./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/PastaC7.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 791161d1 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-restricted-15/PastaC7.c -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 95843418c183b3230e10891e454500bf057d0efd9a107bb446b5d49809d39de3 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 14:19:09,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 14:19:09,017 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 14:19:09,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 14:19:09,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 14:19:09,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 14:19:09,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 14:19:09,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 14:19:09,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 14:19:09,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 14:19:09,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 14:19:09,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 14:19:09,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 14:19:09,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 14:19:09,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 14:19:09,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 14:19:09,073 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 14:19:09,074 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 14:19:09,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 14:19:09,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 14:19:09,082 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 14:19:09,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 14:19:09,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 14:19:09,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 14:19:09,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 14:19:09,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 14:19:09,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 14:19:09,090 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 14:19:09,091 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 14:19:09,092 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 14:19:09,093 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 14:19:09,093 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 14:19:09,094 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 14:19:09,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 14:19:09,095 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 14:19:09,096 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 14:19:09,096 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 14:19:09,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 14:19:09,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 14:19:09,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 14:19:09,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 14:19:09,098 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 14:19:09,100 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2022-07-23 14:19:09,124 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 14:19:09,125 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 14:19:09,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 14:19:09,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 14:19:09,127 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 14:19:09,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 14:19:09,127 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 14:19:09,127 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-23 14:19:09,127 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-23 14:19:09,128 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-23 14:19:09,128 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-23 14:19:09,128 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-23 14:19:09,129 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-23 14:19:09,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 14:19:09,129 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-23 14:19:09,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 14:19:09,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 14:19:09,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-23 14:19:09,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-23 14:19:09,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-23 14:19:09,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 14:19:09,131 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-23 14:19:09,131 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 14:19:09,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-23 14:19:09,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 14:19:09,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 14:19:09,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 14:19:09,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 14:19:09,133 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-23 14:19:09,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95843418c183b3230e10891e454500bf057d0efd9a107bb446b5d49809d39de3 [2022-07-23 14:19:09,325 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 14:19:09,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 14:19:09,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 14:19:09,346 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 14:19:09,346 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 14:19:09,347 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/PastaC7.c [2022-07-23 14:19:09,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef227787d/2a0792b9bb9545c89680e77e27d8d49c/FLAG693a5c810 [2022-07-23 14:19:09,826 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 14:19:09,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/PastaC7.c [2022-07-23 14:19:09,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef227787d/2a0792b9bb9545c89680e77e27d8d49c/FLAG693a5c810 [2022-07-23 14:19:09,852 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef227787d/2a0792b9bb9545c89680e77e27d8d49c [2022-07-23 14:19:09,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 14:19:09,856 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 14:19:09,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 14:19:09,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 14:19:09,879 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 14:19:09,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:19:09" (1/1) ... [2022-07-23 14:19:09,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57b20577 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:09, skipping insertion in model container [2022-07-23 14:19:09,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 02:19:09" (1/1) ... [2022-07-23 14:19:09,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 14:19:09,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 14:19:10,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:19:10,043 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 14:19:10,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 14:19:10,057 INFO L208 MainTranslator]: Completed translation [2022-07-23 14:19:10,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10 WrapperNode [2022-07-23 14:19:10,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 14:19:10,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 14:19:10,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 14:19:10,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 14:19:10,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (1/1) ... [2022-07-23 14:19:10,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (1/1) ... [2022-07-23 14:19:10,077 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-07-23 14:19:10,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 14:19:10,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 14:19:10,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 14:19:10,078 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 14:19:10,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (1/1) ... [2022-07-23 14:19:10,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (1/1) ... [2022-07-23 14:19:10,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (1/1) ... [2022-07-23 14:19:10,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (1/1) ... [2022-07-23 14:19:10,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (1/1) ... [2022-07-23 14:19:10,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (1/1) ... [2022-07-23 