./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 9bd2c7ff
Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu --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 0.2.3-dev-9bd2c7f
[2023-11-19 07:53:33,174 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:53:33,272 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf
[2023-11-19 07:53:33,277 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:53:33,278 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:53:33,305 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:53:33,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:53:33,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:53:33,308 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:53:33,308 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:53:33,309 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:53:33,310 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2023-11-19 07:53:33,310 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2023-11-19 07:53:33,311 INFO L153 SettingsManager]: * Use old map elimination=false
[2023-11-19 07:53:33,311 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false
[2023-11-19 07:53:33,312 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true
[2023-11-19 07:53:33,312 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2023-11-19 07:53:33,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:53:33,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2023-11-19 07:53:33,314 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:53:33,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:53:33,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2023-11-19 07:53:33,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2023-11-19 07:53:33,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2023-11-19 07:53:33,317 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:53:33,318 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:53:33,319 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false
[2023-11-19 07:53:33,319 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:53:33,320 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:53:33,320 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:53:33,321 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:53:33,322 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:53:33,323 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2023-11-19 07:53:33,323 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46affb860f1d0d7b6656a3074088d89f6e139022ec85b08907ba16419f351bb9
[2023-11-19 07:53:33,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:53:33,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:53:33,579 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:53:33,580 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:53:33,581 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:53:33,582 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted/Binary_Search-2.c
[2023-11-19 07:53:36,654 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:53:36,907 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:53:36,908 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/sv-benchmarks/c/termination-crafted/Binary_Search-2.c
[2023-11-19 07:53:36,914 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/data/879c8082e/abc14e89330b4535a6abf330efb1a8c2/FLAGebe6f42a8
[2023-11-19 07:53:36,933 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/data/879c8082e/abc14e89330b4535a6abf330efb1a8c2
[2023-11-19 07:53:36,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:53:36,943 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:53:36,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:53:36,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:53:36,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:53:36,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:36" (1/1) ...
[2023-11-19 07:53:36,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a3bae43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:36, skipping insertion in model container
[2023-11-19 07:53:36,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:53:36" (1/1) ...
[2023-11-19 07:53:36,970 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:53:37,111 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:53:37,116 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:53:37,127 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:53:37,141 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:53:37,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37 WrapperNode
[2023-11-19 07:53:37,141 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:53:37,142 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:53:37,143 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:53:37,143 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:53:37,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,154 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,171 INFO L138 Inliner]: procedures = 5, calls = 5, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 16
[2023-11-19 07:53:37,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:53:37,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:53:37,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:53:37,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:53:37,181 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,182 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,182 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,184 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,186 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,187 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:53:37,189 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:53:37,190 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:53:37,190 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:53:37,190 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (1/1) ...
[2023-11-19 07:53:37,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:53:37,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:53:37,220 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:53:37,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:53:37,271 INFO L130 BoogieDeclarations]: Found specification of procedure binary_search
[2023-11-19 07:53:37,272 INFO L138 BoogieDeclarations]: Found implementation of procedure binary_search
[2023-11-19 07:53:37,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:53:37,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:53:37,342 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:53:37,344 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:53:37,457 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:53:37,465 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:53:37,465 INFO L302 CfgBuilder]: Removed 0 assume(true) statements.
[2023-11-19 07:53:37,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:37 BoogieIcfgContainer
[2023-11-19 07:53:37,469 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:53:37,470 INFO L112 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2023-11-19 07:53:37,470 INFO L270 PluginConnector]: Initializing BuchiAutomizer...
[2023-11-19 07:53:37,474 INFO L274 PluginConnector]: BuchiAutomizer initialized
[2023-11-19 07:53:37,475 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 07:53:37,475 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:53:36" (1/3) ...
[2023-11-19 07:53:37,476 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2566125d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:53:37, skipping insertion in model container
[2023-11-19 07:53:37,476 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 07:53:37,476 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:53:37" (2/3) ...
[2023-11-19 07:53:37,477 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2566125d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:53:37, skipping insertion in model container
[2023-11-19 07:53:37,477 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 07:53:37,477 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:37" (3/3) ...
