./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/WhileTrue.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/WhileTrue.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1 --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 2c915ce64f8b11abacbd175f69c99f9afd8b2edc1142f6db1504c1dcc6414eb1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:09:44,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:09:44,302 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 08:09:44,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:09:44,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:09:44,325 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:09:44,325 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:09:44,326 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:09:44,326 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:09:44,326 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:09:44,326 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:09:44,326 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:09:44,326 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:09:44,327 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 08:09:44,327 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 08:09:44,327 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 08:09:44,327 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 08:09:44,327 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 08:09:44,327 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 08:09:44,327 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:09:44,327 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 08:09:44,327 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:09:44,327 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:09:44,328 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 08:09:44,328 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 08:09:44,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 08:09:44,328 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 08:09:44,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:09:44,328 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 08:09:44,328 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:09:44,328 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:09:44,328 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:09:44,328 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:09:44,329 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:09:44,329 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 08:09:44,329 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 08:09:44,329 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1 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 -> 2c915ce64f8b11abacbd175f69c99f9afd8b2edc1142f6db1504c1dcc6414eb1 [2024-12-02 08:09:44,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:09:44,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:09:44,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:09:44,577 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:09:44,578 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:09:44,579 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted/WhileTrue.c [2024-12-02 08:09:47,198 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/data/59807e5ad/1b44c8fd59914a3f95a7064a72f7df78/FLAGfa3e7f98b [2024-12-02 08:09:47,399 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:09:47,399 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/sv-benchmarks/c/termination-crafted/WhileTrue.c [2024-12-02 08:09:47,406 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/data/59807e5ad/1b44c8fd59914a3f95a7064a72f7df78/FLAGfa3e7f98b [2024-12-02 08:09:47,785 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/data/59807e5ad/1b44c8fd59914a3f95a7064a72f7df78 [2024-12-02 08:09:47,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:09:47,788 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:09:47,789 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:09:47,790 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:09:47,793 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:09:47,794 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,794 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f43a2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47, skipping insertion in model container [2024-12-02 08:09:47,795 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,805 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:09:47,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:09:47,900 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:09:47,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:09:47,916 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:09:47,916 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47 WrapperNode [2024-12-02 08:09:47,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:09:47,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:09:47,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:09:47,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:09:47,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,924 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,934 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 7 [2024-12-02 08:09:47,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:09:47,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:09:47,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:09:47,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:09:47,940 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,944 INFO L175 MemorySlicer]: No memory access in input program. [2024-12-02 08:09:47,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,945 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,946 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,949 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,949 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,949 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:09:47,951 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:09:47,951 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:09:47,951 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:09:47,952 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (1/1) ... [2024-12-02 08:09:47,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 08:09:47,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:09:47,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 08:09:47,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 08:09:48,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:09:48,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:09:48,059 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:09:48,060 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:09:48,091 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2024-12-02 08:09:48,091 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:09:48,099 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:09:48,099 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:09:48,099 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:09:48 BoogieIcfgContainer [2024-12-02 08:09:48,099 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:09:48,100 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 08:09:48,100 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 08:09:48,106 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 08:09:48,106 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:09:48,106 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 08:09:47" (1/3) ... [2024-12-02 08:09:48,107 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1513a633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:09:48, skipping insertion in model container [2024-12-02 08:09:48,107 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:09:48,107 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:09:47" (2/3) ... [2024-12-02 08:09:48,108 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1513a633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 08:09:48, skipping insertion in model container [2024-12-02 08:09:48,108 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 08:09:48,108 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:09:48" (3/3) ... [2024-12-02 08:09:48,109 INFO L363 chiAutomizerObserver]: Analyzing ICFG WhileTrue.c [2024-12-02 08:09:48,151 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 08:09:48,151 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 08:09:48,151 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 08:09:48,151 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 08:09:48,151 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 08:09:48,151 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 08:09:48,152 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 08:09:48,152 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 08:09:48,156 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) [2024-12-02 08:09:48,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-12-02 