./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Division-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_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/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_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Division-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/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_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/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 bcd985be4d5b056143625ede780ed1bdcfd1a69390fda6644aa25539fa51e5a7
--- Real Ultimate output ---
This is Ultimate 0.2.3-dev-9bd2c7f
[2023-11-19 07:39:19,715 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-11-19 07:39:19,859 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Termination-64bit-Automizer_Default.epf
[2023-11-19 07:39:19,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-11-19 07:39:19,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-11-19 07:39:19,919 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-11-19 07:39:19,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-11-19 07:39:19,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-11-19 07:39:19,923 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-11-19 07:39:19,930 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-11-19 07:39:19,931 INFO L153 SettingsManager]: * Use SBE=true
[2023-11-19 07:39:19,932 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults:
[2023-11-19 07:39:19,933 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3
[2023-11-19 07:39:19,935 INFO L153 SettingsManager]: * Use old map elimination=false
[2023-11-19 07:39:19,936 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false
[2023-11-19 07:39:19,936 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true
[2023-11-19 07:39:19,937 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES
[2023-11-19 07:39:19,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-11-19 07:39:19,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME
[2023-11-19 07:39:19,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-11-19 07:39:19,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-11-19 07:39:19,941 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME
[2023-11-19 07:39:19,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME
[2023-11-19 07:39:19,942 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME
[2023-11-19 07:39:19,943 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false
[2023-11-19 07:39:19,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-11-19 07:39:19,944 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false
[2023-11-19 07:39:19,944 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-11-19 07:39:19,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-11-19 07:39:19,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-11-19 07:39:19,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-11-19 07:39:19,948 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-11-19 07:39:19,949 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults:
[2023-11-19 07:39:19,949 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_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bcd985be4d5b056143625ede780ed1bdcfd1a69390fda6644aa25539fa51e5a7
[2023-11-19 07:39:20,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-11-19 07:39:20,375 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-11-19 07:39:20,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-11-19 07:39:20,380 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-11-19 07:39:20,381 INFO L274 PluginConnector]: CDTParser initialized
[2023-11-19 07:39:20,383 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/termination-crafted/Division-2.c
[2023-11-19 07:39:23,732 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-11-19 07:39:23,977 INFO L384 CDTParser]: Found 1 translation units.
[2023-11-19 07:39:23,977 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/sv-benchmarks/c/termination-crafted/Division-2.c
[2023-11-19 07:39:23,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/data/e33cd1f93/a5a0decff53f4173a0f2cc8c59abbecf/FLAGa1f1470b0
[2023-11-19 07:39:24,018 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/data/e33cd1f93/a5a0decff53f4173a0f2cc8c59abbecf
[2023-11-19 07:39:24,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-11-19 07:39:24,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements.
[2023-11-19 07:39:24,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-11-19 07:39:24,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-11-19 07:39:24,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-11-19 07:39:24,041 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@143b9664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24, skipping insertion in model container
[2023-11-19 07:39:24,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,069 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-11-19 07:39:24,299 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:39:24,308 INFO L202 MainTranslator]: Completed pre-run
[2023-11-19 07:39:24,326 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-11-19 07:39:24,345 INFO L206 MainTranslator]: Completed translation
[2023-11-19 07:39:24,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24 WrapperNode
[2023-11-19 07:39:24,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-11-19 07:39:24,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-11-19 07:39:24,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-11-19 07:39:24,347 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-11-19 07:39:24,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,363 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,383 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 12
[2023-11-19 07:39:24,383 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-11-19 07:39:24,384 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-11-19 07:39:24,384 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-11-19 07:39:24,385 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-11-19 07:39:24,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,396 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,411 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,412 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,413 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-11-19 07:39:24,414 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-11-19 07:39:24,415 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-11-19 07:39:24,415 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-11-19 07:39:24,416 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (1/1) ...
