./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-nla/divbin1-both-nt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-nla/divbin1-both-nt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU --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 32bit --witnessprinter.graph.data.programhash 34d019f936433212ffb98f9f63454a8763bb76cd95f2f69226ba6fae3efa4715 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 22:14:18,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:14:18,261 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-31 22:14:18,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:14:18,272 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:14:18,306 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:14:18,306 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:14:18,307 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:14:18,308 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:14:18,308 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:14:18,310 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:14:18,311 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:14:18,311 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:14:18,314 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 22:14:18,315 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 22:14:18,315 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 22:14:18,316 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 22:14:18,319 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 22:14:18,320 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 22:14:18,320 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:14:18,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 22:14:18,322 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-31 22:14:18,322 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:14:18,324 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-31 22:14:18,324 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:14:18,325 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 22:14:18,325 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 22:14:18,326 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 22:14:18,326 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:14:18,326 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 22:14:18,327 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-31 22:14:18,327 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:14:18,327 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 22:14:18,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:14:18,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:14:18,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:14:18,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:14:18,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:14:18,330 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 22:14:18,331 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_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34d019f936433212ffb98f9f63454a8763bb76cd95f2f69226ba6fae3efa4715 [2024-10-31 22:14:18,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:14:18,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:14:18,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:14:18,729 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:14:18,729 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:14:18,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-nla/divbin1-both-nt.i Unable to find full path for "g++" [2024-10-31 22:14:21,120 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:14:21,300 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:14:21,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/sv-benchmarks/c/termination-nla/divbin1-both-nt.i [2024-10-31 22:14:21,307 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/data/a013236b2/5680ace0bf80482a98546ae0ae0da3f2/FLAG65b821c74 [2024-10-31 22:14:21,705 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/data/a013236b2/5680ace0bf80482a98546ae0ae0da3f2 [2024-10-31 22:14:21,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:14:21,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:14:21,711 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:21,711 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:14:21,717 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:14:21,717 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:21,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52c333d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21, skipping insertion in model container [2024-10-31 22:14:21,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:21,743 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:14:21,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:21,934 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:14:21,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:14:21,966 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:14:21,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21 WrapperNode [2024-10-31 22:14:21,966 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:14:21,967 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:21,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:14:21,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:14:21,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:21,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:21,999 INFO L138 Inliner]: procedures = 5, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 38 [2024-10-31 22:14:22,000 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:14:22,000 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:14:22,001 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:14:22,001 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:14:22,014 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:22,015 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:22,016 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:22,025 INFO L175 MemorySlicer]: No memory access in input program. [2024-10-31 22:14:22,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:22,026 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:22,030 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:22,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:22,036 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:22,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:22,043 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:14:22,044 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:14:22,044 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:14:22,044 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:14:22,049 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (1/1) ... [2024-10-31 22:14:22,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:14:22,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:22,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:14:22,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 22:14:22,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:14:22,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:14:22,174 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:14:22,176 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:14:22,318 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-31 22:14:22,319 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:14:22,332 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:14:22,332 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-31 22:14:22,333 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:22 BoogieIcfgContainer [2024-10-31 22:14:22,333 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:14:22,334 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 22:14:22,334 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 22:14:22,341 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 22:14:22,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:14:22,342 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 10:14:21" (1/3) ... [2024-10-31 22:14:22,344 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9febf71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:14:22, skipping insertion in model container [2024-10-31 22:14:22,344 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:14:22,344 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:14:21" (2/3) ... [2024-10-31 22:14:22,345 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@9febf71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 10:14:22, skipping insertion in model container [2024-10-31 22:14:22,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 22:14:22,345 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:22" (3/3) ... [2024-10-31 22:14:22,347 INFO L332 chiAutomizerObserver]: Analyzing ICFG divbin1-both-nt.i [2024-10-31 22:14:22,423 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 22:14:22,423 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 22:14:22,423 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 22:14:22,424 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 22:14:22,424 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 22:14:22,424 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 22:14:22,424 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 22:14:22,425 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 22:14:22,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2024-10-31 22:14:22,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:14:22,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:22,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:22,457 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:14:22,458 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:14:22,458 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 22:14:22,458 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 13 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 12 states have internal predecessors, (20), 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) [2024-10-31 22:14:22,460 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-10-31 22:14:22,462 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:14:22,462 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:14:22,463 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2024-10-31 22:14:22,463 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-31 22:14:22,472 INFO L745 eck$LassoCheckResult]: Stem: 11#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~A~0#1, main_~B~0#1, main_~q~0#1, main_~r~0#1, main_~b~0#1;havoc main_~A~0#1;havoc main_~B~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~b~0#1;havoc main_#t~nondet0#1;main_~A~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;havoc main_#t~nondet1#1;main_~B~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 4#L15true assume !