08:09:48,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:09:48,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:09:48,171 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 08:09:48,171 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-12-02 08:09:48,171 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 08:09:48,171 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) [2024-12-02 08:09:48,172 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2024-12-02 08:09:48,172 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 08:09:48,172 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 08:09:48,172 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 08:09:48,172 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2024-12-02 08:09:48,177 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;" [2024-12-02 08:09:48,177 INFO L749 eck$LassoCheckResult]: Loop: "assume true;" [2024-12-02 08:09:48,181 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:09:48,182 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-12-02 08:09:48,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:09:48,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935831259] [2024-12-02 08:09:48,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:09:48,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:09:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:09:48,245 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:09:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:09:48,259 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:09:48,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:09:48,262 INFO L85 PathProgramCache]: Analyzing trace with hash 49, now seen corresponding path program 1 times [2024-12-02 08:09:48,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:09:48,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598424259] [2024-12-02 08:09:48,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:09:48,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:09:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:09:48,266 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:09:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:09:48,268 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:09:48,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:09:48,269 INFO L85 PathProgramCache]: Analyzing trace with hash 29871, now seen corresponding path program 1 times [2024-12-02 08:09:48,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 08:09:48,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197340375] [2024-12-02 08:09:48,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:09:48,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:09:48,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:09:48,274 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:09:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:09:48,276 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 08:09:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:09:48,310 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 08:09:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 08:09:48,325 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-12-02 08:09:48,325 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-12-02 08:09:48,327 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-12-02 08:09:48,327 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-12-02 08:09:48,328 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-12-02 08:09:48,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 08:09:48 BoogieIcfgContainer [2024-12-02 08:09:48,328 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 08:09:48,329 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 08:09:48,329 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 08:09:48,329 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 08:09:48,329 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:09:48" (3/4) ... [2024-12-02 08:09:48,331 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 08:09:48,332 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-12-02 08:09:48,332 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2024-12-02 08:09:48,332 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: The program execution was not completely translated back. [2024-12-02 08:09:48,336 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.witnessprinter has thrown an exception: java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0 at java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:100) at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Preconditions.java:106) at java.base/jdk.internal.util.Preconditions.checkIndex(Preconditions.java:302) at java.base/java.util.Objects.checkIndex(Objects.java:385) at java.base/java.util.ArrayList.get(ArrayList.java:427) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSLProgramExecution.getTraceElement(CACSLProgramExecution.java:83) at de.uni_freiburg.informatik.ultimate.witnessprinter.graphml.GraphMLViolationWitnessGenerator.<init>(GraphMLViolationWitnessGenerator.java:89) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.getWitness(WitnessPrinter.java:239) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.generateNonTerminationWitness(WitnessPrinter.java:224) at de.uni_freiburg.informatik.ultimate.witnessprinter.WitnessPrinter.finish(WitnessPrinter.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:130) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-12-02 08:09:48,341 INFO L158 Benchmark]: Toolchain (without parser) took 551.75ms. Allocated memory is still 117.4MB. Free memory was 94.0MB in the beginning and 61.8MB in the end (delta: 32.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 08:09:48,341 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:09:48,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 127.36ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 84.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:09:48,342 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.90ms. Allocated memory is still 117.4MB. Free memory was 84.1MB in the beginning and 83.3MB in the end (delta: 851.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:09:48,342 INFO L158 Benchmark]: Boogie Preprocessor took 15.88ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.3MB in the end (delta: 949.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:09:48,342 INFO L158 Benchmark]: RCFGBuilder took 148.47ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 74.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:09:48,342 INFO L158 Benchmark]: BuchiAutomizer took 227.89ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 62.7MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:09:48,343 INFO L158 Benchmark]: Witness Printer took 10.68ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 61.8MB in the end (delta: 864.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:09:48,344 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 127.36ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 84.1MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 16.90ms. Allocated memory is still 117.4MB. Free memory was 84.1MB in the beginning and 83.3MB in the end (delta: 851.0kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.88ms. Allocated memory is still 117.4MB. Free memory was 83.3MB in the beginning and 82.3MB in the end (delta: 949.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 148.47ms. Allocated memory is still 117.4MB. Free memory was 82.3MB in the beginning and 74.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 227.89ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 62.7MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 10.68ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 61.8MB in the end (delta: 864.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: The program execution was not completely translated back. * 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 0.1s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.1s. 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: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: Loop: End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 13]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: Loop: End of lasso representation. * Results from de.uni_freiburg.informatik.ultimate.witnessprinter: - ExceptionOrErrorResult: IndexOutOfBoundsException: Index 0 out of bounds for length 0 de.uni_freiburg.informatik.ultimate.witnessprinter: IndexOutOfBoundsException: Index 0 out of bounds for length 0: java.base/jdk.internal.util.Preconditions.outOfBounds(Preconditions.java:100) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2024-12-02 08:09:48,358 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/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 Using bit-precise analysis No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e03010ca-151e-4853-b450-5e534b9843a5/bin/uautomizer-verify-84ZbGMXZE1/config using search string *Termination*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IndexOutOfBoundsException: Index 0 out of bounds for length 0