[2023-11-19 07:53:37,478 INFO L332 chiAutomizerObserver]: Analyzing ICFG Binary_Search-2.c
[2023-11-19 07:53:37,530 INFO L303 stractBuchiCegarLoop]: Interprodecural is true
[2023-11-19 07:53:37,530 INFO L304 stractBuchiCegarLoop]: Hoare is false
[2023-11-19 07:53:37,530 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2023-11-19 07:53:37,530 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2023-11-19 07:53:37,531 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2023-11-19 07:53:37,531 INFO L308 stractBuchiCegarLoop]: Difference is false
[2023-11-19 07:53:37,531 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2023-11-19 07:53:37,531 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2023-11-19 07:53:37,535 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)
[2023-11-19 07:53:37,552 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2023-11-19 07:53:37,553 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 07:53:37,553 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 07:53:37,559 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1]
[2023-11-19 07:53:37,559 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2023-11-19 07:53:37,559 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2023-11-19 07:53:37,559 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)
[2023-11-19 07:53:37,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5
[2023-11-19 07:53:37,563 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 07:53:37,563 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 07:53:37,563 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1]
[2023-11-19 07:53:37,564 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1]
[2023-11-19 07:53:37,570 INFO L748 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
[2023-11-19 07:53:37,570 INFO L750 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
[2023-11-19 07:53:37,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash 42056124, now seen corresponding path program 1 times
[2023-11-19 07:53:37,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:37,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624637064]
[2023-11-19 07:53:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:37,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:53:37,675 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:53:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:53:37,698 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:53:37,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:37,701 INFO L85 PathProgramCache]: Analyzing trace with hash 927614, now seen corresponding path program 1 times
[2023-11-19 07:53:37,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:37,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143383107]
[2023-11-19 07:53:37,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:37,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:53:37,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:53:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:53:37,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:53:37,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:53:37,735 INFO L85 PathProgramCache]: Analyzing trace with hash 324438969, now seen corresponding path program 1 times
[2023-11-19 07:53:37,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:53:37,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388892687]
[2023-11-19 07:53:37,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:53:37,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:53:37,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:53:37,768 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:53:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:53:37,793 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:53:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:53:38,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:53:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:53:38,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:53:38 BoogieIcfgContainer
[2023-11-19 07:53:38,474 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2023-11-19 07:53:38,475 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:53:38,475 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:53:38,475 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:53:38,476 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:53:37" (3/4) ...
[2023-11-19 07:53:38,477 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample
[2023-11-19 07:53:38,515 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:53:38,515 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:53:38,517 INFO L158 Benchmark]: Toolchain (without parser) took 1573.32ms. Allocated memory is still 151.0MB. Free memory was 121.6MB in the beginning and 97.6MB in the end (delta: 24.1MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB.
[2023-11-19 07:53:38,517 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:53:38,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 197.66ms. Allocated memory is still 151.0MB. Free memory was 121.4MB in the beginning and 112.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
[2023-11-19 07:53:38,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.80ms. Allocated memory is still 151.0MB. Free memory was 112.1MB in the beginning and 110.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:53:38,519 INFO L158 Benchmark]: Boogie Preprocessor took 17.04ms. Allocated memory is still 151.0MB. Free memory was 110.6MB in the beginning and 109.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:53:38,520 INFO L158 Benchmark]: RCFGBuilder took 279.49ms. Allocated memory is still 151.0MB. Free memory was 109.6MB in the beginning and 100.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2023-11-19 07:53:38,521 INFO L158 Benchmark]: BuchiAutomizer took 1004.41ms. Allocated memory is still 151.0MB. Free memory was 100.1MB in the beginning and 99.6MB in the end (delta: 448.2kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB.
[2023-11-19 07:53:38,521 INFO L158 Benchmark]: Witness Printer took 40.32ms. Allocated memory is still 151.0MB. Free memory was 99.6MB in the beginning and 97.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:53:38,525 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.29ms. Allocated memory is still 151.0MB. Free memory is still 111.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 197.66ms. Allocated memory is still 151.0MB. Free memory was 121.4MB in the beginning and 112.1MB in the end (delta: 9.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 28.80ms. Allocated memory is still 151.0MB. Free memory was 112.1MB in the beginning and 110.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB.
* Boogie Preprocessor took 17.04ms. Allocated memory is still 151.0MB. Free memory was 110.6MB in the beginning and 109.6MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 279.49ms. Allocated memory is still 151.0MB. Free memory was 109.6MB in the beginning and 100.1MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* BuchiAutomizer took 1004.41ms. Allocated memory is still 151.0MB. Free memory was 100.1MB in the beginning and 99.6MB in the end (delta: 448.2kB). Peak memory consumption was 1.8MB. Max. memory is 16.1GB.
* Witness Printer took 40.32ms. Allocated memory is still 151.0MB. Free memory was 99.6MB in the beginning and 97.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Constructed decomposition of program
Trivial decomposition into one nonterminating module.
- StatisticsResult: Timing statistics
BüchiAutomizer plugin needed 0.9s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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!
[2023-11-19 07:53:38,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bbef92eb-609e-47fd-9089-09f4873c85b2/bin/uautomizer-verify-uCwYo4JHxu/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)