[2023-11-19 07:39:24,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000
[2023-11-19 07:39:24,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/z3
[2023-11-19 07:39:24,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null)
[2023-11-19 07:39:24,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process
[2023-11-19 07:39:24,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-11-19 07:39:24,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-11-19 07:39:24,566 INFO L236 CfgBuilder]: Building ICFG
[2023-11-19 07:39:24,569 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-11-19 07:39:24,658 INFO L277 CfgBuilder]: Performing block encoding
[2023-11-19 07:39:24,666 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-11-19 07:39:24,666 INFO L302 CfgBuilder]: Removed 1 assume(true) statements.
[2023-11-19 07:39:24,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:24 BoogieIcfgContainer
[2023-11-19 07:39:24,671 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-11-19 07:39:24,672 INFO L112 PluginConnector]: ------------------------BuchiAutomizer----------------------------
[2023-11-19 07:39:24,672 INFO L270 PluginConnector]: Initializing BuchiAutomizer...
[2023-11-19 07:39:24,677 INFO L274 PluginConnector]: BuchiAutomizer initialized
[2023-11-19 07:39:24,678 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 07:39:24,678 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.11 07:39:24" (1/3) ...
[2023-11-19 07:39:24,680 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27be5c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:39:24, skipping insertion in model container
[2023-11-19 07:39:24,680 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 07:39:24,680 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:39:24" (2/3) ...
[2023-11-19 07:39:24,681 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@27be5c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.11 07:39:24, skipping insertion in model container
[2023-11-19 07:39:24,681 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis
[2023-11-19 07:39:24,681 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:24" (3/3) ...
[2023-11-19 07:39:24,683 INFO L332 chiAutomizerObserver]: Analyzing ICFG Division-2.c
[2023-11-19 07:39:24,753 INFO L303 stractBuchiCegarLoop]: Interprodecural is true
[2023-11-19 07:39:24,753 INFO L304 stractBuchiCegarLoop]: Hoare is false
[2023-11-19 07:39:24,754 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates
[2023-11-19 07:39:24,754 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE
[2023-11-19 07:39:24,754 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2023-11-19 07:39:24,754 INFO L308 stractBuchiCegarLoop]: Difference is false
[2023-11-19 07:39:24,755 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA
[2023-11-19 07:39:24,755 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ========
[2023-11-19 07:39:24,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:24,781 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2023-11-19 07:39:24,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 07:39:24,782 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 07:39:24,790 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2023-11-19 07:39:24,790 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1]
[2023-11-19 07:39:24,790 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============
[2023-11-19 07:39:24,792 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2023-11-19 07:39:24,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1
[2023-11-19 07:39:24,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false
[2023-11-19 07:39:24,795 INFO L119 BuchiIsEmpty]: Starting construction of run
[2023-11-19 07:39:24,796 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1]
[2023-11-19 07:39:24,796 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1]
[2023-11-19 07:39:24,809 INFO L748 eck$LassoCheckResult]: Stem: 4#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 5#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~y~0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1; 6#L14-2true
[2023-11-19 07:39:24,809 INFO L750 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(main_~y~0#1 >= 0 && main_~y~0#1 <= 10);main_~y~0#1 := (if 1 + 2 * main_~y~0#1 < 0 && 0 != (1 + 2 * main_~y~0#1) % 2 then 1 + (1 + 2 * main_~y~0#1) / 2 else (1 + 2 * main_~y~0#1) / 2); 6#L14-2true
[2023-11-19 07:39:24,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:24,817 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times
[2023-11-19 07:39:24,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:24,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010185416]
[2023-11-19 07:39:24,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:24,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:24,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:24,937 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:24,974 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:24,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:24,979 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times
[2023-11-19 07:39:24,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:24,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130263596]
[2023-11-19 07:39:24,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:24,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:25,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:25,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:25,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:25,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:25,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-11-19 07:39:25,053 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times
[2023-11-19 07:39:25,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-11-19 07:39:25,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120869764]
[2023-11-19 07:39:25,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-11-19 07:39:25,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-11-19 07:39:25,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:25,064 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:25,090 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2023-11-19 07:39:25,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:25,279 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2023-11-19 07:39:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2023-11-19 07:39:25,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.11 07:39:25 BoogieIcfgContainer
[2023-11-19 07:39:25,308 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer----------------------------
[2023-11-19 07:39:25,309 INFO L112 PluginConnector]: ------------------------Witness Printer----------------------------
[2023-11-19 07:39:25,309 INFO L270 PluginConnector]: Initializing Witness Printer...