14:19:10,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (1/1) ... [2022-07-23 14:19:10,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 14:19:10,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 14:19:10,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 14:19:10,093 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 14:19:10,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (1/1) ... [2022-07-23 14:19:10,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:10,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:10,126 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) [2022-07-23 14:19:10,136 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 [2022-07-23 14:19:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 14:19:10,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 14:19:10,205 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 14:19:10,207 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 14:19:10,268 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 14:19:10,273 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 14:19:10,273 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-23 14:19:10,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:19:10 BoogieIcfgContainer [2022-07-23 14:19:10,274 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 14:19:10,275 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-23 14:19:10,275 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-23 14:19:10,278 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-23 14:19:10,278 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:19:10,279 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.07 02:19:09" (1/3) ... [2022-07-23 14:19:10,279 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c0f1e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:19:10, skipping insertion in model container [2022-07-23 14:19:10,279 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:19:10,280 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 02:19:10" (2/3) ... [2022-07-23 14:19:10,280 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c0f1e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.07 02:19:10, skipping insertion in model container [2022-07-23 14:19:10,280 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-23 14:19:10,280 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 02:19:10" (3/3) ... [2022-07-23 14:19:10,281 INFO L354 chiAutomizerObserver]: Analyzing ICFG PastaC7.c [2022-07-23 14:19:10,318 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-23 14:19:10,318 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-23 14:19:10,318 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-23 14:19:10,319 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-23 14:19:10,319 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-23 14:19:10,319 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-23 14:19:10,319 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-23 14:19:10,319 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-23 14:19:10,322 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-07-23 14:19:10,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-23 14:19:10,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:10,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:10,336 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:19:10,336 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-23 14:19:10,336 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-23 14:19:10,336 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-07-23 14:19:10,337 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2022-07-23 14:19:10,337 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-23 14:19:10,337 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-23 14:19:10,337 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-23 14:19:10,338 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1] [2022-07-23 14:19:10,342 INFO L752 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_#t~nondet2#1, main_~i~0#1, main_~j~0#1, main_~k~0#1, main_~t~0#1;havoc main_~i~0#1;havoc main_~j~0#1;havoc main_~k~0#1;havoc main_~t~0#1;main_~i~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~j~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~k~0#1 := main_#t~nondet2#1;havoc main_#t~nondet2#1; 6#L14-2true [2022-07-23 14:19:10,342 INFO L754 eck$LassoCheckResult]: Loop: 6#L14-2true assume !!(main_~i~0#1 <= 100 && main_~j~0#1 < main_~k~0#1);main_~i~0#1 := main_~j~0#1;main_~j~0#1 := 1 + main_~i~0#1;main_~k~0#1 := main_~k~0#1 - 1; 6#L14-2true [2022-07-23 14:19:10,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:10,347 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-23 14:19:10,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:10,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074859928] [2022-07-23 14:19:10,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:10,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:10,404 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:10,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:10,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:10,419 INFO L85 PathProgramCache]: Analyzing trace with hash 42, now seen corresponding path program 1 times [2022-07-23 14:19:10,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:10,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353581261] [2022-07-23 14:19:10,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:10,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:10,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:10,431 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:10,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:10,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 14:19:10,439 INFO L85 PathProgramCache]: Analyzing trace with hash 29864, now seen corresponding path program 1 times [2022-07-23 14:19:10,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 14:19:10,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904368692] [2022-07-23 14:19:10,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 14:19:10,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 14:19:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:10,445 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-23 14:19:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-23 14:19:10,450 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-23 14:19:10,506 INFO L210 LassoAnalysis]: Preferences: [2022-07-23 14:19:10,506 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2022-07-23 14:19:10,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2022-07-23 14:19:10,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2022-07-23 14:19:10,507 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2022-07-23 14:19:10,507 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:10,507 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2022-07-23 14:19:10,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2022-07-23 14:19:10,507 INFO L133 ssoRankerPreferences]: Filename of dumped script: PastaC7.c_Iteration1_Loop [2022-07-23 14:19:10,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2022-07-23 14:19:10,508 INFO L276 LassoAnalysis]: Starting lasso preprocessing... [2022-07-23 14:19:10,519 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:10,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:10,538 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2022-07-23 14:19:10,605 INFO L294 LassoAnalysis]: Preprocessing complete. [2022-07-23 14:19:10,605 INFO L404 LassoAnalysis]: Checking for nontermination... [2022-07-23 14:19:10,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:10,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:10,616 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) [2022-07-23 14:19:10,617 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 [2022-07-23 14:19:10,620 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2022-07-23 14:19:10,620 INFO L160 nArgumentSynthesizer]: Using integer mode. [2022-07-23 14:19:10,656 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 [2022-07-23 14:19:10,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-23 14:19:10,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 14:19:10,657 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) [2022-07-23 14:19:10,658 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 [2022-07-23 14:19:10,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2022-07-23 14:19:10,660 INFO L160 nArgumentSynthesizer]: Using integer mode.