./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i -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 81242885777c4393c04c5476f1b6fd444015153a4c531a694fafb6a2f2b53954 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:57:18,541 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:57:18,619 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-11-12 20:57:18,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:57:18,626 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:57:18,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:57:18,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:57:18,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:57:18,657 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:57:18,659 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:57:18,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:57:18,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:57:18,660 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:57:18,662 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-12 20:57:18,662 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-12 20:57:18,662 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-12 20:57:18,663 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-12 20:57:18,663 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-12 20:57:18,663 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-12 20:57:18,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:57:18,664 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-12 20:57:18,666 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:57:18,666 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:57:18,667 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-12 20:57:18,667 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-12 20:57:18,667 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-12 20:57:18,667 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:57:18,668 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:57:18,668 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:57:18,668 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-12 20:57:18,669 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:57:18,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:57:18,669 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:57:18,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:57:18,670 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:57:18,670 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-12 20:57:18,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81242885777c4393c04c5476f1b6fd444015153a4c531a694fafb6a2f2b53954 [2024-11-12 20:57:18,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:57:18,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:57:18,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:57:18,929 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:57:18,930 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:57:18,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2024-11-12 20:57:20,344 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:57:20,552 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:57:20,553 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/Urban-2013WST-Fig1-alloca.i [2024-11-12 20:57:20,569 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7086e53fa/5de8a253c7bc449cacb540fa05245f55/FLAGcb7c003a3 [2024-11-12 20:57:20,589 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7086e53fa/5de8a253c7bc449cacb540fa05245f55 [2024-11-12 20:57:20,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:57:20,594 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:57:20,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:57:20,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:57:20,602 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:57:20,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:57:20" (1/1) ... [2024-11-12 20:57:20,604 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4d2f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:20, skipping insertion in model container [2024-11-12 20:57:20,604 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:57:20" (1/1) ... [2024-11-12 20:57:20,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:57:20,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:57:20,941 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:57:20,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:57:21,003 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:57:21,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21 WrapperNode [2024-11-12 20:57:21,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:57:21,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:57:21,005 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:57:21,005 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:57:21,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,043 INFO L138 Inliner]: procedures = 110, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 25 [2024-11-12 20:57:21,043 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:57:21,044 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:57:21,044 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:57:21,045 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:57:21,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,052 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,054 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,063 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 2 writes are split as follows [2]. [2024-11-12 20:57:21,063 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,063 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,068 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,069 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,070 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,071 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:57:21,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:57:21,072 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:57:21,072 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:57:21,076 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (1/1) ... [2024-11-12 20:57:21,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-12 20:57:21,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:57:21,101 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) [2024-11-12 20:57:21,103 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 [2024-11-12 20:57:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 20:57:21,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 20:57:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 20:57:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 20:57:21,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:57:21,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:57:21,246 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:57:21,248 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:57:21,322 INFO L? ?]: Removed 3 outVars from TransFormulas that were not future-live. [2024-11-12 20:57:21,322 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:57:21,334 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:57:21,335 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 20:57:21,335 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:57:21 BoogieIcfgContainer [2024-11-12 20:57:21,335 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:57:21,336 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-12 20:57:21,337 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-12 20:57:21,341 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-12 20:57:21,342 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:57:21,342 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.11 08:57:20" (1/3) ... [2024-11-12 20:57:21,343 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3aff8c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:57:21, skipping insertion in model container [2024-11-12 20:57:21,344 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:57:21,345 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:57:21" (2/3) ... [2024-11-12 20:57:21,345 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3aff8c4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.11 08:57:21, skipping insertion in model container [2024-11-12 20:57:21,345 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-12 20:57:21,345 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:57:21" (3/3) ... [2024-11-12 20:57:21,347 INFO L332 chiAutomizerObserver]: Analyzing ICFG Urban-2013WST-Fig1-alloca.i [2024-11-12 20:57:21,408 INFO L301 stractBuchiCegarLoop]: Interprodecural is true [2024-11-12 20:57:21,408 INFO