[2023-11-19 07:39:25,309 INFO L274 PluginConnector]: Witness Printer initialized
[2023-11-19 07:39:25,310 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:39:24" (3/4) ...
[2023-11-19 07:39:25,312 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample
[2023-11-19 07:39:25,356 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/witness.graphml
[2023-11-19 07:39:25,356 INFO L131 PluginConnector]: ------------------------ END Witness Printer----------------------------
[2023-11-19 07:39:25,359 INFO L158 Benchmark]: Toolchain (without parser) took 1330.25ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 60.3MB in the end (delta: 38.4MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB.
[2023-11-19 07:39:25,361 INFO L158 Benchmark]: CDTParser took 0.65ms. Allocated memory is still 142.6MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:39:25,363 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.23ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 89.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2023-11-19 07:39:25,363 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.66ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 88.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:39:25,364 INFO L158 Benchmark]: Boogie Preprocessor took 29.04ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 87.5MB in the end (delta: 644.7kB). There was no memory consumed. Max. memory is 16.1GB.
[2023-11-19 07:39:25,365 INFO L158 Benchmark]: RCFGBuilder took 256.41ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 79.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
[2023-11-19 07:39:25,366 INFO L158 Benchmark]: BuchiAutomizer took 636.04ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 61.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
[2023-11-19 07:39:25,366 INFO L158 Benchmark]: Witness Printer took 48.51ms. Allocated memory is still 142.6MB. Free memory was 61.7MB in the beginning and 60.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2023-11-19 07:39:25,370 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.65ms. Allocated memory is still 142.6MB. Free memory is still 117.3MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 313.23ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 89.6MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 36.66ms. Allocated memory is still 142.6MB. Free memory was 89.6MB in the beginning and 88.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 29.04ms. Allocated memory is still 142.6MB. Free memory was 88.2MB in the beginning and 87.5MB in the end (delta: 644.7kB). There was no memory consumed. Max. memory is 16.1GB.
* RCFGBuilder took 256.41ms. Allocated memory is still 142.6MB. Free memory was 87.5MB in the beginning and 79.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB.
* BuchiAutomizer took 636.04ms. Allocated memory is still 142.6MB. Free memory was 78.5MB in the beginning and 61.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB.
* Witness Printer took 48.51ms. Allocated memory is still 142.6MB. Free memory was 61.7MB in the beginning and 60.3MB in the end (delta: 1.4MB). 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 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. 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: 14]: Nontermination argument in form of an infinite program execution.
Nontermination argument in form of an infinite program execution.
Stem:
[L13] int y = __VERIFIER_nondet_int();
Loop:
[L14] COND TRUE y >= 0 && y <= 10
[L15] y = (2*y + 1) / 2
End of lasso representation.
- StatisticsResult: NonterminationArgumentStatistics
Fixpoint
- NonterminatingLassoResult [Line: 14]: Nonterminating execution
Found a nonterminating execution for the following lasso shaped sequence of statements.
Stem:
[L13] int y = __VERIFIER_nondet_int();
Loop:
[L14] COND TRUE y >= 0 && y <= 10
[L15] y = (2*y + 1) / 2
End of lasso representation.
RESULT: Ultimate proved your program to be incorrect!
[2023-11-19 07:39:25,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b8aa149e-525f-4bb2-bbc0-ce3e563daf61/bin/uautomizer-verify-uCwYo4JHxu/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)