./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.5-dev-4a390ef-m [2024-10-24 23:47:07,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 23:47:07,951 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-24 23:47:07,958 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 23:47:07,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 23:47:07,995 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 23:47:07,996 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 23:47:07,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 23:47:07,996 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 23:47:07,997 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 23:47:07,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 23:47:07,999 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 23:47:07,999 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 23:47:08,002 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-24 23:47:08,003 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-24 23:47:08,003 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-24 23:47:08,003 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-24 23:47:08,003 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-24 23:47:08,004 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-24 23:47:08,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 23:47:08,006 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-24 23:47:08,007 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 23:47:08,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 23:47:08,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-24 23:47:08,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-24 23:47:08,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-24 23:47:08,008 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 23:47:08,008 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 23:47:08,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 23:47:08,009 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-24 23:47:08,009 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 23:47:08,009 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 23:47:08,010 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 23:47:08,010 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 23:47:08,010 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 23:47:08,011 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-24 23:47:08,011 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4006e5bbc9a234a3363872bc2e5100c7378eec16240b7c8c65c17af0dd119109 [2024-10-24 23:47:08,300 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 23:47:08,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 23:47:08,326 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 23:47:08,327 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 23:47:08,328 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 23:47:08,329 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2024-10-24 23:47:09,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 23:47:09,905 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 23:47:09,906 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Arrays02-EquivalentConstantIndices.c [2024-10-24 23:47:09,914 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29503f354/15b29c006f354947affd700bc5de3ba4/FLAG4ac4d0812 [2024-10-24 23:47:09,934 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29503f354/15b29c006f354947affd700bc5de3ba4 [2024-10-24 23:47:09,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 23:47:09,938 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 23:47:09,942 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 23:47:09,942 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 23:47:09,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 23:47:09,948 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:47:09" (1/1) ... [2024-10-24 23:47:09,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59accba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:09, skipping insertion in model container [2024-10-24 23:47:09,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:47:09" (1/1) ... [2024-10-24 23:47:09,966 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 23:47:10,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:47:10,143 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 23:47:10,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 23:47:10,182 INFO L204 MainTranslator]: Completed translation [2024-10-24 23:47:10,183 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10 WrapperNode [2024-10-24 23:47:10,183 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 23:47:10,184 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 23:47:10,184 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 23:47:10,185 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 23:47:10,191 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,198 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,218 INFO L138 Inliner]: procedures = 8, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2024-10-24 23:47:10,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 23:47:10,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 23:47:10,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 23:47:10,221 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 23:47:10,231 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,231 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,233 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,250 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]. [2024-10-24 23:47:10,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,251 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,254 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,262 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,263 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,264 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 23:47:10,266 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 23:47:10,267 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 23:47:10,267 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 23:47:10,268 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (1/1) ... [2024-10-24 23:47:10,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-24 23:47:10,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 23:47:10,298 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-24 23:47:10,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-24 23:47:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-24 23:47:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 23:47:10,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 23:47:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-24 23:47:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-24 23:47:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-24 23:47:10,401 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 23:47:10,403 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 23:47:10,541 INFO L? ?]: Removed 2 outVars from TransFormulas that were not future-live. [2024-10-24 23:47:10,541 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 23:47:10,549 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 23:47:10,549 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 23:47:10,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:47:10 BoogieIcfgContainer [2024-10-24 23:47:10,550 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 23:47:10,551 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-24 23:47:10,551 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-24 23:47:10,554 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-24 23:47:10,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:47:10,555 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 24.10 11:47:09" (1/3) ... [2024-10-24 23:47:10,555 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eff6d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.10 11:47:10, skipping insertion in model container [2024-10-24 23:47:10,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:47:10,556 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:47:10" (2/3) ... [2024-10-24 23:47:10,556 