./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-memory-alloca/cstrchr-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 35987657 Calling Ultimate with: /usr/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/cstrchr-alloca-1.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.graphml --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 312f51ef4503f0fc4b94d177cfa21e5892ce6df837fb8c86c4b09d81ecb9ffbb --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:39:01,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:39:01,788 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:39:01,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:39:01,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:39:01,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:39:01,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:39:01,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:39:01,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:39:01,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:39:01,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:39:01,833 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:39:01,833 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:39:01,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:39:01,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:39:01,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:39:01,840 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:39:01,841 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:39:01,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:39:01,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:39:01,847 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:39:01,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:39:01,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:39:01,850 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:39:01,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:39:01,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:39:01,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:39:01,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:39:01,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:39:01,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:39:01,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:39:01,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:39:01,860 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:39:01,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:39:01,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:39:01,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:39:01,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:39:01,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:39:01,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:39:01,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:39:01,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:39:01,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:39:01,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-22 01:39:01,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:39:01,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:39:01,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:39:01,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:39:01,894 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:39:01,894 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:39:01,894 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:39:01,894 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:39:01,894 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:39:01,895 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:39:01,895 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:39:01,895 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:39:01,896 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:39:01,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:39:01,903 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:39:01,903 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:39:01,903 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:39:01,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:39:01,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:39:01,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:39:01,904 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:39:01,904 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:39:01,904 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:39:01,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:39:01,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:39:01,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:39:01,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:39:01,905 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:39:01,907 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:39:01,907 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 312f51ef4503f0fc4b94d177cfa21e5892ce6df837fb8c86c4b09d81ecb9ffbb [2022-07-22 01:39:02,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:39:02,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:39:02,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:39:02,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:39:02,222 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:39:02,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-memory-alloca/cstrchr-alloca-1.i [2022-07-22 01:39:02,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bc5eb71c/78efd30a60f34346aa0a20293657a8d4/FLAGa43637aca [2022-07-22 01:39:02,625 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:39:02,626 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-memory-alloca/cstrchr-alloca-1.i [2022-07-22 01:39:02,634 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bc5eb71c/78efd30a60f34346aa0a20293657a8d4/FLAGa43637aca [2022-07-22 01:39:03,023 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9bc5eb71c/78efd30a60f34346aa0a20293657a8d4 [2022-07-22 01:39:03,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:39:03,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:39:03,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:39:03,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:39:03,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:39:03,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,031 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca1ee8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03, skipping insertion in model container [2022-07-22 01:39:03,032 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:39:03,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:39:03,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:39:03,281 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:39:03,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:39:03,354 