./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version a046e57d 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/loop-invgen/SpamAssassin-loop.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:27:44,567 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:27:44,619 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:27:44,625 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:27:44,625 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:27:44,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:27:44,649 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:27:44,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:27:44,651 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:27:44,654 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:27:44,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:27:44,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:27:44,655 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:27:44,655 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:27:44,655 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:27:44,655 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:27:44,655 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:27:44,656 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:27:44,656 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:27:44,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:27:44,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:27:44,657 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:27:44,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:27:44,658 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:27:44,658 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:27:44,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:27:44,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:27:44,658 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:27:44,658 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:27:44,659 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:27:44,659 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:27:44,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:27:44,659 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:27:44,659 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:27:44,659 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:27:44,659 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:27:44,660 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:27:44,660 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:27:44,660 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:27:44,660 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ad27fb086e75bf8f5b08286d8e766d07abfe44ff39234568924cf55ade7a6d5 [2024-10-13 17:27:44,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:27:44,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:27:44,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:27:44,916 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:27:44,916 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:27:44,917 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2024-10-13 17:27:46,212 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:27:46,376 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:27:46,377 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/SpamAssassin-loop.i [2024-10-13 17:27:46,383 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ddab3643/400e1d672c0146cd9c6b945ba88afa84/FLAGa947fadf6 [2024-10-13 17:27:46,395 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9ddab3643/400e1d672c0146cd9c6b945ba88afa84 [2024-10-13 17:27:46,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:27:46,398 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:27:46,400 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:27:46,400 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:27:46,405 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:27:46,406 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,407 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191873a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46, skipping insertion in model container [2024-10-13 17:27:46,407 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:27:46,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:27:46,613 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:27:46,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:27:46,643 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:27:46,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46 WrapperNode [2024-10-13 17:27:46,643 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:27:46,644 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:27:46,644 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:27:46,644 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:27:46,650 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,658 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,677 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 19, calls inlined = 34, statements flattened = 206 [2024-10-13 17:27:46,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:27:46,678 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:27:46,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:27:46,679 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:27:46,691 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,691 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,707 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-13 17:27:46,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,717 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,721 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,723 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,724 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,731 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:27:46,732 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:27:46,732 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:27:46,732 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:27:46,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (1/1) ... [2024-10-13 17:27:46,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:27:46,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:27:46,764 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) [2024-10-13 17:27:46,766 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 [2024-10-13 17:27:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:27:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:27:46,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:27:46,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:27:46,859 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:27:46,861 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:27:47,046 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-10-13 17:27:47,046 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:27:47,059 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:27:47,059 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-13 17:27:47,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:27:47 BoogieIcfgContainer [2024-10-13 17:27:47,059 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:27:47,060 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:27:47,060 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:27:47,063 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:27:47,064 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:27:47,064 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:27:46" (1/3) ... [2024-10-13 17:27:47,064 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35d0e766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:27:47, skipping insertion in model container [2024-10-13 17:27:47,065 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:27:47,065 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:27:46" (2/3) ... [2024-10-13 17:27:47,065 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@35d0e766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:27:47, skipping insertion in model container [2024-10-13 17:27:47,065 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:27:47,065 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:27:47" (3/3) ... [2024-10-13 17:27:47,066 INFO L332 chiAutomizerObserver]: Analyzing ICFG SpamAssassin-loop.i [2024-10-13 17:27:47,111 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:27:47,111 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:27:47,111 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:27:47,111 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:27:47,111 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:27:47,111 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:27:47,111 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:27:47,112 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:27:47,116 