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2eff6d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 24.10 11:47:10, skipping insertion in model container [2024-10-24 23:47:10,556 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-24 23:47:10,556 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:47:10" (3/3) ... [2024-10-24 23:47:10,557 INFO L332 chiAutomizerObserver]: Analyzing ICFG Arrays02-EquivalentConstantIndices.c [2024-10-24 23:47:10,597 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-24 23:47:10,598 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-24 23:47:10,598 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-24 23:47:10,598 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-24 23:47:10,598 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-24 23:47:10,598 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-24 23:47:10,598 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-24 23:47:10,598 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-24 23:47:10,601 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2024-10-24 23:47:10,613 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-24 23:47:10,613 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:47:10,613 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:47:10,618 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-24 23:47:10,618 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-24 23:47:10,618 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-24 23:47:10,618 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2024-10-24 23:47:10,619 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-24 23:47:10,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-24 23:47:10,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-24 23:47:10,619 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-24 23:47:10,619 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-24 23:47:10,633 INFO L745 eck$LassoCheckResult]: Stem: 5#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~mem1#1, main_#t~mem2#1, main_#t~nondet3#1, main_~#a~0#1.base, main_~#a~0#1.offset;call main_~#a~0#1.base, main_~#a~0#1.offset := #Ultimate.allocOnStack(4192);havoc main_#t~nondet0#1;call write~int#0(main_#t~nondet0#1, main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4);havoc main_#t~nondet0#1; 6#L13-3true [2024-10-24 23:47:10,633 INFO L747 eck$LassoCheckResult]: Loop: 6#L13-3true call main_#t~mem1#1 := read~int#0(main_~#a~0#1.base, 8 + main_~#a~0#1.offset, 4); 3#L13-1true 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; 6#L13-3true [2024-10-24 23:47:10,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:47:10,641 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-24 23:47:10,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:47:10,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032320217] [2024-10-24 23:47:10,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:47:10,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:47:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:47:10,727 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:47:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:47:10,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:47:10,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:47:10,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2024-10-24 23:47:10,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:47:10,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269806037] [2024-10-24 23:47:10,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:47:10,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:47:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:47:10,763 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:47:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:47:10,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:47:10,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 23:47:10,777 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-10-24 23:47:10,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 23:47:10,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711343549] [2024-10-24 23:47:10,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 23:47:10,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 23:47:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:47:10,801 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:47:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:47:10,812 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-24 23:47:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:47:11,090 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-24 23:47:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-24 23:47:11,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 24.10 11:47:11 BoogieIcfgContainer [2024-10-24 23:47:11,120 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-24 23:47:11,121 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 23:47:11,123 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 23:47:11,123 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 23:47:11,124 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:47:10" (3/4) ... [2024-10-24 23:47:11,126 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-24 23:47:11,150 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 23:47:11,150 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 23:47:11,151 INFO L158 Benchmark]: Toolchain (without parser) took 1213.25ms. Allocated memory is still 161.5MB. Free memory was 110.5MB in the beginning and 100.1MB in the end (delta: 10.4MB). Peak memory consumption was 6.7MB. Max. memory is 16.1GB. [2024-10-24 23:47:11,152 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 96.5MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:47:11,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.67ms. Allocated memory is still 161.5MB. Free memory was 110.5MB in the beginning and 99.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 23:47:11,152 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.62ms. Allocated memory is still 161.5MB. Free memory was 99.1MB in the beginning and 97.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:47:11,153 INFO L158 Benchmark]: Boogie Preprocessor took 45.63ms. Allocated memory is still 161.5MB. Free memory was 97.9MB in the beginning and 95.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-24 23:47:11,153 INFO L158 Benchmark]: RCFGBuilder took 283.30ms. Allocated memory is still 161.5MB. Free memory was 95.8MB in the beginning and 130.7MB in the end (delta: -34.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-24 23:47:11,154 INFO L158 Benchmark]: BuchiAutomizer took 569.89ms. Allocated memory is still 161.5MB. Free memory was 130.7MB in the beginning and 101.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-24 23:47:11,154 INFO L158 Benchmark]: Witness Printer took 28.99ms. Allocated memory is still 161.5MB. Free memory was 101.3MB in the beginning and 100.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 23:47:11,157 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 96.5MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.67ms. Allocated memory is still 161.5MB. Free memory was 110.5MB in the beginning and 99.1MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.62ms. Allocated memory is still 161.5MB. Free memory was 99.1MB in the beginning and 97.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.63ms. Allocated memory is still 161.5MB. Free memory was 97.9MB in the beginning and 95.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 283.30ms. Allocated memory is still 161.5MB. Free memory was 95.8MB in the beginning and 130.7MB in the end (delta: -34.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 569.89ms. Allocated memory is still 161.5MB. Free memory was 130.7MB in the beginning and 101.3MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 28.99ms. Allocated memory is still 161.5MB. Free memory was 101.3MB in the beginning and 100.1MB in the end (delta: 1.2MB). 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 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 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! [2024-10-24 23:47:11,183 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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)