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:39:03,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03 WrapperNode [2022-07-22 01:39:03,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:39:03,355 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:39:03,355 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:39:03,355 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:39:03,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,375 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,389 INFO L137 Inliner]: procedures = 111, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-07-22 01:39:03,391 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:39:03,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:39:03,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:39:03,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:39:03,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:39:03,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:39:03,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:39:03,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:39:03,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (1/1) ... [2022-07-22 01:39:03,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:39:03,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:39:03,447 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) [2022-07-22 01:39:03,449 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 [2022-07-22 01:39:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 01:39:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 01:39:03,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 01:39:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 01:39:03,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:39:03,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:39:03,632 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:39:03,633 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:39:03,786 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:39:03,790 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:39:03,790 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 01:39:03,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:39:03 BoogieIcfgContainer [2022-07-22 01:39:03,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:39:03,792 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:39:03,792 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:39:03,802 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:39:03,803 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:39:03,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:39:03" (1/3) ... [2022-07-22 01:39:03,804 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66127e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:39:03, skipping insertion in model container [2022-07-22 01:39:03,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:39:03,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:39:03" (2/3) ... [2022-07-22 01:39:03,804 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@66127e21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:39:03, skipping insertion in model container [2022-07-22 01:39:03,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:39:03,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:39:03" (3/3) ... [2022-07-22 01:39:03,805 INFO L354 chiAutomizerObserver]: Analyzing ICFG cstrchr-alloca-1.i [2022-07-22 01:39:03,885 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:39:03,885 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:39:03,885 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:39:03,885 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:39:03,885 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:39:03,885 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:39:03,886 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:39:03,886 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:39:03,891 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2022-07-22 01:39:03,906 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:39:03,906 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:39:03,906 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:39:03,910 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 01:39:03,911 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:39:03,911 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:39:03,911 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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) [2022-07-22 01:39:03,913 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:39:03,913 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:39:03,913 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:39:03,913 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2022-07-22 01:39:03,913 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-22 01:39:03,918 INFO L752 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet8#1, main_#t~malloc9#1.base, main_#t~malloc9#1.offset, main_#t~nondet10#1, main_#t~ret11#1.base, main_#t~ret11#1.offset, main_~length~0#1, main_~nondetString~0#1.base, main_~nondetString~0#1.offset;main_~length~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1; 12#L555true assume !(main_~length~0#1 < 1); 9#L555-2true call main_#t~malloc9#1.base, main_#t~malloc9#1.offset := #Ultimate.allocOnStack(main_~length~0#1);main_~nondetString~0#1.base, main_~nondetString~0#1.offset := main_#t~malloc9#1.base, main_#t~malloc9#1.offset;call write~int(0, main_~nondetString~0#1.base, main_~nondetString~0#1.offset + (main_~length~0#1 - 1), 1);assume { :begin_inline_cstrchr } true;cstrchr_#in~s#1.base, cstrchr_#in~s#1.offset, cstrchr_#in~c#1 := main_~nondetString~0#1.base, main_~nondetString~0#1.offset, main_#t~nondet10#1;havoc cstrchr_#res#1.base, cstrchr_#res#1.offset;havoc cstrchr_#t~post5#1.base, cstrchr_#t~post5#1.offset, cstrchr_#t~mem2#1, cstrchr_#t~mem3#1, cstrchr_#t~short4#1, cstrchr_#t~mem6#1, cstrchr_#t~ite7#1.base, cstrchr_#t~ite7#1.offset, cstrchr_~s#1.base, cstrchr_~s#1.offset, cstrchr_~c#1;cstrchr_~s#1.base, cstrchr_~s#1.offset := cstrchr_#in~s#1.base, cstrchr_#in~s#1.offset;cstrchr_~c#1 := cstrchr_#in~c#1; 11#L549-5true [2022-07-22 01:39:03,918 INFO L754 eck$LassoCheckResult]: Loop: 11#L549-5true call cstrchr_#t~mem2#1 := read~int(cstrchr_~s#1.base, cstrchr_~s#1.offset, 1);cstrchr_#t~short4#1 := 0 != cstrchr_#t~mem2#1; 2#L549-1true assume cstrchr_#t~short4#1;call cstrchr_#t~mem3#1 := read~int(cstrchr_~s#1.base, cstrchr_~s#1.offset, 1);cstrchr_#t~short4#1 := cstrchr_#t~mem3#1 != (if cstrchr_~c#1 % 256 <= 127 then cstrchr_~c#1 % 256 else cstrchr_~c#1 % 256 - 256); 7#L549-3true assume !!cstrchr_#t~short4#1;havoc cstrchr_#t~mem2#1;havoc cstrchr_#t~mem3#1;havoc cstrchr_#t~short4#1;cstrchr_#t~post5#1.base, cstrchr_#t~post5#1.offset := cstrchr_~s#1.base, cstrchr_~s#1.offset;cstrchr_~s#1.base, cstrchr_~s#1.offset := cstrchr_#t~post5#1.base, 1 + cstrchr_#t~post5#1.offset;havoc cstrchr_#t~post5#1.base, cstrchr_#t~post5#1.offset; 11#L549-5true [2022-07-22 01:39:03,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:39:03,929 INFO L85 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2022-07-22 01:39:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:39:03,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065251793] [2022-07-22 01:39:03,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:39:03,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:39:04,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:39:04,023 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:39:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:39:04,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:39:04,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:39:04,064 INFO L85 PathProgramCache]: Analyzing trace with hash 43797, now seen corresponding path program 1 times [2022-07-22 01:39:04,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:39:04,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262076603] [2022-07-22 01:39:04,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:39:04,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:39:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:39:04,076 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:39:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:39:04,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:39:04,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:39:04,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1806815409, now seen corresponding path program 1 times [2022-07-22 01:39:04,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:39:04,100 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086047255] [2022-07-22 01:39:04,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:39:04,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:39:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:39:04,133 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:39:04,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:39:04,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:39:04,523 INFO L210 LassoAnalysis]: Preferences: [2022-07-22 01:39:04,524 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-22 01:39:04,524 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-22 01:39:04,524 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-22 01:39:04,524 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2022-07-22 01:39:04,525 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:39:04,525 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-22 01:39:04,525 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-22 01:39:04,526 INFO L133 ssoRankerPreferences]: Filename of dumped script: cstrchr-alloca-1.i_Iteration1_Lasso [2022-07-22 01:39:04,526 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-22 01:39:04,526 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-22 01:39:04,542 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,730 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,740 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,768 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:04,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-22 01:39:05,138 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-22 01:39:05,141 INFO L490 LassoAnalysis]: Using template 'affine'. [2022-07-22 01:39:05,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:39:05,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:39:05,144 INFO L229 MonitoredProcess]: Starting monitored process 2 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) [2022-07-22 01:39:05,189 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:39:05,196 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:39:05,197 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2022-07-22 01:39:05,197 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:39:05,197 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:39:05,197 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:39:05,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2022-07-22 01:39:05,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2022-07-22 01:39:05,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2022-07-22 01:39:05,210 INFO L527 LassoAnalysis]: Proving termination failed for this template and these settings. [2022-07-22 01:39:05,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2022-07-22 01:39:05,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:39:05,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:39:05,228 INFO L229 MonitoredProcess]: Starting monitored process 3 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) [2022-07-22 01:39:05,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2022-07-22 01:39:05,231 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2022-07-22 01:39:05,237 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2022-07-22 01:39:05,238 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2022-07-22 01:39:05,238 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2022-07-22 01:39:05,238 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2022-07-22 01:39:05,246 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2022-07-22 01:39:05,246 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2022-07-22 01:39:05,267 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2022-07-22 01:39:05,286 INFO L443 ModelExtractionUtils]: Simplification made 12 calls to the SMT solver. [2022-07-22 01:39:05,286 INFO L444 ModelExtractionUtils]: 9 out of 25 variables were initially zero. Simplification set additionally 11 variables to zero. [2022-07-22 01:39:05,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:39:05,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:39:05,311 INFO L229 MonitoredProcess]: Starting monitored process 4 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) [2022-07-22 01:39:05,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2022-07-22 01:39:05,313 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2022-07-22 01:39:05,340 INFO L438 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2022-07-22 01:39:05,340 INFO L513 LassoAnalysis]: Proved termination. [2022-07-22 01:39:05,340 INFO L515 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~length~0#1, ULTIMATE.start_cstrchr_~s#1.offset) = 1*ULTIMATE.start_main_~length~0#1 - 1*ULTIMATE.start_cstrchr_~s#1.offset Supporting invariants [-1*v_rep(select #length ULTIMATE.start_cstrchr_~s#1.base)_1 + 1*ULTIMATE.start_main_~length~0#1 >= 0] [2022-07-22 01:39:05,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Forceful destruction successful, exit