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 92 states, 91 states have (on average 1.4285714285714286) internal successors, (130), 91 states have internal predecessors, (130), 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) [2024-10-13 17:27:47,133 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 85 [2024-10-13 17:27:47,133 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:27:47,133 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:27:47,142 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 17:27:47,143 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 17:27:47,143 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:27:47,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 92 states, 91 states have (on average 1.4285714285714286) internal successors, (130), 91 states have internal predecessors, (130), 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) [2024-10-13 17:27:47,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 85 [2024-10-13 17:27:47,150 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:27:47,150 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:27:47,150 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-10-13 17:27:47,150 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 17:27:47,158 INFO L745 eck$LassoCheckResult]: Stem: 46#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(9, 2); 58#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet1#1, main_#t~nondet2#1, main_#t~nondet3#1, main_#t~post4#1, main_#t~post5#1, main_#t~post6#1, main_#t~post7#1, main_#t~post8#1, main_#t~post9#1, main_#t~post10#1, main_~len~0#1, main_~i~0#1, main_~j~0#1, main_~bufsize~0#1, main_~limit~0#1;havoc main_~len~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~bufsize~0#1;havoc main_#t~nondet1#1;main_~bufsize~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1; 10#L31true assume !(main_~bufsize~0#1 < 0);havoc main_#t~nondet2#1;main_~len~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1;main_~limit~0#1 := main_~bufsize~0#1 - 4;main_~i~0#1 := 0; 59#L34-2true [2024-10-13 17:27:47,159 INFO L747 eck$LassoCheckResult]: Loop: 59#L34-2true assume !!(main_~i~0#1 < main_~len~0#1);main_~j~0#1 := 0; 23#L35-2true assume !(main_~i~0#1 < main_~len~0#1 && main_~j~0#1 < main_~limit~0#1); 59#L34-2true [2024-10-13 17:27:47,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:27:47,167 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2024-10-13 17:27:47,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:27:47,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738172188] [2024-10-13 17:27:47,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:27:47,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:27:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:47,257 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:27:47,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:47,279 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:27:47,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:27:47,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1447, now seen corresponding path program 1 times [2024-10-13 17:27:47,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:27:47,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430100521] [2024-10-13 17:27:47,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:27:47,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:27:47,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:47,293 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:27:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:47,299 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:27:47,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:27:47,300 INFO L85 PathProgramCache]: Analyzing trace with hash 28695946, now seen corresponding path program 1 times [2024-10-13 17:27:47,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:27:47,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333783868] [2024-10-13 17:27:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:27:47,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:27:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:47,308 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:27:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:47,316 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:27:47,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:47,477 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:27:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:27:47,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:27:47 BoogieIcfgContainer [2024-10-13 17:27:47,504 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:27:47,505 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:27:47,505 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:27:47,505 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:27:47,507 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:27:47" (3/4) ... [2024-10-13 17:27:47,510 INFO L136 WitnessPrinter]: Generating witness for non-termination counterexample [2024-10-13 17:27:47,536 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 17:27:47,537 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:27:47,538 INFO L158 Benchmark]: Toolchain (without parser) took 1139.17ms. Allocated memory is still 146.8MB. Free memory was 75.7MB in the beginning and 63.7MB in the end (delta: 12.0MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-10-13 17:27:47,538 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 146.8MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:27:47,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.85ms. Allocated memory is still 146.8MB. Free memory was 75.3MB in the beginning and 115.1MB in the end (delta: -39.7MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-10-13 17:27:47,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.93ms. Allocated memory is still 146.8MB. Free memory was 115.1MB in the beginning and 113.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:27:47,539 INFO L158 Benchmark]: Boogie Preprocessor took 53.09ms. Allocated memory is still 146.8MB. Free memory was 113.0MB in the beginning and 110.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:27:47,540 INFO L158 Benchmark]: RCFGBuilder took 327.10ms. Allocated memory is still 146.8MB. Free memory was 110.7MB in the beginning and 93.0MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-13 17:27:47,541 INFO L158 Benchmark]: BuchiAutomizer took 444.32ms. Allocated memory is still 146.8MB. Free memory was 93.0MB in the beginning and 65.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-13 17:27:47,541 INFO L158 Benchmark]: Witness Printer took 32.24ms. Allocated memory is still 146.8MB. Free memory was 65.7MB in the beginning and 63.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:27:47,545 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 146.8MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.85ms. Allocated memory is still 146.8MB. Free memory was 75.3MB in the beginning and 115.1MB in the end (delta: -39.7MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.93ms. Allocated memory is still 146.8MB. Free memory was 115.1MB in the beginning and 113.0MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.09ms. Allocated memory is still 146.8MB. Free memory was 113.0MB in the beginning and 110.7MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 327.10ms. Allocated memory is still 146.8MB. Free memory was 110.7MB in the beginning and 93.0MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 444.32ms. Allocated memory is still 146.8MB. Free memory was 93.0MB in the beginning and 65.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 32.24ms. Allocated memory is still 146.8MB. Free memory was 65.7MB in the beginning and 63.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. 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: 34]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L26] int len; [L27] int i; [L28] int j; [L29] int bufsize; [L30] bufsize = __VERIFIER_nondet_int() [L31] COND FALSE !(bufsize < 0) [L32] len = __VERIFIER_nondet_int() [L33] int limit = bufsize - 4; [L34] i = 0 VAL [bufsize=0, i=0, limit=-4] Loop: [L34] COND TRUE i < len [L35] j = 0 [L35] COND FALSE !(i < len && j < limit) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 34]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L26] int len; [L27] int i; [L28] int j; [L29] int bufsize; [L30] bufsize = __VERIFIER_nondet_int() [L31] COND FALSE !(bufsize < 0) [L32] len = __VERIFIER_nondet_int() [L33] int limit = bufsize - 4; [L34] i = 0 VAL [bufsize=0, i=0, limit=-4] Loop: [L34] COND TRUE i < len [L35] j = 0 [L35] COND FALSE !(i < len && j < limit) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-10-13 17:27:47,570 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)