the end (delta: 9.4MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2024-11-27 23:16:39,295 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 73.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:16:39,295 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.40ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 82.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:16:39,296 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.76ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.9MB in the end (delta: 857.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:16:39,296 INFO L158 Benchmark]: Boogie Preprocessor took 31.28ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:16:39,296 INFO L158 Benchmark]: RCFGBuilder took 297.48ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 70.9MB in the end (delta: 9.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:16:39,297 INFO L158 Benchmark]: BuchiAutomizer took 1073.86ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 85.5MB in the end (delta: -14.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:16:39,297 INFO L158 Benchmark]: Witness Printer took 34.75ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 83.6MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:16:39,299 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 73.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 211.40ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 82.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.76ms. Allocated memory is still 117.4MB. Free memory was 82.7MB in the beginning and 81.9MB in the end (delta: 857.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 31.28ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 297.48ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 70.9MB in the end (delta: 9.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 1073.86ms. Allocated memory is still 117.4MB. Free memory was 70.9MB in the beginning and 85.5MB in the end (delta: -14.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 34.75ms. Allocated memory is still 117.4MB. Free memory was 85.5MB in the beginning and 83.6MB in the end (delta: 2.0MB). 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 0.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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! [2024-11-27 23:16:39,319 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_029f6a22-b427-4e66-afc3-fae49a577368/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)