code 0 [2022-07-22 01:39:05,387 INFO L293 tatePredicateManager]: 4 out of 5 supporting invariants were superfluous and have been removed [2022-07-22 01:39:05,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:39:05,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:39:05,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-22 01:39:05,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:39:05,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 01:39:05,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 01:39:05,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 01:39:05,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 01:39:05,507 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2022-07-22 01:39:05,508 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-22 01:39:05,555 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 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 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) Result 31 states and 39 transitions. Complement of second has 5 states. [2022-07-22 01:39:05,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2022-07-22 01:39:05,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-07-22 01:39:05,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2022-07-22 01:39:05,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 3 letters. [2022-07-22 01:39:05,563 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:39:05,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 7 letters. Loop has 3 letters. [2022-07-22 01:39:05,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:39:05,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 4 letters. Loop has 6 letters. [2022-07-22 01:39:05,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2022-07-22 01:39:05,565 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 39 transitions. [2022-07-22 01:39:05,567 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:39:05,569 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 0 states and 0 transitions. [2022-07-22 01:39:05,570 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2022-07-22 01:39:05,570 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2022-07-22 01:39:05,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2022-07-22 01:39:05,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-22 01:39:05,570 INFO L369 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:39:05,570 INFO L392 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:39:05,571 INFO L374 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-22 01:39:05,571 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-22 01:39:05,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2022-07-22 01:39:05,571 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2022-07-22 01:39:05,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2022-07-22 01:39:05,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:39:05 BoogieIcfgContainer [2022-07-22 01:39:05,576 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:39:05,576 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:39:05,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:39:05,577 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:39:05,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:39:03" (3/4) ... [2022-07-22 01:39:05,579 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-22 01:39:05,579 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:39:05,580 INFO L158 Benchmark]: Toolchain (without parser) took 2553.81ms. Allocated memory was 56.6MB in the beginning and 98.6MB in the end (delta: 41.9MB). Free memory was 34.3MB in the beginning and 62.0MB in the end (delta: -27.7MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2022-07-22 01:39:05,581 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:39:05,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 326.91ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.2MB in the beginning and 50.0MB in the end (delta: -15.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-22 01:39:05,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.93ms. Allocated memory is still 71.3MB. Free memory was 49.8MB in the beginning and 48.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:39:05,582 INFO L158 Benchmark]: Boogie Preprocessor took 17.05ms. Allocated memory is still 71.3MB. Free memory was 48.2MB in the beginning and 46.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:39:05,582 INFO L158 Benchmark]: RCFGBuilder took 369.91ms. Allocated memory is still 71.3MB. Free memory was 46.9MB in the beginning and 36.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 01:39:05,583 INFO L158 Benchmark]: BuchiAutomizer took 1784.28ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 36.7MB in the beginning and 62.0MB in the end (delta: -25.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-07-22 01:39:05,583 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 98.6MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:39:05,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 56.6MB. Free memory was 38.3MB in the beginning and 38.3MB in the end (delta: 44.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 326.91ms. Allocated memory was 56.6MB in the beginning and 71.3MB in the end (delta: 14.7MB). Free memory was 34.2MB in the beginning and 50.0MB in the end (delta: -15.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.93ms. Allocated memory is still 71.3MB. Free memory was 49.8MB in the beginning and 48.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.05ms. Allocated memory is still 71.3MB. Free memory was 48.2MB in the beginning and 46.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 369.91ms. Allocated memory is still 71.3MB. Free memory was 46.9MB in the beginning and 36.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 1784.28ms. Allocated memory was 71.3MB in the beginning and 98.6MB in the end (delta: 27.3MB). Free memory was 36.7MB in the beginning and 62.0MB in the end (delta: -25.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 98.6MB. Free memory is still 62.0MB. 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 (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * s + length and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 12 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital147 mio100 ax112 hnf100 lsp85 ukn90 mio100 lsp33 div166 bol100 ite100 ukn100 eq154 hnf96 smp68 dnf791 smp30 tf100 neg93 sie113 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 113ms VariablesStem: 7 VariablesLoop: 5 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: 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! [2022-07-22 01:39:05,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2022-07-22 01:39:05,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE