./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.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_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/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_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/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_9aa9ef11-8762-4585-beb6-160dc426cc47/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 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:06:36,120 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:06:36,176 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-12-02 06:06:36,180 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:06:36,181 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:06:36,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:06:36,202 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:06:36,203 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:06:36,203 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:06:36,203 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:06:36,203 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:06:36,203 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:06:36,203 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:06:36,204 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 06:06:36,204 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 06:06:36,204 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 06:06:36,204 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 06:06:36,204 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 06:06:36,204 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 06:06:36,204 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:06:36,204 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 06:06:36,204 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:06:36,204 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:06:36,204 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 06:06:36,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 06:06:36,205 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 06:06:36,205 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 06:06:36,205 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:06:36,205 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 06:06:36,205 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:06:36,205 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:06:36,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:06:36,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:06:36,205 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:06:36,205 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 06:06:36,206 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 06:06:36,206 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_9aa9ef11-8762-4585-beb6-160dc426cc47/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 -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2024-12-02 06:06:36,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:06:36,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:06:36,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:06:36,453 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:06:36,454 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:06:36,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2024-12-02 06:06:39,108 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/data/b04dd1884/1829d8c4758e40df952d1e91b345b628/FLAG523f7c9f6 [2024-12-02 06:06:39,296 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:06:39,296 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2024-12-02 06:06:39,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/data/b04dd1884/1829d8c4758e40df952d1e91b345b628/FLAG523f7c9f6 [2024-12-02 06:06:39,685 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/data/b04dd1884/1829d8c4758e40df952d1e91b345b628 [2024-12-02 06:06:39,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:06:39,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:06:39,689 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:06:39,689 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:06:39,692 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:06:39,692 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,693 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aaf286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39, skipping insertion in model container [2024-12-02 06:06:39,693 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,701 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:06:39,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:06:39,794 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:06:39,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:06:39,821 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:06:39,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39 WrapperNode [2024-12-02 06:06:39,822 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:06:39,823 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:06:39,823 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:06:39,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:06:39,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,841 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2024-12-02 06:06:39,841 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:06:39,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:06:39,842 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:06:39,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:06:39,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,849 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,858 INFO L175 MemorySlicer]: Split 5 memory accesses to 1 slices as follows [5]. 100 percent of accesses are in the largest equivalence class. The 0 initializations are split as follows [0]. The 3 writes are split as follows [3]. [2024-12-02 06:06:39,858 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,858 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,862 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,862 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,866 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:06:39,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:06:39,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:06:39,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:06:39,867 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (1/1) ... [2024-12-02 06:06:39,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:06:39,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:06:39,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:06:39,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 06:06:39,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 06:06:39,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:06:39,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:06:39,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 06:06:39,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 06:06:39,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 06:06:39,962 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:06:39,964 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:06:40,043 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2024-12-02 06:06:40,044 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:06:40,053 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:06:40,053 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 06:06:40,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:06:40 BoogieIcfgContainer [2024-12-02 06:06:40,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:06:40,055 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 06:06:40,055 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 06:06:40,061 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 06:06:40,061 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 06:06:40,062 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 06:06:39" (1/3) ... [2024-12-02 06:06:40,063 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10fcfafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 06:06:40, skipping insertion in model container [2024-12-02 06:06:40,063 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 06:06:40,063 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:06:39" (2/3) ... [2024-12-02 06:06:40,063 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@10fcfafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 06:06:40, skipping insertion in model container [2024-12-02 06:06:40,063 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 06:06:40,063 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:06:40" (3/3) ... [2024-12-02 06:06:40,064 INFO L363 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2024-12-02 06:06:40,118 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 06:06:40,118 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 06:06:40,119 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 06:06:40,119 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 06:06:40,119 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 06:06:40,119 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 06:06:40,119 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 06:06:40,119 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 06:06:40,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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 06:06:40,139 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 06:06:40,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:06:40,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:06:40,145 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 06:06:40,145 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 06:06:40,145 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 06:06:40,145 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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 06:06:40,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-12-02 06:06:40,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:06:40,146 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:06:40,147 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-12-02 06:06:40,147 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-12-02 06:06:40,154 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~mem1#1, main_#t~mem2#1, main_#t~nondet3#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);havoc main_#t~nondet0#1;call write~int#0(main_#t~nondet0#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet0#1;" [2024-12-02 06:06:40,154 INFO L749 eck$LassoCheckResult]: Loop: "call main_#t~mem1#1 := read~int#0(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);" "assume main_#t~mem1#1 >= 0;havoc main_#t~mem1#1;" "call main_#t~mem2#1 := read~int#0(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);call write~int#0(main_#t~mem2#1 - 1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~mem2#1;havoc main_#t~nondet3#1;call write~int#0(main_#t~nondet3#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet3#1;" [2024-12-02 06:06:40,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:40,160 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-12-02 06:06:40,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:06:40,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296303398] [2024-12-02 06:06:40,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:40,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:06:40,255 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:06:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:06:40,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:06:40,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash 35849, now seen corresponding path program 1 times [2024-12-02 06:06:40,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:06:40,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533110118] [2024-12-02 06:06:40,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:40,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:06:40,290 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:06:40,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:06:40,297 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:06:40,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:06:40,298 INFO L85 PathProgramCache]: Analyzing trace with hash 28694791, now seen corresponding path program 1 times [2024-12-02 06:06:40,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:06:40,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610370333] [2024-12-02 06:06:40,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:06:40,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:06:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:06:40,313 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:06:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:06:40,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:06:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:06:40,589 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:06:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:06:40,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 06:06:40 BoogieIcfgContainer [2024-12-02 06:06:40,616 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 06:06:40,617 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:06:40,617 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:06:40,617 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:06:40,617 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:06:40" (3/4) ... [2024-12-02 06:06:40,619 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 06:06:40,648 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 06:06:40,648 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:06:40,650 INFO L158 Benchmark]: Toolchain (without parser) took 961.36ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 69.5MB in the end (delta: 48.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-02 06:06:40,650 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 83.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:06:40,651 INFO L158 Benchmark]: CACSL2BoogieTranslator took 133.40ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 107.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:06:40,651 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.36ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:06:40,651 INFO L158 Benchmark]: Boogie Preprocessor took 24.56ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:06:40,652 INFO L158 Benchmark]: RCFGBuilder took 187.24ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 96.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:06:40,652 INFO L158 Benchmark]: BuchiAutomizer took 561.48ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 71.1MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 06:06:40,652 INFO L158 Benchmark]: Witness Printer took 31.78ms. Allocated memory is still 142.6MB. Free memory was 71.1MB in the beginning and 69.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:06:40,654 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 83.3MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 133.40ms. Allocated memory is still 142.6MB. Free memory was 117.7MB in the beginning and 107.5MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.36ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.56ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 187.24ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 96.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 561.48ms. Allocated memory is still 142.6MB. Free memory was 96.2MB in the beginning and 71.1MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 31.78ms. Allocated memory is still 142.6MB. Free memory was 71.1MB in the beginning and 69.5MB in the end (delta: 1.6MB). There was no memory consumed. 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 0.4s 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: 13]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() 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: [L9] int a[1048]; [L11] a[2] = __VERIFIER_nondet_int() Loop: [L13] EXPR a[2] [L13] COND TRUE a[2] >= 0 [L14] EXPR a[2] [L14] a[2] = a[2] - 1 [L15] a[1+1] = __VERIFIER_nondet_int() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 06:06:40,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9aa9ef11-8762-4585-beb6-160dc426cc47/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)