L302 stractBuchiCegarLoop]: Hoare is None [2024-11-12 20:57:21,409 INFO L303 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-12 20:57:21,409 INFO L304 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-12 20:57:21,409 INFO L305 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-12 20:57:21,409 INFO L306 stractBuchiCegarLoop]: Difference is false [2024-11-12 20:57:21,409 INFO L307 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-12 20:57:21,410 INFO L311 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-12 20:57:21,414 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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) [2024-11-12 20:57:21,430 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:57:21,430 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:57:21,431 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:57:21,436 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:57:21,436 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:57:21,436 INFO L333 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-12 20:57:21,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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) [2024-11-12 20:57:21,438 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2024-11-12 20:57:21,439 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-12 20:57:21,439 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-12 20:57:21,439 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-11-12 20:57:21,439 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2024-11-12 20:57:21,446 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~malloc2#1.base, main_#t~malloc2#1.offset, main_#t~nondet3#1, main_#t~mem4#1, main_#t~mem5#1, main_#t~mem6#1, main_~x~0#1.base, main_~x~0#1.offset;call main_#t~malloc2#1.base, main_#t~malloc2#1.offset := #Ultimate.allocOnStack(4);main_~x~0#1.base, main_~x~0#1.offset := main_#t~malloc2#1.base, main_#t~malloc2#1.offset;havoc main_#t~nondet3#1;call write~int#0(main_#t~nondet3#1, main_~x~0#1.base, main_~x~0#1.offset, 4);havoc main_#t~nondet3#1;" [2024-11-12 20:57:21,447 INFO L749 eck$LassoCheckResult]: Loop: "call main_#t~mem4#1 := read~int#0(main_~x~0#1.base, main_~x~0#1.offset, 4);" "assume !!(main_#t~mem4#1 <= 10);havoc main_#t~mem4#1;call main_#t~mem5#1 := read~int#0(main_~x~0#1.base, main_~x~0#1.offset, 4);" "assume !(main_#t~mem5#1 > 6);havoc main_#t~mem5#1;" [2024-11-12 20:57:21,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:57:21,452 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-11-12 20:57:21,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:57:21,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232703434] [2024-11-12 20:57:21,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:57:21,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:57:21,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:57:21,574 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:57:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:57:21,600 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:57:21,602 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:57:21,602 INFO L85 PathProgramCache]: Analyzing trace with hash 36907, now seen corresponding path program 1 times [2024-11-12 20:57:21,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:57:21,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205529043] [2024-11-12 20:57:21,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:57:21,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:57:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:57:21,611 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:57:21,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:57:21,618 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:57:21,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:57:21,620 INFO L85 PathProgramCache]: Analyzing trace with hash 28695849, now seen corresponding path program 1 times [2024-11-12 20:57:21,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:57:21,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391698401] [2024-11-12 20:57:21,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:57:21,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:57:21,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:57:21,641 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:57:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:57:21,655 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:57:21,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:57:21,967 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:57:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:57:21,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 12.11 08:57:21 BoogieIcfgContainer [2024-11-12 20:57:21,997 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-12 20:57:21,998 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:57:21,998 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:57:21,999 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:57:21,999 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:57:21" (3/4) ... [2024-11-12 20:57:22,001 INFO L139 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-12 20:57:22,028 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 20:57:22,028 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:57:22,030 INFO L158 Benchmark]: Toolchain (without parser) took 1435.23ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 87.1MB in the beginning and 130.0MB in the end (delta: -42.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 20:57:22,030 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:57:22,031 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.54ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 68.9MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 20:57:22,031 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.36ms. Allocated memory is still 142.6MB. Free memory was 68.9MB in the beginning and 67.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:57:22,032 INFO L158 Benchmark]: Boogie Preprocessor took 27.36ms. Allocated memory is still 142.6MB. Free memory was 67.2MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:57:22,032 INFO L158 Benchmark]: RCFGBuilder took 263.55ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 65.4MB in the beginning and 163.6MB in the end (delta: -98.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-12 20:57:22,033 INFO L158 Benchmark]: BuchiAutomizer took 661.17ms. Allocated memory is still 195.0MB. Free memory was 163.6MB in the beginning and 131.1MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-12 20:57:22,033 INFO L158 Benchmark]: Witness Printer took 30.20ms. Allocated memory is still 195.0MB. Free memory was 131.1MB in the beginning and 130.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:57:22,036 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 104.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.54ms. Allocated memory is still 142.6MB. Free memory was 86.8MB in the beginning and 68.9MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.36ms. Allocated memory is still 142.6MB. Free memory was 68.9MB in the beginning and 67.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.36ms. Allocated memory is still 142.6MB. Free memory was 67.2MB in the beginning and 65.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 263.55ms. Allocated memory was 142.6MB in the beginning and 195.0MB in the end (delta: 52.4MB). Free memory was 65.4MB in the beginning and 163.6MB in the end (delta: -98.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 661.17ms. Allocated memory is still 195.0MB. Free memory was 163.6MB in the beginning and 131.1MB in the end (delta: 32.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 30.20ms. Allocated memory is still 195.0MB. Free memory was 131.1MB in the beginning and 130.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.5s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. 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: 551]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L549] int* x = __builtin_alloca (sizeof(int)); [L550] *x = __VERIFIER_nondet_int() Loop: [L551] EXPR \read(*x) [L551] COND TRUE *x <= 10 [L552] EXPR \read(*x) [L552] COND FALSE !(*x > 6) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 551]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L549] int* x = __builtin_alloca (sizeof(int)); [L550] *x = __VERIFIER_nondet_int() Loop: [L551] EXPR \read(*x) [L551] COND TRUE *x <= 10 [L552] EXPR \read(*x) [L552] COND FALSE !(*x > 6) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-12 20:57:22,061 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)