./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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-nla/dijkstra2-both-nt.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.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 32bit --witnessprinter.graph.data.programhash 3e7687da568dfe273ac225f01dbc8df1f76ef15d8b8e5d222cf6fab4c622d621 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-22 01:32:18,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 01:32:18,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 01:32:18,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 01:32:18,858 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 01:32:18,860 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 01:32:18,864 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 01:32:18,866 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 01:32:18,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 01:32:18,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 01:32:18,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 01:32:18,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 01:32:18,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 01:32:18,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 01:32:18,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 01:32:18,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 01:32:18,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 01:32:18,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 01:32:18,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 01:32:18,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 01:32:18,900 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 01:32:18,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 01:32:18,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 01:32:18,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 01:32:18,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 01:32:18,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 01:32:18,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 01:32:18,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 01:32:18,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 01:32:18,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 01:32:18,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 01:32:18,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 01:32:18,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 01:32:18,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 01:32:18,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 01:32:18,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 01:32:18,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 01:32:18,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 01:32:18,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 01:32:18,919 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 01:32:18,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 01:32:18,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 01:32:18,929 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-22 01:32:18,959 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 01:32:18,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 01:32:18,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 01:32:18,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 01:32:18,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 01:32:18,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 01:32:18,962 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 01:32:18,962 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-22 01:32:18,963 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-22 01:32:18,964 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-22 01:32:18,964 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-22 01:32:18,964 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-22 01:32:18,964 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-22 01:32:18,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 01:32:18,965 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 01:32:18,965 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-22 01:32:18,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 01:32:18,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 01:32:18,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 01:32:18,966 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-22 01:32:18,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-22 01:32:18,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-22 01:32:18,966 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 01:32:18,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 01:32:18,967 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-22 01:32:18,967 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 01:32:18,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-22 01:32:18,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 01:32:18,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 01:32:18,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 01:32:18,968 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 01:32:18,970 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-22 01:32:18,971 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e7687da568dfe273ac225f01dbc8df1f76ef15d8b8e5d222cf6fab4c622d621 [2022-07-22 01:32:19,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 01:32:19,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 01:32:19,294 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 01:32:19,295 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 01:32:19,300 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 01:32:19,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c [2022-07-22 01:32:19,370 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c4f81b58/c27ea5f6beb04a95aebde9ec43711657/FLAG6350d649e [2022-07-22 01:32:19,789 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 01:32:19,789 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/dijkstra2-both-nt.c [2022-07-22 01:32:19,795 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c4f81b58/c27ea5f6beb04a95aebde9ec43711657/FLAG6350d649e [2022-07-22 01:32:20,207 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c4f81b58/c27ea5f6beb04a95aebde9ec43711657 [2022-07-22 01:32:20,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 01:32:20,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 01:32:20,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 01:32:20,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 01:32:20,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 01:32:20,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7dc0ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20, skipping insertion in model container [2022-07-22 01:32:20,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 01:32:20,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 01:32:20,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:32:20,343 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 01:32:20,361 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 01:32:20,371 INFO L208 MainTranslator]: Completed translation [2022-07-22 01:32:20,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20 WrapperNode [2022-07-22 01:32:20,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 01:32:20,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 01:32:20,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 01:32:20,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 01:32:20,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,402 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2022-07-22 01:32:20,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 01:32:20,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 01:32:20,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 01:32:20,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 01:32:20,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 01:32:20,432 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 01:32:20,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 01:32:20,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 01:32:20,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (1/1) ... [2022-07-22 01:32:20,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-22 01:32:20,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:32:20,481 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 01:32:20,483 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 01:32:20,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 01:32:20,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 01:32:20,566 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 01:32:20,568 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 01:32:20,709 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 01:32:20,714 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 01:32:20,715 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 01:32:20,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:32:20 BoogieIcfgContainer [2022-07-22 01:32:20,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 01:32:20,719 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-22 01:32:20,719 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-22 01:32:20,721 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-22 01:32:20,722 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:32:20,722 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.07 01:32:20" (1/3) ... [2022-07-22 01:32:20,723 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cf75430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:32:20, skipping insertion in model container [2022-07-22 01:32:20,723 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:32:20,724 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 01:32:20" (2/3) ... [2022-07-22 01:32:20,724 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6cf75430 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.07 01:32:20, skipping insertion in model container [2022-07-22 01:32:20,724 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-22 01:32:20,724 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:32:20" (3/3) ... [2022-07-22 01:32:20,726 INFO L354 chiAutomizerObserver]: Analyzing ICFG dijkstra2-both-nt.c [2022-07-22 01:32:20,797 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-22 01:32:20,797 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-22 01:32:20,798 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-22 01:32:20,798 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-22 01:32:20,798 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-22 01:32:20,798 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-22 01:32:20,799 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-22 01:32:20,799 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-22 01:32:20,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 01:32:20,824 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:32:20,824 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:32:20,824 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:32:20,830 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 01:32:20,830 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:32:20,830 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-22 01:32:20,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 10 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 states have internal predecessors, (14), 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 01:32:20,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2022-07-22 01:32:20,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-22 01:32:20,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-22 01:32:20,833 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-22 01:32:20,833 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1] [2022-07-22 01:32:20,839 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_~n~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~h~0#1;havoc main_~n~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~h~0#1;main_~n~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~p~0#1 := 0;main_~q~0#1 := 1;main_~r~0#1 := main_~n~0#1;main_~h~0#1 := 0; 7#L40true assume main_~q~0#1 > main_~n~0#1; 8#L51-1true [2022-07-22 01:32:20,840 INFO L754 eck$LassoCheckResult]: Loop: 8#L51-1true assume !!(main_~p~0#1 * main_~p~0#1 + main_~r~0#1 * main_~q~0#1 == main_~n~0#1 * main_~q~0#1); 4#L51true assume !(4 * (if main_~q~0#1 < 0 && 0 != main_~q~0#1 % 4 then 1 + main_~q~0#1 / 4 else main_~q~0#1 / 4) == main_~q~0#1 && 2 * (if main_~p~0#1 < 0 && 0 != main_~p~0#1 % 2 then 1 + main_~p~0#1 / 2 else main_~p~0#1 / 2) == main_~p~0#1); 8#L51-1true [2022-07-22 01:32:20,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:32:20,846 INFO L85 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2022-07-22 01:32:20,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:32:20,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587220599] [2022-07-22 01:32:20,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:32:20,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:32:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:32:20,960 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:32:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:32:20,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:32:21,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:32:21,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1420, now seen corresponding path program 1 times [2022-07-22 01:32:21,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:32:21,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250554447] [2022-07-22 01:32:21,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:32:21,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:32:21,013 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:32:21,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2059966295] [2022-07-22 01:32:21,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:32:21,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:32:21,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:32:21,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:32:21,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 01:32:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:32:21,086 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:32:21,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:32:21,105 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:32:21,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 01:32:21,107 INFO L85 PathProgramCache]: Analyzing trace with hash 28693997, now seen corresponding path program 1 times [2022-07-22 01:32:21,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 01:32:21,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592232379] [2022-07-22 01:32:21,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:32:21,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 01:32:21,124 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 01:32:21,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [39564998] [2022-07-22 01:32:21,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 01:32:21,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 01:32:21,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 01:32:21,147 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 01:32:21,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 01:32:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:32:21,217 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-22 01:32:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-22 01:32:21,225 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-22 01:32:33,400 WARN L233 SmtUtils]: Spent 12.17s on a formula simplification that was a NOOP. DAG size: 37 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 01:32:45,932 WARN L233 SmtUtils]: Spent 12.48s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 927] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2022-07-22 01:32:58,017 WARN L233 SmtUtils]: Spent 12.03s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-07-22 01:32:58,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.07 01:32:58 BoogieIcfgContainer [2022-07-22 01:32:58,121 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-22 01:32:58,122 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-22 01:32:58,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-22 01:32:58,123 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-22 01:32:58,123 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 01:32:20" (3/4) ... [2022-07-22 01:32:58,125 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-22 01:32:58,161 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-22 01:32:58,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-22 01:32:58,168 INFO L158 Benchmark]: Toolchain (without parser) took 37952.31ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.4MB in the beginning and 32.1MB in the end (delta: -770.4kB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2022-07-22 01:32:58,168 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 01:32:58,169 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.76ms. Allocated memory is still 54.5MB. Free memory was 31.1MB in the beginning and 37.8MB in the end (delta: -6.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-22 01:32:58,169 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.47ms. Allocated memory is still 54.5MB. Free memory was 37.7MB in the beginning and 36.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:32:58,171 INFO L158 Benchmark]: Boogie Preprocessor took 27.53ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 36.3MB in the beginning and 50.3MB in the end (delta: -14.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2022-07-22 01:32:58,171 INFO L158 Benchmark]: RCFGBuilder took 285.19ms. Allocated memory is still 67.1MB. Free memory was 50.3MB in the beginning and 41.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-22 01:32:58,171 INFO L158 Benchmark]: BuchiAutomizer took 37402.48ms. Allocated memory is still 67.1MB. Free memory was 41.7MB in the beginning and 33.9MB in the end (delta: 7.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-07-22 01:32:58,172 INFO L158 Benchmark]: Witness Printer took 39.93ms. Allocated memory is still 67.1MB. Free memory was 33.9MB in the beginning and 32.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-22 01:32:58,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 54.5MB. Free memory is still 35.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.76ms. Allocated memory is still 54.5MB. Free memory was 31.1MB in the beginning and 37.8MB in the end (delta: -6.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.47ms. Allocated memory is still 54.5MB. Free memory was 37.7MB in the beginning and 36.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.53ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 36.3MB in the beginning and 50.3MB in the end (delta: -14.0MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * RCFGBuilder took 285.19ms. Allocated memory is still 67.1MB. Free memory was 50.3MB in the beginning and 41.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 37402.48ms. Allocated memory is still 67.1MB. Free memory was 41.7MB in the beginning and 33.9MB in the end (delta: 7.8MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Witness Printer took 39.93ms. Allocated memory is still 67.1MB. Free memory was 33.9MB in the beginning and 32.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 37.3s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 37.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 41]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {h=0, q=1, r=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d955eaf=0, p=0, n=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 41]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L22] int n, p, q, r, h; [L24] n = __VERIFIER_nondet_int() [L26] p = 0 [L27] q = 1 [L28] r = n [L29] h = 0 [L40] COND TRUE q > n Loop: [L41] COND TRUE p*p + r*q == n*q [L51] COND FALSE !(4 * (q / 4) == q && 2 * (p / 2) == p) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-07-22 01:32:58,226 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 01:32:58,432 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-22 01:32:58,622 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)