./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/termination.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/nec40.c --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/loops/nec40.c -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 a8ae9bcd5a551c2558190e4ca1b7d8543f9adf38b9d950429bd2292753c8e588 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 17:26:11,649 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 17:26:11,728 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-10-13 17:26:11,735 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 17:26:11,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 17:26:11,765 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 17:26:11,766 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 17:26:11,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 17:26:11,767 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 17:26:11,769 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 17:26:11,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 17:26:11,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 17:26:11,771 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 17:26:11,772 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-13 17:26:11,775 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-13 17:26:11,775 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-13 17:26:11,775 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-13 17:26:11,775 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-13 17:26:11,776 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-13 17:26:11,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 17:26:11,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-13 17:26:11,778 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 17:26:11,779 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 17:26:11,779 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 17:26:11,779 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 17:26:11,779 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-13 17:26:11,780 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-13 17:26:11,780 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-13 17:26:11,780 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 17:26:11,780 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 17:26:11,780 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 17:26:11,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 17:26:11,781 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-13 17:26:11,781 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 17:26:11,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 17:26:11,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 17:26:11,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 17:26:11,782 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 17:26:11,783 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-13 17:26:11,783 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8ae9bcd5a551c2558190e4ca1b7d8543f9adf38b9d950429bd2292753c8e588 [2024-10-13 17:26:12,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 17:26:12,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 17:26:12,064 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 17:26:12,066 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 17:26:12,067 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 17:26:12,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/nec40.c [2024-10-13 17:26:13,576 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 17:26:13,771 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 17:26:13,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/nec40.c [2024-10-13 17:26:13,777 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfbcbe88/a99d2bf4d5f241e4a81196714dafafb0/FLAG30c7a3866 [2024-10-13 17:26:13,794 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8dfbcbe88/a99d2bf4d5f241e4a81196714dafafb0 [2024-10-13 17:26:13,796 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 17:26:13,797 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 17:26:13,798 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 17:26:13,798 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 17:26:13,803 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 17:26:13,804 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:26:13" (1/1) ... [2024-10-13 17:26:13,805 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28af8b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:13, skipping insertion in model container [2024-10-13 17:26:13,805 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:26:13" (1/1) ... [2024-10-13 17:26:13,823 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 17:26:13,982 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:26:13,993 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 17:26:14,010 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 17:26:14,024 INFO L204 MainTranslator]: Completed translation [2024-10-13 17:26:14,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14 WrapperNode [2024-10-13 17:26:14,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 17:26:14,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 17:26:14,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 17:26:14,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 17:26:14,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,057 INFO L138 Inliner]: procedures = 13, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2024-10-13 17:26:14,058 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 17:26:14,059 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 17:26:14,059 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 17:26:14,059 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 17:26:14,068 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,069 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,071 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,083 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 8, 3, 4]. 47 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8, 0, 0]. The 4 writes are split as follows [0, 0, 1, 3]. [2024-10-13 17:26:14,084 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,084 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,093 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,096 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,097 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,098 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,100 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 17:26:14,101 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 17:26:14,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 17:26:14,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 17:26:14,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (1/1) ... [2024-10-13 17:26:14,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-13 17:26:14,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 17:26:14,136 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 17:26:14,165 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 17:26:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 17:26:14,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 17:26:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 17:26:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 17:26:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 17:26:14,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 17:26:14,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 17:26:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 17:26:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 17:26:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 17:26:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 17:26:14,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 17:26:14,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 17:26:14,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 17:26:14,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 17:26:14,324 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 17:26:14,326 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 17:26:14,436 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-10-13 17:26:14,436 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 17:26:14,451 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 17:26:14,452 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 17:26:14,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:26:14 BoogieIcfgContainer [2024-10-13 17:26:14,453 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 17:26:14,454 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-13 17:26:14,454 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-13 17:26:14,458 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-13 17:26:14,459 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:26:14,459 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 05:26:13" (1/3) ... [2024-10-13 17:26:14,460 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19faf30a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:26:14, skipping insertion in model container [2024-10-13 17:26:14,460 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:26:14,460 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:26:14" (2/3) ... [2024-10-13 17:26:14,460 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@19faf30a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 05:26:14, skipping insertion in model container [2024-10-13 17:26:14,460 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-13 17:26:14,461 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:26:14" (3/3) ... [2024-10-13 17:26:14,462 INFO L332 chiAutomizerObserver]: Analyzing ICFG nec40.c [2024-10-13 17:26:14,519 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-13 17:26:14,520 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-13 17:26:14,520 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-13 17:26:14,520 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-13 17:26:14,520 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-13 17:26:14,520 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-13 17:26:14,520 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-13 17:26:14,520 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-13 17:26:14,524 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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 17:26:14,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 17:26:14,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:26:14,542 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:26:14,546 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 17:26:14,547 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 17:26:14,547 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-13 17:26:14,547 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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 17:26:14,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2024-10-13 17:26:14,549 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-13 17:26:14,549 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-13 17:26:14,550 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2024-10-13 17:26:14,550 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2024-10-13 17:26:14,557 INFO L745 eck$LassoCheckResult]: Stem: 14#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(8, 2);call write~init~int#1(110, 2, 0, 1);call write~init~int#1(101, 2, 1, 1);call write~init~int#1(99, 2, 2, 1);call write~init~int#1(52, 2, 3, 1);call write~init~int#1(48, 2, 4, 1);call write~init~int#1(46, 2, 5, 1);call write~init~int#1(99, 2, 6, 1);call write~init~int#1(0, 2, 7, 1);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(100, 4);~#x~0.base, ~#x~0.offset := 4, 0;#memory_int#2 := ~initToZeroAtPointerBaseAddress~int(#memory_int#2, ~#x~0.base);call #Ultimate.allocInit(100, 5);~#y~0.base, ~#y~0.offset := 5, 0;#memory_int#3 := ~initToZeroAtPointerBaseAddress~int(#memory_int#3, ~#y~0.base);~i~0 := 0;~j~0 := 0;~k~0 := 0; 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~mem5#1, main_#t~mem6#1, main_#t~post7#1, main_#t~mem8#1;havoc main_#t~nondet4#1;~k~0 := main_#t~nondet4#1;havoc main_#t~nondet4#1;~i~0 := 0; 13#L20-3true [2024-10-13 17:26:14,557 INFO L747 eck$LassoCheckResult]: Loop: 13#L20-3true call main_#t~mem5#1 := read~int#2(~#x~0.base, ~#x~0.offset + ~i~0, 1); 15#L20-1true assume !!(0 != main_#t~mem5#1);havoc main_#t~mem5#1;call main_#t~mem6#1 := read~int#2(~#x~0.base, ~#x~0.offset + ~i~0, 1);call write~int#3(main_#t~mem6#1, ~#y~0.base, ~#y~0.offset + ~i~0, 1);havoc main_#t~mem6#1;main_#t~post7#1 := ~i~0;~i~0 := 1 + main_#t~post7#1;havoc main_#t~post7#1; 13#L20-3true [2024-10-13 17:26:14,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:26:14,573 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2024-10-13 17:26:14,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:26:14,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537379220] [2024-10-13 17:26:14,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:26:14,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:26:14,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:26:14,661 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:26:14,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:26:14,696 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:26:14,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:26:14,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1190, now seen corresponding path program 1 times [2024-10-13 17:26:14,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:26:14,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014681454] [2024-10-13 17:26:14,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:26:14,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:26:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:26:14,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-13 17:26:14,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-13 17:26:14,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-13 17:26:14,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 17:26:14,729 INFO L85 PathProgramCache]: Analyzing trace with hash 925672, now seen corresponding path program 1 times [2024-10-13 17:26:14,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 17:26:14,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628580183] [2024-10-13 17:26:14,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 17:26:14,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 17:26:14,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 17:26:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 17:26:14,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 17:26:14,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628580183] [2024-10-13 17:26:14,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628580183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 17:26:14,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 17:26:14,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 17:26:14,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004350482] [2024-10-13 17:26:14,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 17:26:15,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 17:26:15,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 17:26:15,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 17:26:15,128 INFO L87 Difference]: Start difference. First operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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 17:26:15,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 17:26:15,168 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2024-10-13 17:26:15,169 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2024-10-13 17:26:15,172 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 17:26:15,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 0 states and 0 transitions. [2024-10-13 17:26:15,174 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-10-13 17:26:15,174 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-10-13 17:26:15,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-10-13 17:26:15,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-10-13 17:26:15,175 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:26:15,175 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:26:15,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 17:26:15,180 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 17:26:15,180 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-13 17:26:15,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-10-13 17:26:15,180 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-10-13 17:26:15,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-10-13 17:26:15,188 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 05:26:15 BoogieIcfgContainer [2024-10-13 17:26:15,189 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-10-13 17:26:15,189 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 17:26:15,190 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 17:26:15,190 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 17:26:15,190 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:26:14" (3/4) ... [2024-10-13 17:26:15,193 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-13 17:26:15,194 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 17:26:15,194 INFO L158 Benchmark]: Toolchain (without parser) took 1397.08ms. Allocated memory is still 190.8MB. Free memory was 122.9MB in the beginning and 115.5MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2024-10-13 17:26:15,195 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 109.1MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:26:15,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.33ms. Allocated memory is still 190.8MB. Free memory was 122.7MB in the beginning and 110.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-13 17:26:15,196 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.88ms. Allocated memory is still 190.8MB. Free memory was 110.6MB in the beginning and 109.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:26:15,197 INFO L158 Benchmark]: Boogie Preprocessor took 41.80ms. Allocated memory is still 190.8MB. Free memory was 109.1MB in the beginning and 107.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-13 17:26:15,198 INFO L158 Benchmark]: RCFGBuilder took 351.99ms. Allocated memory is still 190.8MB. Free memory was 107.0MB in the beginning and 154.0MB in the end (delta: -47.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2024-10-13 17:26:15,199 INFO L158 Benchmark]: BuchiAutomizer took 734.80ms. Allocated memory is still 190.8MB. Free memory was 153.3MB in the beginning and 115.5MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-10-13 17:26:15,199 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 190.8MB. Free memory is still 115.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 17:26:15,201 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 109.1MB. Free memory is still 71.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.33ms. Allocated memory is still 190.8MB. Free memory was 122.7MB in the beginning and 110.8MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.88ms. Allocated memory is still 190.8MB. Free memory was 110.6MB in the beginning and 109.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.80ms. Allocated memory is still 190.8MB. Free memory was 109.1MB in the beginning and 107.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 351.99ms. Allocated memory is still 190.8MB. Free memory was 107.0MB in the beginning and 154.0MB in the end (delta: -47.0MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 734.80ms. Allocated memory is still 190.8MB. Free memory was 153.3MB in the beginning and 115.5MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 190.8MB. Free memory is still 115.5MB. 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 Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic). 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 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 1. 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: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 13 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 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: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-10-13 17:26:15,225 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 Result: TRUE