(main_~B~0#1 % 4294967296 >= 2147483647); 2#L16true assume !(main_~B~0#1 % 4294967296 < 1); 8#L17true assume !(main_~A~0#1 % 4294967296 >= 2147483647);main_~q~0#1 := 0;main_~r~0#1 := main_~A~0#1;main_~b~0#1 := main_~B~0#1; 10#L21true assume main_~r~0#1 % 4294967296 < main_~b~0#1 % 4294967296; 7#L23-1true [2024-10-31 22:14:22,472 INFO L747 eck$LassoCheckResult]: Loop: 7#L23-1true assume !!(main_~A~0#1 % 4294967296 == (main_~q~0#1 * main_~b~0#1 + main_~r~0#1) % 4294967296); 12#L23true assume !(2 * (main_~b~0#1 % 4294967296 / 2) % 4294967296 == main_~b~0#1 % 4294967296); 7#L23-1true [2024-10-31 22:14:22,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:22,481 INFO L85 PathProgramCache]: Analyzing trace with hash 889571339, now seen corresponding path program 1 times [2024-10-31 22:14:22,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:22,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807457439] [2024-10-31 22:14:22,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:22,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:22,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:22,640 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:22,684 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:22,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:22,689 INFO L85 PathProgramCache]: Analyzing trace with hash 1900, now seen corresponding path program 1 times [2024-10-31 22:14:22,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:22,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625089260] [2024-10-31 22:14:22,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:22,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:14:22,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2020553527] [2024-10-31 22:14:22,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:22,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:22,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:22,733 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:22,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-31 22:14:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:22,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:22,814 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:22,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:14:22,816 INFO L85 PathProgramCache]: Analyzing trace with hash 179565814, now seen corresponding path program 1 times [2024-10-31 22:14:22,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:14:22,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093855671] [2024-10-31 22:14:22,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:22,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:14:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-31 22:14:22,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [285404369] [2024-10-31 22:14:22,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:14:22,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:14:22,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:14:22,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:14:22,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-31 22:14:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:22,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:22,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:14:23,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:23,269 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:14:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:14:23,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 31.10 10:14:23 BoogieIcfgContainer [2024-10-31 22:14:23,304 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-31 22:14:23,305 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-31 22:14:23,305 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-31 22:14:23,305 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-31 22:14:23,306 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:14:22" (3/4) ... [2024-10-31 22:14:23,308 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-31 22:14:23,338 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/witness.graphml [2024-10-31 22:14:23,338 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-31 22:14:23,339 INFO L158 Benchmark]: Toolchain (without parser) took 1629.78ms. Allocated memory is still 195.0MB. Free memory was 154.5MB in the beginning and 151.6MB in the end (delta: 2.9MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-10-31 22:14:23,340 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 125.8MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:14:23,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.04ms. Allocated memory is still 195.0MB. Free memory was 154.1MB in the beginning and 142.8MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-31 22:14:23,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.38ms. Allocated memory is still 195.0MB. Free memory was 142.8MB in the beginning and 141.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:14:23,342 INFO L158 Benchmark]: Boogie Preprocessor took 42.46ms. Allocated memory is still 195.0MB. Free memory was 141.1MB in the beginning and 139.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:14:23,343 INFO L158 Benchmark]: RCFGBuilder took 289.58ms. Allocated memory is still 195.0MB. Free memory was 139.8MB in the beginning and 129.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-31 22:14:23,343 INFO L158 Benchmark]: BuchiAutomizer took 970.10ms. Allocated memory is still 195.0MB. Free memory was 129.4MB in the beginning and 153.7MB in the end (delta: -24.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-31 22:14:23,344 INFO L158 Benchmark]: Witness Printer took 33.25ms. Allocated memory is still 195.0MB. Free memory was 153.7MB in the beginning and 151.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-31 22:14:23,347 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 125.8MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.04ms. Allocated memory is still 195.0MB. Free memory was 154.1MB in the beginning and 142.8MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.38ms. Allocated memory is still 195.0MB. Free memory was 142.8MB in the beginning and 141.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.46ms. Allocated memory is still 195.0MB. Free memory was 141.1MB in the beginning and 139.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 289.58ms. Allocated memory is still 195.0MB. Free memory was 139.8MB in the beginning and 129.4MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 970.10ms. Allocated memory is still 195.0MB. Free memory was 129.4MB in the beginning and 153.7MB in the end (delta: -24.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 33.25ms. Allocated memory is still 195.0MB. Free memory was 153.7MB in the beginning and 151.6MB 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 0.8s 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: 22]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L11] unsigned A, B; [L12] unsigned q, r, b; [L13] A = __VERIFIER_nondet_unsigned_int() [L14] B = __VERIFIER_nondet_unsigned_int() [L15] COND FALSE !(B >= (0x7fffffff * 2U + 1U)/2) VAL [B=8589934593] [L16] COND FALSE !(B < 1) VAL [B=8589934593] [L17] COND FALSE !(A >= (0x7fffffff * 2U + 1U)/2) [L18] q = 0 [L19] r = A [L20] b = B VAL [A=0, b=8589934593, q=0, r=0] [L21] COND TRUE r < b VAL [A=0, b=8589934593, q=0, r=0] Loop: [L22] COND TRUE A == q * b + r [L23] COND FALSE !(2 * (b / 2) == b) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 22]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] unsigned A, B; [L12] unsigned q, r, b; [L13] A = __VERIFIER_nondet_unsigned_int() [L14] B = __VERIFIER_nondet_unsigned_int() [L15] COND FALSE !(B >= (0x7fffffff * 2U + 1U)/2) VAL [B=8589934593] [L16] COND FALSE !(B < 1) VAL [B=8589934593] [L17] COND FALSE !(A >= (0x7fffffff * 2U + 1U)/2) [L18] q = 0 [L19] r = A [L20] b = B VAL [A=0, b=8589934593, q=0, r=0] [L21] COND TRUE r < b VAL [A=0, b=8589934593, q=0, r=0] Loop: [L22] COND TRUE A == q * b + r [L23] COND FALSE !(2 * (b / 2) == b) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-31 22:14:23,377 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-31 22:14:23,573 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-31 22:14:23,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fdd4cf7d-50da-4350-970e-d5e0858c2e7d/bin/uautomizer-verify-4GaUIPS5ZU/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)